titan-iac/services/jenkins/helmrelease.yaml

# services/jenkins/helmrelease.yaml
apiVersion: helm.toolkit.fluxcd.io/v2
kind: HelmRelease
metadata:
  name: jenkins
  namespace: jenkins
spec:
  interval: 30m
  chart:
    spec:
      chart: jenkins
      version: 5.8.114
      sourceRef:
        kind: HelmRepository
        name: jenkins
        namespace: flux-system
  install:
    timeout: 15m
    remediation:
      retries: 3
  upgrade:
    timeout: 15m
    remediation:
      retries: 3
      remediateLastFailure: true
    cleanupOnFail: true
  rollback:
    timeout: 15m
  values:
    controller:
      jenkinsUrl: https://ci.bstein.dev
      ingress:
        enabled: true
        hostName: ci.bstein.dev
        ingressClassName: traefik
        annotations:
          cert-manager.io/cluster-issuer: letsencrypt
          traefik.ingress.kubernetes.io/router.entrypoints: websecure
        tls:
          - secretName: jenkins-tls
            hosts:
              - ci.bstein.dev
      installPlugins:
        - kubernetes
        - workflow-aggregator
        - git
        - configuration-as-code
        - oic-auth
        - job-dsl
        - configuration-as-code-support
      containerEnv:
        - name: ENABLE_OIDC
          value: "true"
        - name: OIDC_ISSUER
          value: "https://sso.bstein.dev/realms/atlas"
        - name: OIDC_CLIENT_ID
          valueFrom:
            secretKeyRef:
              name: jenkins-oidc
              key: clientId
        - name: OIDC_CLIENT_SECRET
          valueFrom:
            secretKeyRef:
              name: jenkins-oidc
              key: clientSecret
        - name: OIDC_AUTH_URL
          valueFrom:
            secretKeyRef:
              name: jenkins-oidc
              key: authorizationUrl
        - name: OIDC_TOKEN_URL
          valueFrom:
            secretKeyRef:
              name: jenkins-oidc
              key: tokenUrl
        - name: OIDC_USERINFO_URL
          valueFrom:
            secretKeyRef:
              name: jenkins-oidc
              key: userInfoUrl
        - name: OIDC_LOGOUT_URL
          valueFrom:
            secretKeyRef:
              name: jenkins-oidc
              key: logoutUrl
        - name: GITEA_PAT_USERNAME
          valueFrom:
            secretKeyRef:
              name: gitea-pat
              key: username
        - name: GITEA_PAT_TOKEN
          valueFrom:
            secretKeyRef:
              name: gitea-pat
              key: token
      customInitContainers:
        - name: clean-jcasc-stale
          image: alpine:3.20
          imagePullPolicy: IfNotPresent
          command:
            - sh
            - -c
            - |
              set -euo pipefail
              rm -f /var/jenkins_home/casc_configs/* || true
          securityContext:
            runAsNonRoot: true
            runAsUser: 1000
            runAsGroup: 1000
          volumeMounts:
            - name: jenkins-home
              mountPath: /var/jenkins_home
      initScripts:
        oidc.groovy: |
          import hudson.util.Secret
          import jenkins.model.IdStrategy
          import jenkins.model.Jenkins
          import org.jenkinsci.plugins.oic.OicSecurityRealm
          import org.jenkinsci.plugins.oic.OicServerWellKnownConfiguration
          import hudson.security.FullControlOnceLoggedInAuthorizationStrategy
          def env = System.getenv()
          if (!(env['ENABLE_OIDC'] ?: 'false').toBoolean()) {
            println("OIDC disabled (ENABLE_OIDC=false); keeping default security realm")
            return
          }
          def required = ['OIDC_CLIENT_ID','OIDC_CLIENT_SECRET','OIDC_ISSUER']
          if (!required.every { env[it] }) {
            throw new IllegalStateException("OIDC enabled but missing vars: ${required.findAll { !env[it] }}")
          }
          try {
            def wellKnown = "${env['OIDC_ISSUER']}/.well-known/openid-configuration"
            def serverCfg = new OicServerWellKnownConfiguration(wellKnown)
            serverCfg.setScopesOverride('openid profile email')
            def realm = new OicSecurityRealm(
              env['OIDC_CLIENT_ID'],
              Secret.fromString(env['OIDC_CLIENT_SECRET']),
              serverCfg,
              false,
              IdStrategy.CASE_INSENSITIVE,
              IdStrategy.CASE_INSENSITIVE
            )
            realm.createProxyAwareResourceRetriver()
            realm.setLogoutFromOpenidProvider(true)
            realm.setPostLogoutRedirectUrl('https://ci.bstein.dev')
            realm.setUserNameField('preferred_username')
            realm.setFullNameFieldName('name')
            realm.setEmailFieldName('email')
            realm.setGroupsFieldName('groups')
            realm.setRootURLFromRequest(true)
            realm.setSendScopesInTokenRequest(true)
