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Cleaning Up GCE Metadata: Removing Unused SSH Keys

Before Use

This script requires a Golang runtime environment to be set up on your machine.

How to Use

  1. There are two ways to authenticate with Google Cloud Platform (GCP) for this script:

  • gcloud CLI: If you have already set up the gcloud command-line tool and authenticated your account, you can proceed without further steps.

  • Service Account: You can authenticate using a service account by setting the GOOGLE_APPLICATION_CREDENTIALS environment variable. This variable should point to the path of the JSON key file for your service account. An example is provided below:

    export GOOGLE_APPLICATION_CREDENTIALS=<PATH/FOR/SERVICE_ACCOUNT/JSON>
  1. This script helps you remove unused SSH keys from the metadata of Compute Engine instances within a GCP project.
go run ./main.go -projectID=gcp-project-id -users=user1,user2,user3
  • projectID: (Required) The ID of your GCP project.
  • users: (Required) Comma-separated list of usernames for which you want to remove unused SSH keys.