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10 Commits

Author SHA1 Message Date
Jerome Petazzoni
8dacf00bf3 Test gitpod 2020-04-03 10:56:39 -05:00
Jerome Petazzoni
454843b755 Bump up versions 2020-04-02 07:39:10 -05:00
Jerome Petazzoni
63e68ab720 Update kubectl run to kubectl create deploy 2020-03-31 09:09:24 -05:00
Jerome Petazzoni
46f0bc0dfb Update kubectl run slideshow 2020-03-31 08:53:49 -05:00
Jerome Petazzoni
16bb3f1847 Split out chat room instructions for in-person vs online
Add instructions specific to Zoom, explaining how to
use the chat room and the non-verbal communication cues
2020-03-29 09:30:11 -05:00
Jerome Petazzoni
fef3fa31fb Update for Kubernetes 1.18 kubectl run
In Kubernetes 1.18, `kubectl run` no longer creates
a Deployment, and cannot create Jobs or CronJobs
anymore. It only creates Pods. Since we were using
`kubectl run` to create our first Deployment, I've
changed the materials to explain that change, and
explain how the behavior differs between 1.17- and
1.18+, since I expect that people will deal with
a mix of both scenarios for a while (at least a
year).
2020-03-28 13:53:45 -05:00
Jerome Petazzoni
b844e40372 Refactor card generation
Many improvements. QR code, fixed page size, better
use of page estate, etc.

Also pdfkit should kind of work now (not quite using
the full page size, but at least it's not utterly
broken like before).
2020-03-20 13:56:50 -05:00
Jerome Petazzoni
5b5d5946e8 Add logic for QRCode on back of cards 2020-03-20 08:24:58 -05:00
Jerome Petazzoni
af6705fb1e Add script to map DNS
This script needs:
- a list of domains managed by GANDI LiveDNS
- a list of IP addresses of clusters (like in tags/*/ips.txt)

It will replace the current configuration for these
domains so that they point to the clusters.

The apex of each domain and a wildcard entry will
have round-robin records pointing to all the nodes
of the cluster.

In addition, there will be records node[1234...]
pointing to each individual node.
2020-03-19 17:15:43 -05:00
Jerome Petazzoni
bfd63c16c6 Add tailhist to start a websocket server showing bash history on port 1088 2020-03-19 15:49:50 -05:00
68 changed files with 2218 additions and 1494 deletions

1
.gitpod.yml Normal file
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@@ -0,0 +1 @@
image: jpetazzo/shpod

View File

@@ -366,6 +366,34 @@ EOF
sudo systemctl start pinger"
}
_cmd tailhist "Install history viewer on port 1088"
_cmd_tailhist () {
TAG=$1
need_tag
pssh "
wget https://github.com/joewalnes/websocketd/releases/download/v0.3.0/websocketd-0.3.0_amd64.deb
sudo dpkg -i websocketd-0.3.0_amd64.deb
sudo mkdir -p /tmp/tailhist
sudo tee /root/tailhist.service <<EOF
[Unit]
Description=tailhist
[Install]
WantedBy=multi-user.target
[Service]
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\\\"?'\"
User=nobody
Group=nogroup
Restart=always
EOF
sudo systemctl enable /root/tailhist.service
sudo systemctl start tailhist"
pssh -I sudo tee /tmp/tailhist/index.html <lib/tailhist.html
}
_cmd opensg "Open the default security group to ALL ingress traffic"
_cmd_opensg() {
need_infra $1

View File

@@ -42,13 +42,15 @@ 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": context["paper_size"],
"margin-top": context["paper_margin"],
"margin-bottom": context["paper_margin"],
"margin-left": context["paper_margin"],
"margin-right": context["paper_margin"],
"page-size": paper_size,
"margin-top": margin,
"margin-bottom": margin,
"margin-left": margin,
"margin-right": margin,
})
print("Generated ips.pdf")
except ImportError:

View File

@@ -65,6 +65,15 @@ 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
trap 'history -a' DEBUG
export HISTFILE=~/.history
SQRL""")
# Custom .vimrc
system("""sudo -u docker tee /home/docker/.vimrc <<SQRL
syntax on

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@@ -0,0 +1,42 @@
<!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>

49
prepare-vms/map-dns.py Executable file
View File

@@ -0,0 +1,49 @@
#!/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.")

View File

@@ -10,13 +10,6 @@ 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

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@@ -10,13 +10,6 @@ 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

View File

@@ -10,13 +10,6 @@ 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

View File

@@ -10,13 +10,6 @@ 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

View File

@@ -12,13 +12,6 @@ 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

View File

@@ -12,18 +12,11 @@ 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: 1.24.1
compose_version: 1.25.4
machine_version: 0.15.0
# Password used to connect with the "docker user"

View File

@@ -10,19 +10,13 @@ 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
# These correspond to the version numbers visible on their respective GitHub release pages
compose_version: 1.24.1
compose_version: 1.25.4
machine_version: 0.14.0
# Password used to connect with the "docker user"
docker_user_password: training

