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https://github.com/jpetazzo/container.training.git
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Compare commits
3 Commits
gitpod
...
2020-02-vm
| Author | SHA1 | Date | |
|---|---|---|---|
|
e04258f23b | ||
|
|
2345073525 | ||
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|
eadaf3fbcd |
@@ -1 +0,0 @@
|
||||
image: jpetazzo/shpod
|
||||
@@ -366,34 +366,6 @@ EOF
|
||||
sudo systemctl start pinger"
|
||||
}
|
||||
|
||||
_cmd tailhist "Install history viewer on port 1088"
|
||||
_cmd_tailhist () {
|
||||
TAG=$1
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||||
need_tag
|
||||
|
||||
pssh "
|
||||
wget https://github.com/joewalnes/websocketd/releases/download/v0.3.0/websocketd-0.3.0_amd64.deb
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sudo dpkg -i websocketd-0.3.0_amd64.deb
|
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sudo mkdir -p /tmp/tailhist
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sudo tee /root/tailhist.service <<EOF
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[Unit]
|
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Description=tailhist
|
||||
|
||||
[Install]
|
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WantedBy=multi-user.target
|
||||
|
||||
[Service]
|
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WorkingDirectory=/tmp/tailhist
|
||||
ExecStart=/usr/bin/websocketd --port=1088 --staticdir=. sh -c \"tail -n +1 -f /home/docker/.history || echo 'Could not read history file. Perhaps you need to \\\"chmod +r .history\\\"?'\"
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User=nobody
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Group=nogroup
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Restart=always
|
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EOF
|
||||
sudo systemctl enable /root/tailhist.service
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sudo systemctl start tailhist"
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pssh -I sudo tee /tmp/tailhist/index.html <lib/tailhist.html
|
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}
|
||||
|
||||
_cmd opensg "Open the default security group to ALL ingress traffic"
|
||||
_cmd_opensg() {
|
||||
need_infra $1
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||||
|
||||
@@ -42,15 +42,13 @@ print("Generated ips.html")
|
||||
|
||||
try:
|
||||
import pdfkit
|
||||
paper_size = context["paper_size"]
|
||||
margin = {"A4": "0.5cm", "Letter": "0.2in"}[paper_size]
|
||||
with open("ips.html") as f:
|
||||
pdfkit.from_file(f, "ips.pdf", options={
|
||||
"page-size": paper_size,
|
||||
"margin-top": margin,
|
||||
"margin-bottom": margin,
|
||||
"margin-left": margin,
|
||||
"margin-right": margin,
|
||||
"page-size": context["paper_size"],
|
||||
"margin-top": context["paper_margin"],
|
||||
"margin-bottom": context["paper_margin"],
|
||||
"margin-left": context["paper_margin"],
|
||||
"margin-right": context["paper_margin"],
|
||||
})
|
||||
print("Generated ips.pdf")
|
||||
except ImportError:
|
||||
|
||||
@@ -65,15 +65,6 @@ system("""sudo -u docker tee -a /home/docker/.bashrc <<SQRL
|
||||
export PS1='\e[1m\e[31m[{}] \e[32m(\\$(docker-prompt)) \e[34m\u@\h\e[35m \w\e[0m\n$ '
|
||||
SQRL""".format(ipv4))
|
||||
|
||||
# Bigger history, in a different file, and saved before executing each command
|
||||
system("""sudo -u docker tee -a /home/docker/.bashrc <<SQRL
|
||||
export HISTSIZE=9999
|
||||
export HISTFILESIZE=9999
|
||||
shopt -s histappend
|
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trap 'history -a' DEBUG
|
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export HISTFILE=~/.history
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SQRL""")
|
||||
|
||||
# Custom .vimrc
|
||||
system("""sudo -u docker tee /home/docker/.vimrc <<SQRL
|
||||
syntax on
|
||||
|
||||
@@ -1,42 +0,0 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<title>bash history</title>
|
||||
<style>
|
||||
#log {
|
||||
font: bold 24px courier;
|
||||
}
|
||||
|
||||
#log div:last-child {
|
||||
background: yellow;
|
||||
}
|
||||
</style>
|
||||
</head>
|
||||
<body>
|
||||
|
||||
<div id="log"></div>
|
||||
|
||||
<script>
|
||||
var ws = new WebSocket('ws://' + (location.host ? location.host : "localhost:8080") + "/");
|
||||
var log = document.getElementById('log');
|
||||
var echo = function(text) {
|
||||
var line = document.createElement('div');
|
||||
line.textContent = text;
|
||||
log.appendChild(line);
|
||||
line.scrollIntoView();
|
||||
}
|
||||
ws.onopen = function() {
|
||||
document.body.style.backgroundColor = '#cfc';
|
||||
};
|
||||
ws.onclose = function() {
|
||||
document.body.style.backgroundColor = '#fcc';
|
||||
echo("Disconnected from server. Try to reload this page?");
|
||||
};
|
||||
ws.onmessage = function(event) {
|
||||
echo(event.data);
|
||||
};
|
||||
</script>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
|
||||
@@ -1,49 +0,0 @@
|
||||
#!/usr/bin/env python
|
||||
import os
|
||||
import requests
|
||||
import yaml
|
||||
|
||||
# configurable stuff
|
||||
domains_file = "../../plentydomains/domains.txt"
|
||||
config_file = os.path.join(
|
||||
os.environ["HOME"], ".config/gandi/config.yaml")
|
||||
tag = "test"
|
||||
apiurl = "https://dns.api.gandi.net/api/v5/domains"
|
||||
|
||||
# inferred stuff
|
||||
domains = open(domains_file).read().split()
|
||||
apikey = yaml.safe_load(open(config_file))["apirest"]["key"]
|
||||
ips = open(f"tags/{tag}/ips.txt").read().split()
|
||||
settings_file = f"tags/{tag}/settings.yaml"
|
||||
clustersize = yaml.safe_load(open(settings_file))["clustersize"]
|
||||
|
||||
# now do the fucking work
|
||||
while domains and ips:
|
||||
domain = domains[0]
|
||||
domains = domains[1:]
|
||||
cluster = ips[:clustersize]
|
||||
ips = ips[clustersize:]
|
||||
print(f"{domain} => {cluster}")
|
||||
zone = ""
|
||||
node = 0
|
||||
for ip in cluster:
|
||||
node += 1
|
||||
zone += f"@ 300 IN A {ip}\n"
|
||||
zone += f"* 300 IN A {ip}\n"
|
||||
zone += f"node{node} 300 IN A {ip}\n"
|
||||
r = requests.put(
|
||||
f"{apiurl}/{domain}/records",
|
||||
headers={"x-api-key": apikey},
|
||||
data=zone)
|
||||
print(r.text)
|
||||
|
||||
#r = requests.get(
|
||||
# f"{apiurl}/{domain}/records",
|
||||
# headers={"x-api-key": apikey},
|
||||
# )
|
||||
|
||||
if domains:
|
||||
print(f"Good, we have {len(domains)} domains left.")
|
||||
|
||||
if ips:
|
||||
print(f"Crap, we have {len(ips)} IP addresses left.")
|
||||
@@ -10,6 +10,13 @@ cards_template: cards.html
|
||||
# Use "Letter" in the US, and "A4" everywhere else
|
||||
paper_size: A4
|
||||
|
||||
# Feel free to reduce this if your printer can handle it
|
||||
paper_margin: 0.2in
|
||||
|
||||
# Note: paper_size and paper_margin only apply to PDF generated with pdfkit.
|
||||
# If you print (or generate a PDF) using ips.html, they will be ignored.
|
||||
# (The equivalent parameters must be set from the browser's print dialog.)
|
||||
|
||||
# This can be "test" or "stable"
|
||||
engine_version: stable
|
||||
|
||||
|
||||
@@ -10,6 +10,13 @@ cards_template: cards.html
|
||||
# Use "Letter" in the US, and "A4" everywhere else
|
||||
paper_size: A4
|
||||
|
||||
# Feel free to reduce this if your printer can handle it
|
||||
paper_margin: 0.2in
|
||||
|
||||
# Note: paper_size and paper_margin only apply to PDF generated with pdfkit.
|
||||
# If you print (or generate a PDF) using ips.html, they will be ignored.
|
||||
# (The equivalent parameters must be set from the browser's print dialog.)
|
||||
|
||||
# This can be "test" or "stable"
|
||||
engine_version: stable
|
||||
|
||||
|
||||
@@ -10,6 +10,13 @@ cards_template: cards.html
|
||||
# Use "Letter" in the US, and "A4" everywhere else
|
||||
paper_size: A4
|
||||
|
||||
# Feel free to reduce this if your printer can handle it
|
||||
paper_margin: 0.2in
|
||||
|
||||
# Note: paper_size and paper_margin only apply to PDF generated with pdfkit.
|
||||
# If you print (or generate a PDF) using ips.html, they will be ignored.
|
||||
# (The equivalent parameters must be set from the browser's print dialog.)
|
||||
|
||||
# This can be "test" or "stable"
|
||||
engine_version: stable
|
||||
|
||||
|
||||
@@ -10,6 +10,13 @@ cards_template: cards.html
|
||||
# Use "Letter" in the US, and "A4" everywhere else
|
||||
paper_size: A4
|
||||
|
||||
# Feel free to reduce this if your printer can handle it
|
||||
paper_margin: 0.2in
|
||||
|
||||
# Note: paper_size and paper_margin only apply to PDF generated with pdfkit.
|
||||
# If you print (or generate a PDF) using ips.html, they will be ignored.
|
||||
# (The equivalent parameters must be set from the browser's print dialog.)
|
||||
|
||||
# This can be "test" or "stable"
|
||||
engine_version: stable
|
||||
|
||||
|
||||
@@ -12,6 +12,13 @@ cards_template: cards.html
|
||||
# Use "Letter" in the US, and "A4" everywhere else
|
||||
paper_size: Letter
|
||||
|
||||
# Feel free to reduce this if your printer can handle it
|
||||
paper_margin: 0.2in
|
||||
|
||||
# Note: paper_size and paper_margin only apply to PDF generated with pdfkit.
|
||||
# If you print (or generate a PDF) using ips.html, they will be ignored.
|
||||
# (The equivalent parameters must be set from the browser's print dialog.)
|
||||
|
||||
# This can be "test" or "stable"
|
||||
engine_version: test
|
||||
|
||||
|
||||
@@ -12,11 +12,18 @@ cards_template: cards.html
|
||||
# Use "Letter" in the US, and "A4" everywhere else
|
||||
paper_size: Letter
|
||||
|
||||
# Feel free to reduce this if your printer can handle it
|
||||
paper_margin: 0.2in
|
||||
|
||||
# Note: paper_size and paper_margin only apply to PDF generated with pdfkit.
|
||||
# If you print (or generate a PDF) using ips.html, they will be ignored.
|
||||
# (The equivalent parameters must be set from the browser's print dialog.)
|
||||
|
||||
# This can be "test" or "stable"
|
||||
engine_version: stable
|
||||
|
||||
# These correspond to the version numbers visible on their respective GitHub release pages
|
||||
compose_version: 1.25.4
|
||||
compose_version: 1.24.1
|
||||
machine_version: 0.15.0
|
||||
|
||||
# Password used to connect with the "docker user"
|
||||
|
||||
@@ -10,13 +10,19 @@ cards_template: cards.html
|
||||
# Use "Letter" in the US, and "A4" everywhere else
|
||||
paper_size: Letter
|
||||
|
||||
# Feel free to reduce this if your printer can handle it
|
||||
paper_margin: 0.2in
|
||||
|
||||
# Note: paper_size and paper_margin only apply to PDF generated with pdfkit.
|
||||
# If you print (or generate a PDF) using ips.html, they will be ignored.
|
||||
# (The equivalent parameters must be set from the browser's print dialog.)
|
||||
|
||||
# This can be "test" or "stable"
|
||||
engine_version: stable
|
||||
|
||||
# These correspond to the version numbers visible on their respective GitHub release pages
|
||||
compose_version: 1.25.4
|
||||
compose_version: 1.24.1
|
||||
machine_version: 0.14.0
|
||||
|
||||
# Password used to connect with the "docker user"
|
||||
docker_user_password: training
|
||||
|
||||
|
||||
@@ -12,6 +12,13 @@ cards_template: cards.html
|
||||
# Use "Letter" in the US, and "A4" everywhere else
|
||||
paper_size: Letter
|
||||
|
||||
# Feel free to reduce this if your printer can handle it
|
||||
paper_margin: 0.2in
|
||||
|
||||
# Note: paper_size and paper_margin only apply to PDF generated with pdfkit.
|
||||
# If you print (or generate a PDF) using ips.html, they will be ignored.
|
||||
# (The equivalent parameters must be set from the browser's print dialog.)
|
||||
|
||||
# This can be "test" or "stable"
|
||||
engine_version: stable
|
||||
|
||||
|
||||
@@ -12,6 +12,13 @@ cards_template: cards.html
|
||||
# Use "Letter" in the US, and "A4" everywhere else
|
||||
paper_size: Letter
|
||||
|
||||
# Feel free to reduce this if your printer can handle it
|
||||
paper_margin: 0.2in
|
||||
|
||||
# Note: paper_size and paper_margin only apply to PDF generated with pdfkit.
|
||||
# If you print (or generate a PDF) using ips.html, they will be ignored.
|
||||
# (The equivalent parameters must be set from the browser's print dialog.)
|
||||
|
||||
# This can be "test" or "stable"
|
||||
engine_version: stable
|
||||
|
||||
|
||||
@@ -18,14 +18,8 @@
|
||||
| default("kube") -%}
|
||||
{%- set clusternumber = clusternumber
|
||||
| default(None) -%}
|
||||
{%- if qrcode == True -%}
|
||||
{%- set qrcode = "https://container.training/q" -%}
|
||||
{%- elif qrcode -%}
|
||||
{%- set qrcode = qrcode -%}
|
||||
{%- endif -%}
|
||||
|
||||
{# You can also set img_bottom_src instead. #}
|
||||
{%- set img_logo_src = {
|
||||
{%- set image_src = {
|
||||
"docker": "https://s3-us-west-2.amazonaws.com/www.breadware.com/integrations/docker.png",
|
||||
"swarm": "https://cdn.wp.nginx.com/wp-content/uploads/2016/07/docker-swarm-hero2.png",
|
||||
"kube": "https://avatars1.githubusercontent.com/u/13629408",
|
||||
@@ -91,33 +85,9 @@
|
||||
{%- endif -%}
|
||||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
|
||||
<html>
|
||||
<head>
|
||||
<style>
|
||||
<head><style>
|
||||
@import url('https://fonts.googleapis.com/css?family=Slabo+27px');
|
||||
|
||||
{% if paper_size == "A4" %}
|
||||
@page {
|
||||
size: A4; /* Change from the default size of A4 */
|
||||
margin: 0.5cm; /* Set margin on each page */
|
||||
}
|
||||
body {
|
||||
/* this is A4 minus 0.5cm margins */
|
||||
width: 20cm;
|
||||
height: 28.7cm;
|
||||
}
|
||||
{% elif paper_size == "Letter" %}
|
||||
@page {
|
||||
size: Letter;
|
||||
margin: 0.2in;
|
||||
}
|
||||
body {
|
||||
/* this is Letter minus 0.2in margins */
|
||||
width: 8.6in;
|
||||
heigth: 10.6in;
|
||||
}
|
||||
{% endif %}
|
||||
|
||||
|
||||
body, table {
|
||||
margin: 0;
|
||||
padding: 0;
|
||||
@@ -138,45 +108,53 @@ div {
|
||||
float: left;
|
||||
border: 1px dotted black;
|
||||
{% if backside %}
|
||||
height: 33%;
|
||||
height: 31%;
|
||||
{% endif %}
|
||||
padding-top: 1%;
|
||||
padding-bottom: 1%;
|
||||
/* columns * (width+left+right) < 100% */
|
||||
/*
|
||||
width: 24.8%;
|
||||
width: 21.5%;
|
||||
padding-left: 1.5%;
|
||||
padding-right: 1.5%;
|
||||
*/
|
||||
/**/
|
||||
width: 33%;
|
||||
width: 30%;
|
||||
padding-left: 1.5%;
|
||||
padding-right: 1.5%;
|
||||
/**/
|
||||
}
|
||||
|
||||
p {
|
||||
margin: 0.8em;
|
||||
margin: 0.4em 0 0.4em 0;
|
||||
}
|
||||
|
||||
div.back {
|
||||
border: 1px dotted grey;
|
||||
border: 1px dotted white;
|
||||
}
|
||||
|
||||
span.scale {
|
||||
white-space: nowrap;
|
||||
div.back p {
|
||||
margin: 0.5em 1em 0 1em;
|
||||
}
|
||||
|
||||
img.logo {
|
||||
height: 4.5em;
|
||||
img {
|
||||
height: 4em;
|
||||
float: right;
|
||||
}
|
||||
|
||||
img.bottom {
|
||||
height: 2.5em;
|
||||
display: block;
|
||||
margin: 0.5em auto;
|
||||
margin-right: -0.2em;
|
||||
}
|
||||
|
||||
.qrcode img {
|
||||
width: 40%;
|
||||
margin: 1em;
|
||||
/*
|
||||
img.enix {
|
||||
height: 4.0em;
|
||||
margin-top: 0.4em;
|
||||
}
|
||||
|
||||
img.kube {
|
||||
height: 4.2em;
|
||||
margin-top: 1.7em;
|
||||
}
|
||||
*/
|
||||
|
||||
.logpass {
|
||||
font-family: monospace;
|
||||
font-weight: bold;
|
||||
@@ -186,43 +164,16 @@ img.bottom {
|
||||
page-break-after: always;
|
||||
clear: both;
|
||||
display: block;
|
||||
height: 0;
|
||||
height: 8px;
|
||||
}
|
||||
</style>
|
||||
<script type="text/javascript" src="https://cdn.rawgit.com/davidshimjs/qrcodejs/gh-pages/qrcode.min.js"></script>
|
||||
<script type="text/javascript">
|
||||
function qrcodes() {
|
||||
[].forEach.call(
|
||||
document.getElementsByClassName("qrcode"),
|
||||
(e, index) => {
|
||||
new QRCode(e, {
|
||||
text: "{{ qrcode }}",
|
||||
correctLevel: QRCode.CorrectLevel.L
|
||||
});
|
||||
}
|
||||
);
|
||||
}
|
||||
|
||||
function scale() {
|
||||
[].forEach.call(
|
||||
document.getElementsByClassName("scale"),
|
||||
(e, index) => {
|
||||
var text_width = e.getBoundingClientRect().width;
|
||||
var box_width = e.parentElement.getBoundingClientRect().width;
|
||||
var percent = 100 * box_width / text_width + "%";
|
||||
e.style.fontSize = percent;
|
||||
}
|
||||
);
|
||||
}
|
||||
</script>
|
||||
</head>
|
||||
<body onload="qrcodes(); scale();">
|
||||
</style></head>
|
||||
<body>
|
||||
{% for cluster in clusters %}
|
||||
<div>
|
||||
<p>{{ intro }}</p>
|
||||
<p>
|
||||
{% if img_logo_src %}
|
||||
<img class="logo" src="{{ img_logo_src }}" />
|
||||
{% if image_src %}
|
||||
<img src="{{ image_src }}" />
|
||||
{% endif %}
|
||||
<table>
|
||||
{% if clusternumber != None %}
|
||||
@@ -251,12 +202,7 @@ function scale() {
|
||||
<p>
|
||||
{% if url %}
|
||||
{{ slides_are_at }}
|
||||
<p>
|
||||
<span class="scale">{{ url }}</span>
|
||||
</p>
|
||||
{% endif %}
|
||||
{% if img_bottom_src %}
|
||||
<img class="bottom" src="{{ img_bottom_src }}" />
|
||||
<center>{{ url }}</center>
|
||||
{% endif %}
|
||||
</p>
|
||||
</div>
|
||||
@@ -265,21 +211,18 @@ function scale() {
|
||||
{% if backside %}
|
||||
{% for x in range(pagesize) %}
|
||||
<div class="back">
|
||||
<p>Thanks for attending
|
||||
<br/>
|
||||
<p>You got this at the workshop
|
||||
"Getting Started With Kubernetes and Container Orchestration"
|
||||
during CONFERENCE in Month YYYY!</p>
|
||||
during QCON London (March 2019).</p>
|
||||
<p>If you liked that workshop,
|
||||
I can train your team, in person or
|
||||
online, with custom courses of
|
||||
any length and any level.
|
||||
I can train your team or organization
|
||||
on Docker, container, and Kubernetes,
|
||||
with curriculums of 1 to 5 days.
|
||||
</p>
|
||||
{% if qrcode %}
|
||||
<p>If you're interested, please scan that QR code to contact me:</p>
|
||||
<span class="qrcode"></span>
|
||||
{% else %}
|
||||
<p>If you're interested, you can contact me at:</p>
|
||||
{% endif %}
|
||||
<p>Interested? Contact me at:</p>
|
||||
<p>jerome.petazzoni@gmail.com</p>
|
||||
<p>Thank you!</p>
|
||||
</div>
|
||||
{% endfor %}
|
||||
<span class="pagebreak"></span>
|
||||
|
||||
@@ -1,15 +1,10 @@
|
||||
# Uncomment and/or edit one of the the following lines if necessary.
|
||||
#/ /kube-halfday.yml.html 200
|
||||
#/ /kube-fullday.yml.html 200
|
||||
/ /kube-fullday.yml.html 200!
|
||||
#/ /kube-twodays.yml.html 200
|
||||
|
||||
# And this allows to do "git clone https://container.training".
|
||||
/info/refs service=git-upload-pack https://github.com/jpetazzo/container.training/info/refs?service=git-upload-pack
|
||||
|
||||
#/dockermastery https://www.udemy.com/course/docker-mastery/?referralCode=1410924A733D33635CCB
|
||||
#/kubernetesmastery https://www.udemy.com/course/kubernetesmastery/?referralCode=7E09090AF9B79E6C283F
|
||||
/dockermastery https://www.udemy.com/course/docker-mastery/?couponCode=SWEETFEBSALEC1
|
||||
/kubernetesmastery https://www.udemy.com/course/kubernetesmastery/?couponCode=SWEETFEBSALEC4
|
||||
|
||||
# Shortlink for the QRCode
|
||||
/q /qrcode.html 200
|
||||
/dockermastery https://www.udemy.com/course/docker-mastery/?referralCode=1410924A733D33635CCB
|
||||
/kubernetesmastery https://www.udemy.com/course/kubernetesmastery/?referralCode=7E09090AF9B79E6C283F
|
||||
|
||||
@@ -222,63 +222,21 @@ f9e8f1642759 About an hour ago /bin/sh -c apt-get install fi 1.627 MB
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
## Introducing JSON syntax
|
||||
|
||||
## Why `sh -c`?
|
||||
Most Dockerfile arguments can be passed in two forms:
|
||||
|
||||
* On UNIX, to start a new program, we need two system calls:
|
||||
|
||||
- `fork()`, to create a new child process;
|
||||
|
||||
- `execve()`, to replace the new child process with the program to run.
|
||||
|
||||
* Conceptually, `execve()` works like this:
|
||||
|
||||
`execve(program, [list, of, arguments])`
|
||||
|
||||
* When we run a command, e.g. `ls -l /tmp`, something needs to parse the command.
|
||||
|
||||
(i.e. split the program and its arguments into a list.)
|
||||
|
||||
* The shell is usually doing that.
|
||||
|
||||
(It also takes care of expanding environment variables and special things like `~`.)
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
|
||||
## Why `sh -c`?
|
||||
|
||||
* When we do `RUN ls -l /tmp`, the Docker builder needs to parse the command.
|
||||
|
||||
* Instead of implementing its own parser, it outsources the job to the shell.
|
||||
|
||||
* That's why we see `sh -c ls -l /tmp` in that case.
|
||||
|
||||
* But we can also do the parsing jobs ourselves.
|
||||
|
||||
* This means passing `RUN` a list of arguments.
|
||||
|
||||
* This is called the *exec syntax*.
|
||||
|
||||
---
|
||||
|
||||
## Shell syntax vs exec syntax
|
||||
|
||||
Dockerfile commands that execute something can have two forms:
|
||||
|
||||
* plain string, or *shell syntax*:
|
||||
* plain string:
|
||||
<br/>`RUN apt-get install figlet`
|
||||
|
||||
* JSON list, or *exec syntax*:
|
||||
* JSON list:
|
||||
<br/>`RUN ["apt-get", "install", "figlet"]`
|
||||
|
||||
We are going to change our Dockerfile to see how it affects the resulting image.
|
||||
|
||||
---
|
||||
|
||||
## Using exec syntax in our Dockerfile
|
||||
## Using JSON syntax in our Dockerfile
|
||||
|
||||
Let's change our Dockerfile as follows!
|
||||
|
||||
@@ -296,7 +254,7 @@ $ docker build -t figlet .
|
||||
|
||||
---
|
||||
|
||||
## History with exec syntax
|
||||
## JSON syntax vs string syntax
|
||||
|
||||
Compare the new history:
|
||||
|
||||
@@ -311,55 +269,24 @@ IMAGE CREATED CREATED BY SIZE
|
||||
<missing> 4 days ago /bin/sh -c #(nop) ADD file:b 187.8 MB
|
||||
```
|
||||
|
||||
* Exec syntax specifies an *exact* command to execute.
|
||||
* JSON syntax specifies an *exact* command to execute.
|
||||
|
||||
* Shell syntax specifies a command to be wrapped within `/bin/sh -c "..."`.
|
||||
* String syntax specifies a command to be wrapped within `/bin/sh -c "..."`.
|
||||
|
||||
---
|
||||
|
||||
## When to use exec syntax and shell syntax
|
||||
## When to use JSON syntax and string syntax
|
||||
|
||||
* shell syntax:
|
||||
* String syntax:
|
||||
|
||||
* is easier to write
|
||||
* interpolates environment variables and other shell expressions
|
||||
* creates an extra process (`/bin/sh -c ...`) to parse the string
|
||||
* requires `/bin/sh` to exist in the container
|
||||
|
||||
* exec syntax:
|
||||
* JSON syntax:
|
||||
|
||||
* is harder to write (and read!)
|
||||
* passes all arguments without extra processing
|
||||
* doesn't create an extra process
|
||||
* doesn't require `/bin/sh` to exist in the container
|
||||
|
||||
---
|
||||
|
||||
## Pro-tip: the `exec` shell built-in
|
||||
|
||||
POSIX shells have a built-in command named `exec`.
|
||||
|
||||
`exec` should be followed by a program and its arguments.
|
||||
|
||||
From a user perspective:
|
||||
|
||||
- it looks like the shell exits right away after the command execution,
|
||||
|
||||
- in fact, the shell exits just *before* command execution;
|
||||
|
||||
- or rather, the shell gets *replaced* by the command.
|
||||
|
||||
---
|
||||
|
||||
## Example using `exec`
|
||||
|
||||
```dockerfile
|
||||
CMD exec figlet -f script hello
|
||||
```
|
||||
|
||||
In this example, `sh -c` will still be used, but
|
||||
`figlet` will be PID 1 in the container.
|
||||
|
||||
The shell gets replaced by `figlet` when `figlet` starts execution.
|
||||
|
||||
This allows to run processes as PID 1 without using JSON.
