helm-external-secrets/docs/snippets/gcpsm-sa-secret-store.yaml

apiVersion: external-secrets.io/v1
kind: SecretStore
metadata:
  name: demo-store
  namespace: demo
spec:
  provider:
    gcpsm:
      auth:
        secretRef:
          secretAccessKeySecretRef:
            name: gcp-sa-secret
            key: secret-access-credentials
      projectID: [PROJECT_ID]