build-infra.yaml

name: Build Infra

on:
  push:
    branches:
      - main
  workflow_dispatch: {}

jobs:
  run:
    name: run
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3

      # Install the terraform and terragrunt
      - uses: alexellis/setup-arkade@v1
      - uses: alexellis/arkade-get@master
        with:
          terraform: latest
          terragrunt: latest

      - name: Configure AWS credentials
        uses: aws-actions/configure-aws-credentials@v3
        with:
          # aws-access-key-id: ${{ secrets.PERSONAL_ACCESS_KEY }}
          # aws-secret-access-key: ${{ secrets.PERSONAL_SECRET_ACCESS_KEY }}
          # role-to-assume: ${{ secrets.ROLE_TO_ASSUME }}
          role-to-assume: ${{ vars.OIDC_ROLE }}
          aws-region: ${{ vars.AWS_REGION }}
          role-skip-session-tagging: true

      # Display IAM Identity
      - name: Display IAM Identity
        run: |
          aws sts get-caller-identity

      - name: Install jq
        run: |
          sudo apt install jq tree

      ## Fetch output from our terraform
      - name: Pull Terraform output into GitHub Action ENV
        run: |
          terragrunt output --json > tmp_output.json
          echo "ecr_repository_url=$(jq .ecr_repository_url.value -r < tmp_output.json)" >> $GITHUB_ENV
          echo "ecs_task_arn=$(jq .ecs_task_arn.value -r < tmp_output.json)" >> $GITHUB_ENV
          echo "ecs_service_arn=$(jq .ecs_service_arn.value -r < tmp_output.json)" >> $GITHUB_ENV
          echo "ecs_cluster_arn=$(jq .ecs_cluster_arn.value -r < tmp_output.json)" >> $GITHUB_ENV
          rm tmp_output.json
        working-directory: terraform

      - name: Fetch ECS Repo Url
        run: |
          echo "${{ env.ecr_repository_url }}"

      # Build docker image
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2

      - name: Login to Amazon ECR
        id: login-ecr
        uses: aws-actions/amazon-ecr-login@v1

      - name: Build and push
        uses: docker/build-push-action@v4
        with:
          push: true
          tags: ${{ env.ecr_repository_url }}:latest , ${{ env.ecr_repository_url }}:${{ github.sha }}

      - name: Pull task-definition.json to update ECS cluster
        id: pull-ecs-task-definition
        run: |
          aws ecs describe-task-definition --task-definition ${{ env.ecs_task_arn }} --region ${{ env.AWS_REGION }} --output json | jq .taskDefinition >> task-definition.json

      - name: Check what task-definition.json looks like
        run: |
          cat task-definition.json

      - name: Render Amazon ECS task definition
        id: render-web-container
        uses: aws-actions/amazon-ecs-render-task-definition@v1
        with:
          task-definition: task-definition.json
          container-name: knowledgeshare-ui
          image: ${{ env.ecr_repository_url }}:${{ github.sha }}
          environment-variables: "LOG_LEVEL=info"

      - name: Deploy to Amazon ECS service
        uses: aws-actions/amazon-ecs-deploy-task-definition@v1
        with:
          task-definition: ${{ steps.render-web-container.outputs.task-definition }}
          service: ${{ env.ecs_service_arn }}
          cluster: ${{ env.ecs_cluster_arn }}
          force-new-deployment: true