|
||||
|
||||
|
Before Width: | Height: | Size: 82 KiB After Width: | Height: | Size: 82 KiB |
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viewBox="0 0 1600 900"
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id="tspan3660"
|
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y="334.98642"
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x="-215.28352"
|
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sodipodi:role="line">$ kubectl create \</tspan><tspan
|
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sodipodi:role="line">$ kubectl run web \</tspan><tspan
|
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style="stroke-width:0.89526182"
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y="379.74951"
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x="-215.28352"
|
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sodipodi:role="line"
|
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id="tspan1139"> deployment web \</tspan><tspan
|
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id="tspan4926"> --image=nginx \</tspan><tspan
|
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style="stroke-width:0.89526182"
|
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y="424.5126"
|
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x="-215.28352"
|
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sodipodi:role="line"
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id="tspan4928"> --image=nginx</tspan></text>
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id="tspan4928"> --replicas=3</tspan></text>
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</g>
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<g
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transform="matrix(2.7869707,0,0,2.7869707,980.45108,349.43174)"
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inkscape:window-y="18"
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|
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id="tspan3660"
|
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y="334.98642"
|
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x="-215.28352"
|
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sodipodi:role="line">$ kubectl create \</tspan><tspan
|
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sodipodi:role="line">$ kubectl run web \</tspan><tspan
|
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style="stroke-width:0.89526182"
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y="379.74951"
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x="-215.28352"
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sodipodi:role="line"
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id="tspan1139"> deployment web \</tspan><tspan
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id="tspan4926"> --image=nginx \</tspan><tspan
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style="stroke-width:0.89526182"
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y="424.5126"
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x="-215.28352"
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sodipodi:role="line"
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id="svg696"
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y="334.98642"
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x="-215.28352"
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sodipodi:role="line"
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id="tspan1146">$ kubectl create \</tspan><tspan
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sodipodi:role="line">$ kubectl run web \</tspan><tspan
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style="stroke-width:0.89526182"
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y="379.74951"
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x="-215.28352"
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sodipodi:role="line"
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id="tspan4926"> --image=nginx \</tspan><tspan
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style="stroke-width:0.89526182"
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speaker: jpetazzo
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title: Kubernetes Intensive Course
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attend: https://qconlondon.com/london2020/workshop/kubernetes-intro
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slides: https://2020-03-qcon.container.training/
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#slides: https://qconuk2019.container.training/
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- date: 2020-03-05
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@@ -14,7 +14,7 @@
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speaker: jpetazzo
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attend: https://qconlondon.com/london2020/workshop/docker-intensive-course
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slides: https://2020-03-qcon.container.training/
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#slides: https://qconuk2019.container.training/
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- date: 2020-02-03
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country: fr
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title: Fondamentaux Conteneurs et Docker (in French)
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lang: fr
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attend: https://enix.io/fr/services/formation/
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slides: https://2020-02-enix.container.training/
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- date: 2020-02-04
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country: fr
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title: Fondamentaux Orchestration et Kubernetes (in French)
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lang: fr
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- date: 2020-02-05
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country: fr
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title: Kubernetes et Méthodologies DevOps (in French)
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lang: fr
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slides: https://2020-02-enix.container.training/
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- date: 2020-02-06
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country: fr
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title: Kubernetes Avancé (in French)
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lang: fr
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attend: https://enix.io/fr/services/formation/
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slides: https://2020-02-enix.container.training/
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- date: 2020-02-07
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country: fr
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title: Opérer Kubernetes (in French)
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lang: fr
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slides: https://2020-02-enix.container.training/
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- date: [2019-11-04, 2019-11-05]
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country: de
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- logistics.md
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#- shared/chat-room-zoom.md
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-
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#- containers/Docker_Overview.md
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# - shared/logistics.md
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- containers/intro.md
|
||||
- shared/about-slides.md
|
||||
#- shared/chat-room-im.md
|
||||
#- shared/chat-room-zoom.md
|
||||
- shared/toc.md
|
||||
- - containers/Docker_Overview.md
|
||||
- containers/Docker_History.md
|
||||
|
||||
@@ -1,77 +0,0 @@
|
||||
title: |
|
||||
Introduction
|
||||
to Containers
|
||||
|
||||
chat: "[Slack](https://dockercommunity.slack.com/messages/C7GKACWDV)"
|
||||
#chat: "[Gitter](https://gitter.im/jpetazzo/workshop-yyyymmdd-city)"
|
||||
|
||||
gitrepo: github.com/jpetazzo/container.training
|
||||
|
||||
slides: http://container.training/
|
||||
|
||||
#slidenumberprefix: "#SomeHashTag — "
|
||||
|
||||
exclude:
|
||||
- self-paced
|
||||
|
||||
chapters:
|
||||
- shared/title.md
|
||||
- logistics.md
|
||||
- containers/intro.md
|
||||
- shared/about-slides.md
|
||||
- shared/chat-room-im.md
|
||||
#- shared/chat-room-zoom.md
|
||||
- shared/toc.md
|
||||
- # DAY 1
|
||||
- containers/Docker_Overview.md
|
||||
#- containers/Docker_History.md
|
||||
- containers/Training_Environment.md
|
||||
- containers/First_Containers.md
|
||||
- containers/Background_Containers.md
|
||||
- containers/Initial_Images.md
|
||||
-
|
||||
- containers/Building_Images_Interactively.md
|
||||
- containers/Building_Images_With_Dockerfiles.md
|
||||
- containers/Cmd_And_Entrypoint.md
|
||||
- containers/Copying_Files_During_Build.md
|
||||
- containers/Exercise_Dockerfile_Basic.md
|
||||
-
|
||||
- containers/Dockerfile_Tips.md
|
||||
- containers/Multi_Stage_Builds.md
|
||||
- containers/Publishing_To_Docker_Hub.md
|
||||
- containers/Exercise_Dockerfile_Advanced.md
|
||||
-
|
||||
- containers/Naming_And_Inspecting.md
|
||||
- containers/Labels.md
|
||||
- containers/Start_And_Attach.md
|
||||
- containers/Getting_Inside.md
|
||||
- containers/Resource_Limits.md
|
||||
- # DAY 2
|
||||
- containers/Container_Networking_Basics.md
|
||||
- containers/Network_Drivers.md
|
||||
- containers/Container_Network_Model.md
|
||||
-
|
||||
- containers/Local_Development_Workflow.md
|
||||
- containers/Working_With_Volumes.md
|
||||
- containers/Compose_For_Dev_Stacks.md
|
||||
- containers/Exercise_Composefile.md
|
||||
-
|
||||
- containers/Installing_Docker.md
|
||||
- containers/Container_Engines.md
|
||||
- containers/Init_Systems.md
|
||||
- containers/Advanced_Dockerfiles.md
|
||||
-
|
||||
- containers/Application_Configuration.md
|
||||
- containers/Logging.md
|
||||
- containers/Orchestration_Overview.md
|
||||
-
|
||||
- shared/thankyou.md
|
||||
- containers/links.md
|
||||
#-
|
||||
#- containers/Docker_Machine.md
|
||||
#- containers/Ambassadors.md
|
||||
#- containers/Namespaces_Cgroups.md
|
||||
#- containers/Copy_On_Write.md
|
||||
#- containers/Containers_From_Scratch.md
|
||||
#- containers/Pods_Anatomy.md
|
||||
#- containers/Ecosystem.md
|
||||
@@ -352,7 +352,7 @@ We demonstrated *update* and *watch* semantics.
|
||||
|
||||
- That's where the actual logic of Kubernetes lives
|
||||
|
||||
- When we create a Deployment (e.g. with `kubectl create deployment web --image=nginx`),
|
||||
- When we create a Deployment (e.g. with `kubectl run web --image=nginx`),
|
||||
|
||||
- we create a Deployment object
|
||||
|
||||
|
||||
@@ -162,8 +162,6 @@ class: extra-details
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
|
||||
## What's BGP?
|
||||
|
||||
- BGP (Border Gateway Protocol) is the protocol used between internet routers
|
||||
@@ -222,22 +220,6 @@ class: extra-details
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
|
||||
## Checking the CNI configuration
|
||||
|
||||
- By default, kubelet gets the CNI configuration from `/etc/cni/net.d`
|
||||
|
||||
.exercise[
|
||||
|
||||
- Check the content of `/etc/cni/net.d`
|
||||
|
||||
]
|
||||
|
||||
(On most machines, at this point, `/etc/cni/net.d` doesn't even exist).)
|
||||
|
||||
---
|
||||
|
||||
## Our control plane
|
||||
|
||||
- We will use a Compose file to start the control plane
|
||||
@@ -376,26 +358,6 @@ Note: the DaemonSet won't create any pods (yet) since there are no nodes (yet).
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
|
||||
## Checking the CNI configuration
|
||||
|
||||
- At this point, kuberouter should have installed its CNI configuration
|
||||
|
||||
(in `/etc/cni/net.d`)
|
||||
|
||||
.exercise[
|
||||
|
||||
- Check the content of `/etc/cni/net.d`
|
||||
|
||||
]
|
||||
|
||||
- There should be a file created by kuberouter
|
||||
|
||||
- The file should contain the node's podCIDR
|
||||
|
||||
---
|
||||
|
||||
## Setting up a test
|
||||
|
||||
- Let's create a Deployment and expose it with a Service
|
||||
@@ -443,8 +405,6 @@ This shows that we are using IPVS (vs. iptables, which picked random endpoints).
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
|
||||
## Troubleshooting
|
||||
|
||||
- What if we need to check that everything is working properly?
|
||||
@@ -468,8 +428,6 @@ We should see the local pod CIDR connected to `kube-bridge`, and the other nodes
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
|
||||
## More troubleshooting
|
||||
|
||||
- We can also look at the output of the kube-router pods
|
||||
@@ -486,8 +444,6 @@ class: extra-details
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
|
||||
## Trying `kubectl logs` / `kubectl exec`
|
||||
|
||||
.exercise[
|
||||
@@ -513,8 +469,6 @@ What does that mean?
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
|
||||
## Internal name resolution
|
||||
|
||||
- To execute these commands, the API server needs to connect to kubelet
|
||||
@@ -531,8 +485,6 @@ class: extra-details
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
|
||||
## Another way to check the logs
|
||||
|
||||
- We can also ask the logs directly to the container engine
|
||||
@@ -574,3 +526,163 @@ done
|
||||
- This could be useful for embedded platforms with very limited resources
|
||||
|
||||
(or lab environments for learning purposes)
|
||||
|
||||
---
|
||||
|
||||
# Interconnecting clusters
|
||||
|
||||
- We assigned different Cluster CIDRs to each cluster
|
||||
|
||||
- This allows us to connect our clusters together
|
||||
|
||||
- We will leverage kube-router BGP abilities for that
|
||||
|
||||
- We will *peer* each kube-router instance with a *route reflector*
|
||||
|
||||
- As a result, we will be able to ping each other's pods
|
||||
|
||||
---
|
||||
|
||||
## Disclaimers
|
||||
|
||||
- There are many methods to interconnect clusters
|
||||
|
||||
- Depending on your network implementation, you will use different methods
|
||||
|
||||
- The method shown here only works for nodes with direct layer 2 connection
|
||||
|
||||
- We will often need to use tunnels or other network techniques
|
||||
|
||||
---
|
||||
|
||||
## The plan
|
||||
|
||||
- Someone will start the *route reflector*
|
||||
|
||||
(typically, that will be the person presenting these slides!)
|
||||
|
||||
- We will update our kube-router configuration
|
||||
|
||||
- We will add a *peering* with the route reflector
|
||||
|
||||
(instructing kube-router to connect to it and exchange route information)
|
||||
|
||||
- We should see the routes to other clusters on our nodes
|
||||
|
||||
(in the output of e.g. `route -n` or `ip route show`)
|
||||
|
||||
- We should be able to ping pods of other nodes
|
||||
|
||||
---
|
||||
|
||||
## Starting the route reflector
|
||||
|
||||
- Only do this slide if you are doing this on your own
|
||||
|
||||
- There is a Compose file in the `compose/frr-route-reflector` directory
|
||||
|
||||
- Before continuing, make sure that you have the IP address of the route reflector
|
||||
|
||||
---
|
||||
|
||||
## Configuring kube-router
|
||||
|
||||
- This can be done in two ways:
|
||||
|
||||
- with command-line flags to the `kube-router` process
|
||||
|
||||
- with annotations to Node objects
|
||||
|
||||
- We will use the command-line flags
|
||||
|
||||
(because it will automatically propagate to all nodes)
|
||||
|
||||
.footnote[Note: with Calico, this is achieved by creating a BGPPeer CRD.]
|
||||
|
||||
---
|
||||
|
||||
## Updating kube-router configuration
|
||||
|
||||
- We need to pass two command-line flags to the kube-router process
|
||||
|
||||
.exercise[
|
||||
|
||||
- Edit the `kuberouter.yaml` file
|
||||
|
||||
- Add the following flags to the kube-router arguments:
|
||||
```
|
||||
- "--peer-router-ips=`X.X.X.X`"
|
||||
- "--peer-router-asns=64512"
|
||||
```
|
||||
(Replace `X.X.X.X` with the route reflector address)
|
||||
|
||||
- Update the DaemonSet definition:
|
||||
```bash
|
||||
kubectl apply -f kuberouter.yaml
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
---
|
||||
|
||||
## Restarting kube-router
|
||||
|
||||
- The DaemonSet will not update the pods automatically
|
||||
|
||||
(it is using the default `updateStrategy`, which is `OnDelete`)
|
||||
|
||||
- We will therefore delete the pods
|
||||
|
||||
(they will be recreated with the updated definition)
|
||||
|
||||
.exercise[
|
||||
|
||||
- Delete all the kube-router pods:
|
||||
```bash
|
||||
kubectl delete pods -n kube-system -l k8s-app=kube-router
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
Note: the other `updateStrategy` for a DaemonSet is RollingUpdate.
|
||||
<br/>
|
||||
For critical services, we might want to precisely control the update process.
|
||||
|
||||
---
|
||||
|
||||
## Checking peering status
|
||||
|
||||
- We can see informative messages in the output of kube-router:
|
||||
```
|
||||
time="2019-04-07T15:53:56Z" level=info msg="Peer Up"
|
||||
Key=X.X.X.X State=BGP_FSM_OPENCONFIRM Topic=Peer
|
||||
```
|
||||
|
||||
- We should see the routes of the other clusters show up
|
||||
|
||||
- For debugging purposes, the reflector also exports a route to 1.0.0.2/32
|
||||
|
||||
- That route will show up like this:
|
||||
```
|
||||
1.0.0.2 172.31.X.Y 255.255.255.255 UGH 0 0 0 eth0
|
||||
```
|
||||
|
||||
- We should be able to ping the pods of other clusters!
|
||||
|
||||
---
|
||||
|
||||
## If we wanted to do more ...
|
||||
|
||||
- kube-router can also export ClusterIP addresses
|
||||
|
||||
(by adding the flag `--advertise-cluster-ip`)
|
||||
|
||||
- They are exported individually (as /32)
|
||||
|
||||
- This would allow us to easily access other clusters' services
|
||||
|
||||
(without having to resolve the individual addresses of pods)
|
||||
|
||||
- Even better if it's combined with DNS integration
|
||||
|
||||
(to facilitate name → ClusterIP resolution)
|
||||
|
||||
@@ -71,7 +71,7 @@
|
||||
|
||||
(straightforward on CPU; more complex on other metrics)
|
||||
|
||||
- Resource management and scheduling
|
||||
- Ressource management and scheduling
|
||||
|
||||
(reserve CPU/RAM for containers; placement constraints)
|
||||
|
||||
|
||||
@@ -5,63 +5,63 @@ They say, "a picture is worth one thousand words."
