d-OAuth-Server/deploy/k8s/secret.yaml

# App secrets (task 46). PLACEHOLDERS ONLY — never commit real values.
#
# Consumption: the Deployment and the migrate Job project every key below into
# a tmpfs volume at `/run/secrets` (`defaultMode: 0400`, group 65532 via the
# pod `fsGroup`) and read them through `*_FILE` variables, so no secret enters
# the process environment (`/proc/self/environ`, children, crash dumps,
# `docker inspect`):
#
#   token-pepper        -> D_OAUTH_TOKEN_PEPPER_FILE
#   totp-encryption-key -> D_OAUTH_TOTP_ENCRYPTION_KEY_FILE
#   database-password   -> D_OAUTH_DATABASE__PASSWORD_FILE
#   redis-password      -> D_OAUTH_REDIS__PASSWORD_FILE
#
# The passwordless DSNs (host/user/db/sslmode and the Redis address) are
# non-secret and live in `configmap.yaml`; only the passwords are here. A
# `kubectl exec` into a running pod therefore reads no credential from the
# environment — only the 0400 files, which the container user already holds.
# `scripts/check_manifests.py` fails the build if a workload injects any secret
# through a `secretKeyRef` env instead.
#
# In-cluster Redis is expected to run with AUTH (`requirepass`); the password
# is injected into the bare `redis://host:port` URL at connect time. A Redis
# deployment without AUTH must enable it, or the workload fails closed on the
# missing password file.
#
# Production rule: this file's keys are replaced by the secret manager
# (external-secrets / sealed-secrets / vault agent). The manifests only ever
# reference keys, never values; `scripts/check_manifests.py` fails the build
# if a placeholder leaks outside this file, if a PEM block appears in any
# manifest, or if a secret-shaped key lands in the ConfigMap.
#
# To provision: `kubectl create secret generic d-oauth-secrets -n d-oauth
#   --from-literal=database-password='...' --from-literal=redis-password='...'
#   ...` (or the external-secret equivalent), then delete this placeholder
# file from the applied set.
apiVersion: v1
kind: Secret
metadata:
  name: d-oauth-secrets
  namespace: d-oauth
  labels:
    app.kubernetes.io/name: d-oauth-server
    app.kubernetes.io/part-of: d-oauth
type: Opaque
stringData:
  # Postgres password, split out of the passwordless DSN in configmap.yaml.
  database-password: "REPLACE_ME__postgres-password"
  # Redis AUTH password, injected into the bare redis:// URL at connect time.
  redis-password: "REPLACE_ME__redis-password"
  # 256-bit server-side pepper for opaque-token hashing. Losing it invalidates
  # every live token; rotate per docs/OPERATIONS.md.
  token-pepper: "REPLACE_ME__32-bytes-of-random"
  # 256-bit key encrypting TOTP secrets at rest.
  totp-encryption-key: "REPLACE_ME__32-bytes-of-random"