cloudposse/github-action-atmos-terraform-drift-remediation

This Github Action is used to remediate drift

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Introduction

This action is used for drift remediation.

There is another companion action github-action-atmos-terraform-drift-detection.

Usage

Config

The action expects the atmos configuration file atmos.yaml to be present in the repository. The config should have the following structure:

integrations:
  github:
    gitops:
      terraform-version: 1.5.2
      infracost-enabled: false
      artifact-storage:
        region: us-east-2
        bucket: cptest-core-ue2-auto-gitops
        table: cptest-core-ue2-auto-gitops-plan-storage
        role: arn:aws:iam::xxxxxxxxxxxx:role/cptest-core-ue2-auto-gitops-gha
      role:
        plan: arn:aws:iam::yyyyyyyyyyyy:role/cptest-core-gbl-identity-gitops
        apply: arn:aws:iam::yyyyyyyyyyyy:role/cptest-core-gbl-identity-gitops
      matrix:
        sort-by: .stack_slug
        group-by: .stack_slug | split("-") | [.[0], .[2]] | join("-")

Important

Please note! This GitHub Action only works with atmos >= 1.63.0. If you are using atmos < 1.63.0 please use v1 version of this action.

Workflow example

In this example drift will be remediated when user sets label apply to an issue.

name: 👽 Atmos Terraform Drift Remediation
run-name: 👽 Atmos Terraform Drift Remediation

on:
  issues:
    types:
      - labeled
      - closed

permissions:
  id-token: write
  contents: read

jobs:
  remediate-drift:
    runs-on: ubuntu-latest
    name: Remediate Drift
    if: |
      github.event.action == 'labeled' &&
      contains(join(github.event.issue.labels.*.name, ','), 'apply')
    steps:
      - name: Remediate Drift
        uses: cloudposse/github-action-atmos-terraform-drift-remediation@v1
        with:
          issue-number: ${{ github.event.issue.number }}
          action: remediate
          atmos-config-path: ./rootfs/usr/local/etc/atmos/

  discard-drift:
    runs-on: ubuntu-latest
    name: Discard Drift
    if: |
      github.event.action == 'closed' &&
      !contains(join(github.event.issue.labels.*.name, ','), 'remediated')
    steps:
      - name: Discard Drift
        uses: cloudposse/github-action-atmos-terraform-drift-remediation@v1
        with:
          issue-number: ${{ github.event.issue.number }}
          action: discard
          atmos-gitops-config-path: ./.github/config/atmos-gitops.yaml

Migrating from `v1` to `v2`

The notable changes in v2 are:

v2 works only with atmos >= 1.63.0
v2 drops install-terraform input because terraform is not required for affected stacks call
v2 drops atmos-gitops-config-path input and the ./.github/config/atmos-gitops.yaml config file. Now you have to use GitHub Actions environment variables to specify the location of the atmos.yaml.

The following configuration fields now moved to GitHub action inputs with the same names

name
`atmos-version`
`atmos-config-path`

The following configuration fields moved to the atmos.yaml configuration file.

name	YAML path in `atmos.yaml`
`aws-region`	`integrations.github.gitops.artifact-storage.region`
`terraform-state-bucket`	`integrations.github.gitops.artifact-storage.bucket`
`terraform-state-table`	`integrations.github.gitops.artifact-storage.table`
`terraform-state-role`	`integrations.github.gitops.artifact-storage.role`
`terraform-plan-role`	`integrations.github.gitops.role.plan`
`terraform-apply-role`	`integrations.github.gitops.role.apply`
`terraform-version`	`integrations.github.gitops.terraform-version`
`enable-infracost`	`integrations.github.gitops.infracost-enabled`
`sort-by`	`integrations.github.gitops.matrix.sort-by`
`group-by`	`integrations.github.gitops.matrix.group-by`

For example, to migrate from v1 to v2, you should have something similar to the following in your atmos.yaml:

