Legion is offline. Vault needs a GCP-native home. This commit provisions
a 3-node Vault HA cluster on GCE e2-small VMs (us-central1 a/b/c) backed
by Raft consensus with GCP KMS auto-unseal already in place.
- vault-nodes.tf: 3 VMs with separate pd-ssd data disks (prevent_destroy),
IAP-only SSH firewall, Raft peer firewall (8201), global HTTPS LB for
vault.neuralplatform.ai with Google-managed cert, HTTP health checks
against /v1/sys/health
- vault/startup.sh: idempotent boot script — installs Vault from HashiCorp
APT repo, mounts/formats the data disk, writes Raft config with dynamic
retry_join peers resolved via gcloud metadata, starts vault.service
- vault-auth-gcp.tf: GCP Secret Manager secret for init script; outputs
the service account emails needed for GCP auth roles
- vault/configure-vault-auth.sh: post-init script to enable gcp auth
method, write marketing-policy and soma-policy, bind roles to Cloud Run
service account identities
After apply: set vault_lb_ip output as A record for vault.neuralplatform.ai
in Cloudflare, then run vault operator init on vault-node-1 to bootstrap.
Will Anderson