View File

@@ -12,13 +12,6 @@ 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

View File

@@ -12,13 +12,6 @@ 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

View File

@@ -18,8 +18,14 @@
| default("kube") -%}
{%- set clusternumber = clusternumber
| default(None) -%}
{%- if qrcode == True -%}
{%- set qrcode = "https://container.training/q" -%}
{%- elif qrcode -%}
{%- set qrcode = qrcode -%}
{%- endif -%}
{%- set image_src = {
{# You can also set img_bottom_src instead. #}
{%- set img_logo_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",
@@ -85,9 +91,33 @@
{%- 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;
@@ -108,53 +138,45 @@ div {
float: left;
border: 1px dotted black;
{% if backside %}
height: 31%;
height: 33%;
{% endif %}
padding-top: 1%;
padding-bottom: 1%;
/* columns * (width+left+right) < 100% */
/*
width: 21.5%;
padding-left: 1.5%;
padding-right: 1.5%;
width: 24.8%;
*/
/**/
width: 30%;
padding-left: 1.5%;
padding-right: 1.5%;
width: 33%;
/**/
}
p {
margin: 0.4em 0 0.4em 0;
margin: 0.8em;
}
div.back {
border: 1px dotted white;
border: 1px dotted grey;
}
div.back p {
margin: 0.5em 1em 0 1em;
span.scale {
white-space: nowrap;
}
img {
height: 4em;
img.logo {
height: 4.5em;
float: right;
margin-right: -0.2em;
}
img.bottom {
height: 2.5em;
display: block;
margin: 0.5em auto;
}
/*
img.enix {
height: 4.0em;
margin-top: 0.4em;
.qrcode img {
width: 40%;
margin: 1em;
}
img.kube {
height: 4.2em;
margin-top: 1.7em;
}
*/
.logpass {
font-family: monospace;
font-weight: bold;
@@ -164,16 +186,43 @@ img.kube {
page-break-after: always;
clear: both;
display: block;
height: 8px;
height: 0;
}
</style></head>
<body>
</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();">
{% for cluster in clusters %}
<div>
<p>{{ intro }}</p>
<p>
{% if image_src %}
<img src="{{ image_src }}" />
{% if img_logo_src %}
<img class="logo" src="{{ img_logo_src }}" />
{% endif %}
<table>
{% if clusternumber != None %}
@@ -202,7 +251,12 @@ img.kube {
<p>
{% if url %}
{{ slides_are_at }}
<center>{{ url }}</center>
<p>
<span class="scale">{{ url }}</span>
</p>
{% endif %}
{% if img_bottom_src %}
<img class="bottom" src="{{ img_bottom_src }}" />
{% endif %}
</p>
</div>
@@ -211,18 +265,21 @@ img.kube {
{% if backside %}
{% for x in range(pagesize) %}
<div class="back">
<br/>
<p>You got this at the workshop
<p>Thanks for attending
"Getting Started With Kubernetes and Container Orchestration"
during QCON London (March 2019).</p>
during CONFERENCE in Month YYYY!</p>
<p>If you liked that workshop,
I can train your team or organization
on Docker, container, and Kubernetes,
with curriculums of 1 to 5 days.
I can train your team, in person or
online, with custom courses of
any length and any level.
</p>
<p>Interested? Contact me at:</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>jerome.petazzoni@gmail.com</p>
<p>Thank you!</p>
</div>
{% endfor %}
<span class="pagebreak"></span>

View File

@@ -2,7 +2,6 @@
#/ /kube-halfday.yml.html 200
#/ /kube-fullday.yml.html 200
#/ /kube-twodays.yml.html 200
/ /qcon.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
@@ -11,3 +10,6 @@
#/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

