add gatus

kubernetes/apps/observability/gatus/app/externalsecret.yaml

@@ -0,0 +1,23 @@
+---
+# yaml-language-server: $schema=https://ks.hsn.dev/external-secrets.io/externalsecret_v1beta1.json
+apiVersion: external-secrets.io/v1beta1
+kind: ExternalSecret
+metadata:
+  name: gatus
+spec:
+  secretStoreRef:
+    kind: ClusterSecretStore
+    name: onepassword-connect
+  target:
+    name: gatus-secret
+    template:
+      engineVersion: v2
+      data:
+        CUSTOM_PUSHOVER_TOKEN: "{{ .gatus_token }}"
+        CUSTOM_PUSHOVER_USER_KEY: "{{ .userkey_jahanson }}"
+        DATABASE_URI: "postgresql://{{ .pg_username }}:{{ .pg_password }}@postgres-primary-real.database.svc:{{ .pg_port }}/{{ .pg_database }}"
+  dataFrom:
+    - extract:
+        key: pushover
+    - extract:
+        key: gatus

kubernetes/apps/observability/gatus/app/helmrelease.yaml

@@ -0,0 +1,131 @@
+---
+# yaml-language-server: $schema=https://raw.githubusercontent.com/bjw-s/helm-charts/main/charts/other/app-template/schemas/helmrelease-helm-v2beta2.schema.json
+apiVersion: helm.toolkit.fluxcd.io/v2
+kind: HelmRelease
+metadata:
+  name: gatus
+spec:
+  interval: 30m
+  chart:
+    spec:
+      chart: app-template
+      version: 3.4.0
+      sourceRef:
+        kind: HelmRepository
+        name: bjw-s
+        namespace: flux-system
+  install:
+    remediation:
+      retries: 3
+  upgrade:
+    cleanupOnFail: true
+    remediation:
+      strategy: rollback
+      retries: 3
+  values:
+    controllers:
+      gatus:
+        annotations:
+          reloader.stakater.com/auto: "true"
+        initContainers:
+          init-config:
+            image:
+              repository: ghcr.io/kiwigrid/k8s-sidecar
+              tag: 1.27.6@sha256:db85bd5532530d288736b35e63baceacbf570bf863d85a0404b33c1e1631f63b
+            env:
+              FOLDER: /config
+              LABEL: gatus.io/enabled
+              NAMESPACE: ALL
+              RESOURCE: both
+              UNIQUE_FILENAMES: true
+              METHOD: WATCH
+            restartPolicy: Always
+            resources: &resources
+              requests:
+                cpu: 10m
+              limits:
+                memory: 256Mi
+        containers:
+          app:
+            image:
+              repository: ghcr.io/twin/gatus
+              tag: v5.12.1@sha256:3cc4e90534c05599f07fbdf15580401aa7771fac15f51d1dc8f7de265d70d12f
+            env:
+              TZ: America/Chicago
+              GATUS_CONFIG_PATH: /config
+              GATUS_DELAY_START_SECONDS: 5
+              CUSTOM_WEB_PORT: &port 80
+            envFrom:
+              - secretRef:
+                  name: gatus-secret
+            probes:
+              liveness: &probes
+                enabled: true
+                custom: true
+                spec:
+                  httpGet:
+                    path: /health
+                    port: *port
+                  initialDelaySeconds: 0
+                  periodSeconds: 10
+                  timeoutSeconds: 1
+                  failureThreshold: 3
+              readiness: *probes
+            securityContext:
+              allowPrivilegeEscalation: false
+              readOnlyRootFilesystem: true
+              capabilities: { drop: ["ALL"] }
+            resources: *resources
+        pod:
+          dnsConfig:
+            options:
+              - { name: ndots, value: "1" }
+          securityContext:
+            runAsUser: 568
+            runAsGroup: 568
+            runAsNonRoot: true
+            fsGroup: 568
+            fsGroupChangePolicy: OnRootMismatch
+    service:
+      app:
+        controller: gatus
+        ports:
+          http:
+            port: *port
+    serviceMonitor:
+      app:
+        serviceName: gatus
+        endpoints:
+          - port: http
+            scheme: http
+            path: /metrics
+            interval: 1m
+            scrapeTimeout: 10s
+    ingress:
+      app:
+        className: external-nginx
+        annotations:
+          external-dns.alpha.kubernetes.io/cloudflare-proxied: "true"
+          external-dns.alpha.kubernetes.io/target: external.hsn.dev
+        hosts:
+          - host: &host status.hsn.dev
+            paths:
+              - path: /
+                service:
+                  identifier: app
+                  port: http
+        tls:
+          - hosts: [*host]
+    serviceAccount:
+      create: true
+      name: gatus
+    persistence:
+      config:
+        type: emptyDir
+      config-file:
+        type: configMap
+        name: gatus-configmap
+        globalMounts:
+          - path: /config/config.yaml
+            subPath: config.yaml
+            readOnly: true

kubernetes/apps/observability/gatus/app/kustomization.yaml

@@ -0,0 +1,14 @@
+---
+# yaml-language-server: $schema=https://json.schemastore.org/kustomization
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+  - ./externalsecret.yaml
+  - ./helmrelease.yaml
+  - ./rbac.yaml
+configMapGenerator:
+  - name: gatus-configmap
+    files:
+      - config.yaml=./resources/config.yml
+generatorOptions:
+  disableNameSuffixHash: true

