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terraform-validation.yml
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name: Terraform Validation
on:
pull_request:
paths:
- '**.tf'
- '**.json'
- '**.tfvars'
- 'modules/terraform/**'
env:
TERRAFORM_AZURE_MODULES_DIR: modules/terraform/azure
TERRAFORM_AWS_MODULES_DIR: modules/terraform/aws
AWS_REGION: us-east-1
jobs:
terraform-validation:
runs-on: ubuntu-latest
steps:
- name: Checkout Repository
uses: actions/checkout@v4
- name: Setup Terraform
uses: hashicorp/setup-terraform@v2
with:
terraform_version: 1.5.6
- name: Terraform Format Check
if: always()
run: |
terraform fmt --check -recursive --diff
if [ $? -ne 0 ]; then
echo "Please run 'terraform fmt -recursive' from root directory to format the code."
exit 1
fi
- name: Terraform Azure Validation Check
if: always()
working-directory: ${{ env.TERRAFORM_AZURE_MODULES_DIR }}
run: |
terraform init
terraform validate
- name: Terraform AWS Validation Check
if: always()
working-directory: ${{ env.TERRAFORM_AWS_MODULES_DIR }}
run: |
terraform init
terraform validate
- uses: terraform-linters/setup-tflint@v4
name: Setup TFLint
- name: Show version
run: tflint --version
- name: Init TFLint
run: tflint --init
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
- name: Terraform Lint Check
run: tflint --recursive --config "$GITHUB_WORKSPACE/.tflint.hcl" --minimum-failure-severity=warning
setup-matrix:
runs-on: ubuntu-latest
name: Setup terraform plan matrix for test scenarios
steps:
- name: Checkout Repository
uses: actions/checkout@v4
with:
fetch-depth: 0
- name: Setup test matrix scenarios
id: setup-matrix-scenarios
run: |
set -eux
matrix=$(find $GITHUB_WORKSPACE/scenarios/ -name "*.tfvars" | awk -F'/' '{split($11, file_name, "."); split(file_name[1], cloud_region, "-");region= (length(cloud_region) > 1) ? substr($11, index($11, "-") + 1) : ""; cloud=cloud_region[1]; gsub(".json", "", region); print "{\"cloud\": \"" cloud "\", \"file_name\": \"" file_name[1] "\", " (region != "" ? "\"region\": \"" region "\", " : "") "\"scenario_type\": \"" $8 "\", \"scenario_name\": \"" $9 "\"},"}' | sort | uniq | sed 's/,$/,/')
matrix_array="[${matrix%,}]"
file_changes=$(git diff --name-only -r origin/main HEAD)
echo "PR file changes: $file_changes"
if [ -z "$file_changes" ]; then
matrix_combinations=null
echo "matrix_combinations=$matrix_combinations" >> "$GITHUB_OUTPUT"
else
cloud_changes=$(echo "$file_changes" | grep -E '\.tf$' | awk -F'/' '{print $3}' | uniq)
echo "File changes related to cloud: $cloud_changes"
run_all_tests=false
module_matrix='[]'
scenario_matrix='[]'
if [ $(echo "$cloud_changes" | wc -w) -eq 1 ]; then
cloud=$(echo "$cloud_changes" | cut -d' ' -f1)
module_matrix=$(echo "$matrix_array" | jq --arg cloud_value "$cloud" '. | map(select(.cloud == $cloud_value))')
elif [ $(echo "$cloud_changes" | wc -w) -eq 0 ]; then
run_all_tests=false
else
run_all_tests=true
module_matrix=$(echo "$matrix_array")
fi
echo "module_matrix: $module_matrix"
if [ "$run_all_tests" = false ]; then
changed_scenario_names=$(echo "$file_changes" | grep -E '^scenarios/' | awk -F'/' '{print $3}' | tr ' ' '\n' | sort -u)
echo "Test scenarios changed: $changed_scenario_names"
for scenario_name in $changed_scenario_names; do
filtered_objects=$(echo "$matrix_array" | jq --arg scenario_value "$scenario_name" '. | map(select(.scenario_name == $scenario_value))')
scenario_matrix=$(echo "$scenario_matrix $filtered_objects" | jq -s 'flatten | unique')
done
fi
updated_matrix=$(echo "$module_matrix $scenario_matrix" | jq -s 'flatten | unique')
echo "Test scenarios to run: $updated_matrix"
updated_matrix="${updated_matrix//$'\n'/''}"
matrix_combinations="{\"include\": ${updated_matrix%?}}"
echo "matrix_combinations={\"include\": ${updated_matrix} }" >> "$GITHUB_OUTPUT"
fi
echo "matrix_combinations: $matrix_combinations"
outputs:
matrix-combinations: ${{ steps.setup-matrix-scenarios.outputs.matrix_combinations }}
terraform-plan:
permissions:
id-token: write
contents: read
needs: setup-matrix
if: ${{ needs.setup-matrix.result == 'success' && needs.setup-matrix.outputs.matrix-combinations != 'null' && needs.setup-matrix.outputs.matrix-combinations['inlcude'] != '[]' }}
strategy:
fail-fast: false
max-parallel: 3
matrix: ${{ fromJson(needs.setup-matrix.outputs.matrix-combinations) }}
runs-on: ubuntu-latest
name: ${{ matrix.cloud }}-${{ matrix.scenario_type }}-${{ matrix.scenario_name }} ${{ matrix.region }}
steps:
- name: Checkout Repository
uses: actions/checkout@v4
- name: Get job id and set env
run: |
echo "TERRAFORM_INPUT_FILE=$GITHUB_WORKSPACE/scenarios/${{ matrix.scenario_type }}/${{ matrix.scenario_name }}/terraform-inputs/${{ matrix.file_name }}.tfvars" >> "$GITHUB_ENV"
echo "TERRAFORM_TEST_INPUT_FILE=$GITHUB_WORKSPACE/scenarios/${{ matrix.scenario_type }}/${{ matrix.scenario_name }}/terraform-test-inputs/${{ matrix.file_name }}.json" >> "$GITHUB_ENV"
echo "TERRAFORM_MODULES_DIR=modules/terraform/${{ matrix.cloud }}" >> "$GITHUB_ENV"
- name: Create JSON Input
run: |
INPUT_JSON_OBJECT=$(jq . ${{ env.TERRAFORM_TEST_INPUT_FILE }})
INPUT_JSON_STRING=$(echo $INPUT_JSON_OBJECT | jq -c '. + {creation_time: (now | todateiso8601)}')
echo "INPUT_JSON=$INPUT_JSON_STRING" >> "$GITHUB_ENV"
- name: Azure login
if: ${{ matrix.cloud == 'azure' }}
uses: azure/login@v1
with:
client-id: ${{ secrets.AZURE_MI }}
tenant-id: ${{ secrets.AZURE_TENANT_ID }}
subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
- name: AWS login
if: ${{ matrix.cloud == 'aws' }}
uses: aws-actions/configure-aws-credentials@v2
with:
aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
aws-region: ${{ env.AWS_REGION }}
- name: Terraform Init
working-directory: ${{ env.TERRAFORM_MODULES_DIR }}
run: terraform init
- name: Terraform Plan
working-directory: ${{ env.TERRAFORM_MODULES_DIR }}
run: |
terraform plan -var-file "$TERRAFORM_INPUT_FILE" -var="json_input=$INPUT_JSON"
env:
ARM_SUBSCRIPTION_ID: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
CLOUD: ${{ matrix.cloud }}