View File

@@ -27,6 +27,8 @@ We will also explain the principle of overlay networks and network plugins.
## The Container Network Model
The CNM was introduced in Engine 1.9.0 (November 2015).
The CNM adds the notion of a *network*, and a new top-level command to manipulate and see those networks: `docker network`.
```bash
@@ -45,8 +47,6 @@ eb0eeab782f4 host host
* Conceptually, a network is a virtual switch.
(It's similar to e.g. a VLAN, or a WiFi network.)
* It can be local (to a single Engine) or global (spanning multiple hosts).
* A network has an IP subnet associated to it.
@@ -143,6 +143,77 @@ eb0eeab782f4 host host
---
## Placing containers on a network
We will create a *named* container on this network.
It will be reachable with its name, `es`.
```bash
$ docker run -d --name es --net dev elasticsearch:2
8abb80e229ce8926c7223beb69699f5f34d6f1d438bfc5682db893e798046863
```
---
## Communication between containers
Now, create another container on this network.
.small[
```bash
$ docker run -ti --net dev alpine sh
root@0ecccdfa45ef:/#
```
]
From this new container, we can resolve and ping the other one, using its assigned name:
.small[
```bash
/ # ping es
PING es (172.18.0.2) 56(84) bytes of data.
64 bytes from es.dev (172.18.0.2): icmp_seq=1 ttl=64 time=0.221 ms
64 bytes from es.dev (172.18.0.2): icmp_seq=2 ttl=64 time=0.114 ms
64 bytes from es.dev (172.18.0.2): icmp_seq=3 ttl=64 time=0.114 ms
^C
--- es ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 0.114/0.149/0.221/0.052 ms
root@0ecccdfa45ef:/#
```
]
---
class: extra-details
## Resolving container addresses
In Docker Engine 1.9, name resolution is implemented with `/etc/hosts`, and
updating it each time containers are added/removed.
.small[
```bash
[root@0ecccdfa45ef /]# cat /etc/hosts
172.18.0.3 0ecccdfa45ef
127.0.0.1 localhost
::1 localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
172.18.0.2 es
172.18.0.2 es.dev
```
]
In Docker Engine 1.10, this has been replaced by a dynamic resolver.
(This avoids race conditions when updating `/etc/hosts`.)
---
# Service discovery with containers
* Let's try to run an application that requires two containers.
@@ -194,16 +265,14 @@ Note: we're not using a FQDN or an IP address here; just `redis`.
* That container must be on the same network as the web server.
* We must give it a network alias (`redis`) so the application can find it.
* It must have the right name (`redis`) so the application can find it.
Start the container:
```bash
$ docker run --net dev --net-alias redis -d redis
$ docker run --net dev --name redis -d redis
```
Note: we could also use `--name redis`.
---
## Test the web server again
@@ -220,11 +289,136 @@ Note: we could also use `--name redis`.
* What if we want to run multiple copies of our application?
* We can use `--net-alias redis` for multiple containers.
* Since names are unique, there can be only one container named `redis` at a time.
* Network aliases are scoped per network, and independent from container names.
* However, we can specify the network name of our container with `--net-alias`.
* However, we can use `--name redis` only once, since names are unique.
* `--net-alias` is scoped per network, and independent from the container name.
---
class: extra-details
## Using a network alias instead of a name
Let's remove the `redis` container:
```bash
$ docker rm -f redis
```
And create one that doesn't block the `redis` name:
```bash
$ docker run --net dev --net-alias redis -d redis
```
Check that the app still works (but the counter is back to 1,
since we wiped out the old Redis container).
---
class: extra-details
## Names are *local* to each network
Let's try to ping our `es` container from another container, when that other container is *not* on the `dev` network.
```bash
$ docker run --rm alpine ping es
ping: bad address 'es'
```
Names can be resolved only when containers are on the same network.
Containers can contact each other only when they are on the same network (you can try to ping using the IP address to verify).
---
class: extra-details
## Network aliases
We would like to have another network, `prod`, with its own `es` container. But there can be only one container named `es`!
We will use *network aliases*.
A container can have multiple network aliases.
Network aliases are *local* to a given network (only exist in this network).
Multiple containers can have the same network alias (even on the same network). In Docker Engine 1.11, resolving a network alias yields the IP addresses of all containers holding this alias.
---
class: extra-details
## Creating containers on another network
Create the `prod` network.
```bash
$ docker network create prod
5a41562fecf2d8f115bedc16865f7336232a04268bdf2bd816aecca01b68d50c
```
We can now create multiple containers with the `es` alias on the new `prod` network.
```bash
$ docker run -d --name prod-es-1 --net-alias es --net prod elasticsearch:2
38079d21caf0c5533a391700d9e9e920724e89200083df73211081c8a356d771
$ docker run -d --name prod-es-2 --net-alias es --net prod elasticsearch:2
1820087a9c600f43159688050dcc164c298183e1d2e62d5694fd46b10ac3bc3d
```
---
class: extra-details
## Resolving network aliases
Let's try DNS resolution first, using the `nslookup` tool that ships with the `alpine` image.
```bash
$ docker run --net prod --rm alpine nslookup es
Name: es
Address 1: 172.23.0.3 prod-es-2.prod
Address 2: 172.23.0.2 prod-es-1.prod
```
(You can ignore the `can't resolve '(null)'` errors.)
---
class: extra-details
## Connecting to aliased containers
Each ElasticSearch instance has a name (generated when it is started). This name can be seen when we issue a simple HTTP request on the ElasticSearch API endpoint.
Try the following command a few times:
.small[
```bash
$ docker run --rm --net dev centos curl -s es:9200
{
"name" : "Tarot",
...
}
```
]
Then try it a few times by replacing `--net dev` with `--net prod`:
.small[
```bash
$ docker run --rm --net prod centos curl -s es:9200
{
"name" : "The Symbiote",
...
}
```
]
---
@@ -355,3 +549,194 @@ General idea:
- some plugins require configuration or activation (creating a special file that tells Docker "use the plugin whose control socket is at the following location")
- you can then `docker network create --driver pluginname`
---
## Connecting and disconnecting dynamically
* So far, we have specified which network to use when starting the container.
* The Docker Engine also allows connecting and disconnecting while the container is running.
* This feature is exposed through the Docker API, and through two Docker CLI commands:
* `docker network connect <network> <container>`
* `docker network disconnect <network> <container>`
---
## Dynamically connecting to a network
* We have a container named `es` connected to a network named `dev`.
* Let's start a simple alpine container on the default network:
```bash
$ docker run -ti alpine sh
/ #
```
* In this container, try to ping the `es` container:
```bash
/ # ping es
ping: bad address 'es'
```
This doesn't work, but we will change that by connecting the container.
---
## Finding the container ID and connecting it
* Figure out the ID of our alpine container; here are two methods:
* looking at `/etc/hostname` in the container,
* running `docker ps -lq` on the host.
* Run the following command on the host:
```bash
$ docker network connect dev `<container_id>`
```
---
## Checking what we did
* Try again to `ping es` from the container.
* It should now work correctly:
```bash
/ # ping es
PING es (172.20.0.3): 56 data bytes
64 bytes from 172.20.0.3: seq=0 ttl=64 time=0.376 ms
64 bytes from 172.20.0.3: seq=1 ttl=64 time=0.130 ms
^C
```
* Interrupt it with Ctrl-C.
---
## Looking at the network setup in the container
We can look at the list of network interfaces with `ifconfig`, `ip a`, or `ip l`:
.small[
```bash
/ # ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
18: eth0@if19: <BROADCAST,MULTICAST,UP,LOWER_UP,M-DOWN> mtu 1500 qdisc noqueue state UP
