I'm debugging log output from kubectl that states:
Error from server (BadRequest): a container name must be specified for pod postgres-operator-49202276-bjtf4, choose one of: [apiserver postgres-operator]
OK, so that's an explanatory error message, but looking at my JSON template it ought to just create both containers specified, correct? What am I missing? (please forgive my ignorance.)
I'm using just a standard kubectl create -f command to create the JSON file within a shell script. The JSON deployment file is as follows:
{
"apiVersion": "extensions/v1beta1",
"kind": "Deployment",
"metadata": {
"name": "postgres-operator"
},
"spec": {
"replicas": 1,
"template": {
"metadata": {
"labels": {
"name": "postgres-operator"
}
},
"spec": {
"containers": [{
"name": "apiserver",
"image": "$CCP_IMAGE_PREFIX/apiserver:$CO_IMAGE_TAG",
"imagePullPolicy": "IfNotPresent",
"env": [{
"name": "DEBUG",
"value": "true"
}],
"volumeMounts": [{
"mountPath": "/config",
"name": "apiserver-conf",
"readOnly": true
}, {
"mountPath": "/operator-conf",
"name": "operator-conf",
"readOnly": true
}]
}, {
"name": "postgres-operator",
"image": "$CCP_IMAGE_PREFIX/postgres-operator:$CO_IMAGE_TAG",
"imagePullPolicy": "IfNotPresent",
"env": [{
"name": "DEBUG",
"value": "true"
}, {
"name": "NAMESPACE",
"valueFrom": {
"fieldRef": {
"fieldPath": "metadata.namespace"
}
}
}, {
"name": "MY_POD_NAME",
"valueFrom": {
"fieldRef": {
"fieldPath": "metadata.name"
}
}
}],
"volumeMounts": [{
"mountPath": "/operator-conf",
"name": "operator-conf",
"readOnly": true
}]
}],
"volumes": [{
"name": "operator-conf",
"configMap": {
"name": "operator-conf"
}
}, {
"name": "apiserver-conf",
"configMap": {
"name": "apiserver-conf"
}
}]
}
}
}
}
If a pod has more than 1 containers then you need to provide the name of the specific container.
in your case, There is a pod (postgres-operator-49202276-bjtf4) which has 2 containers (apiserver and postgres-operator ). following commands will provide logs for the specific containers
kubectl logs deployment/postgres-operator -c apiserver
kubectl logs deployment/postgres-operator -c postgres-operator