helm-charts/matrix-synapse/values.yaml

# Scale the whole chart down without uninstalling it: scaleDown: true renders
# every Deployment/StatefulSet with replicas: 0 (and suspends CronJobs) and
# takes precedence over any per-workload replicas value. PVCs, Secrets and
# Services stay in place; scaleDown: false brings the workloads back up.
scaleDown: false

secrets:
  configSecretRef: null

matrix:
  # Replica count for this workload; 0 is allowed and scales it down.
  # The chart-global scaleDown flag takes precedence.
  replicas: 1
  serverName: null
  timezone: UTC
  # The upstream image (ghcr.io/element-hq/synapse) only drops privileges
  # itself (via gosu, driven by UID/GID env vars) when started as root; with
  # an explicit non-root runAsUser it skips that step and runs directly as
  # that user. Synapse writes to /data and /media_store (both on the PVC) and
  # to /tmp (mounted as an emptyDir by the chart), so the root filesystem
  # stays read-only. The uid/gid 1000 matches the previous gosu default, so
  # existing PVC data stays accessible.
  securityContext:
    pod:
      runAsNonRoot: true
      runAsUser: 1000
      runAsGroup: 1000
      fsGroup: 1000
      fsGroupChangePolicy: Always
    container:
      allowPrivilegeEscalation: false
      readOnlyRootFilesystem: true
      runAsNonRoot: true
      capabilities:
        drop:
          - ALL
  livenessProbe:
    httpGet:
      path: /health
      port: http
      scheme: HTTP
    periodSeconds: 10
    timeoutSeconds: 5
    failureThreshold: 3
  readinessProbe:
    httpGet:
      path: /health
      port: http
      scheme: HTTP
    periodSeconds: 10
    timeoutSeconds: 5
    failureThreshold: 3
  # The startup probe gates liveness/readiness. Synapse can take a
  # while to start (migrations, cache warmup): budget 10s * 30 = 300s.
  startupProbe:
    httpGet:
      path: /health
      port: http
      scheme: HTTP
    periodSeconds: 10
    timeoutSeconds: 5
    failureThreshold: 30
  # Extra environment variables, appended to the ones the chart always sets.
  # Values are rendered through tpl; value, secretKeyRef and configMapKeyRef
  # forms are supported.
  env: []
  resources:
    # Limits are optional: memory and ephemeral-storage limits default to
    # limitFactor x the request, an explicitly set limit always wins, and a
    # CPU limit is only set when configured explicitly under "limits".
    limitFactor: 3
    requests:
      memory: "1Gi"
      cpu: "1"
      ephemeralStorage: "1Gi"
  delegation:
    # Replica count for this workload; 0 is allowed and scales it down.
    # The chart-global scaleDown flag takes precedence.
    replicas: 1
    enabled: false
    serverUrl: null
    # Auxiliary image, pinned independently of appVersion (which tracks
    # Synapse). Reviewed alongside every app-version update round.
    image:
      repository: nginx
      tag: 1.30.4
    # The delegation nginx runs as the image's unprivileged nginx user
    # (uid 101) and listens on the unprivileged port 8080; pid file and temp
    # paths are redirected to the /tmp emptyDir by the mounted nginx.conf.
    securityContext:
      pod:
        runAsNonRoot: true
        runAsUser: 101
        runAsGroup: 101
      container:
        allowPrivilegeEscalation: false
        readOnlyRootFilesystem: true
        runAsNonRoot: true
        capabilities:
          drop:
            - ALL
    livenessProbe:
      httpGet:
        path: /.well-known/matrix/server
        port: http
        scheme: HTTP
      periodSeconds: 10
      timeoutSeconds: 3
      failureThreshold: 3
    readinessProbe:
      httpGet:
        path: /.well-known/matrix/server
        port: http
        scheme: HTTP
      periodSeconds: 10
      timeoutSeconds: 3
      failureThreshold: 3
    # The startup probe gates liveness/readiness. Startup budget = 5s * 30 = 150s.
    startupProbe:
      httpGet:
        path: /.well-known/matrix/server
        port: http
        scheme: HTTP
      periodSeconds: 5
      timeoutSeconds: 3
      failureThreshold: 30
    resources:
      # Limits are optional: memory and ephemeral-storage limits default to
      # limitFactor x the request, an explicitly set limit always wins, and a
      # CPU limit is only set when configured explicitly under "limits".
      limitFactor: 3
      requests:
        memory: "64Mi"
        cpu: "125m"
        ephemeralStorage: "50Mi"

storage:
  amount: 10Gi
  storageClass: longhorn-encrypted

ingress:
  domain: null
  clusterIssuer: null
  className: nginx
  # Extra annotations for the Ingress; merged with the cert-manager
  # cluster-issuer annotation the chart always sets.
  annotations: {}