# 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: # REQUIRED - op:// item path carrying "jdbc-url", "username" and "password". # This chart deploys NO database; all state lives in the external one, and # three datasource environment variables read these keys unconditionally. # Without the value the render aborts - required() in # urlaubsverwaltung-db.secret.yaml is the whole enforcement, and # values.schema.json cannot help here (README, guideline 12). databaseSecretRef: null # REQUIRED - op:// item path carrying "client-id", "client-secret", # "issuer-name", "issuer-uri", "jwt-issuer-uri" and "redirect-uri". This chart # offers no login path besides OIDC, and the identity provider is required at # boot, not at login: the application resolves /.well-known/ # openid-configuration while building its security beans, before the HTTP port # opens, and exits when it cannot. Without the value the render aborts - # required() in urlaubsverwaltung-oidc.secret.yaml is the whole enforcement, # and values.schema.json cannot help here (README, guideline 12). oidcSecretRef: null ingress: # Gates the whole Ingress template. Mutually exclusive with # httpRoute.enabled below (Gitea #114): with both true the render aborts, # naming both values. # # Guideline 1, checked in both directions for this chart: NOTHING outside the # two routing templates reads ingress.domain - no environment variable of the # application is derived from it, and UV_MAIL_APPLICATIONURL (the host in the # links inside notification mails) is a hardcoded placeholder, deliberately # not derived from it. So clusterIssuer AND domain are both free while both # routing modes are off; with either one on, domain is required and its # required() fires in whichever template renders. clusterIssuer is only ever # read by the Ingress - Gateway mode renders no Certificate. enabled: true clusterIssuer: null # The public hostname of this release. Read by the Ingress and - when # httpRoute.hostnames is empty - by the HTTPRoute. domain: null className: nginx # Extra annotations for the Ingress; merged with the cert-manager # cluster-issuer annotation the chart always sets. # # THESE HAVE NO COUNTERPART IN GATEWAY MODE. The Gateway API has no # annotation channel for controller behaviour, so anything configured here is # simply gone when httpRoute.enabled is used instead - it is then the # Gateway's business, or that of an implementation-specific policy object # this chart deliberately does not render. Nothing this chart needs lives # here by default. annotations: {} # Gateway-API alternative to the Ingress above (Gitea #114). Off by default, so # an existing release is unaffected; exactly one of ingress.enabled and # httpRoute.enabled may be true. # # The chart renders ONLY an HTTPRoute with parentRefs - no Gateway, no # gatewayClassName, no Certificate and no implementation-specific policy # object. Class and certificate belong to the Gateway and therefore to the # platform, which is what keeps this chart independent of whether the cluster # runs nginx-gateway-fabric, Cilium, Envoy Gateway or Istio. # # The Gateway-API CRDs must be installed in the cluster: the chart does not and # cannot detect them (.Capabilities.APIVersions is unreliable at template # time), so with httpRoute.enabled: true and no CRDs the INSTALL fails. httpRoute: enabled: false # The Gateway(s) this route attaches to - a platform object, usually in # another namespace, which must allow this namespace in its listener's # allowedRoutes. One entry per parent, the fields are the Gateway API's # ParentReference (name, and optionally namespace, sectionName, port, group, # kind), passed through unchanged: # # parentRefs: # - name: public # namespace: gateway # sectionName: https # # REQUIRED while httpRoute.enabled is true - the render aborts on an empty # list, because a route without a parent is created, is valid and routes # nothing, with no event to say so. parentRefs: [] # Empty means [ingress.domain], so the hostname has one source of truth. Set # explicitly only to publish under a different or an additional name - which # is how a migration from the Ingress runs: the HTTPRoute takes a second # hostname while the Ingress keeps ingress.domain. # # For THIS chart, mind that the OIDC redirect URI is a field of the 1Password # item and is registered at the identity provider - it does not follow the # hostname by itself, so publishing under a new name means updating both or # login fails on a redirect-uri mismatch while the pod stays green. hostnames: [] urlaubsverwaltung: # Replica count for this workload; 0 is allowed and scales it down. # The chart-global scaleDown flag takes precedence. replicas: 1 # The official image is built