./.github/config/atmos.yaml

# ... your existing configuration

integrations:
  github:
    gitops:
      terraform-version: 1.5.2
      infracost-enabled: false
      artifact-storage:
        region: us-east-2
        bucket: cptest-core-ue2-auto-gitops
        table: cptest-core-ue2-auto-gitops-plan-storage
        role: arn:aws:iam::xxxxxxxxxxxx:role/cptest-core-ue2-auto-gitops-gha
      role:
        plan: arn:aws:iam::yyyyyyyyyyyy:role/cptest-core-gbl-identity-gitops
        apply: arn:aws:iam::yyyyyyyyyyyy:role/cptest-core-gbl-identity-gitops
      matrix:
        sort-by: .stack_slug
        group-by: .stack_slug | split("-") | [.[0], .[2]] | join("-")

.github/workflows/main.yaml

- name: Remediate Drift
  uses: cloudposse/github-action-atmos-terraform-drift-remediation@v2
  with:
    issue-number: ${{ github.event.issue.number }}
    action: remediate
    atmos-config-path: ./rootfs/usr/local/etc/atmos/

This corresponds to the v1 configuration (deprecated) below.

The v1 configuration file ./.github/config/atmos-gitops.yaml looked like this:

atmos-version: 1.45.3
atmos-config-path: ./rootfs/usr/local/etc/atmos/
terraform-state-bucket: cptest-core-ue2-auto-gitops
terraform-state-table: cptest-core-ue2-auto-gitops
terraform-state-role: arn:aws:iam::xxxxxxxxxxxx:role/cptest-core-ue2-auto-gitops-gha
terraform-plan-role: arn:aws:iam::yyyyyyyyyyyy:role/cptest-core-gbl-identity-gitops
terraform-apply-role: arn:aws:iam::yyyyyyyyyyyy:role/cptest-core-gbl-identity-gitops
terraform-version: 1.5.2
aws-region: us-east-2
enable-infracost: false
sort-by: .stack_slug
group-by: .stack_slug | split("-") | [.[0], .[2]] | join("-")

And the v1 GitHub Action Workflow looked like this.

.github/workflows/main.yaml

- name: Remediate Drift
  uses: cloudposse/github-action-atmos-terraform-drift-remediation@v1
  with:
    issue-number: ${{ github.event.issue.number }}
    action: remediate
    atmos-gitops-config-path: ./.github/config/atmos-gitops.yaml

Migrating from `v0` to `v1`

v2 drops the component-path variable and instead fetches if directly from the atmos.yaml file automatically. Simply remove the component-path argument from your invocations of the cloudposse/github-action-atmos-terraform-plan action.
v2 moves most of the inputs to the Atmos GitOps config path ./.github/config/atmos-gitops.yaml. Simply create this file, transfer your settings to it, then remove the corresponding arguments from your invocations of the cloudposse/github-action-atmos-terraform-plan action.

name
`atmos-version`
`atmos-config-path`
`terraform-state-bucket`
`terraform-state-table`
`terraform-state-role`
`terraform-plan-role`
`terraform-apply-role`
`terraform-version`
`aws-region`
`enable-infracost`

If you want the same behavior in v1 as inv0 you should create config ./.github/config/atmos-gitops.yaml with the same variables as in v0 inputs.

  - name: Remediate Drift
    uses: cloudposse/github-action-atmos-terraform-drift-remediation@v1
    with:
      issue-number: ${{ github.event.issue.number }}
      action: remediate
      atmos-gitops-config-path: ./.github/config/atmos-gitops.yaml

Which would produce the same behavior as in v0, doing this:

  - name: Remediate Drift
    uses: cloudposse/github-action-atmos-terraform-drift-remediation@v0
    with:
      issue-number: ${{ github.event.issue.number }}
      action: remediate
      atmos-config-path: "${{ github.workspace }}/rootfs/usr/local/etc/atmos/"
      terraform-plan-role: "arn:aws:iam::111111111111:role/acme-core-gbl-identity-gitops"
      terraform-state-bucket: "acme-core-ue2-auto-gitops"
      terraform-state-role: "arn:aws:iam::999999999999:role/acme-core-ue2-auto-gitops-gha"
      terraform-state-table: "acme-core-ue2-auto-gitops"
      aws-region: "us-east-2"

Important

In Cloud Posse's examples, we avoid pinning modules to specific versions to prevent discrepancies between the documentation and the latest released versions. However, for your own projects, we strongly advise pinning each module to the exact version you're using. This practice ensures the stability of your infrastructure. Additionally, we recommend implementing a systematic approach for updating versions to avoid unexpected changes.

