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feat(iac): add Arc infrastructure Terraform module and CI/CD pipelines
Adds a new Terraform module for setting up Arc infrastructure, including NAT gateway for outbound internet access. Also adds Azure DevOps pipelines for deploying and destroying the Arc infrastructure in different environments. Refs: DTOSS-12318
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‎.azuredevops/pipelines/deploy.yml‎

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trigger: none
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pr: none
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parameters:
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- name: commitSHA
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displayName: Commit SHA
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type: string
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- name: environment
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displayName: Environment
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type: string
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- name: pool
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displayName: ADO management pool
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type: string
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stages:
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- stage: ${{ parameters.environment }}
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displayName: Deploy Arc infrastructure to ${{ parameters.environment }}
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pool:
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name: ${{ parameters.pool }}
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lockBehavior: sequential
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isSkippable: false
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jobs:
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- deployment: DeployArcInfra
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displayName: Deploy Arc infrastructure
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environment: ${{ parameters.environment }}
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strategy:
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runOnce:
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deploy:
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steps:
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- checkout: self
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- bash: |
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TF_VERSION=$(grep "^terraform" .tool-versions | awk '{print $2}')
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echo "##vso[task.setvariable variable=TF_VERSION]$TF_VERSION"
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displayName: Get Terraform version from .tool-versions
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- task: TerraformInstaller@1
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displayName: Install Terraform
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inputs:
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terraformVersion: $(TF_VERSION)
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- task: AzureCLI@2
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displayName: Run Terraform
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inputs:
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azureSubscription: manbgw-${{ parameters.environment }}
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scriptType: bash
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scriptLocation: inlineScript
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addSpnToEnvironment: true
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inlineScript: |
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export ARM_TENANT_ID="$tenantId"
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export ARM_CLIENT_ID="$servicePrincipalId"
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export ARM_OIDC_TOKEN="$idToken"
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export ARM_USE_OIDC=true
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make ci ${{ parameters.environment }} terraform-apply

‎.azuredevops/pipelines/destroy.yml‎

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trigger: none
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pr: none
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parameters:
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- name: commitSHA
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displayName: Commit SHA
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type: string
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- name: environment
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displayName: Environment
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type: string
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- name: pool
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displayName: ADO management pool
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type: string
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stages:
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- stage: ${{ parameters.environment }}
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displayName: Destroy Arc infrastructure in ${{ parameters.environment }}
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pool:
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name: ${{ parameters.pool }}
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lockBehavior: sequential
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isSkippable: false
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jobs:
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- deployment: DestroyArcInfra
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displayName: Destroy Arc infrastructure
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environment: ${{ parameters.environment }}
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strategy:
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runOnce:
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deploy:
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steps:
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- checkout: self
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- bash: |
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TF_VERSION=$(grep "^terraform" .tool-versions | awk '{print $2}')
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echo "##vso[task.setvariable variable=TF_VERSION]$TF_VERSION"
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displayName: Get Terraform version from .tool-versions
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- task: TerraformInstaller@1
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displayName: Install Terraform
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inputs:
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terraformVersion: $(TF_VERSION)
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- task: AzureCLI@2
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displayName: Run Terraform destroy
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inputs:
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azureSubscription: manbgw-${{ parameters.environment }}
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scriptType: bash
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scriptLocation: inlineScript
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addSpnToEnvironment: true
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inlineScript: |
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export ARM_TENANT_ID="$tenantId"
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export ARM_CLIENT_ID="$servicePrincipalId"
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export ARM_OIDC_TOKEN="$idToken"
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export ARM_USE_OIDC=true
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make ci ${{ parameters.environment }} terraform-destroy

‎.github/workflows/cicd-2-main-branch.yaml‎

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version: ${{ needs.release-stage.outputs.new_release_version }}
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new_release_published: ${{ needs.release-stage.outputs.new_release_published == 'true' }}
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secrets: inherit
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deploy-stage:
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name: Deploy stage
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needs: [test-stage]
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permissions:
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id-token: write
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uses: ./.github/workflows/stage-4-deploy.yaml
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with:
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environments: '["review"]'
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commit_sha: ${{ github.sha }}
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secrets: inherit

