Gitea #143, maintainer's instruction. The HBONE port and the redirected probe source are ISTIO CONSTANTS, not standards, so they move from template literals into values with documented defaults - an operator can then correct them when Istio changes a number, without waiting for a chart release. One object under one "enabled", so the two halves still cannot be set separately; two values could drift apart, which is what this design exists to prevent. Every read is null-safe (#99), so a deleted object or one carrying only "enabled: true" falls back to the defaults declared here rather than dereferencing nil - the defect #136 shipped one value away. Provenance now written on each constant: 15008 is Istio's HBONE port, not IANA-registered for this and unknown to Kubernetes; 169.254.7.127 is link-local (RFC 3927, never routed), its IPv6 counterpart carries the same digits plus 1337, and neither the NetworkPolicy API nor the kubelet knows the address - only Istio's data plane rewrites the probe source onto it. Both read for ztunnel 1.30.6, and a change in either fails silently. The exception in ci/run-networkpolicy-test.sh stays pinned to the numbers that test names, and additionally asserts this chart declares the same defaults - never "whatever the value says", which would let a mistyped port in through a configurable field. No version change: nothing is published yet, the default is still off, and the render at defaults is byte-identical - re-diffed against origin/main.
420 lines
21 KiB
YAML
420 lines
21 KiB
YAML
# Scale the whole chart down without uninstalling it: scaleDown: true renders
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# every Deployment/StatefulSet with replicas: 0 (and suspends CronJobs) and
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# takes precedence over any per-workload replicas value. PVCs, Secrets and
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# Services stay in place; scaleDown: false brings the workloads back up.
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scaleDown: false
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# Replica count for this workload; 0 is allowed and scales it down.
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# The chart-global scaleDown flag takes precedence.
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replicas: 1
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# This is for setting up a service more information can be found here: https://kubernetes.io/docs/concepts/services-networking/service/
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service:
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# This sets the service type more information can be found here: https://kubernetes.io/docs/concepts/services-networking/service/#publishing-services-service-types
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type: ClusterIP
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# This sets the ports more information can be found here: https://kubernetes.io/docs/concepts/services-networking/service/#field-spec-ports
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port: 80
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# This block is for setting up the ingress for more information can be found here: https://kubernetes.io/docs/concepts/services-networking/ingress/
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ingress:
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# MUTUALLY EXCLUSIVE WITH httpRoute.enabled - the render aborts when both are
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# true, and the message names both value paths.
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enabled: false
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# Ingress class; set to "" to omit ingressClassName from the rendered Ingress.
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# NOT READ IN GATEWAY MODE: the class is a property of the Gateway there, and
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# the Gateway belongs to the platform.
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className: nginx
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# NOT READ IN GATEWAY MODE either, and this is the one to be aware of: the
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# Gateway API has no annotation channel for controller behaviour, so
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# everything put here is simply gone in that mode. This chart sets nothing
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# itself, and the installation this repository serves does not deploy
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# homeassistant at all (checked 2026-10-12), so there is no operator-supplied
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# annotation here today that the switch would drop - unlike its siblings in
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# the same sweep. That is an absence of evidence about this installation, not
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# a guarantee about yours: whatever you put here disappears in Gateway mode.
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annotations: {}
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# kubernetes.io/ingress.class: nginx
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# kubernetes.io/tls-acme: "true"
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# THE PUBLIC NAMES OF THIS RELEASE, AND READ IN BOTH MODES.
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#
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# This chart is the documented ingress exception (README): it keeps upstream's
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# flexible host list rather than the repository's required
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# domain/clusterIssuer pair, and that exception stays. The consequence for
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# Gitea #114 is that httpRoute has NO hostnames key - a chart-global hostname
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# list could not say which host entry, and therefore which set of paths, it
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# belonged to. So this list is where the hostnames live in BOTH modes, and in
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# Gateway mode the chart renders ONE HTTPRoute PER ENTRY, with one rule per
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# path of that entry.
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#
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# pathType IN GATEWAY MODE, because the default below is the awkward value.
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# Ingress has Exact, Prefix and ImplementationSpecific; the Gateway API has
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# Exact, PathPrefix and RegularExpression. Exact and Prefix map cleanly.