with Cloud Native Buildpacks and runs as the # non-root cnb user (uid 1002, gid 1001). /tmp is a writable emptyDir for # the JVM's temp/work files. securityContext: pod: runAsNonRoot: true runAsUser: 1002 runAsGroup: 1001 # RuntimeDefault applies the container runtime's default seccomp filter, # which blocks the syscalls a normal workload never makes. It sits in the # pod context on purpose: from here it covers every container in the pod # including init containers, while a container-level seccompProfile would # have to be repeated for each one (and silently missed on the next one # added). A container that genuinely needs a different filter can still # override it under securityContext.container, which wins over this value. seccompProfile: type: RuntimeDefault container: allowPrivilegeEscalation: false readOnlyRootFilesystem: true runAsNonRoot: true capabilities: drop: - ALL # HEALTH INDICATORS — TWO SETTINGS THE CHART FIXES IN THE TEMPLATE # # The chart sets these two as plain environment variables, not as values, # because urlaubsverwaltung.env below already overrides anything: # # MANAGEMENT_ENDPOINT_HEALTH_GROUP_READINESS_INCLUDE=readinessState,db # puts the datasource into the readiness group, so a database outage # takes the pod out of Ready instead of leaving it serving errors (#218). # The liveness group stays untouched on purpose — an outage must keep # traffic away, not restart the pod in a loop. # MANAGEMENT_HEALTH_MAIL_ENABLED=false # removes the mail indicator, which otherwise pins the aggregate # /actuator/health at 503 DOWN forever, because the chart's mail wiring # points at localhost:1025 where nothing listens (#217). # # THE CONSEQUENCE TO KNOW BEFORE IT BITES: whoever later configures real mail # delivery (SPRING_MAIL_HOST/SPRING_MAIL_PORT via urlaubsverwaltung.env) MUST # switch the indicator back on in the same change: # # env: # - name: MANAGEMENT_HEALTH_MAIL_ENABLED # value: "true" # # Left at false, /actuator/health keeps answering 200 while the configured # mail server is unreachable and no notification mail is delivered. The # setting trades a permanently false alarm for silence, and silence is only # correct as long as there is nothing to report about. # # That override repeats a name the chart already sets, and env is additive, so # it renders the variable twice. At INSTALL time both entries reach the pod and # the later one — yours — wins in the container. Added to an ALREADY INSTALLED # release it is lost instead: Kubernetes merges env by name, the pair collapses # to the chart's own entry, and helm still reports a successful upgrade. The # override does not fail loudly, it fails silently. See the "env IS ADDITIVE # ONLY" section of NOTES.txt — the switch has to go in at install time, and # after any such change the result belongs verified on the live Deployment. livenessProbe: httpGet: port: 8080 path: /actuator/health/liveness periodSeconds: 10 failureThreshold: 3 successThreshold: 1 timeoutSeconds: 5 readinessProbe: httpGet: port: 8080 path: /actuator/health/readiness periodSeconds: 5 failureThreshold: 3 successThreshold: 1 timeoutSeconds: 5 # The startup probe gates liveness/readiness. Spring Boot startup # (JVM + Liquibase migrations) gets a budget of 10s * 30 = 300s. startupProbe: httpGet: port: 8080 path: /actuator/health/liveness periodSeconds: 10 failureThreshold: 30 timeoutSeconds: 5 # 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: cpu: 0.1 memory: 768Mi ephemeralStorage: 10Mi # --------------------------------------------------------------------------- # NetworkPolicy (Gitea #5). On by default. The reference implementation with # the full reasoning is template-chart; the convention is in README, "Chart # style guidelines", and the operator's view on this chart's wiki page. # --------------------------------------------------------------------------- networkPolicy: # WHAT THIS POLICY ALLOWS: inbound 8080 only, and outbound DNS plus TCP 5432 # AND 3306 (the database - see below) and 443 (the OIDC provider, which this # application requires: there is no other login path). # # WHY BOTH DATABASE PORTS: the chart is handed a full JDBC URL inside a # 1Password item and never parses it, so it cannot tell PostgreSQL from # MariaDB - and this cluster runs both. Allowing only one would break half the # possible deployments on upgrade, and the symptom would be a connection # timeout inside a Java stack trace. A deliberate, small widening against a # large and silent failure. # # Inbound 8080 is not restricted by source in the default (probe port), and a # policy is only a boundary where the CNI enforces one. enabled: true # Namespaces whose pods may reach this workload, in addition to the release's # own