link/ether 02:42:ac:11:00:02 brd ff:ff:ff:ff:ff:ff
inet 172.17.0.2/16 brd 172.17.255.255 scope global eth0
valid_lft forever preferred_lft forever
20: eth1@if21: <BROADCAST,MULTICAST,UP,LOWER_UP,M-DOWN> mtu 1500 qdisc noqueue state UP
link/ether 02:42:ac:14:00:04 brd ff:ff:ff:ff:ff:ff
inet 172.20.0.4/16 brd 172.20.255.255 scope global eth1
valid_lft forever preferred_lft forever
/ #
```
]
Each network connection is materialized with a virtual network interface.
As we can see, we can be connected to multiple networks at the same time.
---
## Disconnecting from a network
* Let's try the symmetrical command to disconnect the container:
```bash
$ docker network disconnect dev <container_id>
```
* From now on, if we try to ping `es`, it will not resolve:
```bash
/ # ping es
ping: bad address 'es'
```
* Trying to ping the IP address directly won't work either:
```bash
/ # ping 172.20.0.3
... (nothing happens until we interrupt it with Ctrl-C)
```
---
class: extra-details
## Network aliases are scoped per network
* Each network has its own set of network aliases.
* We saw this earlier: `es` resolves to different addresses in `dev` and `prod`.
* If we are connected to multiple networks, the resolver looks up names in each of them
(as of Docker Engine 18.03, it is the connection order) and stops as soon as the name
is found.
* Therefore, if we are connected to both `dev` and `prod`, resolving `es` will **not**
give us the addresses of all the `es` services; but only the ones in `dev` or `prod`.
* However, we can lookup `es.dev` or `es.prod` if we need to.
---
class: extra-details
## Finding out about our networks and names
* We can do reverse DNS lookups on containers' IP addresses.
* If the IP address belongs to a network (other than the default bridge), the result will be:
```
name-or-first-alias-or-container-id.network-name
```
* Example:
.small[
```bash
$ docker run -ti --net prod --net-alias hello alpine
/ # apk add --no-cache drill
...
OK: 5 MiB in 13 packages
/ # ifconfig
eth0 Link encap:Ethernet HWaddr 02:42:AC:15:00:03
inet addr:`172.21.0.3` Bcast:172.21.255.255 Mask:255.255.0.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
...
/ # drill -t ptr `3.0.21.172`.in-addr.arpa
...
;; ANSWER SECTION:
3.0.21.172.in-addr.arpa. 600 IN PTR `hello.prod`.
...
```
]
---
class: extra-details
## Building with a custom network
* We can build a Dockerfile with a custom network with `docker build --network NAME`.
* This can be used to check that a build doesn't access the network.
(But keep in mind that most Dockerfiles will fail,
<br/>because they need to install remote packages and dependencies!)
* This may be used to access an internal package repository.
(But try to use a multi-stage build instead, if possible!)

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@@ -1,27 +1,26 @@
title: |
Docker
Intensive
Course
Introduction
to Containers
#chat: "[Slack](https://dockercommunity.slack.com/messages/C7GKACWDV)"
chat: "[Slack](https://dockercommunity.slack.com/messages/C7GKACWDV)"
#chat: "[Gitter](https://gitter.im/jpetazzo/workshop-yyyymmdd-city)"
chat: ""
gitrepo: github.com/jpetazzo/container.training
slides: https://2020-03-qcon.container.training/
slides: http://container.training/
slidenumberprefix: "@jpetazzo &mdash; "
#slidenumberprefix: "#SomeHashTag &mdash; "
exclude:
- self-paced
- chat-room
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
-
#- containers/Docker_Overview.md
@@ -44,8 +43,8 @@ chapters:
-
- containers/Container_Networking_Basics.md
#- containers/Network_Drivers.md
#- containers/Container_Network_Model.md
- containers/Local_Development_Workflow.md
- containers/Container_Network_Model.md
- containers/Compose_For_Dev_Stacks.md
- containers/Exercise_Composefile.md
-

View File

@@ -0,0 +1,69 @@
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 &mdash; "
exclude:
- in-person
chapters:
- shared/title.md
# - shared/logistics.md
- 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
- containers/Training_Environment.md
- containers/Installing_Docker.md
- containers/First_Containers.md
- containers/Background_Containers.md
- containers/Start_And_Attach.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/Multi_Stage_Builds.md
- containers/Publishing_To_Docker_Hub.md
- containers/Dockerfile_Tips.md
- containers/Exercise_Dockerfile_Advanced.md
- - containers/Naming_And_Inspecting.md
- containers/Labels.md
- containers/Getting_Inside.md
- - containers/Container_Networking_Basics.md
- containers/Network_Drivers.md
- containers/Container_Network_Model.md
#- containers/Connecting_Containers_With_Links.md
- containers/Ambassadors.md
- - containers/Local_Development_Workflow.md
- containers/Windows_Containers.md
- containers/Working_With_Volumes.md
- containers/Compose_For_Dev_Stacks.md
- containers/Exercise_Composefile.md
- containers/Docker_Machine.md
- - containers/Advanced_Dockerfiles.md
- containers/Init_Systems.md
- containers/Application_Configuration.md
- containers/Logging.md
- containers/Resource_Limits.md
- - containers/Namespaces_Cgroups.md
- containers/Copy_On_Write.md
#- containers/Containers_From_Scratch.md
- - containers/Container_Engines.md
- containers/Pods_Anatomy.md
- containers/Ecosystem.md
- containers/Orchestration_Overview.md
- shared/thankyou.md
- containers/links.md

77
slides/intro-twodays.yml Normal file
View File

@@ -0,0 +1,77 @@
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 &mdash; "
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

View File

@@ -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 run web --image=nginx`),
- When we create a Deployment (e.g. with `kubectl create deployment web --image=nginx`),
- we create a Deployment object

View File

@@ -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 run web --image=nginx --replicas=3
kubectl create deployment web --image=nginx
```
---
class: pic
![](images/kubectl-run-slideshow/01.svg)
![](images/kubectl-create-deployment-slideshow/01.svg)
---
class: pic
![](images/kubectl-run-slideshow/02.svg)
![](images/kubectl-create-deployment-slideshow/02.svg)
---
class: pic
![](images/kubectl-run-slideshow/03.svg)
![](images/kubectl-create-deployment-slideshow/03.svg)
---
class: pic
![](images/kubectl-run-slideshow/04.svg)
![](images/kubectl-create-deployment-slideshow/04.svg)
---
class: pic
![](images/kubectl-run-slideshow/05.svg)
![](images/kubectl-create-deployment-slideshow/05.svg)
---
class: pic
![](images/kubectl-run-slideshow/06.svg)
![](images/kubectl-create-deployment-slideshow/06.svg)
---
class: pic
![](images/kubectl-run-slideshow/07.svg)
![](images/kubectl-create-deployment-slideshow/07.svg)
---
class: pic
![](images/kubectl-run-slideshow/08.svg)
![](images/kubectl-create-deployment-slideshow/08.svg)
---
class: pic
![](images/kubectl-run-slideshow/09.svg)
![](images/kubectl-create-deployment-slideshow/09.svg)
---
class: pic
![](images/kubectl-run-slideshow/10.svg)
![](images/kubectl-create-deployment-slideshow/10.svg)
---
class: pic
![](images/kubectl-run-slideshow/11.svg)
![](images/kubectl-create-deployment-slideshow/11.svg)
---
class: pic
![](images/kubectl-run-slideshow/12.svg)
![](images/kubectl-create-deployment-slideshow/12.svg)
---
class: pic
![](images/kubectl-run-slideshow/13.svg)
![](images/kubectl-create-deployment-slideshow/13.svg)
---
class: pic
![](images/kubectl-run-slideshow/14.svg)
![](images/kubectl-create-deployment-slideshow/14.svg)
---
class: pic
![](images/kubectl-run-slideshow/15.svg)
![](images/kubectl-create-deployment-slideshow/15.svg)
---
class: pic
![](images/kubectl-run-slideshow/16.svg)
![](images/kubectl-create-deployment-slideshow/16.svg)
---
class: pic
![](images/kubectl-run-slideshow/17.svg)
![](images/kubectl-create-deployment-slideshow/17.svg)
---
class: pic
![](images/kubectl-run-slideshow/18.svg)
![](images/kubectl-create-deployment-slideshow/18.svg)
---
class: pic
![](images/kubectl-run-slideshow/19.svg)
![](images/kubectl-create-deployment-slideshow/19.svg)