            def j = Jenkins.get()
            j.setSecurityRealm(realm)
            def auth = new FullControlOnceLoggedInAuthorizationStrategy()
            auth.setAllowAnonymousRead(false)
            j.setAuthorizationStrategy(auth)
            j.save()
            println("Configured OIDC realm from init script (well-known)")
          } catch (Exception e) {
            println("Failed to configure OIDC realm: ${e}")
            throw e
          }
      JCasC:
        defaultConfig: false
        configScripts:
          base.yaml: |
            jenkins:
              disableRememberMe: false
              mode: NORMAL
              numExecutors: 0
              labelString: ""
              projectNamingStrategy: "standard"
              markupFormatter:
                plainText
              clouds:
              - kubernetes:
                  containerCapStr: "10"
                  defaultsProviderTemplate: ""
                  connectTimeout: "5"
                  readTimeout: "15"
                  jenkinsUrl: "http://jenkins.jenkins.svc.cluster.local:8080"
                  jenkinsTunnel: "jenkins-agent.jenkins.svc.cluster.local:50000"
                  skipTlsVerify: false
                  usageRestricted: false
                  maxRequestsPerHostStr: "32"
                  retentionTimeout: "5"
                  waitForPodSec: "600"
                  name: "kubernetes"
                  namespace: "jenkins"
                  restrictedPssSecurityContext: false
                  serverUrl: "https://kubernetes.default"
                  credentialsId: ""
                  podLabels:
                  - key: "jenkins/jenkins-jenkins-agent"
                    value: "true"
                  templates:
                    - name: "default"
                      namespace: "jenkins"
                      id: a23c9bbcd21e360a77d51b426f05bd7b8032d8fdedd6ffb97c436883ce6c5ffa
                      containers:
                      - name: "jnlp"
                        alwaysPullImage: false
                        args: "^${computer.jnlpmac} ^${computer.name}"
                        envVars:
                          - envVar:
                              key: "JENKINS_URL"
                              value: "http://jenkins.jenkins.svc.cluster.local:8080/"
                        image: "jenkins/inbound-agent:3355.v388858a_47b_33-3"
                        privileged: "false"
                        resourceLimitCpu: 512m
                        resourceLimitMemory: 512Mi
                        resourceRequestCpu: 512m
                        resourceRequestMemory: 512Mi
                        ttyEnabled: false
                        workingDir: /home/jenkins/agent
                      idleMinutes: 0
                      instanceCap: 2147483647
                      label: "jenkins-jenkins-agent "
                      nodeUsageMode: "NORMAL"
                      podRetention: Never
                      showRawYaml: true
                      serviceAccount: "default"
                      slaveConnectTimeoutStr: "100"
                      yamlMergeStrategy: override
                      inheritYamlMergeStrategy: false
              slaveAgentPort: 50000
              crumbIssuer:
                standard:
                  excludeClientIPFromCrumb: true
            security:
              apiToken:
                creationOfLegacyTokenEnabled: false
                tokenGenerationOnCreationEnabled: false
                usageStatisticsEnabled: true
            unclassified:
          creds.yaml: |
            credentials:
              system:
                domainCredentials:
                - credentials:
                  - usernamePassword:
                      scope: GLOBAL
                      id: gitea-pat
                      username: "${GITEA_PAT_USERNAME}"
                      password: "${GITEA_PAT_TOKEN}"
                      description: "Gitea PAT for pipelines"
          jobs.yaml: |
            jobs:
              - script: |
                  pipelineJob('harbor-arm-build') {
                    triggers {
                      scm('H/5 * * * *')
                    }
                    definition {
                      cpsScm {
                        scm {
                          git {
                            remote {
                              url('https://scm.bstein.dev/bstein/harbor-arm-build.git')
                              credentials('gitea-pat')
                            }
                            branches('*/master')
                          }
                        }
                      }
                    }
                  }
    persistence:
      enabled: true
      storageClass: astreae
      size: 50Gi
    serviceAccount:
      create: true