Continuous Deployment

calendarJul 20, 2023 · 1 min read · continuous deployment github actions devops yaml  ·
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Yesterday I explored using GitHub Actions workflows for continuous deployment. I used a pipeline that takes code pushed to GitHub all the way to production, deployed on a Kubernetes cluster on Azure cloud.

The deployment workflow is written in YAML, and in it there 4 levels:

  • workflow
    • jobs
      • steps
        • commands

Here is an example workflow, from Chapter 8 of the book Bootstrapping Microservices, by Ashley Davis.

 1name: Deploy microservice
 2
 3on:
 4  push: 
 5    branches:
 6      - main
 7  workflow_dispatch: 
 8
 9jobs:
10
11  deploy:
12    runs-on: ubuntu-latest
13    
14    env:
15      VERSION: ${{ github.sha }}
16      CONTAINER_REGISTRY: ${{ secrets.CONTAINER_REGISTRY }}
17      REGISTRY_UN: ${{ secrets.REGISTRY_UN }}
18      REGISTRY_PW: ${{ secrets.REGISTRY_PW  }}
19
20    steps:
21      
22      - uses: actions/checkout@v3
23
24      - name: Build
25        run: ./scripts/build-image.sh
26
27      - name: Publish
28        run: ./scripts/push-image.sh
29
30      - uses: tale/kubectl-action@v1
31        with:
32          base64-kube-config: ${{ secrets.KUBE_CONFIG }}
33          kubectl-version: v1.26.0
34      
35      - name: Deploy
36        run: ./scripts/deploy.sh