|
||||
The following 19 slides show what really happens when we run:
|
||||
|
||||
```bash
|
||||
kubectl create deployment web --image=nginx
|
||||
kubectl run web --image=nginx --replicas=3
|
||||
```
|
||||
|
||||
---
|
||||
class: pic
|
||||
|
||||
|
||||
---
|
||||
class: pic
|
||||
|
||||
|
||||
---
|
||||
class: pic
|
||||
|
||||
|
||||
---
|
||||
class: pic
|
||||
|
||||
|
||||
---
|
||||
class: pic
|
||||
|
||||
|
||||
---
|
||||
class: pic
|
||||
|
||||
|
||||
---
|
||||
class: pic
|
||||
|
||||
|
||||
---
|
||||
class: pic
|
||||
|
||||
|
||||
---
|
||||
class: pic
|
||||
|
||||
|
||||
---
|
||||
class: pic
|
||||
|
||||
|
||||
---
|
||||
class: pic
|
||||
|
||||
|
||||
---
|
||||
class: pic
|
||||
|
||||
|
||||
---
|
||||
class: pic
|
||||
|
||||
|
||||
---
|
||||
class: pic
|
||||
|
||||
|
||||
---
|
||||
class: pic
|
||||
|
||||
|
||||
---
|
||||
class: pic
|
||||
|
||||
|
||||
---
|
||||
class: pic
|
||||
|
||||
|
||||
---
|
||||
class: pic
|
||||
|
||||
|
||||
---
|
||||
class: pic
|
||||
|
||||
|
||||
|
||||
@@ -6,7 +6,7 @@
|
||||
|
||||
- Our goal is to build a minimal cluster allowing us to:
|
||||
|
||||
- create a Deployment (with `kubectl create deployment`)
|
||||
- create a Deployment (with `kubectl run` or `kubectl create deployment`)
|
||||
- expose it with a Service
|
||||
- connect to that service
|
||||
|
||||
|
||||
@@ -172,7 +172,7 @@ Note: we don't need to specify `--validate=false` here.
|
||||
|
||||
## Advantage of YAML
|
||||
|
||||
- Using YAML (instead of `kubectl create <kind>`) allows to be *declarative*
|
||||
- Using YAML (instead of `kubectl run`/`create`/etc.) allows to be *declarative*
|
||||
|
||||
- The YAML describes the desired state of our cluster and applications
|
||||
|
||||
@@ -194,7 +194,7 @@ Note: we don't need to specify `--validate=false` here.
|
||||
|
||||
## YAML in practice
|
||||
|
||||
- Get started with `kubectl create deployment` and `kubectl expose`
|
||||
- Get started with `kubectl run`/`create`/`expose`/etc.
|
||||
|
||||
- Dump the YAML with `kubectl get -o yaml`
|
||||
|
||||
|
||||
@@ -1,31 +0,0 @@
|
||||
# Exercise — ConfigMaps
|
||||
|
||||
- In this exercise, we will use a ConfigMap to store static assets
|
||||
|
||||
- While there are some circumstances where this can be useful ...
|
||||
|
||||
- ... It is generally **not** a good idea!
|
||||
|
||||
- Once you've read that warning, check the next slide for instructions :)
|
||||
|
||||
---
|
||||
|
||||
## Exercise — ConfigMaps
|
||||
|
||||
This will use the wordsmith app.
|
||||
|
||||
We want to store the static files (served by `web`) in a ConfigMap.
|
||||
|
||||
1. Transform the `static` directory into a ConfigMap.
|
||||
|
||||
(https://github.com/jpetazzo/wordsmith/tree/master/web/static)
|
||||
|
||||
2. Find out where that `static` directory is located in `web`.
|
||||
|
||||
(for instance, by using `kubectl exec` to investigate)
|
||||
|
||||
3. Update the definition of the `web` Deployment to use the ConfigMap.
|
||||
|
||||
(note: fonts and images will be broken; that's OK)
|
||||
|
||||
4. Make a minor change in the ConfigMap (e.g. change the text color)
|
||||
@@ -1,63 +0,0 @@
|
||||
# Exercise — Helm charts
|
||||
|
||||
Let's write a Helm chart for wordsmith!
|
||||
|
||||
We will need the YAML manifests that we wrote earlier.
|
||||
|
||||
Level 1: create a chart to deploy wordsmith.
|
||||
|
||||
Level 2: make it so that the number of replicas can be set with `--set replicas=X`.
|
||||
|
||||
Level 3: change the colors of the lego bricks.
|
||||
|
||||
(For level 3, fork the repository and use ctr.run to build images.)
|
||||
|
||||
See next slide if you need hints!
|
||||
|
||||
---
|
||||
|
||||
## Hints
|
||||
|
||||
*Scroll one slide at a time to see hints.*
|
||||
|
||||
--
|
||||
|
||||
Use `helm create` to create a new chart.
|
||||
|
||||
--
|
||||
|
||||
Delete the content of the `templates` directory and put your YAML instead.
|
||||
|
||||
--
|
||||
|
||||
Install the resulting chart. Voilà!
|
||||
|
||||
--
|
||||
|
||||
Use `{{ .Values.replicas }}` in the YAML manifest for `words`.
|
||||
|
||||
--
|
||||
|
||||
Also add `replicas: 5` to `values.yaml` to provide a default value.
|
||||
|
||||
---
|
||||
|
||||
## Changing the color
|
||||
|
||||
- Fork the repository
|
||||
|
||||
- Make sure that your fork has valid Dockerfiles
|
||||
|
||||
(or identify a branch that has valid Dockerfiles)
|
||||
|
||||
- Use the following images:
|
||||
|
||||
ctr.run/yourgithubusername/wordsmith/db:branchname
|
||||
|
||||
(replace db with web and words for the other components)
|
||||
|
||||
- Change the images and/or CSS in `web/static`
|
||||
|
||||
- Commit, push, trigger a rolling update
|
||||
|
||||
(`imagePullPolicy` should be `Always`, which is the default)
|
||||
@@ -1,39 +0,0 @@
|
||||
# Exercise — deploying on Kubernetes
|
||||
|
||||
Let's deploy the wordsmith app on Kubernetes!
|
||||
|
||||
As a reminder, we have the following components:
|
||||
|
||||
| Name | Image | Port |
|
||||
|-------|---------------------------------|------|
|
||||
| db | jpetazzo/wordsmith-db:latest | 5432 |
|
||||
| web | jpetazzo/wordsmith-web:latest | 80 |
|
||||
| words | jpetazzo/wordsmith-words:latest | 8080 |
|
||||
|
||||
We need `web` to be available from outside the cluster.
|
||||
|
||||
See next slide if you need hints!
|
||||
|
||||
---
|
||||
|
||||
## Hints
|
||||
|
||||
*Scroll one slide at a time to see hints.*
|
||||
|
||||
--
|
||||
|
||||
- For each component, we need to create a deployment and a service
|
||||
|
||||
--
|
||||
|
||||
- Deployments can be created with `kubectl create deployment`
|
||||
|
||||
--
|
||||
|
||||
- Services can be created with `kubectl expose`
|
||||
|
||||
--
|
||||
|
||||
- Public services (like `web`) need to use a special type
|
||||
|
||||
(e.g. `NodePort`)
|
||||
@@ -1,77 +0,0 @@
|
||||
# Exercise — writing YAML
|
||||
|
||||
Let's write YAML manifests for the wordsmith app!
|
||||
|
||||
It can be a single YAML file or multiple files in a directory.
|
||||
|
||||
See next slides for testing instructions and hints.
|
||||
|
||||
---
|
||||
|
||||
## How to test our YAML
|
||||
|
||||
If `XYZ` is that YAML file (or directory with YAML files), we should be able to:
|
||||
|
||||
1. Create a new namespace, e.g. `foo123`
|
||||
|
||||
2. Deploy wordsmith with a single command
|
||||
|
||||
(e.g. `kubectl apply --namespace foo123 -f XYZ`)
|
||||
|
||||
3. Find out the connection information for `web`
|
||||
|
||||
(e.g. `kubectl get service web --namespace`)
|
||||
|
||||
4. Connect to it and see the wordsmith app
|
||||
|
||||
See next slide for hints.
|
||||
|
||||
---
|
||||
|
||||
## Strategies
|
||||
|
||||
There are at least three methods to write our YAML.
|
||||
|
||||
1. Dump the YAML of existing wordsmith deployments and services.
|
||||
|
||||
(we can dump YAML with `kubectl get -o yaml ...`)
|
||||
|
||||
2. Adapt existing YAML (from the docs or dockercoins).
|
||||
|
||||
(for reference, kubercoins is at https://github.com/jpetazzo/kubercoins)
|
||||
|
||||
3. Write it entirely from scratch.
|
||||
|
||||
See next slide for more hints.
|
||||
|
||||
---
|
||||
|
||||
## Adapting YAML
|
||||
|
||||
*Scroll one slide at a time to see hints.*
|
||||
|
||||
--
|
||||
|
||||
One option is to start with the YAML from kubercoins.
|
||||
|
||||
(see https://github.com/jpetazzo/kubercoins)
|
||||
|
||||
--
|
||||
|
||||
Adapt the YAML of a deployment (e.g. worker) to run "web".
|
||||
|
||||
--
|
||||
|
||||
We need to change the name, labels, selectors, and image.
|
||||
|
||||
--
|
||||
|
||||
Then adapt the YAML of a service (e.g. webui).
|
||||
|
||||
--
|
||||
|
||||
We need to change the name, labels, selectors, possibly port number.
|
||||
|
||||
--
|
||||
|
||||
Repeat for the other components.
|
||||
@@ -1,157 +0,0 @@
|
||||
# Interconnecting clusters
|
||||
|
||||
- We assigned different Cluster CIDRs to each cluster
|
||||
|
||||
- This allows us to connect our clusters together
|
||||
|
||||
- We will leverage kube-router BGP abilities for that
|
||||
|
||||
- We will *peer* each kube-router instance with a *route reflector*
|
||||
|
||||
- As a result, we will be able to ping each other's pods
|
||||
|
||||
---
|
||||
|
||||
## Disclaimers
|
||||
|
||||
- There are many methods to interconnect clusters
|
||||
|
||||
- Depending on your network implementation, you will use different methods
|
||||
|
||||
- The method shown here only works for nodes with direct layer 2 connection
|
||||
|
||||
- We will often need to use tunnels or other network techniques
|
||||
|
||||
---
|
||||
|
||||
## The plan
|
||||
|
||||
- Someone will start the *route reflector*
|
||||
|
||||
(typically, that will be the person presenting these slides!)
|
||||
|
||||
- We will update our kube-router configuration
|
||||
|
||||
- We will add a *peering* with the route reflector
|
||||
|
||||
(instructing kube-router to connect to it and exchange route information)
|
||||
|
||||
- We should see the routes to other clusters on our nodes
|
||||
|
||||
(in the output of e.g. `route -n` or `ip route show`)
|
||||
|
||||
- We should be able to ping pods of other nodes
|
||||
|
||||
---
|
||||
|
||||
## Starting the route reflector
|
||||
|
||||
- Only do this slide if you are doing this on your own
|
||||
|
||||
- There is a Compose file in the `compose/frr-route-reflector` directory
|
||||
|
||||
- Before continuing, make sure that you have the IP address of the route reflector
|
||||
|
||||
---
|
||||
|
||||
## Configuring kube-router
|
||||
|
||||
- This can be done in two ways:
|
||||
|
||||
- with command-line flags to the `kube-router` process
|
||||
|
||||
- with annotations to Node objects
|
||||
|
||||
- We will use the command-line flags
|
||||
|
||||
(because it will automatically propagate to all nodes)
|
||||
|
||||
.footnote[Note: with Calico, this is achieved by creating a BGPPeer CRD.]
|
||||
|
||||
---
|
||||
|
||||
## Updating kube-router configuration
|
||||
|
||||
- We need to pass two command-line flags to the kube-router process
|
||||
|
||||
.exercise[
|
||||
|
||||
- Edit the `kuberouter.yaml` file
|
||||
|
||||
- Add the following flags to the kube-router arguments:
|
||||
```
|
||||
- "--peer-router-ips=`X.X.X.X`"
|
||||
- "--peer-router-asns=64512"
|
||||
```
|
||||
(Replace `X.X.X.X` with the route reflector address)
|
||||
|
||||
- Update the DaemonSet definition:
|
||||
```bash
|
||||
kubectl apply -f kuberouter.yaml
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
---
|
||||
|
||||
## Restarting kube-router
|
||||
|
||||
- The DaemonSet will not update the pods automatically
|
||||
|
||||
(it is using the default `updateStrategy`, which is `OnDelete`)
|
||||
|
||||
- We will therefore delete the pods
|
||||
|
||||
(they will be recreated with the updated definition)
|
||||
|
||||
.exercise[
|
||||
|
||||
- Delete all the kube-router pods:
|
||||
```bash
|
||||
kubectl delete pods -n kube-system -l k8s-app=kube-router
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
Note: the other `updateStrategy` for a DaemonSet is RollingUpdate.
|
||||
<br/>
|
||||
For critical services, we might want to precisely control the update process.
|
||||
|
||||
---
|
||||
|
||||
## Checking peering status
|
||||
|
||||
- We can see informative messages in the output of kube-router:
|
||||
```
|
||||
time="2019-04-07T15:53:56Z" level=info msg="Peer Up"
|
||||
Key=X.X.X.X State=BGP_FSM_OPENCONFIRM Topic=Peer
|
||||
```
|
||||
|
||||
- We should see the routes of the other clusters show up
|
||||
|
||||
- For debugging purposes, the reflector also exports a route to 1.0.0.2/32
|
||||
|
||||
- That route will show up like this:
|
||||
```
|
||||
1.0.0.2 172.31.X.Y 255.255.255.255 UGH 0 0 0 eth0
|
||||
```
|
||||
|
||||
- We should be able to ping the pods of other clusters!
