Terraform documentation
Internal terraform documentation for managing infrastructure.
Troubleshooting
Recreate a Resource
You can force the recreation (delete/create or -/+) by using the -replace=ADDRESS argument with terraform plan or terraform apply:
terraform apply -replace=aws_lightsail_instance_public_ports.myserver-sig-public-ports
This replaces the former workflow of terraform taint <resource_address> followed by a plan and apply. If you are using an older version of Terraform, then you would need to use taint instead:
terraform taint aws_lightsail_instance_public_ports.myserver-sig-public-ports
Terraform Basics
We use the AWS provider.
Resources are services like EC2 instances, S3 buckets, and VPCs.
Variables and Outputs are used to pass information between resources.
Data Sources are used to fetch information from external sources.
Terraform Commands
terraform init
terraform validate
terraform plan
terraform apply
terraform destroy
Code pipeline & Docker hub
Prefer using images from ecr instead of dockerhub for security reasons.
FROM public.ecr.aws/docker/library/node:20-bullseye
Advanced Topics
Modules are used to organize and reuse code.
State Management is the process of storing the state of your infrastructure.
Provisioners are used to execute scripts on resources.
Workspaces are used to manage multiple states of the same infrastructure.
Importing Existing Infrastructure can be done with the terraform import command.