manage Minecraft workloads as GitOps manifests

2026-10-21 14:14:59 +02:00
parent e13c3f2ae5
commit 41c2cb3d4d
13 changed files with 457 additions and 21 deletions
@@ -0,0 +1,28 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: atm10-dashboard
+  labels:
+    grafana_dashboard: '1'
+data:
+  dashboard.json: |
+    {
+      "uid": "minecraft-atm10",
+      "title": "Minecraft — ATM10",
+      "tags": ["minecraft", "atm10"],
+      "schemaVersion": 39,
+      "version": 1,
+      "refresh": "30s",
+      "time": {"from": "now-3h", "to": "now"},
+      "panels": [
+        {"id": 1, "type": "stat", "title": "Server status", "gridPos": {"x": 0, "y": 0, "w": 4, "h": 4}, "datasource": {"type": "prometheus", "uid": "${DS_PROMETHEUS}"}, "targets": [{"refId": "A", "expr": "max(minecraft_status_healthy{namespace=\"atm10\"})", "instant": true}]},
+        {"id": 2, "type": "gauge", "title": "Players online", "gridPos": {"x": 4, "y": 0, "w": 5, "h": 4}, "datasource": {"type": "prometheus", "uid": "${DS_PROMETHEUS}"}, "targets": [{"refId": "A", "expr": "max(minecraft_status_players_online_count{namespace=\"atm10\"})", "instant": true}], "fieldConfig": {"defaults": {"min": 0, "max": 20, "unit": "short"}}},
+        {"id": 3, "type": "stat", "title": "Node", "gridPos": {"x": 9, "y": 0, "w": 7, "h": 4}, "datasource": {"type": "prometheus", "uid": "${DS_PROMETHEUS}"}, "targets": [{"refId": "A", "expr": "max by (node) (kube_pod_info{namespace=\"atm10\",pod=~\"atm10-.*\"})", "instant": true, "legendFormat": "{{node}}"}]},
+        {"id": 4, "type": "timeseries", "title": "CPU cores", "gridPos": {"x": 0, "y": 4, "w": 12, "h": 8}, "datasource": {"type": "prometheus", "uid": "${DS_PROMETHEUS}"}, "targets": [{"refId": "A", "expr": "sum(rate(container_cpu_usage_seconds_total{namespace=\"atm10\",pod=~\"atm10-.*\",container=\"atm10\"}[5m]))", "legendFormat": "CPU cores"}], "fieldConfig": {"defaults": {"unit": "cores", "min": 0}}},
+        {"id": 5, "type": "timeseries", "title": "Memory", "gridPos": {"x": 12, "y": 4, "w": 12, "h": 8}, "datasource": {"type": "prometheus", "uid": "${DS_PROMETHEUS}"}, "targets": [{"refId": "A", "expr": "sum(container_memory_working_set_bytes{namespace=\"atm10\",pod=~\"atm10-.*\",container=\"atm10\"})", "legendFormat": "Working set"}], "fieldConfig": {"defaults": {"unit": "bytes", "min": 0}}},
+        {"id": 6, "type": "timeseries", "title": "Network", "gridPos": {"x": 0, "y": 12, "w": 24, "h": 8}, "datasource": {"type": "prometheus", "uid": "${DS_PROMETHEUS}"}, "targets": [{"refId": "A", "expr": "sum by (pod) (rate(container_network_receive_bytes_total{namespace=\"atm10\",pod=~\"atm10-.*\"}[5m]))", "legendFormat": "{{pod}} receive"}, {"refId": "B", "expr": "sum by (pod) (rate(container_network_transmit_bytes_total{namespace=\"atm10\",pod=~\"atm10-.*\"}[5m]))", "legendFormat": "{{pod}} transmit"}], "fieldConfig": {"defaults": {"unit": "Bps", "min": 0}}}
+      ],
+      "templating": {"list": [{"name": "DS_PROMETHEUS", "type": "datasource", "query": "prometheus", "label": "Prometheus", "current": {"text": "Prometheus", "value": "${DS_PROMETHEUS}"}, "hide": 0}]},
+      "annotations": {"list": []},
+      "links": []
+    }
@@ -0,0 +1,83 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: atm10
+  labels:
+    app.kubernetes.io/name: minecraft-atm10
+    app.kubernetes.io/instance: atm10
+spec:
+  replicas: 1
+  strategy:
+    type: Recreate
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: minecraft-atm10
+      app.kubernetes.io/instance: atm10