|
||||
|
||||
---
|
||||
|
||||
## If we wanted to do more ...
|
||||
|
||||
- kube-router can also export ClusterIP addresses
|
||||
|
||||
(by adding the flag `--advertise-cluster-ip`)
|
||||
|
||||
- They are exported individually (as /32)
|
||||
|
||||
- This would allow us to easily access other clusters' services
|
||||
|
||||
(without having to resolve the individual addresses of pods)
|
||||
|
||||
- Even better if it's combined with DNS integration
|
||||
|
||||
(to facilitate name → ClusterIP resolution)
|
||||
@@ -151,9 +151,9 @@
|
||||
|
||||
## Creating a deployment for our HTTP server
|
||||
|
||||
- We will create a deployment with `kubectl create deployment`
|
||||
- We *could* do `kubectl run httpenv --image=jpetazzo/httpenv` ...
|
||||
|
||||
- Then we will scale it with `kubectl scale`
|
||||
- But since `kubectl run` is being deprecated, let's see how to use `kubectl create` instead
|
||||
|
||||
.exercise[
|
||||
|
||||
|
||||
@@ -10,47 +10,14 @@
|
||||
|
||||
- In that container in the pod, we are going to run a simple `ping` command
|
||||
|
||||
--
|
||||
|
||||
- Sounds simple enough, right?
|
||||
|
||||
--
|
||||
|
||||
- Except ... that the `kubectl run` command changed in Kubernetes 1.18!
|
||||
|
||||
- We'll explain what has changed, and why
|
||||
|
||||
---
|
||||
|
||||
## Choose your own adventure
|
||||
|
||||
- First, let's check which version of Kubernetes we're running
|
||||
|
||||
.exercise[
|
||||
|
||||
- Check our API server version:
|
||||
```bash
|
||||
kubectl version
|
||||
```
|
||||
|
||||
- Look at the **Server Version** in the second part of the output
|
||||
|
||||
]
|
||||
|
||||
- In the following slides, we will talk about 1.17- or 1.18+
|
||||
|
||||
(to indicate "up to Kubernetes 1.17" and "from Kubernetes 1.18")
|
||||
- Then we are going to start additional copies of the pod
|
||||
|
||||
---
|
||||
|
||||
## Starting a simple pod with `kubectl run`
|
||||
|
||||
- `kubectl run` is convenient to start a single pod
|
||||
|
||||
- We need to specify at least a *name* and the image we want to use
|
||||
|
||||
- Optionally, we can specify the command to run in the pod
|
||||
|
||||
.exercise[
|
||||
|
||||
- Let's ping the address of `localhost`, the loopback interface:
|
||||
@@ -58,289 +25,90 @@
|
||||
kubectl run pingpong --image alpine ping 127.0.0.1
|
||||
```
|
||||
|
||||
<!-- ```hide kubectl wait pod --selector=run=pingpong --for condition=ready``` -->
|
||||
<!-- ```hide kubectl wait deploy/pingpong --for condition=available``` -->
|
||||
|
||||
]
|
||||
|
||||
---
|
||||
--
|
||||
|
||||
## What do we see?
|
||||
|
||||
- In Kubernetes 1.18+, the output tells us that a Pod is created:
|
||||
```
|
||||
pod/pingpong created
|
||||
```
|
||||
|
||||
- In Kubernetes 1.17-, the output is much more verbose:
|
||||
```
|
||||
kubectl run --generator=deployment/apps.v1 is DEPRECATED
|
||||
and will be removed in a future version. Use kubectl run
|
||||
--generator=run-pod/v1 or kubectl create instead.
|
||||
deployment.apps/pingpong created
|
||||
```
|
||||
|
||||
- There is a deprecation warning ...
|
||||
|
||||
- ... And a Deployment was created instead of a Pod
|
||||
|
||||
🤔 What does that mean?
|
||||
(Starting with Kubernetes 1.12, we get a message telling us that
|
||||
`kubectl run` is deprecated. Let's ignore it for now.)
|
||||
|
||||
---
|
||||
|
||||
## Show me all you got!
|
||||
## Behind the scenes of `kubectl run`
|
||||
|
||||
- What resources were created by `kubectl run`?
|
||||
- Let's look at the resources that were created by `kubectl run`
|
||||
|
||||
.exercise[
|
||||
|
||||
- Let's ask Kubernetes to show us *all* the resources:
|
||||
- List most resource types:
|
||||
```bash
|
||||
kubectl get all
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
Note: `kubectl get all` is a lie. It doesn't show everything.
|
||||
|
||||
(But it shows a lot of "usual suspects", i.e. commonly used resources.)
|
||||
|
||||
---
|
||||
|
||||
## The situation with Kubernetes 1.18+
|
||||
|
||||
```
|
||||
NAME READY STATUS RESTARTS AGE
|
||||
pod/pingpong 1/1 Running 0 9s
|
||||
|
||||
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
|
||||
service/kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 3h30m
|
||||
```
|
||||
|
||||
We wanted a pod, we got a pod, named `pingpong`. Great!
|
||||
|
||||
(We can ignore `service/kubernetes`, it was already there before.)
|
||||
|
||||
---
|
||||
|
||||
## The situation with Kubernetes 1.17-
|
||||
|
||||
```
|
||||
NAME READY STATUS RESTARTS AGE
|
||||
pod/pingpong-6ccbc77f68-kmgfn 1/1 Running 0 11s
|
||||
|
||||
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
|
||||
service/kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 3h45
|
||||
|
||||
NAME READY UP-TO-DATE AVAILABLE AGE
|
||||
deployment.apps/pingpong 1/1 1 1 11s
|
||||
|
||||
NAME DESIRED CURRENT READY AGE
|
||||
replicaset.apps/pingpong-6ccbc77f68 1 1 1 11s
|
||||
```
|
||||
|
||||
Our pod is not named `pingpong`, but `pingpong-xxxxxxxxxxx-yyyyy`.
|
||||
|
||||
We have a Deployment named `pingpong`, and an extra Replica Set, too. What's going on?
|
||||
|
||||
---
|
||||
|
||||
## From Deployment to Pod
|
||||
|
||||
We have the following resources:
|
||||
|
||||
- `deployment.apps/pingpong`
|
||||
|
||||
This is the Deployment that we just created.
|
||||
|
||||
- `replicaset.apps/pingpong-xxxxxxxxxx`
|
||||
|
||||
This is a Replica Set created by this Deployment.
|
||||
|
||||
- `pod/pingpong-xxxxxxxxxx-yyyyy`
|
||||
|
||||
This is a *pod* created by the Replica Set.
|
||||
|
||||
Let's explain what these things are.
|
||||
|
||||
---
|
||||
|
||||
## Pod
|
||||
|
||||
- Can have one or multiple containers
|
||||
|
||||
- Runs on a single node
|
||||
|
||||
(Pod cannot "straddle" multiple nodes)
|
||||
|
||||
- Pods cannot be moved
|
||||
|
||||
(e.g. in case of node outage)
|
||||
|
||||
- Pods cannot be scaled
|
||||
|
||||
(except by manually creating more Pods)
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
|
||||
## Pod details
|
||||
|
||||
- A Pod is not a process; it's an environment for containers
|
||||
|
||||
- it cannot be "restarted"
|
||||
|
||||
- it cannot "crash"
|
||||
|
||||
- The containers in a Pod can crash
|
||||
|
||||
- They may or may not get restarted
|
||||
|
||||
(depending on Pod's restart policy)
|
||||
|
||||
- If all containers exit successfully, the Pod ends in "Succeeded" phase
|
||||
|
||||
- If some containers fail and don't get restarted, the Pod ends in "Failed" phase
|
||||
|
||||
---
|
||||
|
||||
## Replica Set
|
||||
|
||||
- Set of identical (replicated) Pods
|
||||
|
||||
- Defined by a pod template + number of desired replicas
|
||||
|
||||
- If there are not enough Pods, the Replica Set creates more
|
||||
|
||||
(e.g. in case of node outage; or simply when scaling up)
|
||||
|
||||
- If there are too many Pods, the Replica Set deletes some
|
||||
|
||||
(e.g. if a node was disconnected and comes back; or when scaling down)
|
||||
|
||||
- We can scale up/down a Replica Set
|
||||
|
||||
- we update the manifest of the Replica Set
|
||||
|
||||
- as a consequence, the Replica Set controller creates/deletes Pods
|
||||
|
||||
---
|
||||
|
||||
## Deployment
|
||||
|
||||
- Replica Sets control *identical* Pods
|
||||
|
||||
- Deployments are used to roll out different Pods
|
||||
|
||||
(different image, command, environment variables, ...)
|
||||
|
||||
- When we update a Deployment with a new Pod definition:
|
||||
|
||||
- a new Replica Set is created with the new Pod definition
|
||||
|
||||
- that new Replica Set is progressively scaled up
|
||||
|
||||
- meanwhile, the old Replica Set(s) is(are) scaled down
|
||||
|
||||
- This is a *rolling update*, minimizing application downtime
|
||||
|
||||
- When we scale up/down a Deployment, it scales up/down its Replica Set
|
||||
|
||||
---
|
||||
|
||||
## `kubectl run` through the ages
|
||||
|
||||
- When we want to run an app on Kubernetes, we *generally* want a Deployment
|
||||
|
||||
- Up to Kubernetes 1.17, `kubectl run` created a Deployment
|
||||
|
||||
- it could also create other things, by using special flags
|
||||
|
||||
- this was powerful, but potentially confusing
|
||||
|
||||
- creating a single Pod was done with `kubectl run --restart=Never`
|
||||
|
||||
- other resources could also be created with `kubectl create ...`
|
||||
|
||||
- From Kubernetes 1.18, `kubectl run` creates a Pod
|
||||
|
||||
- other kinds of resources can still be created with `kubectl create`
|
||||
|
||||
---
|
||||
|
||||
## Creating a Deployment the proper way
|
||||
|
||||
- Let's destroy that `pingpong` app that we created
|
||||
|
||||
- Then we will use `kubectl create deployment` to re-create it
|
||||
|
||||
.exercise[
|
||||
|
||||
- On Kubernetes 1.18+, delete the Pod named `pingpong`:
|
||||
```bash
|
||||
kubectl delete pod pingpong
|
||||
```
|
||||
|
||||
- On Kubernetes 1.17-, delete the Deployment named `pingpong`:
|
||||
```bash
|
||||
kubectl delete deployment pingpong
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
---
|
||||
|
||||
## Running `ping` in a Deployment
|
||||
|
||||
<!-- ##VERSION## -->
|
||||
|
||||
- When using `kubectl create deployment`, we cannot indicate the command to execute
|
||||
|
||||
(at least, not in Kubernetes 1.18)
|
||||
|
||||
- We can:
|
||||
|
||||
- write a custom YAML manifest for our Deployment
|
||||
|
||||
--
|
||||
|
||||
- (yeah right ... too soon!)
|
||||
We should see the following things:
|
||||
- `deployment.apps/pingpong` (the *deployment* that we just created)
|
||||
- `replicaset.apps/pingpong-xxxxxxxxxx` (a *replica set* created by the deployment)
|
||||
- `pod/pingpong-xxxxxxxxxx-yyyyy` (a *pod* created by the replica set)
|
||||
|
||||
--
|
||||
|
||||
- use an image that has the command to execute baked in
|
||||
|
||||
- (much easier!)
|
||||
|
||||
--
|
||||
|
||||
- We will use the image `jpetazzo/ping`
|
||||
|
||||
(it has a default command of `ping 127.0.0.1`)
|
||||
Note: as of 1.10.1, resource types are displayed in more detail.
|
||||
|
||||
---
|
||||
|
||||
## Creating a Deployment running `ping`
|
||||
## What are these different things?
|
||||
|
||||
- Let's create a Deployment named `pingpong`
|
||||
- A *deployment* is a high-level construct
|
||||
|
||||
- It will use the image `jpetazzo/ping`
|
||||
- allows scaling, rolling updates, rollbacks
|
||||
|
||||
.exercise[
|
||||
- multiple deployments can be used together to implement a
|
||||
[canary deployment](https://kubernetes.io/docs/concepts/cluster-administration/manage-deployment/#canary-deployments)
|
||||
|
||||
- Create the Deployment:
|
||||
```bash
|
||||
kubectl create deployment pingpong --image=jpetazzo/ping
|
||||
```
|
||||
- delegates pods management to *replica sets*
|
||||
|
||||
- Check the resources that were created:
|
||||
```bash
|
||||
kubectl get all
|
||||
```
|
||||
- A *replica set* is a low-level construct
|
||||
|
||||
<!-- ```hide kubectl wait pod --selector=run=pingpong --for condition=ready ``` -->
|
||||
- makes sure that a given number of identical pods are running
|
||||
|
||||
]
|
||||
- allows scaling
|
||||
|
||||
- rarely used directly
|
||||
|
||||
- A *replication controller* is the (deprecated) predecessor of a replica set
|
||||
|
||||
---
|
||||
|
||||
## Our `pingpong` deployment
|
||||
|
||||
- `kubectl run` created a *deployment*, `deployment.apps/pingpong`
|
||||
|
||||
```
|
||||
NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE
|
||||
deployment.apps/pingpong 1 1 1 1 10m
|
||||
```
|
||||
|
||||
- That deployment created a *replica set*, `replicaset.apps/pingpong-xxxxxxxxxx`
|
||||
|
||||
```
|
||||
NAME DESIRED CURRENT READY AGE
|
||||
replicaset.apps/pingpong-7c8bbcd9bc 1 1 1 10m
|
||||
```
|
||||
|
||||
- That replica set created a *pod*, `pod/pingpong-xxxxxxxxxx-yyyyy`
|
||||
|
||||
```
|
||||
NAME READY STATUS RESTARTS AGE
|
||||
pod/pingpong-7c8bbcd9bc-6c9qz 1/1 Running 0 10m
|
||||
```
|
||||
|
||||
- We'll see later how these folks play together for:
|
||||
|
||||
- scaling, high availability, rolling updates
|
||||
|
||||
---
|
||||
|
||||
@@ -526,6 +294,132 @@ Let's leave `kubectl logs` running while we keep exploring.
|
||||
|
||||
---
|
||||
|
||||
|
||||
## What if we wanted something different?
|
||||
|
||||
- What if we wanted to start a "one-shot" container that *doesn't* get restarted?