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# ImplementationSpecific means "ask the controller" and has NO counterpart,
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# so:
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# - on the path "/" it is rendered as PathPrefix (every controller treats a
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# root ImplementationSpecific path as a prefix match, so the default
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# below works in Gateway mode unchanged);
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# - on ANY OTHER path the render ABORTS and asks you to say which you mean.
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# In ingress-nginx an ImplementationSpecific sub-path is a REGEX and
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# PathPrefix is not one, so mapping it silently would change how the path
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# matches while the render stayed green.
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# RegularExpression is deliberately not offered: its support level is
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# Implementation-specific and would bind this chart to one Gateway
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# implementation.
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hosts:
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- host: chart-example.local
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paths:
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- path: /
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pathType: ImplementationSpecific
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# NOT READ IN GATEWAY MODE: the certificate sits on the Gateway's listener.
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tls: []
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# - secretName: chart-example-tls
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# hosts:
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# - chart-example.local
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# THE GATEWAY-API ALTERNATIVE TO THE INGRESS (Gitea #114).
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#
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# Mutually exclusive with ingress.enabled - the render aborts when both are
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# true. The chart renders ONLY HTTPRoutes with parentRefs: no Gateway, no
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# class, no Certificate, and no implementation-specific policy object. Class
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# and certificate sit on the Gateway and its listeners and belong to the
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# platform (cluster-config), which is what keeps the Gateway implementation
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# replaceable without touching this chart again.
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#
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# TWO KEYS ONLY, and the missing third one is deliberate: there is no
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# httpRoute.hostnames here, because this chart has no ingress.domain either.
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# The hostnames and the paths come from ingress.hosts above - see the comment
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# there, including the pathType mapping. This is the freesailarr shape from
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# group 2 of the sweep, for the same reason.
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#
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# ONE HTTPRoute PER ENTRY of ingress.hosts, named
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# <release>-homeassistant-httproute for the first and ...-httproute-<index> for
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# the rest. REORDERING ingress.hosts RENAMES ROUTES and so deletes and
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# recreates them on the next upgrade instead of editing them - harmless,
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# because a route holds no state and no certificate, but worth knowing before
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# it looks like a bug.
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#
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# THE GATEWAY-API CRDs MUST BE PRESENT. The chart cannot detect them
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# (.Capabilities.APIVersions is unreliable at template time) and an HTTPRoute
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# without them fails at install, so this is a value and not a guess.
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httpRoute:
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enabled: false
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# The Gateway(s) EVERY route of this release attaches to - a platform object,
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# usually in another namespace, whose listener must allow this namespace in
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# allowedRoutes. Entries are the Gateway API's ParentReference (name, and
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# optionally namespace, sectionName, port, group, kind), passed through
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# unchanged:
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#
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# parentRefs:
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# - name: public
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# namespace: gateway
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# sectionName: https
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#
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# REQUIRED while httpRoute.enabled is true - the render aborts on an empty
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# list, because a route without a parent is created, is valid and routes
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# nothing, with no event to say so. The same list is used for every route
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# this chart renders; the hosts differ, the Gateway does not.
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parentRefs: []
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# Documented deviation from the repo-wide hardening standard: the official
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# Home Assistant container must start as root — it boots via the s6-overlay
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# init system, which performs its setup as uid 0 (the image supports no
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# non-root user), so runAsNonRoot/runAsUser are deliberately not set.
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# Everything else is hardened: no privilege escalation, all capabilities
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# dropped and a read-only root filesystem with writable emptyDirs for
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# /tmp and /run (s6-overlay state). NET_RAW is added back because Home
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# Assistant's device discovery (DHCP watcher, ping/arp integrations) uses
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# raw sockets and logs "Operation not permitted" without it.
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securityContext:
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pod: {}
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container:
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allowPrivilegeEscalation: false
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readOnlyRootFilesystem: true
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capabilities:
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drop:
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- ALL
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add:
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- NET_RAW
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resources:
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# Limits are optional: memory and ephemeral-storage limits default to
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# limitFactor x the request, an explicitly set limit always wins, and a
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# CPU limit is only set when configured explicitly under "limits".