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: minecraft-atm10
+        app.kubernetes.io/instance: atm10
+    spec:
+      automountServiceAccountToken: false
+      terminationGracePeriodSeconds: 600
+      nodeSelector:
+        kubernetes.io/hostname: arschrock
+      tolerations:
+        - key: node-role.kubernetes.io/control-plane
+          operator: Exists
+          effect: NoSchedule
+      securityContext:
+        runAsUser: 1000
+        runAsGroup: 1000
+      containers:
+        - name: atm10
+          image: docker.io/library/eclipse-temurin:21.0.12_8-jre-noble
+          imagePullPolicy: IfNotPresent
+          workingDir: /data
+          command: [java]
+          args:
+            - '@user_jvm_args.txt'
+            - '@libraries/net/neoforged/neoforge/21.1.224/unix_args.txt'
+            - nogui
+          ports:
+            - name: minecraft
+              containerPort: 25566
+              protocol: TCP
+          startupProbe:
+            tcpSocket:
+              port: minecraft
+            periodSeconds: 10
+            failureThreshold: 120
+          readinessProbe:
+            tcpSocket:
+              port: minecraft
+            periodSeconds: 10
+            failureThreshold: 3
+          volumeMounts:
+            - name: server-data
+              mountPath: /data
+        - name: mc-monitor
+          image: docker.io/itzg/mc-monitor:1.18.3
+          imagePullPolicy: IfNotPresent
+          args:
+            - export-for-prometheus
+            - -servers
+            - 127.0.0.1:25566
+            - -port
+            - '8080'
+            - -timeout
+            - 10s
+          ports:
+            - name: metrics
+              containerPort: 8080
+          readinessProbe:
+            httpGet:
+              path: /metrics
+              port: metrics
+            periodSeconds: 10
+      volumes:
+        - name: server-data
+          hostPath:
+            path: /home/feedc0de/ATM10
+            type: Directory
@@ -0,0 +1,7 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+  - deployment.yaml
+  - services.yaml
+  - monitoring.yaml
+  - dashboard.yaml
@@ -0,0 +1,17 @@
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: atm10
+  labels:
+    app.kubernetes.io/name: minecraft-atm10
+    app.kubernetes.io/instance: atm10
+spec:
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: minecraft-atm10
+      app.kubernetes.io/instance: atm10
+      app.kubernetes.io/component: metrics
+  endpoints:
+    - port: metrics
+      interval: 30s
+      scrapeTimeout: 10s
@@ -0,0 +1,62 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: atm10
+  annotations:
+    metallb.io/address-pool: default
+    mikrotik.brunner.ninja/router: newgw
+    mikrotik.brunner.ninja/forwardings: '[{"name":"tcp","servicePort":"minecraft","dstAddressList":"WANs"}]'
+  labels:
+    app.kubernetes.io/name: minecraft-atm10
+    app.kubernetes.io/instance: atm10
+spec:
+  type: LoadBalancer
+  externalTrafficPolicy: Local
+  selector:
+    app.kubernetes.io/name: minecraft-atm10
+    app.kubernetes.io/instance: atm10
+  ports:
+    - name: minecraft
+      port: 25566
+      targetPort: minecraft
+      protocol: TCP
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: atm10-arschrock
+  labels:
+    app.kubernetes.io/name: minecraft-atm10
+    app.kubernetes.io/instance: atm10
+spec:
+  type: ClusterIP
+  externalIPs:
+    - 10.12.4.170
+    - 192.168.0.2
+  selector:
+    app.kubernetes.io/name: minecraft-atm10
+    app.kubernetes.io/instance: atm10
+  ports:
