kubernetes-dashboard
目录：
kubernetes-dashboard
我使用的镜像是
mritd/kubernetes-dashboard-amd64
rc配置
[root@why-01 ~]# vi /etc/k8s_yaml/kubernetes-dashboard-controller.yaml
apiVersion: v1
kind: ReplicationController
metadata:
labels:
app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kube-system
spec:
replicas: 1
selector:
app: kubernetes-dashboard
template:
metadata:
labels:
app: kubernetes-dashboard
spec:
containers:
- name: kubernetes-dashboard
image: docker.io/mritd/kubernetes-dashboard-amd64
imagePullPolicy: Always
ports:
- containerPort: 9090
protocol: TCP
args:
# Uncomment the following line to manually specify Kubernetes API server Host
# If not specified, Dashboard will attempt to auto discover the API server and connect
# to it. Uncomment only if the default does not work.
- --apiserver-host=140.143.187.188:8080
livenessProbe:
httpGet:
path: /
port: 9090
initialDelaySeconds: 30
timeoutSeconds: 30
service配置
[root@why-01 ~]# vi /etc/k8s_yaml/kubernetes-dashboard-service.yaml
kind: Service
apiVersion: v1
metadata:
labels:
app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kube-system
spec:
type: NodePort
ports:
- port: 9090
nodePort: 30002
selector:
app: kubernetes-dashboard
创建rc和service
[root@why-01 ~]# kubectl create -f /etc/k8s_yaml/kubernetes-dashboard-service.yaml
service "kubernetes-dashboard" created
[root@why-01 ~]# kubectl create -f /etc/k8s_yaml/kubernetes-dashboard-controller.yaml
replicationcontroller "kubernetes-dashboard" created
查看一下描述
[root@why-01 ~]# kubectl describe pod kubernetes-dashboard --namespace='kube-system'
Name: kubernetes-dashboard-c0800
Namespace: kube-system
Node: why-03/10.181.5.146
Start Time: Wed, 25 Oct 2017 14:53:54 +0800
Labels: app=kubernetes-dashboard
Status: Running
IP: 10.1.45.3
Controllers: ReplicationController/kubernetes-dashboard
Containers:
kubernetes-dashboard:
Container ID: docker://2ff3c74c566d657c3142f9134f72db2375b38ff237d9d3414cb3f0f8f6df326e
Image: docker.io/mritd/kubernetes-dashboard-amd64
Image ID: docker-pullable://docker.io/mritd/kubernetes-dashboard-amd64@sha256:377d905c758d08674fd434e567fbfb4411f64a52090d0de7f64fd70b72b2fbeb
Port: 9090/TCP
Args:
--apiserver-host=140.143.187.188:8080
State: Running
Started: Wed, 25 Oct 2017 14:54:00 +0800
Ready: True
Restart Count: 0
Liveness: http-get http://:9090/ delay=30s timeout=30s period=10s #success=1 #failure=3
Volume Mounts: <none>
Environment Variables: <none>
Conditions:
Type Status
Initialized True
Ready True
PodScheduled True
No volumes.
QoS Class: BestEffort
Tolerations: <none>
Events:
FirstSeen LastSeen Count From SubObjectPath Type Reason Message
--------- -------- ----- ---- ------------- -------- ------ -------
29m 29m 1 {default-scheduler } Normal Scheduled Successfully assigned kubernetes-dashboard-c0800 to why-03
29m 29m 1 {kubelet why-03} spec.containers{kubernetes-dashboard} Normal Pulling pulling image "docker.io/mritd/kubernetes-dashboard-amd64"
29m 29m 2 {kubelet why-03} Warning MissingClusterDNS kubelet does not have ClusterDNS IP configured and cannot create Pod using "ClusterFirst" policy. Falling back to DNSDefault policy.
