On my ESXi hypervisor I installed two PhotonOS VMs and made the first one a Kubernetes Master and the second one a Kubernetes Node according to this instructions from VMWare and the following two sites.
Both servers
The /etc/kubernetes/config
file on both:
KUBE_LOGTOSTDERR="--logtostderr=true"
KUBE_LOG_LEVEL="--v=0"
KUBE_ALLOW_PRIV="--allow-privileged=false"
KUBE_MASTER="--master=http://k8s-master:8080"
On the master
/etc/kubernetes/apiserver
:
KUBE_API_ADDRESS="--address=0.0.0.0"
KUBE_ETCD_SERVERS="--etcd-servers=http://127.0.0.1:2379"
KUBE_SERVICE_ADDRESSES="--service-cluster-ip-range=10.254.0.0/16"
KUBE_ADMISSION_CONTROL="--admission-control=NamespaceLifecycle,NamespaceExists,LimitRanger,SecurityContextDeny,ServiceAccount,ResourceQuota"
KUBE_API_ARGS=""
node.json
:
{
"apiVersion": "v1",
"kind": "Node",
"metadata": {
"name": "k8s-worker-1",
"labels":{ "name": "k8s-worker"}
},
"spec": {
"externalID": "k8s-worker-1"
}
}
On the node
/etc/kubernetes/kubelet
:
KUBELET_ADDRESS="--address=0.0.0.0"
KUBELET_HOSTNAME="--hostname-override=k8s-worker-1"
KUBELET_API_SERVER="--kubeconfig=/etc/kubernetes/kubeconfig"
KUBELET_ARGS=""
/etc/kubernetes/kubeconfig
apiVersion: v1
clusters:
- cluster:
server: http://k8s-master:8080
Problem
So, the kubectl get pods -A
returns No resources found
and kubectl get rs -A
returns
NAMESPACE NAME DESIRED CURRENT READY AGE
kubernetes-dashboard dashboard-metrics-scraper-79c5968bdc 1 0 0 106m
kubernetes-dashboard kubernetes-dashboard-658485d5c7 1 0 0 106m
kubectl describe deployment -A
returns
Name: dashboard-metrics-scraper
Namespace: kubernetes-dashboard
CreationTimestamp: Sat, 21 Aug 2021 02:44:38 +0000
Labels: k8s-app=dashboard-metrics-scraper
Annotations: deployment.kubernetes.io/revision: 1
Selector: k8s-app=dashboard-metrics-scraper
Replicas: 1 desired | 0 updated | 0 total | 0 available | 1 unavailable
StrategyType: RollingUpdate
MinReadySeconds: 0
RollingUpdateStrategy: 25% max unavailable, 25% max surge
Pod Template:
Labels: k8s-app=dashboard-metrics-scraper
Annotations: seccomp.security.alpha.kubernetes.io/pod: runtime/default
Service Account: kubernetes-dashboard
Containers:
dashboard-metrics-scraper:
Image: kubernetesui/metrics-scraper:v1.0.6
Port: 8000/TCP
Host Port: 0/TCP
Liveness: http-get http://:8000/ delay=30s timeout=30s period=10s #success=1 #failure=3
Environment: <none>
Mounts:
/tmp from tmp-volume (rw)
Volumes:
tmp-volume:
Type: EmptyDir (a temporary directory that shares a pod's lifetime)
Medium:
SizeLimit: <unset>
Conditions:
Type Status Reason
---- ------ ------
Available False MinimumReplicasUnavailable
ReplicaFailure True FailedCreate
Progressing False ProgressDeadlineExceeded
OldReplicaSets: <none>
NewReplicaSet: dashboard-metrics-scraper-79c5968bdc (0/1 replicas created)
Events: <none>
Name: kubernetes-dashboard
Namespace: kubernetes-dashboard
CreationTimestamp: Sat, 21 Aug 2021 02:44:38 +0000
Labels: k8s-app=kubernetes-dashboard
Annotations: deployment.kubernetes.io/revision: 1
Selector: k8s-app=kubernetes-dashboard
Replicas: 1 desired | 0 updated | 0 total | 0 available | 1 unavailable
StrategyType: RollingUpdate
MinReadySeconds: 0
RollingUpdateStrategy: 25% max unavailable, 25% max surge
Pod Template:
Labels: k8s-app=kubernetes-dashboard
Service Account: kubernetes-dashboard
Containers:
kubernetes-dashboard:
Image: kubernetesui/dashboard:v2.3.1
Port: 8443/TCP
Host Port: 0/TCP
Args:
--auto-generate-certificates
--namespace=kubernetes-dashboard
Liveness: http-get https://:8443/ delay=30s timeout=30s period=10s #success=1 #failure=3
Environment: <none>
Mounts:
/certs from kubernetes-dashboard-certs (rw)
/tmp from tmp-volume (rw)
Volumes:
kubernetes-dashboard-certs:
Type: Secret (a volume populated by a Secret)
SecretName: kubernetes-dashboard-certs
Optional: false
tmp-volume:
Type: EmptyDir (a temporary directory that shares a pod's lifetime)
Medium:
SizeLimit: <unset>
Conditions:
Type Status Reason
---- ------ ------
Available False MinimumReplicasUnavailable
ReplicaFailure True FailedCreate
Progressing False ProgressDeadlineExceeded
OldReplicaSets: <none>
NewReplicaSet: kubernetes-dashboard-658485d5c7 (0/1 replicas created)
Events: <none>
So as you see, I can not get the kubernetes dashboard up and running because the pods are not ready. What can I do to solve this? Thanks in advance.