namespace, which is always allowed. Empty means: own namespace only. # # Matched on the "kubernetes.io/metadata.name" label Kubernetes sets on every # namespace itself, so no labelling work is needed on a namespace this chart # does not own - and no typo protection either: a name that does not exist # matches nothing and is silently ineffective. Note the granularity: an entry # opens the port to EVERY pod in that namespace. allowedNamespaces: [] # Source CIDRs allowed to reach port 8080, which is the port all three probes address. # # EMPTY MEANS OPEN, NOT BLOCKED. With no entry that rule is rendered WITHOUT a # "from" selector, so the port is reachable from anywhere the CNI routes to - # inside the cluster, since it carries no NodePort. # # That is the deliberate choice between two bad defaults. The kubelet's probes # originate from the IP of the WORKER NODE running the pod, an address this # chart cannot know and must not guess: a CIDR that excludes the real node # blocks every probe, the pod never becomes Ready, the rollout times out, and # the symptom reads as a broken application rather than as a policy. # # Narrow it by listing the worker node IPs (e.g. ["10.0.1.11/32"]) - and mind # the companion trap: once this list is non-empty the rule IS restricted, so # everything else that needs the port has to be in it. The chart adds the own # namespace, the ingressController below and allowedNamespaces to the same rule for exactly that reason. probeSources: [] # The ingress controller allowed to reach the routed port once probeSources # restricts it. Rendered only while ingress.enabled is true, and only in # the restricted branch - with the default (open) rule the controller reaches # the port anyway. The two keys become ONE "from" entry and are therefore an # AND: pods carrying podLabels IN namespace. That is the point of having them # at all - the controller's namespace in allowedNamespaces would open the port # to every pod in kube-system. # # MEASURED ON THIS CLUSTER, NOT ASSUMED (2026-10-14): ingress-nginx is gone, # the only IngressClass is "traefik" and it is the default, and the controller # is the DaemonSet rke2-traefik in kube-system. The same Traefik serves the # Gateway API here, so this one source covers the Ingress and the HTTPRoute # path alike. A policy written against the wrong controller is accepted, looks # strict, and silently blocks all web traffic - and ingress.className says # nothing about it, because a class names an implementation, not the pods the # traffic comes from. ingressController: namespace: kube-system podLabels: app.kubernetes.io/name: rke2-traefik # The policy's INBOUND side. Mind the three names that overlap as substrings, # because a search for "ingress" matches all of them and they are different # things: # # ingress (top level) the Ingress OBJECT this chart # renders - host, TLS, className # networkPolicy.ingress this block: what the policy lets IN # networkPolicy.ingressController the SOURCE SELECTOR for the ingress # controller's pods. A SIBLING of this block # and NO PART OF IT, despite the name. ingress: # Opens the pod for Istio's ambient mesh (Gitea #143). OFF by default and # additive: while it is false this chart renders byte for byte as it did # before the value existed. # # IT RENDERS TWO THINGS, and that they come together is the point: # # 1. 15008/TCP inbound - ztunnel's HBONE tunnel. Every inbound mesh # connection arrives on it, and ambient "does not and will never bypass # Kubernetes NetworkPolicy enforcement", so without this port a pod # whose namespace has joined the mesh is unreachable. # 2. 169.254.7.127/32 as an additional peer - but ONLY where the rule # restricts sources at all, which here means probeSources is non-empty. # Inside the mesh the kubelet's probes are redirected and no longer come # from the worker node's address. # # WHY ONE SWITCH AND NOT TWO: point 2 is the one nobody thinks of. Whoever # adds "15008" to a port list by hand writes a policy that passes review, and # the first time probeSources is narrowed every probe is dropped - the pod # never becomes Ready and the symptom reads as a broken application rather # than as a policy. A switch whose halves can only be had together cannot be # set halfway, which is why this is a named intention and not a port list. # # TWO THINGS IT DOES NOT PROVE: # - That 15008 alone is enough. That comes from Istio's documentation; # measured on this cluster is only which listeners ztunnel opens. # Provable at the first namespace to join the mesh - none carries # istio.io/dataplane-mode yet. # - That the probe-source half works. probeSources is empty in every chart # here, so no release reaches that branch. CI proves its render, not