Add workflow to backup production DB

.github/workflows/backup-db.yml

@@ -0,0 +1,38 @@
+name: Backup production database
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 4 * * *" # 04:00 UTC
+  push:
+    branches:
+    - backup-db
+
+jobs:
+  backup:
+    name: Backup database
+    runs-on: ubuntu-latest
+
+    environment: production
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: hashicorp/setup-terraform@v2
+        with:
+          terraform_version: 1.5.0
+          terraform_wrapper: false
+
+      - uses: DFE-Digital/github-actions/set-arm-environment-variables@master
+        with:
+          azure-credentials: ${{ secrets.AZURE_CREDENTIALS }}
+
+      - name: Get Azure backup storage details
+        id: azure-backup-storage
+        run: |
+          set -e
+          #make ci production_aks terraform-init
+          make ci production_aks
+          terraform -chdir=terraform/aks init -backend-config workspace_variables/production.backend.tfvars -reconfigure -input=false
+          echo "account-name=$(terraform -chdir=terraform/aks output -raw postgres_azure_backup_storage_account_name)" >> $GITHUB_OUTPUT
+          echo "container-name=$(terraform -chdir=terraform/aks output -raw postgres_azure_backup_storage_container_name)" >> $GITHUB_OUTPUT

Makefile

@@ -209,7 +209,7 @@ terraform-init:
 	$(eval export TF_VAR_azure_resource_prefix=$(RESOURCE_NAME_PREFIX))
 
 	[[ "${SP_AUTH}" != "true" ]] && az account set -s $(AZURE_SUBSCRIPTION) || true
-	terraform -chdir=terraform/$(PLATFORM) init -backend-config workspace_variables/${DEPLOY_ENV}.backend.tfvars -reconfigure
+	terraform -chdir=terraform/$(PLATFORM) init -backend-config workspace_variables/${DEPLOY_ENV}.backend.tfvars -reconfigure -input=false
 
 terraform-plan: terraform-init # make [env] terraform-plan init
 	terraform -chdir=terraform/$(PLATFORM) plan -var-file workspace_variables/${DEPLOY_ENV}.tfvars.json

terraform/aks/outputs.tf

@@ -0,0 +1,7 @@
+output "postgres_azure_backup_storage_account_name" {
+  value = module.postgres.azure_backup_storage_account_name
+}
+
+output "postgres_azure_backup_storage_container_name" {
+  value = module.postgres.azure_backup_storage_container_name
+}