58 lines
1.3 KiB
Markdown
58 lines
1.3 KiB
Markdown
|
# Argo Rollouts - Blue/Green
|
||
|
|
|
||
|
|
## Requirements
|
||
|
|
|
||
|
|
1. Running Kubernetes cluster
|
||
|
|
2. Argo Rollouts CLI
|
||
|
|
3. Deployed app in specific version
|
||
|
|
|
||
|
|
## Objectives
|
||
|
|
|
||
|
|
1. Install Argo Rollouts controller
|
||
|
|
2. Write a rollout manifest that use blue/green deployment and apply it
|
||
|
|
1. Set it to 3 replicas
|
||
|
|
2. Disable auto-promotions
|
||
|
|
3. Check the rollout list
|
||
|
|
4. Rollout a new version of your app in any way you prefer
|
||
|
|
1. Check the status of the rollout
|
||
|
|
|
||
|
|
## Solution
|
||
|
|
|
||
|
|
Installation:
|
||
|
|
|
||
|
|
1. `kubectl create namespace argo-rollouts`
|
||
|
|
1. `kubectl apply -n argo-rollouts -f https://github.com/argoproj/argo-rollouts/releases/latest/download/install.yaml`
|
||
|
|
|
||
|
|
2. Rollout resource:
|
||
|
|
|
||
|
|
```
|
||
|
|
---
|
||
|
|
apiVersion: argoproj.io/v1alpha1
|
||
|
|
kind: Rollout
|
||
|
|
metadata:
|
||
|
|
name: some-app
|
||
|
|
spec:
|
||
|
|
replicas: 3
|
||
|
|
strategy:
|
||
|
|
blueGreen:
|
||
|
|
autoPromotionEnabled: false
|
||
|
|
selector:
|
||
|
|
matchLabels:
|
||
|
|
app: some-web-app
|
||
|
|
template:
|
||
|
|
metadata:
|
||
|
|
labels:
|
||
|
|
app: some-web-app
|
||
|
|
spec:
|
||
|
|
containers:
|
||
|
|
- name: web-app
|
||
|
|
image: some/registry/and/image:v1.0
|
||
|
|
ports:
|
||
|
|
- name: http
|
||
|
|
containerPort: 8080
|
||
|
|
protocol: TCP
|
||
|
|
```
|
||
|
|
|
||
|
|
3. `kubectl argo rollouts list rollouts`
|
||
|
|
4. `kubectl argo rollouts set image SOME-APP web-app=some/registry/and/image:v2.0`
|
||
|
|
1. `kubectl argo rollouts get rollout some-app --watch`
|