Shulou(Shulou.com)06/01 Report--

k8s用户界面k8s-manager的本质及如何进行部署，相信很多没有经验的人对此束手无策，为此本文总结了问题出现的原因和解决方法，通过这篇文章希望你能解决这个问题。

k8s用户界面--k8s-manager1、k8s-manager简介：

①、k8s-manager是一个基于浏览器的接口Kubernetes API，功能同kubectl。

②、当前版本和官方的kube-dashboard，但不是一个等级

③、k8s-manager镜像有200M左右，有点大，登陆进去，运行的是nginx服务，nginx配置文件：/etc/nginx/sites-enabled/default，主目录：/var/www

④、web界面只能查看namespace、events、nodes等简单信息

⑤、Resource Quotas功能，未开通，期待

⑥、仅供学习扩展

2、部署：①、下载镜像：

docker pull mlamina/k8s-manager:latest

看下载过程，发现这个镜像在build的时候，有很多RUN

[root@localhost kube-1.2]# docker pull mlamina/k8s-manager:latest

Trying to pull repository docker.io/mlamina/k8s-manager ... latest: Pulling from mlamina/k8s-manager

cacc99976415: Pull complete

5b66679e02f4: Pull complete

1f8c9c887b89: Pull complete

f0dc6e5bff03: Pull complete

9dcf5abc367e: Pull complete

9fffafe11022: Pull complete

ca36392ac8a5: Pull complete

d26280472f7d: Pull complete

32e3fac5657a: Pull complete

3972aa49a3e3: Pull complete

4caa999e314e: Pull complete

1a2d1ead0644: Pull complete

2a06190131f5: Pull complete

104b4e83cb1b: Pull complete

2db0330dd6ee: Pull complete

af5842bf4830: Pull complete

d47dfdd163f1: Pull complete

d84ad8831181: Pull complete

dd66db5193b6: Pull complete

67fc7feb5c34: Pull complete

3cead704ab86: Pull complete

22b28de9f034: Already exists

Digest: sha256:53e80dcc60a6b23169025f323bcf85a6f5518ab1a973a8e3d294cc81e5ee0017

Status: Downloaded newer image for docker.io/mlamina/k8s-manager:latest

②、创建Namespace：

#创建namespace

[1065][root@www : kube-1.2]# cat kube-system.json

{

"kind": "Namespace",

"apiVersion": "v1",

"metadata": {

"name": "kube-system"

}

}

[1066][root@www : kube-1.2]#

[1066][root@www : kube-1.2]# kubectl create -f kube-system.json

namespace "kube-system" created

[1067][root@www : kube-1.2]#

③、创建k8s-manager副本及pod：

[1069][root@www: kube-1.2]# cat k8s-manager-rc.yml

apiVersion: v1

kind: ReplicationController

metadata:

name: k8s-manager

namespace: kube-system

labels:

app: k8s-manager

spec:

replicas: 1

selector:

app: k8s-manager

template:

metadata:

labels:

app: k8s-manager

spec:

containers:

- image: docker.io/mlamina/k8s-manager:latest

name: k8s-manager

resources:

limits:

cpu: 100m

memory: 50Mi

ports:

- containerPort: 80

name: http

[1070][root@www: kube-1.2]#

[1070][root@www: kube-1.2]# kubectl create -f k8s-manager-rc.yml

replicationcontroller "k8s-manager" created

[1071][root@www: kube-1.2]#

[1072][root@www: kube-1.2]# kubectl get pods --all-namespaces

NAMESPACE NAME READY STATUS RESTARTS AGE

kube-system k8s-manager-3ry8b 0/1 ContainerCreating 0 15s

[1072][root@www: kube-1.2]#

[1073][root@www: kube-1.2]# /usr/bin/kubectl describe pod k8s-manager-3ry8b --namespace=kube-system

Name: k8s-manager-3ry8b

Namespace: kube-system

Node: 192.168.16.234/192.168.16.234

Start Time: Wed, 29 Jun 2016 14:16:30 +0800

Labels: app=k8s-manager

Status: Running

IP: 172.22.3.2

Controllers: ReplicationController/k8s-manager

Containers:

k8s-manager:

Container ID: docker://54cdc0e3727ef91c9d32560fa8c16ec06b4371d33e0a38bfe36a2938c2324195

Image: docker.io/mlamina/k8s-manager:latest

Image ID: docker://22b28de9f0345b9add9bae73ea191a7441783ecfc3a4f0a68abec8dc3ee803ef

Port: 80/TCP

QoS Tier:

memory: Guaranteed

cpu: Guaranteed

Limits:

cpu: 100m

memory: 50Mi

Requests:

cpu: 100m

memory: 50Mi

State: Running

Started: Wed, 29 Jun 2016 14:16:50 +0800

Ready: True

Restart Count: 0

Environment Variables:

Conditions:

Type Status

Ready True

Volumes:

default-token-pu9pf:

Type: Secret (a volume populated by a Secret)

SecretName: default-token-pu9pf

Events:

FirstSeen LastSeen Count From SubobjectPath Type Reason Message

--------- -------- ----- ---- ------------- -------- ------ -------

52s 52s 1 {kubelet 192.168.16.234} spec.containers{k8s-manager} Normal Pulling pulling image "docker.io/mlamina/k8s-manager:latest"

47s 47s 1 {default-scheduler } Normal Scheduled Successfully assigned k8s-manager-3ry8b to 192.168.16.234

37s 37s 1 {kubelet 192.168.16.234} spec.containers{k8s-manager} Normal Pulled Successfully pulled image "docker.io/mlamina/k8s-manager:latest"

36s 36s 1 {kubelet 192.168.16.234} spec.containers{k8s-manager} Normal Created Created container with docker id 54cdc0e3727e

35s 35s 1 {kubelet 192.168.16.234} spec.containers{k8s-manager} Normal Started Started container with docker id 54cdc0e3727e

[1074][root@www: kube-1.2]#

[1074][root@www: kube-1.2]# kubectl get pods --all-namespaces

NAMESPACE NAME READY STATUS RESTARTS AGE

kube-system k8s-manager-3ry8b 1/1 Running 0 53s

[1075][root@www: kube-1.2]#

④、创建service：

[1075][root@www: kube-1.2]# cat k8s-manager-svc.yml

apiVersion: v1

kind: Service

metadata:

name: k8s-manager

namespace: kube-system

labels:

app: k8s-manager

spec:

ports:

- port: 80

targetPort: http

selector:

app: k8s-manager

[1076][root@www: kube-1.2]#

[1076][root@www: kube-1.2]# kubectl create -f k8s-manager-svc.yml

service "k8s-manager" created

[1077][root@www: kube-1.2]#

[1077][root@www: kube-1.2]#

[1077][root@www: kube-1.2]# kubectl get services --all-namespaces

NAMESPACE NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE

default kubernetes 10.1.0.1 443/TCP 8m

kube-system k8s-manager 10.1.65.137 80/TCP 4s

[1078][root@www: kube-1.2]#

3、k8s-manager界面介绍：

访问web：

http://192.168.16.100:8080/api/v1/proxy/namespaces/kube-system/services/k8s-manager/

官网上是用https的，但不行，无所谓了

After reading the above, do you understand the essence of k8s user interface k8s-manager and how to deploy it? If you still want to learn more skills or want to know more related content, welcome to pay attention to the industry information channel, thank you for reading!

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