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GCP to AWS

gcp-to-aws-integration

Demo

asciicast

Setup

Ensure you are logged into both GCP & AWS systems from your CLI before executing below terraform commands.

Verify GCP

gcloud auth login
gcloud auth application-default login

List projects and choose one.

gcloud projects list
gcloud config set project <PROJECT_NAME>

gcloud config list

Verify AWS

aws sts get-caller-identity

Integration

Connect to AWS systems from GCP Cloud. In this example, we will use GCP VM to connect with AWS resources.

export GCP_PROJECT_NAME=$(gcloud config list --format="value(core.project)")
terraform init
terraform plan -var gcp_project_name=$GCP_PROJECT_NAME
terraform apply -var gcp_project_name=$GCP_PROJECT_NAME

Post terraform apply, copy the ssh command from the output and login to the GCP VM.

  1. Some pre-requisities will be installed
  2. Connectivity to the AWS systems will be established
  3. Test it by running, aws sts get-caller-identity

NOTE

It's observed sometimes, GCP VMs aren't executing the scripts in /etc/profile.d/ on first ssh login. If that happens with you, there are two ways to fix it.

  1. Exit the shell and run the gcloud ssh command again.
  2. Manually, run the script that will configure the shell to connect with AWS services - bash /etc/profile.d/set_env_vars.sh

Destroy resources

terraform destroy -var gcp_project_name=$GCP_PROJECT_NAME