|
||||
|
||||
- We could use `kubectl run --restart=OnFailure` or `kubectl run --restart=Never`
|
||||
|
||||
- These commands would create *jobs* or *pods* instead of *deployments*
|
||||
|
||||
- Under the hood, `kubectl run` invokes "generators" to create resource descriptions
|
||||
|
||||
- We could also write these resource descriptions ourselves (typically in YAML),
|
||||
<br/>and create them on the cluster with `kubectl apply -f` (discussed later)
|
||||
|
||||
- With `kubectl run --schedule=...`, we can also create *cronjobs*
|
||||
|
||||
---
|
||||
|
||||
## Scheduling periodic background work
|
||||
|
||||
- A Cron Job is a job that will be executed at specific intervals
|
||||
|
||||
(the name comes from the traditional cronjobs executed by the UNIX crond)
|
||||
|
||||
- It requires a *schedule*, represented as five space-separated fields:
|
||||
|
||||
- minute [0,59]
|
||||
- hour [0,23]
|
||||
- day of the month [1,31]
|
||||
- month of the year [1,12]
|
||||
- day of the week ([0,6] with 0=Sunday)
|
||||
|
||||
- `*` means "all valid values"; `/N` means "every N"
|
||||
|
||||
- Example: `*/3 * * * *` means "every three minutes"
|
||||
|
||||
---
|
||||
|
||||
## Creating a Cron Job
|
||||
|
||||
- Let's create a simple job to be executed every three minutes
|
||||
|
||||
- Cron Jobs need to terminate, otherwise they'd run forever
|
||||
|
||||
.exercise[
|
||||
|
||||
- Create the Cron Job:
|
||||
```bash
|
||||
kubectl run every3mins --schedule="*/3 * * * *" --restart=OnFailure \
|
||||
--image=alpine sleep 10
|
||||
```
|
||||
|
||||
- Check the resource that was created:
|
||||
```bash
|
||||
kubectl get cronjobs
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
---
|
||||
|
||||
## Cron Jobs in action
|
||||
|
||||
- At the specified schedule, the Cron Job will create a Job
|
||||
|
||||
- The Job will create a Pod
|
||||
|
||||
- The Job will make sure that the Pod completes
|
||||
|
||||
(re-creating another one if it fails, for instance if its node fails)
|
||||
|
||||
.exercise[
|
||||
|
||||
- Check the Jobs that are created:
|
||||
```bash
|
||||
kubectl get jobs
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
(It will take a few minutes before the first job is scheduled.)
|
||||
|
||||
---
|
||||
|
||||
|
||||
## What about that deprecation warning?
|
||||
|
||||
- As we can see from the previous slide, `kubectl run` can do many things
|
||||
|
||||
- The exact type of resource created is not obvious
|
||||
|
||||
- To make things more explicit, it is better to use `kubectl create`:
|
||||
|
||||
- `kubectl create deployment` to create a deployment
|
||||
|
||||
- `kubectl create job` to create a job
|
||||
|
||||
- `kubectl create cronjob` to run a job periodically
|
||||
<br/>(since Kubernetes 1.14)
|
||||
|
||||
- Eventually, `kubectl run` will be used only to start one-shot pods
|
||||
|
||||
(see https://github.com/kubernetes/kubernetes/pull/68132)
|
||||
|
||||
---
|
||||
|
||||
## Various ways of creating resources
|
||||
|
||||
- `kubectl run`
|
||||
|
||||
- easy way to get started
|
||||
- versatile
|
||||
|
||||
- `kubectl create <resource>`
|
||||
|
||||
- explicit, but lacks some features
|
||||
- can't create a CronJob before Kubernetes 1.14
|
||||
- can't pass command-line arguments to deployments
|
||||
|
||||
- `kubectl create -f foo.yaml` or `kubectl apply -f foo.yaml`
|
||||
|
||||
- all features are available
|
||||
- requires writing YAML
|
||||
|
||||
---
|
||||
|
||||
## Viewing logs of multiple pods
|
||||
|
||||
- When we specify a deployment name, only one single pod's logs are shown
|
||||
@@ -534,15 +428,13 @@ Let's leave `kubectl logs` running while we keep exploring.
|
||||
|
||||
- A selector is a logic expression using *labels*
|
||||
|
||||
- If we check the pods created by the deployment, they all have the label `app=pingpong`
|
||||
|
||||
(this is just a default label that gets added when using `kubectl create deployment`)
|
||||
- Conveniently, when you `kubectl run somename`, the associated objects have a `run=somename` label
|
||||
|
||||
.exercise[
|
||||
|
||||
- View the last line of log from all pods with the `app=pingpong` label:
|
||||
- View the last line of log from all pods with the `run=pingpong` label:
|
||||
```bash
|
||||
kubectl logs -l app=pingpong --tail 1
|
||||
kubectl logs -l run=pingpong --tail 1
|
||||
```
|
||||
|
||||
]
|
||||
@@ -557,7 +449,7 @@ Let's leave `kubectl logs` running while we keep exploring.
|
||||
|
||||
- Combine `-l` and `-f` flags:
|
||||
```bash
|
||||
kubectl logs -l app=pingpong --tail 1 -f
|
||||
kubectl logs -l run=pingpong --tail 1 -f
|
||||
```
|
||||
|
||||
<!--
|
||||
@@ -588,7 +480,7 @@ class: extra-details
|
||||
|
||||
- Stream the logs:
|
||||
```bash
|
||||
kubectl logs -l app=pingpong --tail 1 -f
|
||||
kubectl logs -l run=pingpong --tail 1 -f
|
||||
```
|
||||
|
||||
<!-- ```wait error:``` -->
|
||||
@@ -694,195 +586,3 @@ class: extra-details
|
||||
- This is a quick way to check connectivity
|
||||
|
||||
(if we can reach 1.1, we probably have internet access)
|
||||
|
||||
---
|
||||
|
||||
## Creating other kinds of resources
|
||||
|
||||
- Deployments are great for stateless web apps
|
||||
|
||||
(as well as workers that keep running forever)
|
||||
|
||||
- Jobs are great for "long" background work
|
||||
|
||||
("long" being at least minutes our hours)
|
||||
|
||||
- CronJobs are great to schedule Jobs at regular intervals
|
||||
|
||||
(just like the classic UNIX `cron` daemon with its `crontab` files)
|
||||
|
||||
- Pods are great for one-off execution that we don't care about
|
||||
|
||||
(because they don't get automatically restarted if something goes wrong)
|
||||
|
||||
---
|
||||
|
||||
## Creating a Job
|
||||
|
||||
- A Job will create a Pod
|
||||
|
||||
- If the Pod fails, the Job will create another one
|
||||
|
||||
- The Job will keep trying until:
|
||||
|
||||
- either a Pod succeeds,
|
||||
|
||||
- or we hit the *backoff limit* of the Job (default=6)
|
||||
|
||||
.exercise[
|
||||
|
||||
- Create a Job that has a 50% chance of success:
|
||||
```bash
|
||||
kubectl create job flipcoin --image=alpine -- sh -c 'exit $(($RANDOM%2))'
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
---
|
||||
|
||||
## Our Job in action
|
||||
|
||||
- Our Job will create a Pod named `flipcoin-xxxxx`
|
||||
|
||||
- If the Pod succeeds, the Job stops
|
||||
|
||||
- If the Pod fails, the Job creates another Pod
|
||||
|
||||
.exercise[
|
||||
|
||||
- Check the status of the Pod(s) created by the Job:
|
||||
```bash
|
||||
kubectl get pods --selector=job-name=flipcoin
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
|
||||
## More advanced jobs
|
||||
|
||||
- We can specify a number of "completions" (default=1)
|
||||
|
||||
- This indicates how many times the Job must be executed
|
||||
|
||||
- We can specify the "parallelism" (default=1)
|
||||
|
||||
- This indicates how many Pods should be running in parallel
|
||||
|
||||
- These options cannot be specified with `kubectl create job`
|
||||
|
||||
(we have to write our own YAML manifest to use them)
|
||||
|
||||
---
|
||||
|
||||
## Scheduling periodic background work
|
||||
|
||||
- A Cron Job is a Job that will be executed at specific intervals
|
||||
|
||||
(the name comes from the traditional cronjobs executed by the UNIX crond)
|
||||
|
||||
- It requires a *schedule*, represented as five space-separated fields:
|
||||
|
||||
- minute [0,59]
|
||||
- hour [0,23]
|
||||
- day of the month [1,31]
|
||||
- month of the year [1,12]
|
||||
- day of the week ([0,6] with 0=Sunday)
|
||||
|
||||
- `*` means "all valid values"; `/N` means "every N"
|
||||
|
||||
- Example: `*/3 * * * *` means "every three minutes"
|
||||
|
||||
---
|
||||
|
||||
## Creating a Cron Job
|
||||
|
||||
- Let's create a simple job to be executed every three minutes
|
||||
|
||||
- Careful: make sure that the job terminates!
|
||||
|
||||
(The Cron Job will not hold if a previous job is still running)
|
||||
|
||||
.exercise[
|
||||
|
||||
- Create the Cron Job:
|
||||
```bash
|
||||
kubectl create cronjob every3mins --schedule="*/3 * * * *" \
|
||||
--image=alpine -- sleep 10
|
||||
```
|
||||
|
||||
- Check the resource that was created:
|
||||
```bash
|
||||
kubectl get cronjobs
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
---
|
||||
|
||||
## Cron Jobs in action
|
||||
|
||||
- At the specified schedule, the Cron Job will create a Job
|
||||
|
||||
- The Job will create a Pod
|
||||
|
||||
- The Job will make sure that the Pod completes
|
||||
|
||||
(re-creating another one if it fails, for instance if its node fails)
|
||||
|
||||
.exercise[
|
||||
|
||||
- Check the Jobs that are created:
|
||||
```bash
|
||||
kubectl get jobs
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
(It will take a few minutes before the first job is scheduled.)
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
|
||||
## What about `kubectl run` before v1.18?
|
||||
|
||||
- Creating a Deployment:
|
||||
|
||||
`kubectl run`
|
||||
|
||||
- Creating a Pod:
|
||||
|
||||
`kubectl run --restart=Never`
|
||||
|
||||
- Creating a Job:
|
||||
|
||||
`kubectl run --restart=OnFailure`
|
||||
|
||||
- Creating a Cron Job:
|
||||
|
||||
`kubectl run --restart=OnFailure --schedule=...`
|
||||
|
||||
*Avoid using these forms, as they are deprecated since Kubernetes 1.18!*
|
||||
|
||||
---
|
||||
|
||||
## Beyond `kubectl create`
|
||||
|
||||
- As hinted earlier, `kubectl create` doesn't always expose all options
|
||||
|
||||
- can't express parallelism or completions of Jobs
|
||||
|
||||
- can't express Pods with multiple containers
|
||||
|
||||
- can't express healthchecks, resource limits
|
||||
|
||||
- etc.
|
||||
|
||||
- `kubectl create` and `kubectl run` are *helpers* that generate YAML manifests
|
||||
|
||||
- If we write these manifests ourselves, we can use all features and options
|
||||
|
||||
- We'll see later how to do that!
|
||||
|
||||
@@ -1,4 +1,4 @@
|
||||
# Last words
|
||||
# What's next?
|
||||
|
||||
- Congratulations!
|
||||
|
||||
@@ -189,20 +189,6 @@ are a few tools that can help us.*
|
||||
|
||||
---
|
||||
|
||||
## Developer experience
|
||||
|
||||
- How do we on-board a new developer?
|
||||
|
||||
- What do they need to install to get a dev stack?
|
||||
|
||||
- How does a code change make it from dev to prod?
|
||||
|
||||
- How does someone add a component to a stack?
|
||||
|
||||
*These questions are good "sanity checks" to validate our strategy!*
|
||||
|
||||
---
|
||||
|
||||
## Some guidelines
|
||||
|
||||
- Start small
|
||||
@@ -132,15 +132,15 @@ Exactly what we need!
|
||||
|
||||
- Everything created with `kubectl run` has a label `run`
|
||||
|
||||
- Everything created with `kubectl create deployment` has a label `app`
|
||||
- We can use that property to view the logs of all the pods created with `kubectl run`
|
||||
|
||||
- We can use that property to view the logs of all the pods created with `kubectl create deployment`
|
||||
- Similarly, everything created with `kubectl create deployment` has a label `app`
|
||||
|
||||
.exercise[
|
||||
|
||||
- View the logs for all the things started with `kubectl create deployment`:
|
||||
- View the logs for all the things started with `kubectl run`:
|
||||
```bash
|
||||
stern -l app
|
||||
stern -l run
|
||||
```
|
||||
|
||||
<!--
|
||||
|
||||
@@ -64,19 +64,3 @@ If it shows our nodes and their CPU and memory load, we're good!
|
||||
]
|
||||
|
||||
- We can also use selectors (`-l app=...`)
|
||||
|
||||
---
|
||||
|
||||
## Other tools
|
||||
|
||||
- kube-capacity is a great CLI tool to view resources
|
||||
|
||||
(https://github.com/robscott/kube-capacity)
|
||||
|
||||
- It can show resource and limits, and compare them with usage
|
||||
|
||||
- It can show utilization per node, or per pod
|
||||
|
||||
- kube-resource-report can generate HTML reports
|
||||
|
||||
(https://github.com/hjacobs/kube-resource-report)
|
||||
|
||||
@@ -570,7 +570,7 @@ After the Kibana UI loads, we need to click around a bit
|
||||
|
||||
## Deploying our apps with operators
|
||||
|
||||
- It is very simple to deploy with `kubectl create deployment` / `kubectl expose`
|
||||
- It is very simple to deploy with `kubectl run` / `kubectl expose`
|
||||
|
||||
- We can unlock more features by writing YAML and using `kubectl apply`
|
||||
|
||||
|
||||
@@ -30,6 +30,8 @@
|
||||
|
||||
- Go to @@SLIDES@@ to view these slides
|
||||
|
||||
- Join the chat room: @@CHAT@@
|
||||
|
||||
<!-- ```open @@SLIDES@@``` -->
|
||||
|
||||
]
|
||||
|
||||
@@ -1,8 +1,8 @@
|
||||
## Versions installed
|
||||
|
||||
- Kubernetes 1.18.0
|
||||
- Docker Engine 19.03.8
|
||||
- Docker Compose 1.25.4
|
||||
- Kubernetes 1.17.2
|
||||
- Docker Engine 19.03.5
|
||||
- Docker Compose 1.24.1
|
||||
|
||||
<!-- ##VERSION## -->
|
||||
|
||||
@@ -27,11 +27,11 @@ class: extra-details
|
||||
|
||||
*however ...*
|
||||
|
||||
- Kubernetes 1.15 validates Docker Engine versions [up to 18.09](https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.15.md#dependencies)
|
||||
- Kubernetes 1.15 validates Docker Engine versions [up to 18.09](https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG-1.15.md#dependencies)
|
||||
<br/>
|
||||
(the latest version when Kubernetes 1.14 was released)
|
||||
|
||||
- Kubernetes 1.13 only validates Docker Engine versions [up to 18.06](https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.13.md#external-dependencies)
|
||||
- Kubernetes 1.13 only validates Docker Engine versions [up to 18.06](https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG-1.13.md#external-dependencies)
|
||||
|
||||
- Is it a problem if I use Kubernetes with a "too recent" Docker Engine?