29m 29m 1 {kubelet why-03} spec.containers{kubernetes-dashboard} Normal Pulled Successfully pulled image "docker.io/mritd/kubernetes-dashboard-amd64"
29m 29m 1 {kubelet why-03} spec.containers{kubernetes-dashboard} Normal Created Created container with docker id 2ff3c74c566d; Security:[seccomp=unconfined]
29m 29m 1 {kubelet why-03} spec.containers{kubernetes-dashboard} Normal Started Started container with docker id 2ff3c74c566d
--namespace='kube-system'指定namespace，使用--all-namespaces是不行的
[root@why-01 ~]# kubectl describe pod kubernetes-dashboard --all-namespaces
error: a resource cannot be retrieved by name across all namespaces
不过如果直接获取的时候可以
[root@why-01 ~]# kubectl get pod --all-namespaces
NAMESPACE NAME READY STATUS RESTARTS AGE
default frontend-0rzd1 1/1 Running 0 5d
default frontend-l8bpq 1/1 Running 0 5d
default frontend-sk1wm 1/1 Running 0 5d
default redis-master-8g9zf 1/1 Running 0 5d
default redis-slave-4k60b 1/1 Running 0 5d
default redis-slave-x8tvb 1/1 Running 0 5d
kube-system kubernetes-dashboard-c0800 1/1 Running 0 1h
[root@why-01 ~]# kubectl get service --all-namespaces
NAMESPACE NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE
default frontend 10.254.44.223 <nodes> 80:30001/TCP 6d
default kubernetes 10.254.0.1 <none> 443/TCP 7d
default redis-master 10.254.69.157 <none> 6379/TCP 6d
default redis-slave 10.254.195.218 <none> 6379/TCP 6d
kube-system kubernetes-dashboard 10.254.53.115 <nodes> 9090:30002/TCP 1h
[root@why-01 ~]# kubectl get rc --all-namespaces
NAMESPACE NAME DESIRED CURRENT READY AGE
default frontend 3 3 3 6d
default redis-master 1 1 1 6d
default redis-slave 2 2 2 6d
kube-system kubernetes-dashboard 1 1 1 1h
如果检测没通过
2m 2m 1 {kubelet why-03} spec.containers{kubernetes-dashboard} Normal Killing Killing container with docker id 0c4e5188b67d: pod "kubernetes-dashboard-fhzcf_kube-system(43187744-b8ba-11e7-b8d0-5254006db97b)" container "kubernetes-dashboard" is unhealthy, it will be killed and re-created.
2m 2m 1 {kubelet why-03} spec.containers{kubernetes-dashboard} Normal Created Created container with docker id 65ea1c7df1af; Security:[seccomp=unconfined]
2m 2m 1 {kubelet why-03} spec.containers{kubernetes-dashboard} Normal Started Started container with docker id 65ea1c7df1af
1m 1m 1 {kubelet why-03} spec.containers{kubernetes-dashboard} Normal Killing Killing container with docker id 65ea1c7df1af: pod "kubernetes-dashboard-fhzcf_kube-system(43187744-b8ba-11e7-b8d0-5254006db97b)" container "kubernetes-dashboard" is unhealthy, it will be killed and re-created.
5m 1m 8 {kubelet why-03} spec.containers{kubernetes-dashboard} Warning Unhealthy Liveness probe failed: Get http://10.1.45.3:90/: dial tcp 10.1.45.3:90: getsockopt: connection refused
1m 31s 8 {kubelet why-03} Warning FailedSync Error syncing pod, skipping: failed to "StartContainer" for "kubernetes-dashboard" with CrashLoopBackOff: "Back-off 1m20s restarting failed container=kubernetes-dashboard pod=kubernetes-dashboard-fhzcf_kube-system(43187744-b8ba-11e7-b8d0-5254006db97b)"
1m 31s 8 {kubelet why-03} spec.containers{kubernetes-dashboard} Warning BackOff Back-off restarting failed docker container
6m 18s 7 {kubelet why-03} spec.containers{kubernetes-dashboard} Normal Pulling pulling image "docker.io/mritd/kubernetes-dashboard-amd64"
6m 13s 8 {kubelet why-03} Warning MissingClusterDNS kubelet does not have ClusterDNS IP configured and cannot create Pod using "ClusterFirst" policy. Falling back to DNSDefault policy.
6m 13s 7 {kubelet why-03} spec.containers{kubernetes-dashboard} Normal Pulled Successfully pulled image "docker.io/mritd/kubernetes-dashboard-amd64"
12s 12s 1 {kubelet why-03} spec.containers{kubernetes-dashboard} Normal Created Created container with docker id 24eb133e022c; Security:[seccomp=unconfined]
12s 12s 1 {kubelet why-03} spec.containers{kubernetes-dashboard} Normal Started Started container with docker id 24eb133e022c
可以看到会重复的进行重启。
访问30002端口
dashboard支持的修改service和pod配置，查看pod日志
根据yaml或直接配置创建k8s服务。
