SAKeBomb

SAKe(y)Bomb Create Short Lived Service Account Keys

This utility has two commands:

• Generate
• Create

Usage

Use it to mitigate risks of long-lived Service Account Keys

Generate

It generates the key pair in PEM format, the public key can be uploaded directly via

Create

It generates keys locally and pushes the public key to GCP. The private they can be used to sign JWTs or embedded in a JSON file (see How to create json SA key from pem file)

Requirements

This command needs to have access to GCP to upload the public key (roles/iam.serviceAccountKeyAdmin)

How to create json SA key from pem file

Create

jq -n \
  --arg PRIVATE_KEY "$(cat private.pem)" \
  --arg PROJECT_ID "<YOUR-GCP-PROJECT_ID>" \
  --arg CLIENT_EMAIL "<THE-SERVICE-ACCOUNT-EMAIL>" \
  --arg CLIENT_ID "<THE-SERVICE-ACCOUNT-UNIQUE-ID>" \
  --arg PRIVATE_KEY_ID "<THE-SERVICE-ACCOUNT-KEY-ID>" \
  '{
      "type": "service_account",
      "project_id": $PROJECT_ID,
      "private_key_id": $PRIVATE_KEY_ID,
      "private_key": $PRIVATE_KEY,
      "client_email": $CLIENT_EMAIL,
      "client_id": $CLIENT_ID,
      "auth_uri": "https://accounts.google.com/o/oauth2/auth",
      "token_uri": "https://oauth2.googleapis.com/token",
      "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
      "client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/\($CLIENT_EMAIL)"
  }' > private-key.json