|
||||
|
||||
|
||||
@@ -209,37 +209,19 @@ And *then* it is time to look at orchestration!
|
||||
|
||||
## Managing stack deployments
|
||||
|
||||
- Applications are made of many resources
|
||||
- The best deployment tool will vary, depending on:
|
||||
|
||||
(Deployments, Services, and much more)
|
||||
- the size and complexity of your stack(s)
|
||||
- how often you change it (i.e. add/remove components)
|
||||
- the size and skills of your team
|
||||
|
||||
- We need to automate the creation / update / management of these resources
|
||||
- A few examples:
|
||||
|
||||
- There is no "absolute best" tool or method; it depends on:
|
||||
|
||||
- the size and complexity of our stack(s)
|
||||
- how often we change it (i.e. add/remove components)
|
||||
- the size and skills of our team
|
||||
|
||||
---
|
||||
|
||||
## A few tools to manage stacks
|
||||
|
||||
- Shell scripts invoking `kubectl`
|
||||
|
||||
- YAML resource manifests committed to a repo
|
||||
|
||||
- [Kustomize](https://github.com/kubernetes-sigs/kustomize)
|
||||
(YAML manifests + patches applied on top)
|
||||
|
||||
- [Helm](https://github.com/kubernetes/helm)
|
||||
(YAML manifests + templating engine)
|
||||
|
||||
- [Spinnaker](https://www.spinnaker.io/)
|
||||
(Netflix' CD platform)
|
||||
|
||||
- [Brigade](https://brigade.sh/)
|
||||
(event-driven scripting; no YAML)
|
||||
- shell scripts invoking `kubectl`
|
||||
- YAML resources descriptions committed to a repo
|
||||
- [Helm](https://github.com/kubernetes/helm) (~package manager)
|
||||
- [Spinnaker](https://www.spinnaker.io/) (Netflix' CD platform)
|
||||
- [Brigade](https://brigade.sh/) (event-driven scripting; no YAML)
|
||||
|
||||
---
|
||||
|
||||
@@ -278,3 +260,17 @@ Sorry Star Trek fans, this is not the federation you're looking for!
|
||||
- Synchronize resources across clusters
|
||||
|
||||
- Discover resources across clusters
|
||||
|
||||
---
|
||||
|
||||
## Developer experience
|
||||
|
||||
*We've put this last, but it's pretty important!*
|
||||
|
||||
- How do you on-board a new developer?
|
||||
|
||||
- What do they need to install to get a dev stack?
|
||||
|
||||
- How does a code change make it from dev to prod?
|
||||
|
||||
- How does someone add a component to a stack?
|
||||
|
||||
@@ -21,33 +21,25 @@ chapters:
|
||||
- logistics.md
|
||||
- k8s/intro.md
|
||||
- shared/about-slides.md
|
||||
- shared/chat-room-im.md
|
||||
#- shared/chat-room-zoom.md
|
||||
- shared/toc.md
|
||||
-
|
||||
- k8s/prereqs-admin.md
|
||||
- - k8s/prereqs-admin.md
|
||||
- k8s/architecture.md
|
||||
- k8s/deploymentslideshow.md
|
||||
- k8s/dmuc.md
|
||||
-
|
||||
- k8s/multinode.md
|
||||
- - k8s/multinode.md
|
||||
- k8s/cni.md
|
||||
- k8s/interco.md
|
||||
-
|
||||
- k8s/apilb.md
|
||||
#- k8s/setup-managed.md
|
||||
#- k8s/setup-selfhosted.md
|
||||
- k8s/cluster-upgrade.md
|
||||
- k8s/cluster-backup.md
|
||||
- k8s/staticpods.md
|
||||
-
|
||||
#- k8s/cloud-controller-manager.md
|
||||
#- k8s/bootstrap.md
|
||||
- k8s/control-plane-auth.md
|
||||
- k8s/podsecuritypolicy.md
|
||||
- k8s/csr-api.md
|
||||
- k8s/openid-connect.md
|
||||
-
|
||||
#- k8s/lastwords-admin.md
|
||||
- - k8s/setup-managed.md
|
||||
- k8s/setup-selfhosted.md
|
||||
- k8s/cluster-upgrade.md
|
||||
- k8s/staticpods.md
|
||||
- k8s/cluster-backup.md
|
||||
- k8s/cloud-controller-manager.md
|
||||
- k8s/bootstrap.md
|
||||
- - k8s/resource-limits.md
|
||||
- k8s/metrics-server.md
|
||||
- k8s/cluster-sizing.md
|
||||
- k8s/horizontal-pod-autoscaler.md
|
||||
- - k8s/lastwords-admin.md
|
||||
- k8s/links.md
|
||||
- shared/thankyou.md
|
||||
|
||||
@@ -21,8 +21,6 @@ chapters:
|
||||
- logistics.md
|
||||
- k8s/intro.md
|
||||
- shared/about-slides.md
|
||||
- shared/chat-room-im.md
|
||||
#- shared/chat-room-zoom.md
|
||||
- shared/toc.md
|
||||
# DAY 1
|
||||
- - k8s/prereqs-admin.md
|
||||
@@ -31,7 +29,6 @@ chapters:
|
||||
- k8s/dmuc.md
|
||||
- - k8s/multinode.md
|
||||
- k8s/cni.md
|
||||
- k8s/interco.md
|
||||
- - k8s/apilb.md
|
||||
- k8s/setup-managed.md
|
||||
- k8s/setup-selfhosted.md
|
||||
@@ -61,7 +58,7 @@ chapters:
|
||||
- k8s/operators.md
|
||||
###- k8s/operators-design.md
|
||||
# CONCLUSION
|
||||
- - k8s/lastwords.md
|
||||
- - k8s/lastwords-admin.md
|
||||
- k8s/links.md
|
||||
- shared/thankyou.md
|
||||
- |
|
||||
|
||||
@@ -1,6 +1,7 @@
|
||||
title: |
|
||||
Deploying and Scaling Microservices
|
||||
with Kubernetes
|
||||
Kubernetes
|
||||
@
|
||||
VMware
|
||||
|
||||
#chat: "[Slack](https://dockercommunity.slack.com/messages/C7GKACWDV)"
|
||||
#chat: "[Gitter](https://gitter.im/jpetazzo/workshop-yyyymmdd-city)"
|
||||
@@ -8,20 +9,19 @@ chat: "In person!"
|
||||
|
||||
gitrepo: github.com/jpetazzo/container.training
|
||||
|
||||
slides: http://container.training/
|
||||
slides: https://2020-02-vmware.container.training/
|
||||
|
||||
#slidenumberprefix: "#SomeHashTag — "
|
||||
slidenumberprefix: "@jpetazzo — "
|
||||
|
||||
exclude:
|
||||
- self-paced
|
||||
- chat-room
|
||||
|
||||
chapters:
|
||||
- shared/title.md
|
||||
- logistics.md
|
||||
- k8s/intro.md
|
||||
- shared/about-slides.md
|
||||
- shared/chat-room-im.md
|
||||
#- shared/chat-room-zoom.md
|
||||
- shared/toc.md
|
||||
-
|
||||
- shared/prereqs.md
|
||||
@@ -37,43 +37,60 @@ chapters:
|
||||
-
|
||||
- k8s/kubectlrun.md
|
||||
- k8s/logs-cli.md
|
||||
- vmware/vrli.md
|
||||
- shared/declarative.md
|
||||
- k8s/declarative.md
|
||||
- k8s/deploymentslideshow.md
|
||||
- k8s/kubenet.md
|
||||
- k8s/kubectlexpose.md
|
||||
- vmware/nsxt.md
|
||||
- k8s/shippingimages.md
|
||||
#- k8s/buildshiprun-selfhosted.md
|
||||
- k8s/buildshiprun-dockerhub.md
|
||||
- k8s/ourapponkube.md
|
||||
#- k8s/exercise-wordsmith.md
|
||||
-
|
||||
- k8s/yamldeploy.md
|
||||
- k8s/setup-k8s.md
|
||||
- vmware/pks.md
|
||||
#- k8s/dashboard.md
|
||||
#- k8s/kubectlscale.md
|
||||
- k8s/scalingdockercoins.md
|
||||
- shared/hastyconclusions.md
|
||||
- k8s/daemonset.md
|
||||
- |
|
||||
## Scaling `rng`
|
||||
|
||||
- Let's scale the `rng` service just like we scaled `worker`
|
||||
|
||||
.exercise[
|
||||
|
||||
- Scale `rng`:
|
||||
```bash
|
||||
kubectl scale deploy rng --replicas=2
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
The web UI graph should go past 10 hashes/second.
|
||||
|
||||
- vmware/vrops.md
|
||||
#- shared/hastyconclusions.md
|
||||
#- k8s/daemonset.md
|
||||
#- k8s/dryrun.md
|
||||
#- k8s/exercise-yaml.md
|
||||
#- k8s/localkubeconfig.md
|
||||
#- k8s/accessinternal.md
|
||||
#- k8s/kubectlproxy.md
|
||||
- k8s/rollout.md
|
||||
#- k8s/healthchecks.md
|
||||
- k8s/healthchecks.md
|
||||
#- k8s/healthchecks-more.md
|
||||
#- k8s/record.md
|
||||
-
|
||||
- k8s/namespaces.md
|
||||
- k8s/ingress.md
|
||||
#- k8s/ingress.md
|
||||
#- k8s/kustomize.md
|
||||
#- k8s/helm-intro.md
|
||||
#- k8s/helm-chart-format.md
|
||||
#- k8s/helm-create-basic-chart.md
|
||||
#- k8s/helm-create-better-chart.md
|
||||
#- k8s/helm-secrets.md
|
||||
#- k8s/exercise-helm.md
|
||||
#- k8s/create-chart.md
|
||||
#- k8s/create-more-charts.md
|
||||
#- k8s/netpol.md
|
||||
@@ -82,7 +99,6 @@ chapters:
|
||||
#- k8s/openid-connect.md
|
||||
#- k8s/podsecuritypolicy.md
|
||||
- k8s/volumes.md
|
||||
#- k8s/exercise-configmap.md
|
||||
#- k8s/build-with-docker.md
|
||||
#- k8s/build-with-kaniko.md
|
||||
- k8s/configuration.md
|
||||
@@ -99,6 +115,43 @@ chapters:
|
||||
#- k8s/gitworkflows.md
|
||||
-
|
||||
- k8s/whatsnext.md
|
||||
- k8s/lastwords.md
|
||||
- k8s/links.md
|
||||
- shared/thankyou.md
|
||||
-
|
||||
- |
|
||||
# (Extra)
|
||||
- k8s/localkubeconfig.md
|
||||
- k8s/accessinternal.md
|
||||
- k8s/kubectlproxy.md
|
||||
- k8s/ingress.md
|
||||
-
|
||||
- |
|
||||
# (Extra)
|
||||
- k8s/kustomize.md
|
||||
- k8s/helm-intro.md
|
||||
- k8s/helm-chart-format.md
|
||||
- k8s/helm-create-basic-chart.md
|
||||
- k8s/helm-create-better-chart.md
|
||||
- k8s/helm-secrets.md
|
||||
-
|
||||
- |
|
||||
# (Extra)
|
||||
- k8s/netpol.md
|
||||
- k8s/authn-authz.md
|
||||
- k8s/csr-api.md
|
||||
- k8s/openid-connect.md
|
||||
- k8s/podsecuritypolicy.md
|
||||
-
|
||||
- |
|
||||
# (Extra)
|
||||
- k8s/logs-centralized.md
|
||||
- k8s/prometheus.md
|
||||
- k8s/statefulsets.md
|
||||
- k8s/local-persistent-volumes.md
|
||||
- k8s/portworx.md
|
||||
-
|
||||
- |
|
||||
# (Extra)
|
||||
- k8s/extending-api.md
|
||||
- k8s/operators.md
|
||||
- k8s/operators-design.md
|
||||
|
||||
@@ -22,8 +22,6 @@ chapters:
|
||||
- logistics-bridget.md
|
||||
- k8s/intro.md
|
||||
- shared/about-slides.md
|
||||
- shared/chat-room-im.md
|
||||
#- shared/chat-room-zoom.md
|
||||
- shared/toc.md
|
||||
- - shared/prereqs.md
|
||||
#- shared/webssh.md
|
||||
|
||||
@@ -20,8 +20,6 @@ chapters:
|
||||
#- logistics.md
|
||||
- k8s/intro.md
|
||||
- shared/about-slides.md
|
||||
#- shared/chat-room-im.md
|
||||
#- shared/chat-room-zoom.md
|
||||
- shared/toc.md
|
||||
-
|
||||
- shared/prereqs.md
|
||||
@@ -47,7 +45,6 @@ chapters:
|
||||
- k8s/buildshiprun-selfhosted.md
|
||||
- k8s/buildshiprun-dockerhub.md
|
||||
- k8s/ourapponkube.md
|
||||
#- k8s/exercise-wordsmith.md
|
||||
- k8s/yamldeploy.md
|
||||
-
|
||||
- k8s/setup-k8s.md
|
||||
@@ -57,7 +54,6 @@ chapters:
|
||||
- shared/hastyconclusions.md
|
||||
- k8s/daemonset.md
|
||||
- k8s/dryrun.md
|
||||
#- k8s/exercise-yaml.md
|
||||
-
|
||||
- k8s/rollout.md
|
||||
- k8s/healthchecks.md
|
||||
@@ -76,7 +72,6 @@ chapters:
|
||||
- k8s/helm-create-basic-chart.md
|
||||
- k8s/helm-create-better-chart.md
|
||||
- k8s/helm-secrets.md
|
||||
#- k8s/exercise-helm.md
|
||||
-
|
||||
- k8s/netpol.md
|
||||
- k8s/authn-authz.md
|
||||
@@ -86,7 +81,6 @@ chapters:
|
||||
- k8s/control-plane-auth.md
|
||||
-
|
||||
- k8s/volumes.md
|
||||
#- k8s/exercise-configmap.md
|
||||
- k8s/build-with-docker.md
|
||||
- k8s/build-with-kaniko.md
|
||||
-
|
||||
@@ -118,6 +112,6 @@ chapters:
|
||||
- k8s/cloud-controller-manager.md
|
||||
- k8s/gitworkflows.md
|
||||
-
|
||||
- k8s/lastwords.md
|
||||
- k8s/whatsnext.md
|
||||
- k8s/links.md
|
||||
- shared/thankyou.md
|
||||
|
||||
@@ -20,8 +20,6 @@ chapters:
|
||||
- logistics.md
|
||||
- k8s/intro.md
|
||||
- shared/about-slides.md
|
||||
- shared/chat-room-im.md
|
||||
#- shared/chat-room-zoom.md
|
||||
- shared/toc.md
|
||||
-
|
||||
- shared/prereqs.md
|
||||
@@ -46,7 +44,6 @@ chapters:
|
||||
#- k8s/buildshiprun-selfhosted.md
|
||||
- k8s/buildshiprun-dockerhub.md
|
||||
- k8s/ourapponkube.md
|
||||
#- k8s/exercise-wordsmith.md
|
||||
-
|
||||
- k8s/yamldeploy.md
|
||||
#- k8s/setup-k8s.md
|
||||
@@ -56,7 +53,6 @@ chapters:
|
||||
- shared/hastyconclusions.md
|
||||
- k8s/daemonset.md
|
||||
- k8s/dryrun.md
|
||||
#- k8s/exercise-yaml.md
|
||||
-
|
||||
- k8s/localkubeconfig.md
|
||||
- k8s/accessinternal.md
|
||||
@@ -74,7 +70,6 @@ chapters:
|
||||
- k8s/helm-create-basic-chart.md
|
||||
- k8s/helm-create-better-chart.md
|
||||
- k8s/helm-secrets.md
|
||||
#- k8s/exercise-helm.md
|
||||
-
|
||||
- k8s/netpol.md
|
||||
- k8s/authn-authz.md
|
||||
@@ -83,7 +78,6 @@ chapters:
|
||||
#- k8s/podsecuritypolicy.md
|
||||
-
|
||||
- k8s/volumes.md
|
||||
#- k8s/exercise-configmap.md
|
||||
#- k8s/build-with-docker.md
|
||||
#- k8s/build-with-kaniko.md
|
||||
- k8s/configuration.md
|
||||
@@ -101,6 +95,5 @@ chapters:
|
||||
#- k8s/gitworkflows.md
|
||||
-
|
||||
- k8s/whatsnext.md
|
||||
- k8s/lastwords.md
|
||||
- k8s/links.md
|
||||
- shared/thankyou.md
|
||||
|
||||
@@ -1,35 +1,11 @@
|
||||
## Intros
|
||||
|
||||
- This slide should be customized by the tutorial instructor(s).
