CODEWITHSUNDEEP
terraformgithub-actions
Valip
Valip

Reputation: 4620

Github workflows deploy multiple Terraform environments

I have the following terraform scripts structure

environments
  |- dev
  |- staging
modules

Each environment has its own state stored in S3 and they create resources from the modules directory.
How can I deploy all terraform environments at once by using GitHub Workflows without having to duplicate the init, plan, apply steps for each env directory?

This is my current yml file for deploying the dev environment:

name: Terraform Deployment after push
on:
  push:
    branches:
      - main

permissions:
  id-token: write
  contents: write

env:
  AWS_REGION: us-east-1

jobs:
  merged:
    name: deploy
    runs-on: ubuntu-20.04
    steps:
      - name: Check out code
        uses: actions/checkout@v2

      - name: Setup Terraform
        uses: hashicorp/setup-terraform@v1
        with:
          terraform_version: 1.2.6

      - name: Run terraform fmt check
        id: fmt
        run: terraform fmt -check -diff -recursive

      - name: Configure AWS Credentials
        uses: aws-actions/configure-aws-credentials@v1
        with:
          aws-region: ${{ env.AWS_REGION }}
          role-to-assume: ${{ secrets.ROLE }}
          role-session-name: InfraDeployOnMerge

      - name: Initialize Terraform
        id: init
        run: |
          cd environments/dev
          rm -rf .terraform.*
          terraform init -input=false

      - name: Terraform Validate
        id: validate
        run: terraform validate -no-color

      - name: Terraform Plan
        id: plan
        run: |
          cd environments/dev
          terraform plan -var="aws_region=${{ env.AWS_REGION }}" -var="aws_profile=" -input=false -no-color -out=tfplan \
          && terraform show -no-color tfplan
        continue-on-error: true

      - name: Apply Terraform
        if: steps.plan.outcome == 'success'
        id: apply
        continue-on-error: true
        run: |
          cd environments/dev
          terraform apply -input=false -no-color \
          tfplan

Upvotes: 1

Views: 1494

Answers (1)

Prashanth Goud B
Prashanth Goud B

Reputation: 44

You can use github matrix syntax to define multiple environments and use it to cd to respective folder and apply.

Or if possible adapt terragrunt which makes your life easier to deploy to multiple accounts and environments.

Upvotes: 1

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