Infra

Provisioning Infrastructure with Jenkins + MAAS + Terraform + Ansible

Requirements

Jenkins (CI/CD Tools)
Git server
MinIO (Object Storage to store terraform.tfstate)
Terraform CLI
MAAS + Ready Machines

ℹ️ for testing use this stack for Jenkins + Gitea + MinIO + Docker Registry

How to

We need two .tfvars files:
terraform.tfvars
backend.tfvars

✅ We can store this sensetive informations about our infrastructure credentials on private and separated git repository to restrict and disallow anonymous access. Please refer to Jenkins environments directory to set git repos URL for every environments and credential. So we need git repo to store .tfvars for every environments.

terraform.tfvars

# Count of Machines to provision
MAAS_MACHINE_COUNT = 1
MAAS_API_URL       = "http://MAAS_IP:5240/MAAS"
MAAS_API_KEY       = "MAAS_API_KEY"
# Use tags to constraint provision (optional)
MAAS_MACHINE_TAGS  = ["MACHINE_TAGS_FOR_PROVISIONING"]

backend.tfvars

endpoint             = "http://MINIO_IP:9000"
bucket               = "MINIO_BUCKET_NAME"
access_key           = "MINIO_ACCESS_KEY"
secret_key           = "MINIO_SECRET_KEY"
# terraform.tfstate path in S3 Object Storage (MinIO):  
# /BUCKET_NAME/KEY_PREFIX/WORKSPACE_NAME/terraform.tfstate
workspace_key_prefix = "tfstate"

Define Jenkins job

According to *.groovy files in Jenkins environments directory, we need define Jenkins job (Pipeline job) with name of the groovy file name. For example:
infra-testing.groovy ➡️ infra-testing
Please refer to Load Configurations stage in Jenkinsfile. Run job and enjoy infrastructue automation.