writeCredentialsToVault distributes the generated postgres + rustfs
service-credentials into the Vault `foundation` kv-v2 mount at the CONTRACT_002
paths, over docker-exec/SSH (ADR-007) since 8200 isn't reachable from the
operator. Secret values go in as a JSON object on the container's stdin (never
argv); the root token from the vault-init output authenticates. dependsOn
vault.init = GATE A. Idempotent: kv-v2 enable is guarded, `vault kv put`
overwrites. Forgejo crypto secrets, the runner token, registry tokens, and backup
creds are written by their own tasks (T08/T10/T12).
Live on cx33 Helsinki: foundation/{postgres,rustfs}/service-credentials present
with every CONTRACT_002 camelCase key non-empty; mount is kv v2. Acceptance T06
met for the data-plane slice.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Andreas Niemann
fa242e4e76