|
||||
- Hello! I'm Jérôme ([@jpetazzo](https://twitter.com/jpetazzo), Tiny Shell Script LLC)
|
||||
|
||||
- Hello! We are:
|
||||
- The workshop will run from 9am to 5pm
|
||||
|
||||
- .emoji[👩🏻🏫] Ann O'Nymous ([@...](https://twitter.com/...), Megacorp Inc)
|
||||
|
||||
- .emoji[👨🏾🎓] Stu Dent ([@...](https://twitter.com/...), University of Wakanda)
|
||||
|
||||
<!-- .dummy[
|
||||
|
||||
- .emoji[👷🏻♀️] AJ ([@s0ulshake](https://twitter.com/s0ulshake), Travis CI)
|
||||
|
||||
- .emoji[🚁] Alexandre ([@alexbuisine](https://twitter.com/alexbuisine), Enix SAS)
|
||||
|
||||
- .emoji[🐳] Jérôme ([@jpetazzo](https://twitter.com/jpetazzo), Enix SAS)
|
||||
|
||||
- .emoji[⛵] Jérémy ([@jeremygarrouste](twitter.com/jeremygarrouste), Inpiwee)
|
||||
|
||||
- .emoji[🎧] Romain ([@rdegez](https://twitter.com/rdegez), Enix SAS)
|
||||
|
||||
] -->
|
||||
|
||||
- The workshop will run from ...
|
||||
|
||||
- There will be a lunch break at ...
|
||||
|
||||
(And coffee breaks!)
|
||||
- There will be a lunch break (and coffee breaks!)
|
||||
|
||||
- Feel free to interrupt for questions at any time
|
||||
|
||||
- *Especially when you see full screen container pictures!*
|
||||
|
||||
- Live feedback, questions, help: @@CHAT@@
|
||||
|
||||
@@ -1,11 +0,0 @@
|
||||
<html xmlns="http://www.w3.org/1999/xhtml">
|
||||
<head>
|
||||
<title>Send an email to Jérôme</title>
|
||||
<meta http-equiv="refresh" content="0;URL='mailto:jerome.petazzoni@gmail.com?subject=I%20was%20at%20your%20Docker/Kubernetes%20workshop%20in%20London.%20Can%20you%20train%20my%20team%3F
|
||||
'" />
|
||||
</head>
|
||||
<body>
|
||||
<p>Click <a href="mailto:jerome.petazzoni@gmail.com?subject=I%20was%20at%20your%20Docker/Kubernetes%20workshop%20in%20London.%20Can%20you%20train%20my%20team%3F">
|
||||
here</a> to send an email to Jérôme to inquire about Docker/Kubernetes training.</p>
|
||||
</body>
|
||||
</html>
|
||||
@@ -73,3 +73,19 @@ class: extra-details
|
||||
- you want only the most essential information
|
||||
|
||||
- You can review these slides another time if you want, they'll be waiting for you ☺
|
||||
|
||||
---
|
||||
|
||||
class: in-person, chat-room
|
||||
|
||||
## Chat room
|
||||
|
||||
- We've set up a chat room that we will monitor during the workshop
|
||||
|
||||
- Don't hesitate to use it to ask questions, or get help, or share feedback
|
||||
|
||||
- The chat room will also be available after the workshop
|
||||
|
||||
- Join the chat room: @@CHAT@@
|
||||
|
||||
- Say hi in the chat room!
|
||||
|
||||
@@ -1,11 +0,0 @@
|
||||
## Chat room
|
||||
|
||||
- We've set up a chat room that we will monitor during the workshop
|
||||
|
||||
- Don't hesitate to use it to ask questions, or get help, or share feedback
|
||||
|
||||
- The chat room will also be available after the workshop
|
||||
|
||||
- Join the chat room: @@CHAT@@
|
||||
|
||||
- Say hi in the chat room!
|
||||
@@ -1,68 +0,0 @@
|
||||
## Use the chat!
|
||||
|
||||
- In the Zoom UI, click on "Chat" (at the bottom of the screen, in the middle)
|
||||
|
||||
- This will bring up the chat panel
|
||||
|
||||
- Say hi in the group chat!
|
||||
|
||||
- If you'd like, you can open the chat to its own separate window:
|
||||
|
||||
- click on the little `v` on the left of "Zoom Group Chat"
|
||||
|
||||
- select "Pop Out"
|
||||
|
||||
- We will be monitoring the Zoom chat during the whole training
|
||||
|
||||
- Don't hesitate to use it to ask questions, or get help, or share feedback
|
||||
|
||||
---
|
||||
|
||||
## Use non-verbal communication cues
|
||||
|
||||
- ... wait, what?!?
|
||||
|
||||
--
|
||||
|
||||
- In the Zoom UI, click on "Participants" (at the bottom of the screen, in the middle)
|
||||
|
||||
- This will bring up the list of participants
|
||||
|
||||
- You can pop it out if you like (just like the chat window)
|
||||
|
||||
- At the bottom of the list of participants, there are feedback buttons:
|
||||
|
||||
raise hand, yes, no, go slower, go faster
|
||||
|
||||
- If you click on "more" (on the right of these feedback buttons), you can also:
|
||||
|
||||
thumbs down, thumbs up, applause, need a break, away
|
||||
|
||||
- Click on "thumbs up" to let us know that everything is working fine!
|
||||
|
||||
---
|
||||
|
||||
## Use your webcam (if you'd like!)
|
||||
|
||||
- If you would like to turn on your webcam, feel free to do so
|
||||
|
||||
- You don't have to, but your teacher will appreciate it :)
|
||||
|
||||
(it's easier to teach and get feedback from human faces!)
|
||||
|
||||
- You are welcome to smile / frown / raise your hand ... through your webcam as well!
|
||||
|
||||
- Great metaphor, courtesy of
|
||||
[Liz Howard](https://twitter.com/lizthedeveloper)):
|
||||
|
||||
*“It's just like being in a classroom.
|
||||
<br/>People with their webcam on are in the front row;
|
||||
<br/>people with their webcam off are in the back row.”*
|
||||
|
||||
---
|
||||
|
||||
## During the session
|
||||
|
||||
- We will often ask "yes/no" questions; use the corresponding buttons
|
||||
|
||||
- If you have a question, you can ask in the chat, or use "raise hand"
|
||||
@@ -11,16 +11,5 @@ class: title, in-person
|
||||
@@TITLE@@<br/></br>
|
||||
|
||||
.footnote[
|
||||
**Slides[:](https://www.youtube.com/watch?v=h16zyxiwDLY) @@SLIDES@@**
|
||||
**Slides: @@SLIDES@@**
|
||||
]
|
||||
|
||||
<!--
|
||||
WiFi: **Something**<br/>
|
||||
Password: **Something**
|
||||
|
||||
**Be kind to the WiFi!**<br/>
|
||||
*Use the 5G network.*
|
||||
*Don't use your hotspot.*<br/>
|
||||
*Don't stream videos or download big files during the workshop*<br/>
|
||||
*Thank you!*
|
||||
-->
|
||||
|
||||
@@ -24,8 +24,6 @@ chapters:
|
||||
- logistics.md
|
||||
- swarm/intro.md
|
||||
- shared/about-slides.md
|
||||
- shared/chat-room-im.md
|
||||
#- shared/chat-room-zoom.md
|
||||
- shared/toc.md
|
||||
- - shared/prereqs.md
|
||||
- shared/connecting.md
|
||||
|
||||
@@ -24,8 +24,6 @@ chapters:
|
||||
- logistics.md
|
||||
- swarm/intro.md
|
||||
- shared/about-slides.md
|
||||
- shared/chat-room-im.md
|
||||
#- shared/chat-room-zoom.md
|
||||
- shared/toc.md
|
||||
- - shared/prereqs.md
|
||||
- shared/connecting.md
|
||||
|
||||
@@ -19,8 +19,6 @@ chapters:
|
||||
#- shared/logistics.md
|
||||
- swarm/intro.md
|
||||
- shared/about-slides.md
|
||||
#- shared/chat-room-im.md
|
||||
#- shared/chat-room-zoom.md
|
||||
- shared/toc.md
|
||||
- - shared/prereqs.md
|
||||
- shared/connecting.md
|
||||
|
||||
9
slides/vmware/nsxt.md
Normal file
9
slides/vmware/nsxt.md
Normal file
@@ -0,0 +1,9 @@
|
||||
# NSX-T
|
||||
|
||||
*Connect and secure Kubernetes Pods*
|
||||
|
||||
- Distributed firewall and micro-segmentation for VMs and Pods
|
||||
|
||||
- Ingress and LoadBalancer Controller for Kubernetes
|
||||
|
||||
- Traceflow for Pods and dynamic routing
|
||||
16
slides/vmware/pks.md
Normal file
16
slides/vmware/pks.md
Normal file
@@ -0,0 +1,16 @@
|
||||
# PKS
|
||||
|
||||
*Automate and streamline Kubernetes cluster deployment and operations*
|
||||
|
||||
- Fully automated installation of mainstream Kubernetes
|
||||
|
||||
- Scale up, scale down & upgrade clusters
|
||||
|
||||
- Highly-available control plane & self-healing features
|
||||
|
||||
(replace nodes automatically when needed and deploy CVE patches)
|
||||
|
||||
- Integration with VMware SDDC (Software Defined Data Center) features
|
||||
|
||||
(e.g. vMotion, DRS, Shared Datastore, NSX-T, vREALIZE Suite)
|
||||
|
||||
12
slides/vmware/vrli.md
Normal file
12
slides/vmware/vrli.md
Normal file
@@ -0,0 +1,12 @@
|
||||
# vRLI
|
||||
|
||||
*Centralize logs*
|
||||
|
||||
- Compatible with syslog
|
||||
|
||||
- Query language
|
||||
|
||||
- Dashboards
|
||||
|
||||
- High ingest capacity
|
||||
|
||||
11
slides/vmware/vrops.md
Normal file
11
slides/vmware/vrops.md
Normal file
@@ -0,0 +1,11 @@
|
||||
# vROPS
|
||||
|
||||
*Manage Kubernetes and/or PKS clusters*
|
||||
|
||||
- Automatically add new PKS clusters after deployment
|
||||
|
||||
- Supervision
|
||||
|
||||
- Capacity management
|
||||
|
||||
- Global view of infrastructure
|
||||
9
slides/vmware/vsan.md
Normal file
9
slides/vmware/vsan.md
Normal file
@@ -0,0 +1,9 @@
|
||||
# vSAN
|
||||
|
||||
*Instantiate Stateful Pods*
|
||||
|
||||
- Compatible with CSI
|
||||
|
||||
- Distributed storage for higher fault tolerance + performance
|
||||
|
||||
- Available for Pods and VMs
|
||||
Reference in New Issue
Block a user