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limitFactor: 3
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requests:
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cpu: 0.2
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memory: 512Mi
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ephemeralStorage: 128Mi
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# This is to setup the liveness, readiness and startup probes more information can be found here: https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/
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livenessProbe:
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httpGet:
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path: /
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port: http
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periodSeconds: 10
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timeoutSeconds: 5
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failureThreshold: 3
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readinessProbe:
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httpGet:
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path: /
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port: http
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periodSeconds: 10
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timeoutSeconds: 5
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failureThreshold: 3
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# The startup probe gates liveness/readiness. Home Assistant can take a while to
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# start up, so grant a generous budget: 10s * 30 = 300s.
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startupProbe:
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httpGet:
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path: /
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port: http
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periodSeconds: 10
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timeoutSeconds: 5
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failureThreshold: 30
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# Extra environment variables, appended to the ones the chart always sets.
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# Values are rendered through tpl; value, secretKeyRef and configMapKeyRef
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# forms are supported.
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env: []
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# Additional volumes on the output Deployment definition.
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volumes: []
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# - name: foo
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# secret:
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# secretName: mysecret
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# optional: false
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# Additional volumeMounts on the output Deployment definition.
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volumeMounts: []
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# - name: foo
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# mountPath: "/etc/foo"
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# readOnly: true
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nodeSelector: {}
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tolerations: []
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affinity: {}
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core:
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timezone: "UTC"
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storage:
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size: 5Gi
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storageClass: "default"
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# Must include the following keys:
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# - config
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# - http-config
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# - recorder-config
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#
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# Changing the op:// path below IS covered: the StatefulSet carries a
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# checksum/secret-ref annotation over the rendered OnePasswordItem, so pointing
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# this value at a different vault item restarts the pod.
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#
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# Known limitation (#82): changing the CONTENT of that item in the vault does
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# NOT restart Home Assistant. The operator updates the Kubernetes Secret, but
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# the running pod keeps the old files - they are mounted with subPath, which the
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# kubelet never refreshes, and Home Assistant reads its configuration only at
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# start. The change then takes effect at some unrelated later restart, possibly
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# months afterwards, and a broken value surfaces long after the edit that caused
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# it. That is especially likely for this release, which is currently kept at
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# zero replicas via scaleDown: whoever brings it back up gets whatever the vault
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# holds at that moment.
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#
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# The checksum/config mechanism the other charts use cannot close this gap:
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# Helm never sees the content (the operator fills the Secret in-cluster after
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# rendering), so there is nothing to hash. The operator's own
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# "operator.1password.io/auto-restart" annotation does not close it either - it
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# only ever restarts Deployments, never StatefulSets. Verified against
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# onepassword-operator 1.12.0: pkg/onepassword/secret_update_handler.go lists
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# exactly one workload type (appsv1.DeploymentList), and the PR adding
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# StatefulSets is still open. Setting the annotation here would look like a fix
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# and do nothing, so this chart deliberately does not set it.
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#
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# After changing the item, restart Home Assistant by hand:
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# kubectl rollout restart statefulset <release>-homeassistant-sfs
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secrets:
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configSecretRef: null
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# ---------------------------------------------------------------------------
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# NetworkPolicy (Gitea #5). On by default. The reference implementation with
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# the full reasoning is template-chart; the convention is in README, "Chart
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# style guidelines", and the operator's view on this chart's wiki page.
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# ---------------------------------------------------------------------------
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networkPolicy:
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# WHAT THIS POLICY ALLOWS: inbound 8123 only. THERE IS NO EGRESS SECTION, and
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# that is the decision in this chart rather than an omission.
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#
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# Home Assistant's outbound traffic is the union of every integration enabled
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# in a release: mDNS/SSDP discovery (5353/UDP, 1900/UDP), MQTT (1883/8883), a
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# Zigbee or Z-Wave bridge on whatever port its firmware chose, ESPHome (6053),
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# printers, speakers, TVs, inverters, cloud APIs on 443, NTP on 123/UDP. A
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# chart cannot know that set, a cap would protect little - the devices sit on
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# the node's own LAN - and it would break integrations one at a time, months
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# apart, each looking like a flaky device rather than like a policy. So
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# policyTypes names Ingress only, for the same reason valkey names Ingress
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# only: a rule that has to be widened until it permits everything makes the
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# object look stricter than it is.
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#
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# An installation that wants an egress cap should write one against its own
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# integrations, at release level, where they are visible.
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#
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# Inbound 8123 is not restricted by source in the default (probe port), and a
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# policy is only a boundary where the CNI enforces one.
