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Deploying to Azure Kubernetes Service

In this article

You can deploy your project to Azure Kubernetes Service (AKS) as part of your continuous deployment (CD) workflows.

Note: GitHub-hosted runners are not currently supported on GitHub Enterprise Server. You can see more information about planned future support on the GitHub public roadmap.

Introduction

This guide explains how to use GitHub Actions to build and deploy a project to Azure Kubernetes Service.

Prerequisites

Before creating your GitHub Actions workflow, you will first need to complete the following setup steps:

  1. Create a target AKS cluster and an Azure Container Registry (ACR). For more information, see "Quickstart: Deploy an AKS cluster by using the Azure portal - Azure Kubernetes Service" and "Quickstart - Create registry in portal - Azure Container Registry" in the Azure documentation.

  2. Create a secret called AZURE_CREDENTIALS to store your Azure credentials. For more information about how to find this information and structure the secret, see the Azure/login action documentation.

Creating the workflow

Once you've completed the prerequisites, you can proceed with creating the workflow.

The following example workflow demonstrates how to build and deploy a project to Azure Kubernetes Service when code is pushed to your repository.

Under the workflow env key, change the following values:

  • AZURE_CONTAINER_REGISTRY to the name of your container registry
  • PROJECT_NAME to the name of your project
  • RESOURCE_GROUP to the resource group containing your AKS cluster
  • CLUSTER_NAME to the name of your AKS cluster

This workflow uses the helm render engine for the azure/k8s-bake action. If you will use the helm render engine, change the value of CHART_PATH to the path to your helm file. Change CHART_OVERRIDE_PATH to an array of override file paths. If you use a different render engine, update the input parameters sent to the azure/k8s-bake action.

YAML
# This workflow uses actions that are not certified by GitHub.
# They are provided by a third-party and are governed by
# separate terms of service, privacy policy, and support
# documentation.

# GitHub recommends pinning actions to a commit SHA.
# To get a newer version, you will need to update the SHA.
# You can also reference a tag or branch, but the action may change without warning.

name: Build and deploy to Azure Kubernetes Service

env:
  AZURE_CONTAINER_REGISTRY: MY_REGISTRY_NAME # set this to the name of your container registry
  PROJECT_NAME: MY_PROJECT_NAME              # set this to your project's name
  RESOURCE_GROUP: MY_RESOURCE_GROUP          # set this to the resource group containing your AKS cluster
  CLUSTER_NAME: MY_CLUSTER_NAME              # set this to the name of your AKS cluster
  REGISTRY_URL: MY_REGISTRY_URL              # set this to the URL of your registry
  # If you bake using helm:
  CHART_PATH: MY_HELM_FILE                   # set this to the path to your helm file
  CHART_OVERRIDE_PATH: MY_OVERRIDE_FILES     # set this to an array of override file paths

on: [push]

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2

    - name: Azure Login
      uses: azure/login@14a755a4e2fd6dff25794233def4f2cf3f866955
      with:
        creds: ${{ secrets.AZURE_CREDENTIALS }}

    - name: Build image on ACR
      uses: azure/CLI@61bb69d64d613b52663984bf12d6bac8fd7b3cc8
      with:
        azcliversion: 2.29.1
        inlineScript: |
          az configure --defaults acr=${{ env.AZURE_CONTAINER_REGISTRY }}
          az acr build -t  -t ${{ env.REGISTRY_URL }}/${{ env.PROJECT_NAME }}:${{ github.sha }}
    
    - name: Gets K8s context
      uses: azure/aks-set-context@94ccc775c1997a3fcfbfbce3c459fec87e0ab188
      with:
          creds: ${{ secrets.AZURE_CREDENTIALS }}
          resource-group: ${{ env.RESOURCE_GROUP }}
          cluster-name: ${{ env.CLUSTER_NAME }}
      id: login

    - name: Configure deployment
      uses: azure/k8s-bake@61041e8c2f75c1f01186c8f05fb8b24e1fc507d8
      with:
        renderEngine: 'helm'
        helmChart: ${{ env.CHART_PATH }}
        overrideFiles: ${{ env.CHART_OVERRIDE_PATH }}
        overrides: |     
          replicas:2
        helm-version: 'latest' 
      id: bake

    - name: Deploys application
    - uses: Azure/k8s-deploy@dd4bbd13a5abd2fc9ca8bdcb8aee152bb718fa78
      with:
        manifests: ${{ steps.bake.outputs.manifestsBundle }}
        images: |
          ${{ env.AZURE_CONTAINER_REGISTRY }}.azurecr.io/${{ env.PROJECT_NAME }}:${{ github.sha }}
        imagepullsecrets: |
          ${{ env.PROJECT_NAME }}

Additional resources

The following resources may also be useful: