Failed to retrieve Ignite pods IP addresses

问题:

I am trying to run apache ignite cluster using Google Kubernetes Engine.

After following the tutorial here are some yaml files.

First I create a service - ignite-service.yaml

apiVersion: v1 kind: Service metadata:   # Name of Ignite Service used by Kubernetes IP finder.    # The name must be equal to TcpDiscoveryKubernetesIpFinder.serviceName.   name: ignite   namespace: default spec:   clusterIP: None # custom value.   ports:     - port: 9042 # custom value.   selector:     # Must be equal to one of the labels set in Ignite pods'     # deployement configuration.     app: ignite 

kubectl create -f ignite-service.yaml

Second, I create a deployment for my ignite nodes ignite-deployment.yaml

An example of a Kubernetes configuration for Ignite pods deployment.

apiVersion: extensions/v1beta1 kind: Deployment metadata:   # Custom Ignite cluster's name.   name: ignite-cluster spec:   # A number of Ignite pods to be started by Kubernetes initially.   replicas: 2   template:     metadata:       labels:         app: ignite     spec:       containers:         # Custom Ignite pod name.       - name: ignite-node         image: apacheignite/ignite:2.4.0         env:         - name: OPTION_LIBS           value: ignite-kubernetes         - name: CONFIG_URI           value: https://raw.githubusercontent.com/apache/ignite/master/modules/kubernetes/config/example-kube.xml         ports:         # Ports to open.         # Might be optional depending on your Kubernetes environment.         - containerPort: 11211 # REST port number.         - containerPort: 47100 # communication SPI port number.         - containerPort: 47500 # discovery SPI port number.         - containerPort: 49112 # JMX port number.         - containerPort: 10800 # SQL port number.        

kubectl create -f ignite-deployment.yaml

After that I check status of my pods which are running in my case. However when I check logs for any of my pod, I get the following error,

java.io.IOException: Server returned HTTP response code: 403 for URL: https://kubernetes.default.svc.cluster.local:443/api/v1/namespaces/default/endpoints/ignite 

Things I have tried:-

1. I followed this link to make my cluster work. But in step 4, when I run the daemon yaml file, I get the following error

error: error validating "daemon.yaml": error validating data: ValidationError(DaemonSet.spec.template.spec): missing required field "containers" in io.k8s.api.core.v1.PodSpec; if you choose to ignore these errors, turn validation off with --validate=false

Can anybody point me to my mistake which I might be doing here?

Thanks.

回答1:

Step 1: kubectl apply -f ignite-service.yaml (with the file in your question)

Step 2: kubectl apply -f ignite-rbac.yaml

ignite-rbac.yaml is like this:

apiVersion: v1 kind: ServiceAccount metadata:   name: ignite   namespace: default --- apiVersion: rbac.authorization.k8s.io/v1 kind: Role metadata:   name: ignite-endpoint-access   namespace: default   labels:     app: ignite rules:   - apiGroups: [""]     resources: ["endpoints"]     resourceNames: ["ignite"]     verbs: ["get"] --- apiVersion: rbac.authorization.k8s.io/v1 kind: RoleBinding metadata:   name: ignite-role-binding   namespace: default   labels:     app: ignite subjects:   - kind: ServiceAccount     name: ignite roleRef:   kind: Role   name: ignite-endpoint-access   apiGroup: rbac.authorization.k8s.io 

Step 3: kubectl apply -f ignite-deployment.yaml (very similar to your file, I've only added one line, serviceAccount: ignite:

apiVersion: extensions/v1beta1 kind: Deployment metadata:   # Custom Ignite cluster's name.   name: ignite-cluster   namespace: default spec:   # A number of Ignite pods to be started by Kubernetes initially.   replicas: 2   template:     metadata:       labels:         app: ignite     spec:       serviceAccount: ignite  ## Added line       containers:         # Custom Ignite pod name.       - name: ignite-node         image: apacheignite/ignite:2.4.0         env:         - name: OPTION_LIBS           value: ignite-kubernetes         - name: CONFIG_URI           value: https://raw.githubusercontent.com/apache/ignite/master/modules/kubernetes/config/example-kube.xml         ports:         # Ports to open.         # Might be optional depending on your Kubernetes environment.         - containerPort: 11211 # REST port number.         - containerPort: 47100 # communication SPI port number.         - containerPort: 47500 # discovery SPI port number.         - containerPort: 49112 # JMX port number.         - containerPort: 10800 # SQL port number. 

This should work fine. I've got this in the logs of the pod (kubectl logs -f ignite-cluster-xx-yy), showing the 2 Pods successfully locating each other:

[13:42:00] Ignite node started OK (id=f89698d6) [13:42:00] Topology snapshot [ver=1, servers=1, clients=0, CPUs=1, offheap=0.72GB, heap=1.0GB] [13:42:00] Data Regions Configured: [13:42:00]   ^-- default [initSize=256.0 MiB, maxSize=740.8 MiB, persistenceEnabled=false] [13:42:01] Topology snapshot [ver=2, servers=2, clients=0, CPUs=2, offheap=1.4GB, heap=2.0GB] [13:42:01] Data Regions Configured: [13:42:01]   ^-- default [initSize=256.0 MiB, maxSize=740.8 MiB, persistenceEnabled=false] 

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