View File

@@ -6,7 +6,7 @@
- Our goal is to build a minimal cluster allowing us to:
- create a Deployment (with `kubectl run` or `kubectl create deployment`)
- create a Deployment (with `kubectl create deployment`)
- expose it with a Service
- connect to that service

View File

@@ -172,7 +172,7 @@ Note: we don't need to specify `--validate=false` here.
## Advantage of YAML
- Using YAML (instead of `kubectl run`/`create`/etc.) allows to be *declarative*
- Using YAML (instead of `kubectl create <kind>`) 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 run`/`create`/`expose`/etc.
- Get started with `kubectl create deployment` and `kubectl expose`
- Dump the YAML with `kubectl get -o yaml`

View File

@@ -151,9 +151,9 @@
## Creating a deployment for our HTTP server
- We *could* do `kubectl run httpenv --image=jpetazzo/httpenv` ...
- We will create a deployment with `kubectl create deployment`
- But since `kubectl run` is being deprecated, let's see how to use `kubectl create` instead
- Then we will scale it with `kubectl scale`
.exercise[

View File

@@ -10,14 +10,47 @@
- In that container in the pod, we are going to run a simple `ping` command
- Then we are going to start additional copies of the pod
--
- 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")
---
## 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:
@@ -25,90 +58,289 @@
kubectl run pingpong --image alpine ping 127.0.0.1
```
<!-- ```hide kubectl wait deploy/pingpong --for condition=available``` -->
<!-- ```hide kubectl wait pod --selector=run=pingpong --for condition=ready``` -->
]
--
---
(Starting with Kubernetes 1.12, we get a message telling us that
`kubectl run` is deprecated. Let's ignore it for now.)
## 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?
---
## Behind the scenes of `kubectl run`
## Show me all you got!
- Let's look at the resources that were created by `kubectl run`
- What resources were created by `kubectl run`?
.exercise[
- List most resource types:
- Let's ask Kubernetes to show us *all* the resources:
```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
--
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)
- (yeah right ... too soon!)
Note: as of 1.10.1, resource types are displayed in more detail.
--
- 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`)
---
## What are these different things?
## Creating a Deployment running `ping`
- A *deployment* is a high-level construct
- Let's create a Deployment named `pingpong`
- allows scaling, rolling updates, rollbacks
- It will use the image `jpetazzo/ping`
- multiple deployments can be used together to implement a
[canary deployment](https://kubernetes.io/docs/concepts/cluster-administration/manage-deployment/#canary-deployments)
.exercise[
- delegates pods management to *replica sets*
- Create the Deployment:
```bash
kubectl create deployment pingpong --image=jpetazzo/ping
```
- A *replica set* is a low-level construct
- Check the resources that were created:
```bash
kubectl get all
```
- makes sure that a given number of identical pods are running
<!-- ```hide kubectl wait pod --selector=run=pingpong --for condition=ready ``` -->
- 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
]
---
@@ -294,132 +526,6 @@ 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
@@ -428,13 +534,15 @@ Let's leave `kubectl logs` running while we keep exploring.
- A selector is a logic expression using *labels*
- Conveniently, when you `kubectl run somename`, the associated objects have a `run=somename` label
- 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`)
.exercise[
- View the last line of log from all pods with the `run=pingpong` label:
- View the last line of log from all pods with the `app=pingpong` label:
```bash
kubectl logs -l run=pingpong --tail 1
kubectl logs -l app=pingpong --tail 1
```
]
@@ -449,7 +557,7 @@ Let's leave `kubectl logs` running while we keep exploring.
- Combine `-l` and `-f` flags:
```bash
kubectl logs -l run=pingpong --tail 1 -f
kubectl logs -l app=pingpong --tail 1 -f
```
<!--
@@ -480,7 +588,7 @@ class: extra-details
- Stream the logs:
```bash
kubectl logs -l run=pingpong --tail 1 -f
kubectl logs -l app=pingpong --tail 1 -f
```
<!-- ```wait error:``` -->
@@ -586,3 +694,195 @@ 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!

View File

@@ -132,15 +132,15 @@ Exactly what we need!
- Everything created with `kubectl run` has a label `run`
- We can use that property to view the logs of all the pods created with `kubectl run`
- Everything created with `kubectl create deployment` has a label `app`
- Similarly, 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 create deployment`
.exercise[
- View the logs for all the things started with `kubectl run`:
- View the logs for all the things started with `kubectl create deployment`:
```bash
stern -l run
stern -l app
```
<!--

View File

@@ -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 run` / `kubectl expose`
- It is very simple to deploy with `kubectl create deployment` / `kubectl expose`
- We can unlock more features by writing YAML and using `kubectl apply`

View File

@@ -30,8 +30,6 @@
- Go to @@SLIDES@@ to view these slides
- Join the chat room: @@CHAT@@
<!-- ```open @@SLIDES@@``` -->
]

View File

@@ -1,8 +1,8 @@
## Versions installed
- Kubernetes 1.17.2
- Docker Engine 19.03.5
- Docker Compose 1.24.1
- Kubernetes 1.18.0
- Docker Engine 19.03.8
- Docker Compose 1.25.4
<!-- ##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-1.15.md#dependencies)
- Kubernetes 1.15 validates Docker Engine versions [up to 18.09](https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/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-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/CHANGELOG-1.13.md#external-dependencies)
- Is it a problem if I use Kubernetes with a "too recent" Docker Engine?

