k8s-kubectl 命令管理（常规命令操作集锦）
文章目录
- 前言
- 一、kubectl管理
-
- 使用kubectl命令管理项目的生命周期
- 1.1 项目周期
-
- 1：创建nginx
- 2：发布nginx
- 3：更新nginx 为1.14版本
- 4：回滚nginx
- 5：删除nginx，查看deployment（控制器--定位资源的类型）
前言
k8s管理资源的方法：
-
1：kubectl 命令管理
项目周期：创建—》发布—》更新—》回滚—》删除 -
2：文件形式管理 yaml json
-
3：harbor对接K8S pod管理
一、kubectl管理
Kubectl是管理k8s集群的命令行工具，通过生成的json格式传递给apiserver进行创建、查看、管理的操作。
- 更全的kubectl命令请查看kubectl --help
[root@master dashboard]# kubectl --help
kubectl controls the Kubernetes cluster manager.
Find more information at: https://kubernetes.io/docs/reference/kubectl/overview/
Basic Commands (Beginner):
create Create a resource from a file or from stdin.
expose 使用 replication controller, service, deployment 或者 pod 并暴露它作为一个 新的
Kubernetes Service
run 在集群中运行一个指定的镜像
set 为 objects 设置一个指定的特征
Basic Commands (Intermediate):
explain 查看资源的文档
get 显示一个或更多 resources
edit 在服务器上编辑一个资源 #（直接编辑现在运行中的资源）
delete Delete resources by filenames, stdin, resources and names, or by resources and label selector
Deploy Commands: #（业务部署时用的指令）
rollout Manage the rollout of a resource #（回滚到上一次）
scale 为 Deployment, ReplicaSet, Replication Controller 或者 Job 设置一个新的副本数量 #（弹性伸缩中的功能，设置副本数量）
autoscale 自动调整一个 Deployment, ReplicaSet, 或者 ReplicationController 的副本数量 #(自适应数量，自动弹性伸缩）
Cluster Management Commands: #（集群管理指令）
certificate 修改 certificate 资源. #（申请证书颁发时）
cluster-info 显示集群信息
top Display Resource (CPU/Memory/Storage) usage. #（查看资源动态）
cordon 标记 node 为 unschedulable #（设置标记，要配合taint使用，taint：污点）
uncordon 标记 node 为 schedulable
drain Drain node in preparation for maintenance #（一个清除服务）
taint 更新一个或者多个 node 上的 taints #（一旦被标记为污点状态，则pod不会在这个节点创建）
Troubleshooting and Debugging Commands:
describe 显示一个指定 resource 或者 group 的 resources 详情 #（非常有用：用来做排障）
logs 输出容器在 pod 中的日志 #（作用于排障）
attach Attach 到一个运行中的 container #（连接到这个容器：远程连接）
exec 在一个 container 中执行一个命令 #（进入容器）
port-forward Forward one or more local ports to a pod #（负责端口转发）
proxy 运行一个 proxy 到 Kubernetes API server #（做代理）
cp 复制 files 和 directories 到 containers 和从容器中复制 files 和 directories. #（复制一个文件或目录到容器中）
auth Inspect authorization #（验证）
Advanced Commands: #（高级指令）
apply 通过文件名或标准输入流(stdin)对资源进行配置 #（资源创建、更新、业务升级）
patch 使用 strategic merge patch 更新一个资源的 field(s) #（更新一个指令性资源）
replace 通过 filename 或者 stdin替换一个资源 #（替换）
wait Experimental: Wait for a specific condition on one or many resources. #（等待）
convert 在不同的 API versions 转换配置文件 #（做二次开发的时候写参数）
Settings Commands:
label 更新在这个资源上的 labels #（更新一个资源到备注，打注释）
annotate 更新一个资源的注解
completion Output shell completion code for the specified shell (bash or zsh) #（输出代码到指定的bash环境下）
Other Commands:
alpha Commands for features in alpha
api-resources Print the supported API resources on the server #（告诉你哪一条指令可以缩写，kubectl api-resources）
api-versions Print the supported API versions on the server, in the form of "group/version"
config 修改 kubeconfig 文件
plugin Provides utilities for interacting with plugins. #(插件)
version 输出 client 和 server 的版本信息
Usage:
kubectl [flags] [options]
Use "kubectl --help" for more information about a given command.
Use "kubectl options" for a list of global command-line options (applies to all commands).
