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Update prom slides for QCON preload

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This commit is contained in:
Jerome Petazzoni
2018-11-07 23:08:51 -06:00
parent d35d186249
commit d4c338c62c
1 changed files with 14 additions and 20 deletions
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34
slides/k8s/prometheus.md
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@@ -151,7 +151,7 @@ scrape_configs:
## Running Prometheus on our cluster
We need to:
We would need to:
- Run the Prometheus server in a pod
@@ -171,19 +171,21 @@ We need to:
## Helm Charts to the rescue
- To make our lives easier, we are going to use a Helm Chart
- To make our lives easier, we could use a Helm Chart
- The Helm Chart will take care of all the steps explained above
- The Helm Chart would take care of all the steps explained above
(including some extra features that we don't need, but won't hurt)
- In fact, Prometheus has been pre-installed on our clusters with Helm
(it was pre-installed so that it would be populated with metrics by now)
---
## Step 1: install Helm
## Step 1: if we had to install Helm
- If we already installed Helm earlier, these commands won't break anything
.exercice[
- Note that if Helm is already installed, these commands won't break anything
- Install Tiller (Helm's server-side component) on our cluster:
```bash
@@ -196,27 +198,17 @@ We need to:
--clusterrole=cluster-admin --serviceaccount=kube-system:default
```
]
---
## Step 2: install Prometheus
## Step 2: if we had to install Prometheus
- Skip this if we already installed Prometheus earlier
(in doubt, check with `helm list`)
.exercice[
- Install Prometheus on our cluster:
- This is how we would use Helm to deploy Prometheus on the cluster:
```bash
helm install stable/prometheus \
--set server.service.type=NodePort \
--set server.persistentVolume.enabled=false
```
]
The provided flags:
- expose the server web UI (and API) on a NodePort
@@ -235,11 +227,13 @@ The provided flags:
- Figure out the NodePort that was allocated to the Prometheus server:
```bash
kubectl get svc | grep prometheus-server
kubectl get svc -n kube-system | grep prometheus-server
```
- With your browser, connect to that port
(spoiler alert: it should be 30090)
]
---