vnfs/DAaaS/training-core/charts/kubernetes-HDFS/charts/hdfs-simple-namenode-k8s/templates/namenode-statefulset.yaml

   1 # A headless service to create DNS records.
   2 apiVersion: v1
   3 kind: Service
   4 metadata:
   5   name: {{ template "hdfs-k8s.namenode.fullname" . }}
   6   labels:
   7     app: {{ template "hdfs-k8s.namenode.name" . }}
   8     chart: {{ template "hdfs-k8s.subchart" . }}
   9     release: {{ .Release.Name }}
  10 spec:
  11   ports:
  12   - port: 8020
  13     name: fs
  14   clusterIP: None
  15   selector:
  16     app: {{ template "hdfs-k8s.namenode.name" . }}
  17     release: {{ .Release.Name }}
  18 ---
  19 apiVersion: apps/v1beta1
  20 kind: StatefulSet
  21 metadata:
  22   name: {{ template "hdfs-k8s.namenode.fullname" . }}
  23   labels:
  24     app: {{ template "hdfs-k8s.namenode.name" . }}
  25     chart: {{ template "hdfs-k8s.subchart" . }}
  26     release: {{ .Release.Name }}
  27 spec:
  28   serviceName: {{ template "hdfs-k8s.namenode.fullname" . }}
  29   # Create a size-1 set.
  30   replicas: 1
  31   template:
  32     metadata:
  33       labels:
  34         app: {{ template "hdfs-k8s.namenode.name" . }}
  35         release: {{ .Release.Name }}
  36       {{- if .Values.podAnnotations }}
  37       annotations:
  38 {{ toYaml .Values.podAnnotations | indent 8 }}
  39       {{- end }}
  40     spec:
  41       {{- if .Values.affinity }}
  42       affinity:
  43 {{ toYaml .Values.affinity | indent 8 }}
  44       {{- end }}
  45       {{- if .Values.nodeSelector }}
  46       nodeSelector:
  47 {{ toYaml .Values.nodeSelector | indent 8 }}
  48       {{- end }}
  49       {{- if .Values.tolerations }}
  50       tolerations:
  51 {{ toYaml .Values.tolerations | indent 8 }}
  52       {{- end }}
  53       # Use hostNetwork so datanodes connect to namenode without going through an overlay network
  54       # like weave. Otherwise, namenode fails to see physical IP address of datanodes.
  55       hostNetwork: true
  56       hostPID: true
  57       dnsPolicy: ClusterFirstWithHostNet
  58       containers:
  59         - name: hdfs-namenode
  60           image: uhopper/hadoop-namenode:2.7.2
  61           env:
  62             - name: HADOOP_CUSTOM_CONF_DIR
  63               value: /etc/hadoop-custom-conf
  64             - name: CLUSTER_NAME
  65               value: hdfs-k8s
  66           ports:
  67           - containerPort: 8020
  68             name: fs
  69           volumeMounts:
  70             - name: hdfs-name
  71               mountPath: /hadoop/dfs/name
  72             - name: hdfs-config
  73               mountPath: /etc/hadoop-custom-conf
  74               readOnly: true
  75       restartPolicy: Always
  76       volumes:
  77         - name: hdfs-name
  78           hostPath:
  79             path: {{ .Values.nameNodeHostPath }}
  80         - name: hdfs-config
  81           configMap:
  82             name: {{ template "hdfs-k8s.config.fullname" . }}