kubernetes/apps/observability/gatus/app/rbac.yaml

@@ -0,0 +1,22 @@
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: gatus
+rules:
+  - apiGroups: [""]
+    resources: ["configmaps", "secrets"]
+    verbs: ["get", "watch", "list"]
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: gatus
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: gatus
+subjects:
+  - kind: ServiceAccount
+    name: gatus
+    namespace: observability

kubernetes/apps/observability/gatus/app/resources/config.yml

@@ -0,0 +1,133 @@
+---
+# Note: Gatus vars should be escaped with $${VAR_NAME} to avoid interpolation by Flux
+web:
+  port: $${CUSTOM_WEB_PORT}
+storage:
+  type: postgres
+  path: $${DATABASE_URI}
+  caching: true
+metrics: true
+debug: false
+ui:
+  title: Status | Gatus
+  header: Status
+alerting:
+  pushover:
+    application-token: $${CUSTOM_PUSHOVER_TOKEN}
+    user-key: $${CUSTOM_PUSHOVER_USER_KEY}
+    default-alert:
+      description: health-check failed
+      send-on-resolved: true
+      failure-threshold: 5
+      success-threshold: 2
+connectivity:
+  checker:
+    target: 1.1.1.1:53
+    interval: 1m
+endpoints:
+  - name: status
+    group: external
+    url: https://status.hsn.dev
+    interval: 1m
+    client:
+      dns-resolver: tcp://1.1.1.1:53
+    conditions:
+      - "[STATUS] == 200"
+    alerts:
+      - type: pushover
+  # - name: Umami
+  #   group: external
+  #   url: https://umi.hsn.dev/script.js
+  #   interval: 1m
+  #   client:
+  #     dns-resolver: tcp://1.1.1.1:53
+  #   conditions:
+  #     - "[STATUS] == 200"
+  #   alerts:
+  #     - type: pushover
+  - name: Nextcloud External
+    group: external
+    url: https://nc.hsn.dev
+    interval: 1m
+    ui:
+      hide-url: true
+      hide-hostname: true
+    client:
+      dns-resolver: tcp://1.1.1.1:53
+    conditions:
+      - "[STATUS] == 200"
+    alerts:
+      - type: pushover
+  - name: flux-webhook
+    group: external
+    url: https://flux-receiver.hsn.dev
+    interval: 1m
+    client:
+      dns-resolver: tcp://1.1.1.1:53
+    conditions:
+      - "[STATUS] == 404"
+    alerts:
+      - type: pushover
+  - name: Elessar
+    group: internal
+    url: https://elessar.jahanson.tech
+    interval: 1m
+    client:
+      dns-resolver: tcp://10.1.1.1:53
+    conditions:
+      - "[STATUS] == 200"
+    alerts:
+      - type: pushover
+  - name: Sting
+    group: internal
+    url: http://sting.jahanson.tech
+    interval: 1m
+    client:
+      dns-resolver: tcp://10.1.1.1:53
+    conditions:
+      - "[STATUS] == 200"
+    alerts:
+      - type: pushover
+  # - name: Gandalf
+  #   group: internal
+  #   url: https://gandalf.jahanson.tech:8443
+  #   interval: 1m
+  #   client:
+  #     dns-resolver: tcp://10.1.1.1:53
+  #   conditions:
+  #     - "[STATUS] == 200"
+  #   alerts:
+  #     - type: pushover
+  - name: Gollum
+    group: internal
+    url: http://gollum.jahanson.tech
+    interval: 1m
+    client:
+      dns-resolver: tcp://10.1.1.1:53
+    conditions:
+      - "[STATUS] == 200"
+    alerts:
+      - type: pushover
+  - name: Nextcloud Internal
+    group: internal
+    url: https://nc.hsn.dev
+    interval: 1m
+    ui:
+      hide-url: true
+      hide-hostname: true
+    client:
+      dns-resolver: tcp://10.1.1.1:53
+    conditions:
+      - "[STATUS] == 200"
+    alerts:
+      - type: pushover
+  - name: Home Assistant
+    group: internal
+    url: https://hass.jahanson.tech
+    interval: 1m
+    client:
+      dns-resolver: tcp://10.1.1.1:53
+    conditions:
+      - "[STATUS] == 200"
+    alerts:
+      - type: pushover

kubernetes/apps/observability/gatus/ks.yaml

@@ -0,0 +1,29 @@
+---
+# yaml-language-server: $schema=https://ks.hsn.dev/kustomize.toolkit.fluxcd.io/kustomization_v1.json
+apiVersion: kustomize.toolkit.fluxcd.io/v1
+kind: Kustomization
+metadata:
+  name: &app gatus
+  namespace: flux-system
+spec:
+  targetNamespace: observability
+  commonMetadata:
+    labels:
+      app.kubernetes.io/name: *app
+  dependsOn:
+    - name: crunchy-postgres-operator
+    - name: external-secrets-stores
+  path: ./kubernetes/apps/observability/gatus/app
+  prune: true
+  sourceRef:
+    kind: GitRepository
+    name: theshire
+  wait: false
+  interval: 30m
+  retryInterval: 1m
+  timeout: 5m
+  postBuild:
+    substitute:
+      APP: *app
+      DB_NAME: gatus
+      DB_USER: gatus

kubernetes/apps/observability/kustomization.yaml

@@ -8,3 +8,4 @@ resources:
   # Flux-Kustomizations
   - ./kube-prometheus-stack/ks.yaml
   - ./prometheus-operator-crds/ks.yaml
+  - ./gatus/ks.yaml