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enabled: true
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# Namespaces whose pods may reach this workload, in addition to the release's
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# own namespace, which is always allowed. Empty means: own namespace only.
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#
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# Matched on the "kubernetes.io/metadata.name" label Kubernetes sets on every
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# namespace itself, so no labelling work is needed on a namespace this chart
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# does not own - and no typo protection either: a name that does not exist
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# matches nothing and is silently ineffective. Note the granularity: an entry
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# opens the port to EVERY pod in that namespace.
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allowedNamespaces: []
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# Source CIDRs allowed to reach port 8123, which is the port all three probes address.
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#
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# EMPTY MEANS OPEN, NOT BLOCKED. With no entry that rule is rendered WITHOUT a
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# "from" selector, so the port is reachable from anywhere the CNI routes to -
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# inside the cluster, since it carries no NodePort.
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#
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# That is the deliberate choice between two bad defaults. The kubelet's probes
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# originate from the IP of the WORKER NODE running the pod, an address this
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# chart cannot know and must not guess: a CIDR that excludes the real node
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# blocks every probe, the pod never becomes Ready, the rollout times out, and
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# the symptom reads as a broken application rather than as a policy.
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#
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# Narrow it by listing the worker node IPs (e.g. ["10.0.1.11/32"]) - and mind
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# the companion trap: once this list is non-empty the rule IS restricted, so
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# everything else that needs the port has to be in it. The chart adds the own
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# namespace and allowedNamespaces to the same rule for exactly that reason.
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probeSources: []
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# The policy's INBOUND side. Mind the three names that overlap as substrings,
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# because a search for "ingress" matches all of them and they are different
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# things:
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#
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# ingress (top level) the Ingress OBJECT this chart
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# renders - host, TLS, className
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# networkPolicy.ingress this block: what the policy lets IN
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# networkPolicy.ingressController the SOURCE SELECTOR for the ingress
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# controller's pods. A SIBLING of this block
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# and NO PART OF IT, despite the name.
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ingress:
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# Opens the pod for Istio's ambient mesh (Gitea #143). OFF by default and
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# additive: while it is false this chart renders byte for byte as it did
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# before the value existed.
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#
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# IT RENDERS TWO THINGS, and that they come together is the point:
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#
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# 1. 15008/TCP inbound - ztunnel's HBONE tunnel. Every inbound mesh
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# connection arrives on it, and ambient "does not and will never bypass
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# Kubernetes NetworkPolicy enforcement", so without this port a pod
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# whose namespace has joined the mesh is unreachable.
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# 2. 169.254.7.127/32 as an additional peer - but ONLY where the rule
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# restricts sources at all, which here means probeSources is non-empty.
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# Inside the mesh the kubelet's probes are redirected and no longer come
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# from the worker node's address.
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#
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# WHY ONE SWITCH AND NOT TWO: point 2 is the one nobody thinks of. Whoever
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# adds "15008" to a port list by hand writes a policy that passes review, and
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# the first time probeSources is narrowed every probe is dropped - the pod
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# never becomes Ready and the symptom reads as a broken application rather
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# than as a policy. A switch whose halves can only be had together cannot be
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# set halfway, which is why this is a named intention and not a port list.
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#
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# TWO THINGS IT DOES NOT PROVE:
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# - That 15008 alone is enough. That comes from Istio's documentation;
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# measured on this cluster is only which listeners ztunnel opens.
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# Provable at the first namespace to join the mesh - none carries
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# istio.io/dataplane-mode yet.
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# - That the probe-source half works. probeSources is empty in every chart
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# here, so no release reaches that branch. CI proves its render, not its
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# effect.
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#
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# Note where the port lands: it joins the rule that carries the probe port,
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# so once probeSources restricts that rule, 15008 is restricted with it.
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# Whether ztunnel needs a peer of its own is open - it runs with its own pod
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# IPs in istio-system (measured: no hostNetwork on the DaemonSet, Istio
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# 1.30.6), so if one proves necessary it is expressible as a
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# namespaceSelector plus podSelector and needs no unknowable node CIDR.
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# BOTH NUMBERS BELOW ARE ISTIO CONSTANTS, NOT STANDARDS, and they are values
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# rather than template literals for exactly that reason: a vendor constant
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# can change, and an operator should be able to correct it without waiting
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# for a chart release. Their provenance is written on each one.