Inputs

Name	Description	Default	Required
action	Drift remediation action. One of ['remediate', 'discard']	remediate	false
atmos-config-path	The path to the atmos.yaml file	N/A	true
atmos-version	The version of atmos to install	>= 1.63.0	false
debug	Enable action debug mode. Default: 'false'	false	false
issue-number	Issue Number	N/A	true
token	Used to pull node distributions for Atmos from Cloud Posse's GitHub repository. Since there's a default, this is typically not supplied by the user. When running this action on github.com, the default value is sufficient. When running on GHES, you can pass a personal access token for github.com if you are experiencing rate limiting.	${{ github.server_url == 'https://github.com' && github.token \|\| '' }}	false

Related Projects

Check out these related projects.

References

For additional context, refer to some of these links.

github-action-atmos-terraform-drift-detection - Companion GitHub Action for detection
github-action-atmos-terraform-select-components - Companion GitHub Action to select components that are suitable for drift detection
github-action-terraform-plan-storage - A GitHub Action to securely store Terraform plan files in an S3 bucket with metadata storage in DynamoDB.
github-action-terraform-plan - GitHub Action to do Terraform Plan
github-action-terraform-apply - GitHub Action to do Terraform Apply

Tip

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Your team can operate like a pro today.

Ensure that your team succeeds by using Cloud Posse's proven process and turnkey blueprints. Plus, we stick around until you succeed.

Day-0: Your Foundation for Success

Reference Architecture. You'll get everything you need from the ground up built using 100% infrastructure as code.
Deployment Strategy. Adopt a proven deployment strategy with GitHub Actions, enabling automated, repeatable, and reliable software releases.
Site Reliability Engineering. Gain total visibility into your applications and services with Datadog, ensuring high availability and performance.
Security Baseline. Establish a secure environment from the start, with built-in governance, accountability, and comprehensive audit logs, safeguarding your operations.
GitOps. Empower your team to manage infrastructure changes confidently and efficiently through Pull Requests, leveraging the full power of GitHub Actions.

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Bug Fixes. Rely on our team to troubleshoot and resolve any issues, ensuring your systems run smoothly.
Migration Assistance. Accelerate your migration process with our dedicated support, minimizing disruption and speeding up time-to-value.
Customer Workshops. Engage with our team in weekly workshops, gaining insights and strategies to continuously improve and innovate.

✨ Contributing

This project is under active development, and we encourage contributions from our community.

Many thanks to our outstanding contributors:

For 🐛 bug reports & feature requests, please use the issue tracker.

In general, PRs are welcome. We follow the typical "fork-and-pull" Git workflow.

Review our Code of Conduct and Contributor Guidelines.
Fork the repo on GitHub
Clone the project to your own machine
Commit changes to your own branch
Push your work back up to your fork
Submit a Pull Request so that we can review your changes

NOTE: Be sure to merge the latest changes from "upstream" before making a pull request!

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License

Preamble to the Apache License, Version 2.0

Complete license is available in the LICENSE file.

Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.  See the NOTICE file
distributed with this work for additional information
regarding copyright ownership.  The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License.  You may obtain a copy of the License at

  https://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied.  See the License for the
specific language governing permissions and limitations
under the License.

Trademarks

All other trademarks referenced herein are the property of their respective owners.

cloudposse / github-action-atmos-terraform-drift-remediation

👽 Use Atmos with Terraform

Introduction

Usage

Config

Workflow example

Migrating from `v1` to `v2`

Migrating from `v0` to `v1`

Inputs

Related Projects

References

Use Terraform Reference Architectures for AWS

Day-0: Your Foundation for Success

Day-2: Your Operational Mastery

✨ Contributing

🌎 Slack Community

📰 Newsletter

📆 Office Hours

License

Trademarks

About

Languages

👽 Use Atmos with Terraform

Introduction

Usage

Config

Workflow example

Migrating from v1 to v2

Migrating from v0 to v1

Inputs

Related Projects

References

Use Terraform Reference Architectures for AWS

Day-0: Your Foundation for Success

Day-2: Your Operational Mastery

✨ Contributing

🌎 Slack Community

📰 Newsletter

📆 Office Hours

License

Trademarks

About

Languages

Migrating from `v1` to `v2`

Migrating from `v0` to `v1`