Add etcd-operator helm chart

chart/Chart.yaml

@@ -0,0 +1,8 @@
+apiVersion: v2
+name: etcd-operator
+description: A Helm chart to deploy etcd-operator
+
+type: application
+version: 0.0.1
+
+appVersion: "0.10.0-5"

chart/crds/etcd-cluster.yaml

@@ -0,0 +1,44 @@
+---
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  name: etcdclusters.etcd.database.coreos.com
+spec:
+  scope: Namespaced
+  group: etcd.database.coreos.com
+  names:
+    kind: EtcdCluster
+    listKind: EtcdClusterList
+    plural: etcdclusters
+    shortNames:
+      - etcd
+    singular: etcdcluster
+  conversion:
+    strategy: None
+  versions:
+    - additionalPrinterColumns:
+        - jsonPath: .status.size
+          name: size
+          type: number
+        - jsonPath: .spec.version
+          name: version
+          type: string
+        - jsonPath: .status.serviceName
+          name: service
+          type: string
+        - jsonPath: .status.phase
+          name: phase
+          type: string
+        - jsonPath: .status.conditions[-1].type
+          name: status
+          type: string
+        - jsonPath: .metadata.creationTimestamp
+          name: age
+          type: date
+      name: v1beta3
+      schema:
+        openAPIV3Schema:
+          type: object
+          x-kubernetes-preserve-unknown-fields: true
+      served: true
+      storage: true

chart/templates/etcd-clusters.yaml

@@ -0,0 +1,9 @@
+{{- range .Values.clusters }}
+---
+apiVersion: etcd.database.coreos.com/v1beta3
+kind: EtcdCluster
+metadata:
+  name: {{ .name | quote }}
+  namespace: {{ $.Release.Namespace }}
+spec: {{ .spec | toYaml | nindent 2 }}
+{{- end }}

chart/templates/etcd-operator-deployment.yaml

@@ -0,0 +1,37 @@
+{{- if .Values.operator.enabled -}}
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: etcd-operator-{{ .Release.Name }}
+  namespace: {{ .Release.Namespace }}
+  labels:
+    app: etcd-operator-{{ .Release.Name }}
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: etcd-operator-{{ .Release.Name }}
+  template:
+    metadata:
+      labels:
+        app: etcd-operator-{{ .Release.Name }}
+    spec:
+      serviceAccountName: etcd-operator-{{ .Release.Name }}-sa
+      containers:
+        - name: operator
+          # TODO(neoaggelos): https://github.com/neoaggelos/etcd-operator/pull/1
+          # Update to a stable build once PR is merged upstream
+          image: neoaggelos/etcd-operator:0.10.0-5
+          command:
+            - /operator
+          env:
+            - name: MY_POD_NAMESPACE
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.namespace
+            - name: MY_POD_NAME
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.name
+{{ end }}

chart/templates/etcd-operator-rbac.yaml

@@ -0,0 +1,58 @@
+{{- if and .Values.rbac.enabled -}}
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: etcd-operator-{{ .Release.Name }}-cluster-role
+rules:
+  - apiGroups:
+      - etcd.database.coreos.com
+    resources:
+      - etcdclusters
+      - etcdbackups
+      - etcdrestores
+    verbs:
+      - "*"
+  - apiGroups:
+      - ""
+    resources:
+      - pods
+      - services
+      - endpoints
+      - persistentvolumeclaims
+      - events
+    verbs:
+      - "*"
+  - apiGroups:
+      - apps
+    resources:
+      - deployments
+    verbs:
+      - "*"
+  # The following permissions can be removed if not using S3 backup and TLS
+  - apiGroups:
+      - ""
+    resources:
+      - secrets
+    verbs:
+      - get
+  - apiGroups:
+      - ""
+    resources:
+      - nodes
+    verbs:
+      - list
+---
+kind: ClusterRoleBinding
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: etcd-operator-{{ .Release.Name }}-cluster-role-binding
+subjects:
+  - kind: ServiceAccount
+    name: etcd-operator-{{ .Release.Name }}-sa
+    namespace: {{ .Release.Namespace }}
+roleRef:
+  kind: ClusterRole
+  apiGroup: rbac.authorization.k8s.io
+  name: etcd-operator-{{ .Release.Name }}-cluster-role
+{{ end }}

chart/templates/etcd-operator-sa.yaml

@@ -0,0 +1,6 @@
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  namespace: {{ .Release.Namespace }}
+  name: etcd-operator-{{ .Release.Name }}-sa

chart/values.yaml

@@ -0,0 +1,22 @@
+operator:
+  enabled: true
+rbac:
+  enabled: true
+
+clusters:
+  - name: etcd
+    spec:
+      size: 3
+      limitSizeToMaxReadyNodes: true
+      version: "3.5.2"
+      pod:
+        restartPolicy: Always
+        affinity:
+          podAntiAffinity:
+            requiredDuringSchedulingIgnoredDuringExecution:
+              - labelSelector:
+                  matchExpressions:
+                    - key: etcd_cluster
+                      operator: In
+                      values: [etcd]
+                topologyKey: kubernetes.io/hostname