Deploy a Docker Container to Azure Container Registry with a GitHub action

azure-container-registry.yml

on: [push]
name: Linux_Container_Workflow

jobs:
    build-and-deploy:
        runs-on: ubuntu-latest
        steps:
        # checkout the repo
        - name: 'Checkout GitHub Action'
          uses: actions/checkout@main
          
        - name: 'Login via Azure CLI'
          uses: azure/login@v1
          with:
            creds: ${{ secrets.AZURE_CREDENTIALS }}
        
        - name: 'Build and push image'
          uses: azure/docker-login@v1
          with:
            login-server: ${{ secrets.REGISTRY_SERVER }}
            username: ${{ secrets.REGISTRY_USERNAME }}
            password: ${{ secrets.REGISTRY_PASSWORD }}
        - run: |
            docker build . -t ${{ secrets.REGISTRY_SERVER }}/yourcontainername:latest
            docker push ${{ secrets.REGISTRY_SERVER }}/yourcontainername:latest

First add the repo secrets to the GitHub Secrets

AZURE_CREDENTIALS example

{
  "clientId": "xxxx6ddc-xxxx-xxxx-xxx-ef78a99dxxxx",
  "clientSecret": "xxxx79dc-xxxx-xxxx-xxxx-aaaaaec5xxxx",
  "subscriptionId": "xxxx251c-xxxx-xxxx-xxxx-bf99a306xxxx",
  "tenantId": "xxxx88bf-xxxx-xxxx-xxxx-2d7cd011xxxx",
  "activeDirectoryEndpointUrl": "https://login.microsoftonline.com",
  "resourceManagerEndpointUrl": "https://management.azure.com/",
  "activeDirectoryGraphResourceId": "https://graph.windows.net/",
  "sqlManagementEndpointUrl": "https://management.core.windows.net:8443/",
  "galleryEndpointUrl": "https://gallery.azure.com/",
  "managementEndpointUrl": "https://management.core.windows.net/"
}