53
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View File

@@ -0,0 +1,53 @@
title: |
Kubernetes
for Admins and Ops
#chat: "[Slack](https://dockercommunity.slack.com/messages/C7GKACWDV)"
#chat: "[Gitter](https://gitter.im/jpetazzo/workshop-yyyymmdd-city)"
chat: "In person!"
gitrepo: github.com/jpetazzo/container.training
slides: http://container.training/
#slidenumberprefix: "#SomeHashTag &mdash; "
exclude:
- self-paced
- static-pods-exercise
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
-
- k8s/prereqs-admin.md
- k8s/architecture.md
- k8s/deploymentslideshow.md
- k8s/dmuc.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/links.md
- shared/thankyou.md

74
slides/kadm-twodays.yml Normal file
View File

@@ -0,0 +1,74 @@
title: |
Kubernetes
for administrators
and operators
#chat: "[Slack](https://dockercommunity.slack.com/messages/C7GKACWDV)"
#chat: "[Gitter](https://gitter.im/jpetazzo/workshop-yyyymmdd-city)"
chat: "In person!"
gitrepo: github.com/jpetazzo/container.training
slides: http://container.training/
#slidenumberprefix: "#SomeHashTag &mdash; "
exclude:
- self-paced
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
# DAY 1
- - k8s/prereqs-admin.md
- k8s/architecture.md
- k8s/deploymentslideshow.md
- k8s/dmuc.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/staticpods.md
- - k8s/cluster-backup.md
- k8s/cloud-controller-manager.md
- k8s/healthchecks.md
- k8s/healthchecks-more.md
# DAY 2
- - k8s/kubercoins.md
- k8s/logs-cli.md
- k8s/logs-centralized.md
- k8s/authn-authz.md
- k8s/csr-api.md
- - k8s/openid-connect.md
- k8s/control-plane-auth.md
###- k8s/bootstrap.md
- k8s/netpol.md
- k8s/podsecuritypolicy.md
- - k8s/resource-limits.md
- k8s/metrics-server.md
- k8s/cluster-sizing.md
- k8s/horizontal-pod-autoscaler.md
- - k8s/prometheus.md
- k8s/extending-api.md
- k8s/operators.md
###- k8s/operators-design.md
# CONCLUSION
- - k8s/lastwords.md
- k8s/links.md
- shared/thankyou.md
- |
# (All content after this slide is bonus material)
# EXTRA
- - k8s/volumes.md
- k8s/configuration.md
- k8s/statefulsets.md
- k8s/local-persistent-volumes.md
- k8s/portworx.md

View File

@@ -1,31 +1,31 @@
title: |
Kubernetes
Intensive
Course
Deploying and Scaling Microservices
with Kubernetes
#chat: "[Slack](https://dockercommunity.slack.com/messages/C7GKACWDV)"
#chat: "[Gitter](https://gitter.im/jpetazzo/workshop-yyyymmdd-city)"
chat: ""
chat: "In person!"
gitrepo: github.com/jpetazzo/container.training
slides: https://2020-03-qcon.container.training/
slides: http://container.training/
slidenumberprefix: "@jpetazzo &mdash; "
#slidenumberprefix: "#SomeHashTag &mdash; "
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
- shared/webssh.md
#- shared/webssh.md
- shared/connecting.md
#- k8s/versions-k8s.md
- shared/sampleapp.md
@@ -49,7 +49,7 @@ chapters:
#- k8s/exercise-wordsmith.md
-
- k8s/yamldeploy.md
#- k8s/setup-k8s.md
- k8s/setup-k8s.md
#- k8s/dashboard.md
#- k8s/kubectlscale.md
- k8s/scalingdockercoins.md

75
slides/kube-halfday.yml Normal file
View File

@@ -0,0 +1,75 @@
title: |
Kubernetes 101
#chat: "[Slack](https://dockercommunity.slack.com/messages/C7GKACWDV)"
#chat: "[Gitter](https://gitter.im/jpetazzo/training-20180413-paris)"
chat: "In person!"
gitrepo: github.com/jpetazzo/container.training
slides: http://container.training/
#slidenumberprefix: "#SomeHashTag &mdash; "
exclude:
- self-paced
chapters:
- shared/title.md
#- logistics.md
# Bridget-specific; others use logistics.md
- 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
- shared/connecting.md
- k8s/versions-k8s.md
- shared/sampleapp.md
# Bridget doesn't go into as much depth with compose
#- shared/composescale.md
#- shared/hastyconclusions.md
- shared/composedown.md
- k8s/concepts-k8s.md
- shared/declarative.md
- k8s/declarative.md
- k8s/kubenet.md
- k8s/kubectlget.md
- k8s/setup-k8s.md
- - k8s/kubectlrun.md
- k8s/deploymentslideshow.md
- k8s/kubectlexpose.md
- k8s/shippingimages.md
#- k8s/buildshiprun-selfhosted.md
- k8s/buildshiprun-dockerhub.md
- k8s/ourapponkube.md
#- k8s/localkubeconfig.md
#- k8s/accessinternal.md
#- k8s/kubectlproxy.md
- - k8s/dashboard.md
#- k8s/kubectlscale.md
- k8s/scalingdockercoins.md
- shared/hastyconclusions.md
- k8s/daemonset.md
- k8s/rollout.md
#- k8s/record.md
- - k8s/logs-cli.md
# Bridget hasn't added EFK yet
#- k8s/logs-centralized.md
- k8s/namespaces.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/kustomize.md
#- k8s/netpol.md
- k8s/whatsnext.md
# - k8s/links.md
# Bridget-specific
- k8s/links-bridget.md
- shared/thankyou.md

123
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View File

@@ -0,0 +1,123 @@
title: |
Deploying and Scaling Microservices
with Docker and Kubernetes
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 &mdash; "
exclude:
- in-person
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
#- shared/webssh.md
- shared/connecting.md
- k8s/versions-k8s.md
- shared/sampleapp.md
#- shared/composescale.md
#- shared/hastyconclusions.md
- shared/composedown.md
- k8s/concepts-k8s.md
-
- k8s/kubectlget.md
- k8s/kubectlrun.md
- k8s/logs-cli.md
- shared/declarative.md
- k8s/declarative.md
- k8s/deploymentslideshow.md
-
- k8s/kubenet.md
- k8s/kubectlexpose.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
- k8s/dashboard.md
#- k8s/kubectlscale.md
- k8s/scalingdockercoins.md
- shared/hastyconclusions.md
- k8s/daemonset.md
- k8s/dryrun.md
#- k8s/exercise-yaml.md
-
- k8s/rollout.md
- k8s/healthchecks.md
- k8s/healthchecks-more.md
- k8s/record.md
-
- k8s/namespaces.md
- k8s/localkubeconfig.md
- k8s/accessinternal.md
- k8s/kubectlproxy.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/netpol.md
- k8s/authn-authz.md
- k8s/podsecuritypolicy.md
- k8s/csr-api.md
- k8s/openid-connect.md
- k8s/control-plane-auth.md
-
- k8s/volumes.md
#- k8s/exercise-configmap.md
- k8s/build-with-docker.md
- k8s/build-with-kaniko.md
-
- k8s/configuration.md
- k8s/statefulsets.md
- k8s/local-persistent-volumes.md
- k8s/portworx.md
-
- k8s/logs-centralized.md
- k8s/prometheus.md
- k8s/resource-limits.md
- k8s/metrics-server.md
- k8s/cluster-sizing.md
- k8s/horizontal-pod-autoscaler.md
-
- k8s/extending-api.md
- k8s/operators.md
- k8s/operators-design.md
- k8s/owners-and-dependents.md
-
- k8s/dmuc.md
- k8s/multinode.md
- k8s/cni.md
- k8s/apilb.md
- k8s/staticpods.md
-
- k8s/cluster-upgrade.md
- k8s/cluster-backup.md
- k8s/cloud-controller-manager.md
- k8s/gitworkflows.md
-
- k8s/lastwords.md
- k8s/links.md
- shared/thankyou.md

106
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@@ -0,0 +1,106 @@
title: |
Deploying and Scaling Microservices
with Kubernetes
#chat: "[Slack](https://dockercommunity.slack.com/messages/C7GKACWDV)"
#chat: "[Gitter](https://gitter.im/jpetazzo/workshop-yyyymmdd-city)"
chat: "In person!"
gitrepo: github.com/jpetazzo/container.training
slides: http://container.training/
#slidenumberprefix: "#SomeHashTag &mdash; "
exclude:
- self-paced
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
#- shared/webssh.md
- shared/connecting.md
#- k8s/versions-k8s.md
- shared/sampleapp.md
#- shared/composescale.md
#- shared/hastyconclusions.md
- shared/composedown.md
- k8s/concepts-k8s.md
- k8s/kubectlget.md
-
- k8s/kubectlrun.md
- k8s/logs-cli.md
- shared/declarative.md
- k8s/declarative.md
- k8s/deploymentslideshow.md
- k8s/kubenet.md
- k8s/kubectlexpose.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
- k8s/dashboard.md
#- k8s/kubectlscale.md
- k8s/scalingdockercoins.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-more.md
- k8s/record.md
-
- k8s/namespaces.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/netpol.md
- k8s/authn-authz.md
#- k8s/csr-api.md
#- 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
- k8s/logs-centralized.md
- k8s/prometheus.md
-
- k8s/statefulsets.md
- k8s/local-persistent-volumes.md
- k8s/portworx.md
#- k8s/extending-api.md
#- k8s/operators.md
#- k8s/operators-design.md
#- k8s/staticpods.md
#- k8s/owners-and-dependents.md
#- k8s/gitworkflows.md
-
- k8s/whatsnext.md
- k8s/lastwords.md
- k8s/links.md
- shared/thankyou.md

View File

@@ -1,13 +1,35 @@
## Intros
- Hello! I'm Jérôme ([@jpetazzo](https://twitter.com/jpetazzo))
- This slide should be customized by the tutorial instructor(s).
- The workshop will run from 9am to 4pm
- Hello! We are:
- There will be a lunch break at noon
- .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!)
- Feel free to interrupt for questions at any time
- *Especially when you see full screen container pictures!*
- Live feedback, questions, help: @@CHAT@@

View File

@@ -1,10 +0,0 @@
<ul>
<li>
Thursday:
<a href="intro-fullday.yml.html">Docker Intensive Course</a>
</li>
<li>
Friday:
<a href="kube-fullday.yml.html">Kubernetes Intensive Course</a>
</li>
</ul>

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@@ -73,19 +73,3 @@ 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!

View File

@@ -0,0 +1,11 @@
## 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!

View File

@@ -0,0 +1,68 @@
## 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"

View File

@@ -11,13 +11,12 @@ class: title, in-person
@@TITLE@@<br/></br>
.footnote[
WiFi: **QConLondon2020**<br/>
Password: **software**
**Slides[:](https://www.youtube.com/watch?v=h16zyxiwDLY) @@SLIDES@@**
]
<!--
WiFi: **Something**<br/>
Password: **Something**
**Be kind to the WiFi!**<br/>
*Use the 5G network.*

