feat: add gravity to k8s

Author: chkpwd

kubernetes/core/gravity/flux-kustomization.yml

@@ -0,0 +1,22 @@
+---
+# yaml-language-server: $schema=https://kubernetes-schemas.pages.dev/kustomize.toolkit.fluxcd.io/kustomization_v1.json
+apiVersion: kustomize.toolkit.fluxcd.io/v1
+kind: Kustomization
+metadata:
+  name: &app gravity
+  namespace: &ns networking
+spec:
+  targetNamespace: *ns
+  path: ./kubernetes/core/gravity/
+  commonMetadata:
+    labels:
+      app.kubernetes.io/name: *app
+  prune: true
+  sourceRef:
+    kind: GitRepository
+    name: chkpwd-ops
+    namespace: flux-system
+  wait: false
+  interval: 30m
+  retryInterval: 1m
+  timeout: 5m

kubernetes/core/gravity/http-route.yml

@@ -0,0 +1,17 @@
+---
+# yaml-language-server: $schema=https://kubernetes-schemas.pages.dev/gateway.networking.k8s.io/httproute_v1.json
+apiVersion: gateway.networking.k8s.io/v1
+kind: HTTPRoute
+metadata:
+  name: gravity
+spec:
+  hostnames: ["gravity-dns-03.chkpwd.com"]
+  parentRefs:
+    - name: private
+      namespace: kube-system
+      sectionName: https
+  rules:
+    - backendRefs:
+        - name: gravity
+          namespace: networking
+          port: 8008

kubernetes/core/gravity/kustomization.yml

@@ -0,0 +1,8 @@
+---
+# yaml-language-server: $schema=https://json.schemastore.org/kustomization
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+  - sts.yml
+  - svc.yml
+  - http-route.yml

kubernetes/core/gravity/sts.yml

@@ -0,0 +1,64 @@
+---
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  labels:
+    app.kubernetes.io/name: gravity
+  name: gravity
+spec:
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: gravity
+  serviceName: "gravity"
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: gravity
+    spec:
+      hostname: gravity-dns-03
+      containers:
+        - name: gravity
+          image: ghcr.io/beryju/gravity:v0.27.0
+          env:
+            - name: LISTEN_ONLY
+              value: "true"
+            - name: INSTANCE_LISTEN
+              value: 0.0.0.0
+            - name: INSTANCE_IP
+              value: 172.16.16.17
+          livenessProbe:
+            httpGet:
+              path: /healthz/live
+              port: http-metrics
+          readinessProbe:
+            httpGet:
+              path: /healthz/ready
+              port: http-metrics
+          ports:
+            - containerPort: 53
+              name: dns-tcp
+            - containerPort: 53
+              protocol: UDP
+              name: dns-udp
+            - containerPort: 67
+              protocol: UDP
+              name: dhcp
+            - containerPort: 68
+              protocol: UDP
+              name: dhcp-alt
+            - containerPort: 8008
+              name: http
+            - containerPort: 8009
+              name: http-metrics
+          volumeMounts:
+            - name: data
+              mountPath: /data
+  volumeClaimTemplates:
+    - metadata:
+        name: data
+      spec:
+        resources:
+          requests:
+            storage: 10Gi
+        accessModes:
+          - ReadWriteOnce

kubernetes/core/gravity/svc.yml

@@ -0,0 +1,17 @@
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: gravity
+  namespace: gravity
+spec:
+  type: ClusterIP
+  selector:
+    app.kubernetes.io/name: gravity
+  ports:
+    - port: 8008
+      name: http
+      targetPort: 8008
+    - port: 8009
+      name: metrics
+      targetPort: 8009

kubernetes/core/kustomization.yml

@@ -29,3 +29,4 @@ resources:
   - grafana-operator/flux-kustomization.yml
   - keda-operator/flux-kustomization.yml
   - blackbox-exporter/flux-kustomization.yml
+  - gravity/flux-kustomization.yml