‎.github/workflows/stage-4-deploy.yaml‎

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name: Deployment stage
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on:
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workflow_call:
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inputs:
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environments:
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description: List of environments to deploy to (JSON string array)
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required: true
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type: string
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commit_sha:
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description: Commit SHA used to trigger the ADO pipeline
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required: true
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type: string
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jobs:
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deploy:
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name: Deploy
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runs-on: ubuntu-latest
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strategy:
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matrix:
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environment: ${{ fromJson(inputs.environments) }}
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max-parallel: 1
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environment: ${{ matrix.environment }}
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# Prevent concurrent deployments to the same environment
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concurrency: deploy-${{ matrix.environment }}
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permissions:
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id-token: write
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steps:
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- name: Checkout code
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uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
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- name: Azure login
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uses: azure/login@a457da9ea143d694b1b9c7c869ebb04ebe844ef5 # v2
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with:
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client-id: ${{ secrets.AZURE_CLIENT_ID }}
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tenant-id: ${{ secrets.AZURE_TENANT_ID }}
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subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
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- name: Call deployment pipeline
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env:
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ENVIRONMENT: ${{ matrix.environment }}
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COMMIT_SHA: ${{ inputs.commit_sha }}
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run: |
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source "infrastructure/environments/${ENVIRONMENT}/variables.sh"
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echo "Starting Azure devops pipeline \"Deploy to Azure - ${ENVIRONMENT}\"..."
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RUN_ID=$(az pipelines run \
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--commit-id "${COMMIT_SHA}" \
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--name "Deploy to Azure - ${ENVIRONMENT}" \
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--org https://dev.azure.com/nhse-dtos \
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--project manage-breast-screening-gateway \
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--parameters commitSHA="${COMMIT_SHA}" environment="${ENVIRONMENT}" pool="${ADO_MANAGEMENT_POOL}" \
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--output tsv --query id)
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echo "See pipeline run in Azure devops: https://dev.azure.com/nhse-dtos/manage-breast-screening-gateway/_build/results?buildId=${RUN_ID}&view=results"
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scripts/bash/wait_ado_pipeline.sh "$RUN_ID" https://dev.azure.com/nhse-dtos manage-breast-screening-gateway

‎.github/workflows/stage-4-destroy.yaml‎

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name: Destroy Arc infrastructure
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on:
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workflow_call:
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inputs:
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environment:
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description: Environment to destroy
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required: true
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type: string
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commit_sha:
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description: Commit SHA used to trigger the ADO pipeline
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required: true
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type: string
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workflow_dispatch:
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inputs:
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environment:
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description: Environment to destroy
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required: true
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type: choice
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options:
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- dev
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- review
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jobs:
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destroy:
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name: Destroy ${{ inputs.environment }}
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runs-on: ubuntu-latest
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environment: ${{ inputs.environment }}
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# Prevent concurrent destroy running alongside a deploy for the same environment
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concurrency: deploy-${{ inputs.environment }}
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permissions:
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id-token: write
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steps:
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- name: Checkout code
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uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
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- name: Azure login
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uses: azure/login@a457da9ea143d694b1b9c7c869ebb04ebe844ef5 # v2
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with:
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client-id: ${{ secrets.AZURE_CLIENT_ID }}
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tenant-id: ${{ secrets.AZURE_TENANT_ID }}
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subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
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- name: Call destroy pipeline
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env:
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ENVIRONMENT: ${{ inputs.environment }}
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COMMIT_SHA: ${{ inputs.commit_sha || github.sha }}
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run: |
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source "infrastructure/environments/${ENVIRONMENT}/variables.sh"
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echo "Starting Azure devops pipeline \"Destroy Arc Infrastructure\"..."
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RUN_ID=$(az pipelines run \
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--commit-id "${COMMIT_SHA}" \
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--name "Destroy Arc Infrastructure" \
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--org https://dev.azure.com/nhse-dtos \
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--project manage-breast-screening-gateway \
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--parameters commitSHA="${COMMIT_SHA}" environment="${ENVIRONMENT}" pool="${ADO_MANAGEMENT_POOL}" \
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--output tsv --query id)
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echo "See pipeline run in Azure devops: https://dev.azure.com/nhse-dtos/manage-breast-screening-gateway/_build/results?buildId=${RUN_ID}&view=results"
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scripts/bash/wait_ado_pipeline.sh "$RUN_ID" https://dev.azure.com/nhse-dtos manage-breast-screening-gateway

‎.gitignore‎

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# Please, add your custom content below!
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# Terraform
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.terraform/
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.terraform.lock.hcl
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*.tfstate
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*.tfstate.backup
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*.tfplan
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infrastructure/modules/dtos-devops-templates/
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# Python
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__pycache__/
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*.py[cod]

‎.tool-versions‎

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ruff 0.14.1
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pre-commit 3.6.0
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gitleaks 8.18.4
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terraform 1.9.8

‎infrastructure/environments/dev/variables.sh‎

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‎infrastructure/environments/preprod/variables.sh‎

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‎infrastructure/environments/prod/variables.sh‎

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