69
slides/swarm-fullday.yml Normal file
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@@ -0,0 +1,69 @@
title: |
Container Orchestration
with Docker and Swarm
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 &mdash; "
exclude:
- self-paced
- snap
- btp-auto
- benchmarking
- elk-manual
- prom-manual
chapters:
- shared/title.md
- 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
- swarm/versions.md
- shared/sampleapp.md
- shared/composescale.md
- shared/hastyconclusions.md
- shared/composedown.md
- swarm/swarmkit.md
- shared/declarative.md
- swarm/swarmmode.md
- swarm/creatingswarm.md
#- swarm/machine.md
- swarm/morenodes.md
- - swarm/firstservice.md
- swarm/ourapponswarm.md
- swarm/hostingregistry.md
- swarm/testingregistry.md
- swarm/btp-manual.md
- swarm/swarmready.md
- swarm/stacks.md
- swarm/cicd.md
- swarm/updatingservices.md
- swarm/rollingupdates.md
- swarm/healthchecks.md
- - swarm/operatingswarm.md
- swarm/netshoot.md
- swarm/ipsec.md
- swarm/swarmtools.md
- swarm/security.md
- swarm/secrets.md
- swarm/encryptionatrest.md
- swarm/leastprivilege.md
- swarm/apiscope.md
- - swarm/logging.md
- swarm/metrics.md
- swarm/gui.md
- swarm/stateful.md
- swarm/extratips.md
- shared/thankyou.md
- swarm/links.md

68
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@@ -0,0 +1,68 @@
title: |
Container Orchestration
with Docker and Swarm
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 &mdash; "
exclude:
- self-paced
- snap
- btp-manual
- benchmarking
- elk-manual
- prom-manual
chapters:
- shared/title.md
- 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
- swarm/versions.md
- shared/sampleapp.md
- shared/composescale.md
- shared/hastyconclusions.md
- shared/composedown.md
- swarm/swarmkit.md
- shared/declarative.md
- swarm/swarmmode.md
- swarm/creatingswarm.md
#- swarm/machine.md
- swarm/morenodes.md
- - swarm/firstservice.md
- swarm/ourapponswarm.md
#- swarm/hostingregistry.md
#- swarm/testingregistry.md
#- swarm/btp-manual.md
#- swarm/swarmready.md
- swarm/stacks.md
- swarm/cicd.md
- swarm/updatingservices.md
#- swarm/rollingupdates.md
#- swarm/healthchecks.md
- - swarm/operatingswarm.md
#- swarm/netshoot.md
#- swarm/ipsec.md
#- swarm/swarmtools.md
- swarm/security.md
#- swarm/secrets.md
#- swarm/encryptionatrest.md
- swarm/leastprivilege.md
- swarm/apiscope.md
- swarm/logging.md
- swarm/metrics.md
#- swarm/stateful.md
#- swarm/extratips.md
- shared/thankyou.md
- swarm/links.md

View File

@@ -0,0 +1,77 @@
title: |
Container Orchestration
with Docker and Swarm
chat: "[Slack](https://dockercommunity.slack.com/messages/C7GKACWDV)"
gitrepo: github.com/jpetazzo/container.training
slides: http://container.training/
#slidenumberprefix: "#SomeHashTag &mdash; "
exclude:
- in-person
- btp-auto
chapters:
- shared/title.md
#- 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
- swarm/versions.md
- |
name: part-1
class: title, self-paced
Part 1
- shared/sampleapp.md
- shared/composescale.md
- shared/hastyconclusions.md
- shared/composedown.md
- swarm/swarmkit.md
- shared/declarative.md
- swarm/swarmmode.md
- swarm/creatingswarm.md
#- swarm/machine.md
- swarm/morenodes.md
- - swarm/firstservice.md
- swarm/ourapponswarm.md
- swarm/hostingregistry.md
- swarm/testingregistry.md
- swarm/btp-manual.md
- swarm/swarmready.md
- swarm/stacks.md
- swarm/cicd.md
- |
name: part-2
class: title, self-paced
Part 2
- - swarm/operatingswarm.md
- swarm/netshoot.md
- swarm/swarmnbt.md
- swarm/ipsec.md
- swarm/updatingservices.md
- swarm/rollingupdates.md
- swarm/healthchecks.md
- swarm/nodeinfo.md
- swarm/swarmtools.md
- - swarm/security.md
- swarm/secrets.md
- swarm/encryptionatrest.md
- swarm/leastprivilege.md
- swarm/apiscope.md
- swarm/logging.md
- swarm/metrics.md
- swarm/stateful.md
- swarm/extratips.md
- shared/thankyou.md
- swarm/links.md

74
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@@ -0,0 +1,74 @@
title: |
Container Orchestration
with Docker and Swarm
chat: "[Slack](https://dockercommunity.slack.com/messages/C7GKACWDV)"
gitrepo: github.com/jpetazzo/container.training
slides: http://container.training/
#slidenumberprefix: "#SomeHashTag &mdash; "
exclude:
- in-person
- btp-auto
chapters:
- shared/title.md
#- shared/logistics.md
- swarm/intro.md
- shared/about-slides.md
- shared/toc.md
- - shared/prereqs.md
- shared/connecting.md
- swarm/versions.md
- |
name: part-1
class: title, self-paced
Part 1
- shared/sampleapp.md
- shared/composescale.md
- shared/hastyconclusions.md
- shared/composedown.md
- swarm/swarmkit.md
- shared/declarative.md
- swarm/swarmmode.md
- swarm/creatingswarm.md
#- swarm/machine.md
- swarm/morenodes.md
- - swarm/firstservice.md
- swarm/ourapponswarm.md
- swarm/hostingregistry.md
- swarm/testingregistry.md
- swarm/btp-manual.md
- swarm/swarmready.md
- swarm/stacks.md
- |
name: part-2
class: title, self-paced
Part 2
- - swarm/operatingswarm.md
#- swarm/netshoot.md
#- swarm/swarmnbt.md
- swarm/ipsec.md
- swarm/updatingservices.md
- swarm/rollingupdates.md
#- swarm/healthchecks.md
- swarm/nodeinfo.md
- swarm/swarmtools.md
- - swarm/security.md
- swarm/secrets.md
- swarm/encryptionatrest.md
- swarm/leastprivilege.md
- swarm/apiscope.md
#- swarm/logging.md
#- swarm/metrics.md
- swarm/stateful.md
- swarm/extratips.md
- shared/thankyou.md
- swarm/links.md