Integrating DeployKit with Your CI/CD Pipeline

Add infrastructure cost estimation to your pull requests. See the cost impact of infrastructure changes before they're merged.

schedule12 min readLast updated: January 8, 2026

check_circlePrerequisites

check_circleGitHub, GitLab, or Bitbucket repository
check_circleTerraform or CloudFormation IaC
check_circleCI/CD pipeline (GitHub Actions, GitLab CI, etc.)

menu_bookIn This Guide

1.Introduction

DeployKit analyzes your infrastructure-as-code changes and estimates the cost impact before deployment. It posts a comment on your pull request showing:

- Monthly cost difference (before vs after) - Breakdown by resource type - Warnings for expensive changes - Suggestions for cost optimization

This helps teams make informed decisions about infrastructure changes and prevents cost surprises.

2.Step 1: Generate API Token

First, create a DeployKit API token:

1. Go to app.morphlix.com/deploykit 2. Navigate to Settings > API Tokens 3. Create a new token with "Cost Estimation" scope 4. Copy the token and save it securely

Add this token as a secret in your repository (e.g., `DEPLOYKIT_API_TOKEN`).

3.Step 2: GitHub Actions Integration

Add the DeployKit action to your Terraform workflow:

yaml

# .github/workflows/terraform.yml
name: Terraform Plan with Cost Estimation

on:
  pull_request:
    paths:
      - 'terraform/**'
      - '.github/workflows/terraform.yml'

jobs:
  plan:
    runs-on: ubuntu-latest
    permissions:
      pull-requests: write
      contents: read

    steps:
      - uses: actions/checkout@v4

      - name: Setup Terraform
        uses: hashicorp/setup-terraform@v3
        with:
          terraform_version: 1.6.0

      - name: Terraform Init
        run: terraform init
        working-directory: terraform

      - name: Terraform Plan
        run: terraform plan -out=tfplan
        working-directory: terraform

      - name: Convert Plan to JSON
        run: terraform show -json tfplan > tfplan.json
        working-directory: terraform

      - name: DeployKit Cost Estimation
        uses: morphlix/deploykit-action@v2
        with:
          api_token: ${{ secrets.DEPLOYKIT_API_TOKEN }}
          plan_file: terraform/tfplan.json
          github_token: ${{ secrets.GITHUB_TOKEN }}

          # Optional: Set thresholds for warnings
          warn_threshold: 100   # Warn if monthly increase > $100
          fail_threshold: 1000  # Fail if monthly increase > $1000

4.Step 3: GitLab CI Integration

For GitLab CI, add a cost estimation job:

yaml

# .gitlab-ci.yml
stages:
  - validate
  - plan
  - cost
  - apply

terraform-plan:
  stage: plan
  image: hashicorp/terraform:1.6
  script:
    - terraform init
    - terraform plan -out=tfplan
    - terraform show -json tfplan > tfplan.json
  artifacts:
    paths:
      - tfplan.json
    expire_in: 1 day
  only:
    - merge_requests

cost-estimation:
  stage: cost
  image: morphlix/deploykit:latest
  script:
    - deploykit estimate \
        --plan-file tfplan.json \
        --format gitlab-mr \
        --api-token $DEPLOYKIT_API_TOKEN
  dependencies:
    - terraform-plan
  only:
    - merge_requests

5.Example PR Comment

DeployKit posts a formatted comment on your PR showing the cost impact:

---

## 💰 Infrastructure Cost Estimate

| | Monthly Cost | |---|---:| | **Current** | $1,245.00 | | **Proposed** | $1,892.00 | | **Difference** | **+$647.00 (+52%)** |

### Changes by Resource

| Resource | Type | Change | Monthly Impact | |---|---|---|---:| | aws_instance.api | t3.medium → t3.xlarge | Resize | +$120.00 | | aws_rds_instance.main | New | Create | +$450.00 | | aws_elasticache_cluster.redis | New | Create | +$77.00 |

### ⚠️ Warnings

- RDS instance `db.r5.large` may be oversized for expected load. Consider `db.t3.large` for $320/mo savings.

---

This helps reviewers understand the cost implications before approving.

6.Customizing Thresholds and Rules

Create a `.deploykit.yml` config file in your repo:

yaml

# .deploykit.yml
version: 1

# Cost thresholds
thresholds:
  warn: 100      # Comment warning if increase > $100/mo
  fail: 1000     # Block PR if increase > $1000/mo

# Approval requirements
approvals:
  high_cost_changes:
    threshold: 500
    required_reviewers:
      - cloud-team
      - finance

# Custom pricing (for resources not in public pricing)
custom_pricing:
  aws_instance:
    m5.metal: 4.608  # $/hour

# Excluded resources (don't count in estimates)
exclude:
  - aws_cloudwatch_log_group  # Costs vary too much
  - data.*                     # Data sources

# Notifications
notifications:
  slack:
    webhook: ${{ SLACK_WEBHOOK }}
    on: [high_cost_change, threshold_exceeded]

Need Help?

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