+    - name: minecraft
+      port: 25566
+      targetPort: minecraft
+      protocol: TCP
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: atm10-metrics
+  labels:
+    app.kubernetes.io/name: minecraft-atm10
+    app.kubernetes.io/instance: atm10
+    app.kubernetes.io/component: metrics
+spec:
+  type: ClusterIP
+  selector:
+    app.kubernetes.io/name: minecraft-atm10
+    app.kubernetes.io/instance: atm10
+  ports:
+    - name: metrics
+      port: 8080
+      targetPort: metrics
+      protocol: TCP
@@ -0,0 +1,28 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: paper-dashboard
+  labels:
+    grafana_dashboard: '1'
+data:
+  dashboard.json: |
+    {
+      "uid": "minecraft-paper",
+      "title": "Minecraft — Paper",
+      "tags": ["minecraft", "paper"],
+      "schemaVersion": 39,
+      "version": 1,
+      "refresh": "30s",
+      "time": {"from": "now-3h", "to": "now"},
+      "panels": [
+        {"id": 1, "type": "stat", "title": "Server status", "gridPos": {"x": 0, "y": 0, "w": 4, "h": 4}, "datasource": {"type": "prometheus", "uid": "${DS_PROMETHEUS}"}, "targets": [{"refId": "A", "expr": "max(minecraft_status_healthy{namespace=\"mcserver\"})", "instant": true}]},
+        {"id": 2, "type": "gauge", "title": "Players online", "gridPos": {"x": 4, "y": 0, "w": 5, "h": 4}, "datasource": {"type": "prometheus", "uid": "${DS_PROMETHEUS}"}, "targets": [{"refId": "A", "expr": "max(minecraft_status_players_online_count{namespace=\"mcserver\"})", "instant": true}], "fieldConfig": {"defaults": {"min": 0, "max": 20, "unit": "short"}}},
+        {"id": 3, "type": "stat", "title": "Node", "gridPos": {"x": 9, "y": 0, "w": 7, "h": 4}, "datasource": {"type": "prometheus", "uid": "${DS_PROMETHEUS}"}, "targets": [{"refId": "A", "expr": "max by (node) (kube_pod_info{namespace=\"mcserver\",pod=~\"paper-.*\"})", "instant": true, "legendFormat": "{{node}}"}]},
+        {"id": 4, "type": "timeseries", "title": "CPU cores", "gridPos": {"x": 0, "y": 4, "w": 12, "h": 8}, "datasource": {"type": "prometheus", "uid": "${DS_PROMETHEUS}"}, "targets": [{"refId": "A", "expr": "sum(rate(container_cpu_usage_seconds_total{namespace=\"mcserver\",pod=~\"paper-.*\",container=\"paper\"}[5m]))", "legendFormat": "CPU cores"}], "fieldConfig": {"defaults": {"unit": "cores", "min": 0}}},
+        {"id": 5, "type": "timeseries", "title": "Memory", "gridPos": {"x": 12, "y": 4, "w": 12, "h": 8}, "datasource": {"type": "prometheus", "uid": "${DS_PROMETHEUS}"}, "targets": [{"refId": "A", "expr": "sum(container_memory_working_set_bytes{namespace=\"mcserver\",pod=~\"paper-.*\",container=\"paper\"})", "legendFormat": "Working set"}], "fieldConfig": {"defaults": {"unit": "bytes", "min": 0}}},
+        {"id": 6, "type": "timeseries", "title": "Network", "gridPos": {"x": 0, "y": 12, "w": 24, "h": 8}, "datasource": {"type": "prometheus", "uid": "${DS_PROMETHEUS}"}, "targets": [{"refId": "A", "expr": "sum by (pod) (rate(container_network_receive_bytes_total{namespace=\"mcserver\",pod=~\"paper-.*\"}[5m]))", "legendFormat": "{{pod}} receive"}, {"refId": "B", "expr": "sum by (pod) (rate(container_network_transmit_bytes_total{namespace=\"mcserver\",pod=~\"paper-.*\"}[5m]))", "legendFormat": "{{pod}} transmit"}], "fieldConfig": {"defaults": {"unit": "Bps", "min": 0}}}
+      ],
+      "templating": {"list": [{"name": "DS_PROMETHEUS", "type": "datasource", "query": "prometheus", "label": "Prometheus", "current": {"text": "Prometheus", "value": "${DS_PROMETHEUS}"}, "hide": 0}]},
+      "annotations": {"list": []},
