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homelab/k8s/applications/temporal/temporal-values.yaml
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# k8s/temporal/temporal-values.yaml
# Temporal — workflow engine
# Uses external CNPG PostgreSQL for persistence (ddb-cluster)
# Visibility via same PostgreSQL instance, separate database.
#
# IMPORTANT — chart schema note (root-caused after Postgres never actually
# taking effect despite looking configured):
# We're pinned to temporalio/helm-charts @ 0.74.0 (see targetRevision in
# k8s/argocd/apps/60-applications.yaml), which uses the OLD flat persistence
# schema:
# server.config.persistence.<default|visibility>.driver: "sql"|"cassandra"
# server.config.persistence.<default|visibility>.sql: {...}
# NOT the newer `datastores:`-wrapped schema
# (server.config.persistence.datastores.<store>.sql) shown in the current
# chart's values/values.postgresql.yaml example - that key was introduced in
# a later major version and doesn't exist in 0.74.0. Helm doesn't validate
# unknown keys, so a `datastores:` block here is silently a no-op: Temporal
# would keep defaulting to Cassandra (with empty hosts: []) regardless of
# anything nested inside it. Verified via `helm template` against the actual
# 0.74.0 chart before writing this file - see chat history for the
# side-by-side proof (rendered manifest showed CASSANDRA_HOST env vars and
# temporal-cassandra-tool commands using the old datastores:-based values).
#
# Likewise `schema.setup.enabled` / `schema.update.enabled` /
# `schema.createDatabase.enabled` are the real toggles for the schema-setup
# Job (all default true) - there is no `jobs.autoSetup` key in this chart.
# ── Disable every bundled/optional sub-chart ─────────────────────────────────
# postgresql/mysql: never enable - we never want the chart to deploy its own
# DB, only to know how to talk to our external CNPG instance (which happens
# via server.config.persistence.*.sql below, independent of these flags).
postgresql:
enabled: false
mysql:
enabled: false
cassandra:
enabled: false
elasticsearch:
enabled: false
prometheus:
enabled: false
grafana:
enabled: false
# ── Schema setup/update Jobs ──────────────────────────────────────────────────
# The `temporal` and `temporal_visibility` databases are provisioned
# declaratively by CNPG Database CRs (k8s/data/temporal-database.yaml,
# temporal-visibility-database.yaml), so createDatabase stays disabled (the
# `temporal` role also lacks CREATEDB). setup/update run temporal-sql-tool as
# the `temporal` owner against those existing DBs to install and migrate the
# Temporal server schema — without them both DBs have zero tables and the
# server dies on "no usable database connection found" (no schema_version row).
schema:
createDatabase:
enabled: false
setup:
enabled: true
update:
enabled: true
# ── Temporal server config (PostgreSQL persistence) ──────────────────────────
server:
replicaCount: 1
# temporalio/server:1.30.0+ dropped the `dockerize` binary and switched to
# built-in sprig config templating. The chart still defaults to the legacy
# configMapsToMount: "dockerize" + setConfigFilePath: false, which produces a
# config the 1.30 server never loads — it then falls back to its embedded
# env-only template (Cassandra default) and dies with
# "Persistence.DataStores[default](value).Cassandra.Hosts: zero value".
# Switch to the sprig ConfigMap and point the server at it (chart's own
# recommendation for 1.30.0+ images; sprig mode requires setConfigFilePath).
configMapsToMount: "sprig"
setConfigFilePath: true
jobService:
enabled: false
affinity:
podAntiAffinity:
preferredDuringSchedulingIgnoredDuringExecution:
- weight: 100
podAffinityTerm:
labelSelector:
matchLabels:
app.kubernetes.io/instance: temporal
topologyKey: kubernetes.io/hostname
config:
logLevel: "info"
persistence:
defaultStore: default
visibilityStore: visibility
numHistoryShards: 512
default:
driver: "sql"
sql:
driver: "postgres12"
host: "ddb-cluster-rw.ddb.svc.cluster.local"
port: 5432
database: "temporal"
user: "temporal"
# existingSecret + secretKey: point directly at the CNPG-generated
# Secret (kubernetes.io/basic-auth, keys: username/password/...)
# rather than duplicating the password in git as plaintext. When
# existingSecret is set the chart's own server-secret.yaml Secret
# template is skipped entirely (see templates/server-secret.yaml:
# `not $driverConfig.existingSecret` guards its creation).
existingSecret: "temporal-db-role"
secretKey: "password"
maxConns: 20
maxIdleConns: 10
maxConnLifetime: "1h"
connectAttributes:
tx_isolation: "READ-COMMITTED"
visibility:
driver: "sql"
sql:
driver: "postgres12"
host: "ddb-cluster-rw.ddb.svc.cluster.local"
port: 5432
database: "temporal_visibility"
user: "temporal"
existingSecret: "temporal-db-role"
secretKey: "password"
maxConns: 20
maxIdleConns: 10
maxConnLifetime: "1h"
service:
type: ClusterIP
# ── Temporal Web UI ────────────────────────────────────────────────────────
web:
replicaCount: 1
service:
type: ClusterIP
# ── Ingress ────────────────────────────────────────────────────────
ingress:
enabled: false