fix: update apiversion, some small fixes

practice/10.deployment-alternative/2.statefulset/rabbitmq-statefulset/configmap.yaml

@@ -0,0 +1,30 @@
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: rabbitmq-config
+data:
+  enabled_plugins: |
+      [rabbitmq_peer_discovery_k8s].
+  rabbitmq.conf: |
+      ## Cluster formation. See http://www.rabbitmq.com/cluster-formation.html to learn more.
+      cluster_formation.peer_discovery_backend  = rabbit_peer_discovery_k8s
+      cluster_formation.k8s.host = kubernetes.default
+      ## Should RabbitMQ node name be computed from the pod's hostname or IP address?
+      ## IP addresses are not stable, so using [stable] hostnames is recommended when possible.
+      ## Set to "hostname" to use pod hostnames.
+      ## When this value is changed, so should the variable used to set the RABBITMQ_NODENAME
+      ## environment variable.
+      cluster_formation.k8s.address_type = hostname
+      ## How often should node cleanup checks run?
+      cluster_formation.node_cleanup.interval = 30
+      ## Set to false if automatic removal of unknown/absent nodes
+      ## is desired. This can be dangerous, see
+      ##  * http://www.rabbitmq.com/cluster-formation.html#node-health-checks-and-cleanup
+      ##  * https://groups.google.com/forum/#!msg/rabbitmq-users/wuOfzEywHXo/k8z_HWIkBgAJ
+      cluster_formation.node_cleanup.only_log_warning = true
+      cluster_partition_handling = autoheal
+      ## See http://www.rabbitmq.com/ha.html#master-migration-data-locality
+      queue_master_locator=min-masters
+      ## See http://www.rabbitmq.com/access-control.html#loopback-users
+      loopback_users.guest = false

practice/10.deployment-alternative/2.statefulset/rabbitmq-statefulset/role.yaml

@@ -0,0 +1,9 @@
+---
+kind: Role
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: endpoint-reader
+rules:
+  - apiGroups: [""]
+    resources: ["endpoints"]
+    verbs: ["get"]

practice/10.deployment-alternative/2.statefulset/rabbitmq-statefulset/rolebinding.yaml

@@ -0,0 +1,12 @@
+---
+kind: RoleBinding
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: endpoint-reader
+subjects:
+  - kind: ServiceAccount
+    name: rabbitmq
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: endpoint-reader

practice/10.deployment-alternative/2.statefulset/rabbitmq-statefulset/service.yaml

@@ -0,0 +1,16 @@
+---
+kind: Service
+apiVersion: v1
+metadata:
+  name: rabbitmq
+  labels:
+    app: rabbitmq
+spec:
+  clusterIP: None
+  ports:
+    - name: amqp
+      protocol: TCP
+      port: 5672
+      targetPort: 5672
+  selector:
+    app: rabbitmq

practice/10.deployment-alternative/2.statefulset/rabbitmq-statefulset/serviceaccount.yaml

@@ -0,0 +1,5 @@
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: rabbitmq

practice/10.deployment-alternative/2.statefulset/rabbitmq-statefulset/statefulset.yaml

@@ -0,0 +1,92 @@
+---
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: rabbitmq
+spec:
+  serviceName: rabbitmq
+  replicas: 2
+  selector:
+    matchLabels:
+      app: rabbitmq
+  template:
+    metadata:
+      labels:
+        app: rabbitmq
+    spec:
+      serviceAccountName: rabbitmq
+      terminationGracePeriodSeconds: 10
+      containers:
+        - name: rabbitmq-k8s
+          image: rabbitmq:3.7
+          env:
+            - name: MY_POD_IP
+              valueFrom:
+                fieldRef:
+                  fieldPath: status.podIP
+            - name: RABBITMQ_USE_LONGNAME
+              value: "true"
+            - name: RABBITMQ_NODENAME
+              value: "rabbit@$(MY_POD_IP)"
+            - name: K8S_SERVICE_NAME
+              value: "rabbitmq"
+            - name: RABBITMQ_ERLANG_COOKIE
+              value: "mycookie"
+          ports:
+            - name: amqp
+              protocol: TCP
+              containerPort: 5672
+          resources:
+            limits:
+              cpu: 1000m
+              memory: 1024Mi
+            requests:
+              cpu: 10m
+              memory: 256Mi
+          livenessProbe:
+            exec:
+              command: ["rabbitmqctl", "status"]
+            initialDelaySeconds: 60
+            periodSeconds: 60
+            timeoutSeconds: 15
+          readinessProbe:
+            exec:
+              command: ["rabbitmqctl", "status"]
+            initialDelaySeconds: 20
+            periodSeconds: 60
+            timeoutSeconds: 10
+          imagePullPolicy: Always
+          volumeMounts:
+            - name: config-volume
+              mountPath: /etc/rabbitmq
+            - name: data
+              mountPath: /var/lib/rabbitmq
+      volumes:
+        - name: config-volume
+          configMap:
+            name: rabbitmq-config
+            items:
+              - key: rabbitmq.conf
+                path: rabbitmq.conf
+              - key: enabled_plugins
+                path: enabled_plugins
+      affinity:
+        podAntiAffinity:
+          preferredDuringSchedulingIgnoredDuringExecution:
+            - weight: 100
+              podAffinityTerm:
+                labelSelector:
+                  matchExpressions:
+                    - key: app
+                      operator: In
+                      values:
+                        - rabbitmq
+                topologyKey: kubernetes.io/hostname
+  volumeClaimTemplates:
+    - metadata:
+        name: data
+      spec:
+        accessModes: ["ReadWriteOnce"]
+        resources:
+          requests:
+            storage: 20Mi