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kubernetesinfluxdbgrafanaheapster

heapster-controller.yaml error -choose one of: [heapster eventer heapster-nanny eventer-nanny]

Trying to deploy heapster-controller to get Heapster + Graphana + InfluxDB working for Kubernetes. Getting error messages while trying ot deploy using heapster-controller.yaml file:

heapster-controller.yaml

apiVersion: extensions/v1beta1 kind: Deployment metadata: name: heapster-v1.1.0-beta1 namespace: kube-system labels: k8s-app: heapster kubernetes.io/cluster-service: "true" spec: replicas: 1 selector: matchLabels: k8s-app: heapster template: metadata: labels: k8s-app: heapster kubernetes.io/cluster-service: "true" spec: containers: - image: gcr.io/google_containers/heapster:v1.1.0-beta1 name: heapster resources: # keep request = limit to keep this container in guaranteed class limits: cpu: 100m memory: 200m requests: cpu: 100m memory: 200m command: - /heapster - --source=kubernetes.summary_api:'' - --sink=influxdb:http://monitoring-influxdb:8086 - --metric_resolution=60s - image: gcr.io/google_containers/heapster:v1.1.0-beta1 name: eventer resources: # keep request = limit to keep this container in guaranteed class limits: cpu: 100m memory: 200m requests: cpu: 100m memory: 200m command: - /eventer - --source=kubernetes:'' - --sink=influxdb:http://monitoring-influxdb:8086 - image: gcr.io/google_containers/addon-resizer:1.0 name: heapster-nanny resources: limits: cpu: 50m memory: 100Mi requests: cpu: 50m memory: 100Mi env: - name: MY_POD_NAME valueFrom: fieldRef: fieldPath: metadata.name - name: MY_POD_NAMESPACE valueFrom: fieldRef: fieldPath: metadata.namespace command: - /pod_nanny - --cpu=100m - --extra-cpu=0m - --memory=200 - --extra-memory=200Mi - --threshold=5 - --deployment=heapster-v1.1.0-beta1 - --container=heapster - --poll-period=300000 - image: gcr.io/google_containers/addon-resizer:1.0 name: eventer-nanny resources: limits: cpu: 50m memory: 100Mi requests: cpu: 50m memory: 100Mi env: - name: MY_POD_NAME valueFrom: fieldRef: fieldPath: metadata.name - name: MY_POD_NAMESPACE valueFrom: fieldRef: fieldPath: metadata.namespace command: - /pod_nanny - --cpu=100m - --extra-cpu=0m - --memory=200 - --extra-memory=200Ki - --threshold=5 - --deployment=heapster-v1.1.0-beta1 - --container=eventer - --poll-period=300000

Deployment goes through, but then I get error:

[root@node236 influxdb]# kubectl get pods -o wide --namespace=kube-system NAME READY STATUS RESTARTS AGE NODE heapster-v1.1.0-beta1-3082378092-t6inb 2/4 RunContainerError 0 1m node262.local.net [root@node236 influxdb]#

Display log for the failed container:

[root@node236 influxdb]# kubectl logs --namespace=kube-system heapster-v1.1.0-beta1-3082378092-t6inb Error from server: a container name must be specified for pod heapster-v1.1.0-beta1-3082378092-t6inb, choose one of: [heapster eventer heapster-nanny eventer-nanny] [root@node236 influxdb]#

Where am I possibly going wrong ?

Any feedback appreaciated!!

Alex

Solution

  • The correct syntax is kubectl logs <pod> <container>.

    In your example, kubectl logs heapster-v1.1.0-beta1-3082378092-t6inb heapster --namespace=kube-system will show the logs of the "heapster" container within the named pod.