+      "links": []
+    }
@@ -0,0 +1,88 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: paper
+  labels:
+    app.kubernetes.io/name: minecraft-paper
+    app.kubernetes.io/instance: paper
+spec:
+  replicas: 1
+  strategy:
+    type: Recreate
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: minecraft-paper
+      app.kubernetes.io/instance: paper
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: minecraft-paper
+        app.kubernetes.io/instance: paper
+    spec:
+      automountServiceAccountToken: false
+      terminationGracePeriodSeconds: 600
+      nodeSelector:
+        kubernetes.io/hostname: arschrock
+      tolerations:
+        - key: node-role.kubernetes.io/control-plane
+          operator: Exists
+          effect: NoSchedule
+      securityContext:
+        runAsUser: 1000
+        runAsGroup: 1000
+      containers:
+        - name: paper
+          image: docker.io/library/eclipse-temurin:26.0.2_10-jre-noble
+          imagePullPolicy: IfNotPresent
+          workingDir: /data
+          command: [java]
+          args:
+            - -Ddisable.watchdog=true
+            - -Xms2G
+            - -Xmx8G
+            - -jar
+            - paper-26.3-166.jar
+          ports:
+            - name: minecraft
+              containerPort: 25565
+              protocol: TCP
+            - name: dynmap
+              containerPort: 8124
+              protocol: TCP
+          startupProbe:
+            tcpSocket:
+              port: minecraft
+            periodSeconds: 10
+            failureThreshold: 60
+          readinessProbe:
+            tcpSocket:
+              port: minecraft
+            periodSeconds: 10
+            failureThreshold: 3
+          volumeMounts:
+            - name: server-data
+              mountPath: /data
+        - name: mc-monitor
+          image: docker.io/itzg/mc-monitor:1.18.3
+          imagePullPolicy: IfNotPresent
+          args:
+            - export-for-prometheus
+            - -servers
+            - 127.0.0.1:25565
+            - -port
+            - '8080'
+            - -timeout
+            - 10s
+          ports:
+            - name: metrics
+              containerPort: 8080
+          readinessProbe:
+            httpGet:
+              path: /metrics
+              port: metrics
+            periodSeconds: 10
+      volumes:
+        - name: server-data
+          hostPath:
+            path: /home/feedc0de/mcserver
+            type: Directory
@@ -0,0 +1,25 @@
+apiVersion: traefik.io/v1alpha1
+kind: Middleware
+metadata:
+  name: paper-mcmap-strip
+spec:
+  stripPrefix:
+    prefixes:
+      - /mcmap
+---
+apiVersion: traefik.io/v1alpha1
+kind: IngressRoute
+metadata:
+  name: mcmap
+spec:
+  entryPoints:
+    - websecure
+  routes:
+    - kind: Rule
+      match: Host(`brunner.ninja`) && PathPrefix(`/mcmap`)
+      middlewares:
+        - name: paper-mcmap-strip
+      services:
+        - kind: Service
+          name: paper-dynmap
+          port: http
@@ -0,0 +1,8 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+  - deployment.yaml
+  - services.yaml
+  - monitoring.yaml
+  - dynmap.yaml
+  - dashboard.yaml
@@ -0,0 +1,17 @@
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: paper
+  labels:
+    app.kubernetes.io/name: minecraft-paper
+    app.kubernetes.io/instance: paper
+spec:
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: minecraft-paper
+      app.kubernetes.io/instance: paper
+      app.kubernetes.io/component: metrics
+  endpoints:
+    - port: metrics
+      interval: 30s