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#
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# DELETING THIS OBJECT IS SAFE. Every read falls back to the defaults
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# declared here (#99), so "ambientMesh: null", or an object carrying only
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# "enabled: true", renders the documented defaults instead of failing.
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ambientMesh:
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# The switch. Everything else here is inert while it is false, and the
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# chart renders exactly as it did before the object existed.
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enabled: false
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# ISTIO'S HBONE PORT. A constant Istio chose, not a standard: not
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# registered with IANA for this, prescribed by no protocol, and unknown to
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# Kubernetes. Read for ztunnel 1.30.6 (measured on this cluster: ztunnel
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# opens [::]:15008 as its inbound listener).
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#
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# If Istio changes it, a pod in the mesh cannot be reached. Change it here
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# in all 30 charts AND in the pinned expectation inside
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# ci/run-networkpolicy-test.sh - the test is deliberately what forces
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# someone to look, because the exception it grants this port is pinned to
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# the number IT knows and not to whatever this value says. A value-driven
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# exception would let a mistyped port through, which is the hole design A
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# of #143 was rejected for.
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#
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# NOT MEASURED: that this port ALONE suffices comes from Istio's
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# documentation. Measured here is only which listeners ztunnel opens, and
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# no namespace carries istio.io/dataplane-mode yet.
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port: 15008
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# SOURCES THE KUBELET'S PROBES ARRIVE FROM ONCE ISTIO HAS REDIRECTED THEM.
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#
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# NOT THE SAME VALUE AS networkPolicy.probeSources one level up, and the
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# two are easy to confuse, so:
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#
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# networkPolicy.probeSources
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# YOUR worker node CIDRs. Empty by default, and empty means the
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# probe rule is OPEN. The chart cannot know these addresses.
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# networkPolicy.ingress.ambientMesh.redirectedProbeSources
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# ISTIO's rewrite address. Shipped filled, because unlike the node
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# IPs it is a constant the chart CAN know. Only rendered where the
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# rule above is restricted, i.e. where probeSources is non-empty.
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#
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# WHERE 169.254.7.127 COMES FROM - vendor magic, not protocol:
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#
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# - LINK-LOCAL, 169.254.0.0/16 (RFC 3927): a range reserved for
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# node-local use that is never routed - exactly the range one picks a
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# vendor's magic address out of.
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# - Istio's IPv6 counterpart gives it away:
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# fd16:9254:7127:1337:ffff:ffff:ffff:ffff carries the SAME DIGITS
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# (9254:7127 is 169.254.7.127) plus 1337. Numbers built that way are
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# vendor constants, not protocols.
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# - KUBERNETES DOES NOT KNOW THIS ADDRESS. Neither the NetworkPolicy API
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# nor the kubelet has any notion of it; only Istio's own data plane
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# rewrites the probe source onto it.
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#
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# Read for ztunnel 1.30.6. IF ISTIO CHANGES IT, THE FAILURE IS SILENT:
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# probes would be dropped, and only where probeSources is non-empty - which
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# is nowhere in this repository today - so nothing here and nothing in
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# Kubernetes would report it. What to re-check then: the address Istio's
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# release notes name for probe redirection, this list in all 30 charts, and
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# the pinned expectation in ci/run-networkpolicy-test.sh.
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#
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# A LIST, not a string, and the one case where that does not contradict "a
|
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# constant, not a configuration": on a DUAL-STACK cluster BOTH entries are
|
|
# needed at the same time, not one of two. This cluster is SingleStack
|
|
# IPv4, so the IPv6 counterpart is left out - an ipBlock of the wrong
|
|
# family is accepted by the API server and matches nothing. Add it
|
|
# ALONGSIDE, never instead, if the cluster gains IPv6.
|
|
#
|
|
# Clearing this list restores the default rather than removing the ipBlock,
|
|
# deliberately: the two halves of this switch are not separable. To not
|
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# open the port at all, set enabled: false.
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|
#
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# UNPROVEN IN OPERATION: probeSources is empty in every chart here, so no
|
|
# release reaches this branch. CI proves the render, not the effect.
|
|
redirectedProbeSources:
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|
- 169.254.7.127/32
|
|
|