chore: Add Uptime Kuma Helm chart with deployment, service, ingress, PVC, and backup CronJob templates

uptime-kuma/templates/backup-cronjob.yaml

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+{{- if .Values.backup.enabled -}}
+apiVersion: batch/v1
+kind: CronJob
+metadata:
+  name: {{ .Release.Name }}-backup
+spec:
+  schedule: {{ .Values.backup.schedule | quote }}
+  jobTemplate:
+    spec:
+      template:
+        spec:
+          containers:
+          - name: mysql-backup
+            image: {{ .Values.backup.image }}
+            command:
+            - /bin/sh
+            - -c
+            - |
+              mysqldump -h {{ .Values.database.host }} -P {{ .Values.database.port }} -u $DB_USERNAME -p$DB_PASSWORD $DB_NAME | gzip > /backup/$DB_NAME-$(date +%Y%m%d-%H%M%S).sql.gz
+              find /backup -name "$DB_NAME-*.sql.gz" -mtime +{{ .Values.backup.retentionDays }} -delete
+            env:
+            - name: DB_NAME
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Values.database.existingSecret }}
+                  key: {{ .Values.database.secretKeys.dbName }}
+            - name: DB_USERNAME
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Values.database.existingSecret }}
+                  key: {{ .Values.database.secretKeys.dbUsername }}
+            - name: DB_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Values.database.existingSecret }}
+                  key: {{ .Values.database.secretKeys.dbPassword }}
+            volumeMounts:
+            - name: backup-storage
+              mountPath: /backup
+          volumes:
+          - name: backup-storage
+            hostPath:
+              path: {{ .Values.backup.storagePath }}
+              type: DirectoryOrCreate
+          restartPolicy: OnFailure
+          {{- if .Values.backup.node }}
+          affinity:
+            nodeAffinity:
+              requiredDuringSchedulingIgnoredDuringExecution:
+                nodeSelectorTerms:
+                - matchExpressions:
+                  - key: kubernetes.io/hostname
+                    operator: In
+                    values:
+                    - {{ .Values.backup.node }}
+          {{- end }}
+{{- end }}

uptime-kuma/templates/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ .Release.Name }}
+  labels:
+    app.kubernetes.io/name: {{ .Chart.Name }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+    app.kubernetes.io/component: monitoring
+  annotations:
+    version-source: {{ index .Chart.Annotations "version-source" }}
+spec:
+  replicas: 1
+  strategy:
+    type: Recreate
+  selector:
+    matchLabels:
+      app: {{ .Release.Name }}
+  template:
+    metadata:
+      labels:
+        app: {{ .Release.Name }}
+    spec:
+      containers:
+        - name: {{ .Chart.Name }}
+          image: "{{ .Values.image.repository }}:{{ .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          ports:
+            - containerPort: {{ .Values.port }}
+              name: http
+          env:
+            - name: UPTIME_KUMA_DB_TYPE
+              value: {{ .Values.database.type }}
+            - name: UPTIME_KUMA_DB_HOSTNAME
+              value: {{ .Values.database.host }}
+            - name: UPTIME_KUMA_DB_PORT
+              value: {{ .Values.database.port | quote }}
+            - name: UPTIME_KUMA_DB_NAME
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Values.database.existingSecret }}
+                  key: {{ .Values.database.secretKeys.dbName }}
+            - name: UPTIME_KUMA_DB_USERNAME
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Values.database.existingSecret }}
+                  key: {{ .Values.database.secretKeys.dbUsername }}
+            - name: UPTIME_KUMA_DB_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Values.database.existingSecret }}
+                  key: {{ .Values.database.secretKeys.dbPassword }}
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+          volumeMounts:
+            - name: data
+              mountPath: /app/data
+            {{- if .Values.dockerSocket.enabled }}
+            - name: docker-sock
+              mountPath: /var/run/docker.sock
+            {{- end }}
+      volumes:
+        - name: data
+          persistentVolumeClaim:
+            claimName: {{ .Release.Name }}-data
+        {{- if .Values.dockerSocket.enabled }}
+        - name: docker-sock
+          hostPath:
+            path: /var/run/docker.sock
+            type: Socket
+        {{- end }}

uptime-kuma/templates/ingress.yaml

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+{{- range $name, $config := .Values.ingresses }}
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: {{ $.Release.Name }}-{{ $name }}
+  {{- with $config.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  rules:
+    - host: {{ $config.host }}
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: {{ $.Release.Name }}
+                port:
+                  number: {{ $.Values.port }}
+  {{- with $config.tls }}
+  tls:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+{{- end }}

uptime-kuma/templates/pvc.yaml

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+{{- if .Values.persistence.enabled }}
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: {{ .Release.Name }}-data
+spec:
+  accessModes:
+    - ReadWriteOnce
+  {{- if .Values.persistence.storageClass }}
+  storageClassName: {{ .Values.persistence.storageClass }}
+  {{- end }}
+  resources:
+    requests:
+      storage: {{ .Values.persistence.size }}
+{{- end }}

uptime-kuma/templates/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ .Release.Name }}
+  labels:
+    app.kubernetes.io/name: {{ .Chart.Name }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+spec:
+  type: ClusterIP
+  selector:
+    app: {{ .Release.Name }}
+  ports:
+    - name: http
+      port: {{ .Values.port }}
+      targetPort: {{ .Values.port }}
+      protocol: TCP