+      scrapeTimeout: 10s
@@ -0,0 +1,81 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: paper
+  annotations:
+    metallb.io/address-pool: default
+    mikrotik.brunner.ninja/router: newgw
+    mikrotik.brunner.ninja/forwardings: '[{"name":"tcp","servicePort":"minecraft","dstAddressList":"WANs"}]'
+  labels:
+    app.kubernetes.io/name: minecraft-paper
+    app.kubernetes.io/instance: paper
+spec:
+  type: LoadBalancer
+  externalTrafficPolicy: Local
+  selector:
+    app.kubernetes.io/name: minecraft-paper
+    app.kubernetes.io/instance: paper
+  ports:
+    - name: minecraft
+      port: 25565
+      targetPort: minecraft
+      protocol: TCP
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: paper-arschrock
+  labels:
+    app.kubernetes.io/name: minecraft-paper
+    app.kubernetes.io/instance: paper
+spec:
+  type: ClusterIP
+  externalIPs:
+    - 10.12.4.170
+    - 192.168.0.2
+  selector:
+    app.kubernetes.io/name: minecraft-paper
+    app.kubernetes.io/instance: paper
+  ports:
+    - name: minecraft
+      port: 25565
+      targetPort: minecraft
+      protocol: TCP
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: paper-dynmap
+  labels:
+    app.kubernetes.io/name: minecraft-paper
+    app.kubernetes.io/instance: paper
+    app.kubernetes.io/component: dynmap
+spec:
+  type: ClusterIP
+  selector:
+    app.kubernetes.io/name: minecraft-paper
+    app.kubernetes.io/instance: paper
+  ports:
+    - name: http
+      port: 8124
+      targetPort: dynmap
+      protocol: TCP
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: paper-metrics
+  labels:
+    app.kubernetes.io/name: minecraft-paper
+    app.kubernetes.io/instance: paper
+    app.kubernetes.io/component: metrics
+spec:
+  type: ClusterIP
+  selector:
+    app.kubernetes.io/name: minecraft-paper
+    app.kubernetes.io/instance: paper
+  ports:
+    - name: metrics
+      port: 8080
+      targetPort: metrics
+      protocol: TCP
@@ -5,23 +5,17 @@ metadata:
  namespace: argocd
 spec:
  project: minecraft
-  sources:
-    - repoURL: https://brunner.ninja/charts
-      chart: minecraft-atm10
-      targetRevision: 6.6.0-1-g7042a8d
-      helm:
-        releaseName: atm10
-        valueFiles: [$values/apps/minecraft-atm10/values.yaml]
-    - repoURL: https://code.brunner.ninja/feedc0de/homelab-gitops.git
-      targetRevision: main
-      ref: values
+  source:
+    repoURL: https://code.brunner.ninja/feedc0de/homelab-gitops.git
+    targetRevision: main
+    path: apps/minecraft-atm10
  destination:
    server: https://kubernetes.default.svc
    namespace: atm10
  syncPolicy:
    automated:
      enabled: true
-      prune: false
+      prune: true
      selfHeal: true
    syncOptions:
      - CreateNamespace=true
@@ -5,19 +5,17 @@ metadata:
  namespace: argocd
 spec:
  project: minecraft
-  sources:
-    - repoURL: https://brunner.ninja/charts
-      chart: minecraft-paper
-      targetRevision: 26.3.166-1-g2acc76d
-      helm:
-        releaseName: paper
-        valueFiles: [$values/apps/minecraft-paper/values.yaml]
-    - repoURL: https://code.brunner.ninja/feedc0de/homelab-gitops.git
-      targetRevision: main
-      ref: values
+  source:
+    repoURL: https://code.brunner.ninja/feedc0de/homelab-gitops.git
+    targetRevision: main
+    path: apps/minecraft-paper
  destination:
    server: https://kubernetes.default.svc
    namespace: mcserver
  syncPolicy:
+    automated:
+      enabled: true
+      prune: true
+      selfHeal: true
    syncOptions:
      - CreateNamespace=true