its # effect. # # Note where the port lands: it joins the rule that carries the probe port, # so once probeSources restricts that rule, 15008 is restricted with it. # Whether ztunnel needs a peer of its own is open - it runs with its own pod # IPs in istio-system (measured: no hostNetwork on the DaemonSet, Istio # 1.30.6), so if one proves necessary it is expressible as a # namespaceSelector plus podSelector and needs no unknowable node CIDR. # BOTH NUMBERS BELOW ARE ISTIO CONSTANTS, NOT STANDARDS, and they are values # rather than template literals for exactly that reason: a vendor constant # can change, and an operator should be able to correct it without waiting # for a chart release. Their provenance is written on each one. # # DELETING THIS OBJECT IS SAFE. Every read falls back to the defaults # declared here (#99), so "ambientMesh: null", or an object carrying only # "enabled: true", renders the documented defaults instead of failing. ambientMesh: # The switch. Everything else here is inert while it is false, and the # chart renders exactly as it did before the object existed. enabled: false # ISTIO'S HBONE PORT. A constant Istio chose, not a standard: not # registered with IANA for this, prescribed by no protocol, and unknown to # Kubernetes. Read for ztunnel 1.30.6 (measured on this cluster: ztunnel # opens [::]:15008 as its inbound listener). # # If Istio changes it, a pod in the mesh cannot be reached. Change it here # in all 30 charts AND in the pinned expectation inside # ci/run-networkpolicy-test.sh - the test is deliberately what forces # someone to look, because the exception it grants this port is pinned to # the number IT knows and not to whatever this value says. A value-driven # exception would let a mistyped port through, which is the hole design A # of #143 was rejected for. # # NOT MEASURED: that this port ALONE suffices comes from Istio's # documentation. Measured here is only which listeners ztunnel opens, and # no namespace carries istio.io/dataplane-mode yet. port: 15008 # SOURCES THE KUBELET'S PROBES ARRIVE FROM ONCE ISTIO HAS REDIRECTED THEM. # # NOT THE SAME VALUE AS networkPolicy.probeSources one level up, and the # two are easy to confuse, so: # # networkPolicy.probeSources # YOUR worker node CIDRs. Empty by default, and empty means the # probe rule is OPEN. The chart cannot know these addresses. # networkPolicy.ingress.ambientMesh.redirectedProbeSources # ISTIO's rewrite address. Shipped filled, because unlike the node # IPs it is a constant the chart CAN know. Only rendered where the # rule above is restricted, i.e. where probeSources is non-empty. # # WHERE 169.254.7.127 COMES FROM - vendor magic, not protocol: # # - LINK-LOCAL, 169.254.0.0/16 (RFC 3927): a range reserved for # node-local use that is never routed - exactly the range one picks a # vendor's magic address out of. # - Istio's IPv6 counterpart gives it away: # fd16:9254:7127:1337:ffff:ffff:ffff:ffff carries the SAME DIGITS # (9254:7127 is 169.254.7.127) plus 1337. Numbers built that way are # vendor constants, not protocols. # - KUBERNETES DOES NOT KNOW THIS ADDRESS. Neither the NetworkPolicy API # nor the kubelet has any notion of it; only Istio's own data plane # rewrites the probe source onto it. # # Read for ztunnel 1.30.6. IF ISTIO CHANGES IT, THE FAILURE IS SILENT: # probes would be dropped, and only where probeSources is non-empty - which # is nowhere in this repository today - so nothing here and nothing in # Kubernetes would report it. What to re-check then: the address Istio's # release notes name for probe redirection, this list in all 30 charts, and # the pinned expectation in ci/run-networkpolicy-test.sh. # # A LIST, not a string, and the one case where that does not contradict "a # 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 # open the port at all, set enabled: false. # # UNPROVEN IN OPERATION: probeSources is empty in every chart here, so no # release reaches this branch. CI proves the render, not the effect. redirectedProbeSources: - 169.254.7.127/32 egress: # Additional outbound TCP ports. DNS (UDP and TCP 53) is always allowed and # has no switch - a knob whose only other setting breaks every name lookup # in the pod is a trap, not a feature. # # PORTS, NOT DESTINATIONS, and that is a limit of the object rather than # laziness: a NetworkPolicy matches CIDRs and selectors and never hostnames, # so "only to the database host" cannot be written at all. Each entry # permits its port to ANY destination. What the cap still buys is real: a # compromised pod cannot open arbitrary outbound connections. # # Add the real port for a database that is on neither 5432 nor 3306, or for # an OIDC issuer that is not on 443. extraPorts: []