使用kubectl命令管理项目的生命周期
- 项目的生命周期：创建、发布、更新、回滚、删除
- 创建 kubectl run命令
格式：
kubectl run NAME --image=image [--env="key=value"] [--port=port] [--replicas=replicas]
[--dry-run=bool] [--overrides=inline-json] [--command] -- [COMMAND] [args...] [options]
创建一个nginx的pod
[root@master ~]# kubectl run nginx --image=nginx:latest --port=80 --replicas=3
kubectl run --generator=deployment/apps.v1beta1 is DEPRECATED and will be removed in a future version. Use kubectl create instead.
deployment.apps/nginx created
动态查看过程 -w（Ctrl+C 中断监控）
[root@master ~]# kubectl get pods -w
NAME READY STATUS RESTARTS AGE
nginx-7697996758-7ffmp 0/1 ContainerCreating 0 4s
nginx-7697996758-f254k 0/1 ContainerCreating 0 4s
nginx-7697996758-jspdw 0/1 ContainerCreating 0 4s
nginx-7697996758-jspdw 1/1 Running 0 16s
nginx-7697996758-7ffmp 1/1 Running 0 17s
nginx-7697996758-f254k 1/1 Running 0 32s
查看更详细的信息，查看资源创建在那个节点上
[root@master ~]# kubectl get pods -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE
nginx-7697996758-7ffmp 1/1 Running 0 97s 172.17.41.2 14.0.0.55 <none>
nginx-7697996758-f254k 1/1 Running 0 97s 172.17.41.3 14.0.0.55 <none>
nginx-7697996758-jspdw 1/1 Running 0 97s 172.17.55.2 14.0.0.33 <none>
查看更多资源：（deploy 控制器资源、rs 副本集资源）
[root@master ~]# kubectl get pods,svc,deploy,rs -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE
pod/nginx-7697996758-7ffmp 1/1 Running 0 41m 172.17.41.2 14.0.0.55 <none>
pod/nginx-7697996758-f254k 1/1 Running 0 41m 172.17.41.3 14.0.0.55 <none>
pod/nginx-7697996758-jspdw 1/1 Running 0 41m 172.17.55.2 14.0.0.33 <none>
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECTOR
service/kubernetes ClusterIP 10.0.0.1 <none> 443/TCP 11d <none>
NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE CONTAINERS IMAGES SELECTOR
deployment.extensions/nginx 3 3 3 3 41m nginx nginx:latest run=nginx
NAME DESIRED CURRENT READY AGE CONTAINERS IMAGES SELECTOR
replicaset.extensions/nginx-7697996758 3 3 3 41m nginx nginx:latest pod-template-hash=7697996758,run=nginx
也可以kubectl get all
[root@master ~]# kubectl get all -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE
pod/nginx-7697996758-7ffmp 1/1 Running 0 42m 172.17.41.2 14.0.0.55 <none>
pod/nginx-7697996758-f254k 1/1 Running 0 42m 172.17.41.3 14.0.0.55 <none>
pod/nginx-7697996758-jspdw 1/1 Running 0 42m 172.17.55.2 14.0.0.33 <none>
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECTOR
service/kubernetes ClusterIP 10.0.0.1 <none> 443/TCP 11d <none>
NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE CONTAINERS IMAGES SELECTOR
deployment.apps/nginx 3 3 3 3 42m nginx nginx:latest run=nginx
NAME DESIRED CURRENT READY AGE CONTAINERS IMAGES SELECTOR
replicaset.apps/nginx-7697996758 3 3 3 42m nginx nginx:latest pod-template-hash=7697996758,run=nginx
- 删除
[root@master ~]# kubectl delete deploy/nginx
deployment.extensions "nginx" deleted
[root@master ~]# kubectl get all
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/kubernetes ClusterIP 10.0.0.1 <none> 443/TCP 11d
##service会保留下来，因为是单独的功能
[root@master ~]# kubectl delete service/kubernetes
service "kubernetes" deleted
[root@master ~]# kubectl get all
No resources found.
1.1 项目周期
1：创建nginx
[root@master ~]# kubectl run nginx --image=nginx:latest --port=80 --replicas=3
kubectl run --generator=deployment/apps.v1beta1 is DEPRECATED and will be removed in a future version. Use kubectl create instead.
deployment.apps/nginx created
[root@master ~]# kubectl get pods,deployment,rs,svc
NAME READY STATUS RESTARTS AGE
pod/nginx-7697996758-6g2w5 1/1 Running 0 59s
pod/nginx-7697996758-jl2qk 1/1 Running 0 59s
pod/nginx-7697996758-s2mts 1/1 Running 0 59s
NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE
deployment.extensions/nginx 3 3 3 3 59s
NAME DESIRED CURRENT READY AGE
replicaset.extensions/nginx-7697996758 3 3 3 59s
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/kubernetes ClusterIP 10.0.0.1 <none> 443/TCP 116s
2：发布nginx
service提供负载均衡的功能（相当于建立端口映射）
语法：
kubectl expose (-f FILENAME | TYPE NAME) [--port=port] [--protocol=TCP|UDP|SCTP]
[--target-port=number-or-name] [--name=name] [--external-ip=external-ip-of-service] [--type=type]
[root@master ~]# kubectl expose deployment nginx --port=80 --name=nginx-service --type=NodePort
service/nginx-service exposed
[root@master ~]# kubectl get all
NAME READY STATUS RESTARTS AGE
pod/nginx-7697996758-6g2w5 1/1 Running 0 19m
pod/nginx-7697996758-jl2qk 1/1 Running 0 19m
pod/nginx-7697996758-s2mts 1/1 Running 0 19m
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/kubernetes ClusterIP 10.0.0.1 <none> 443/TCP 20m
service/nginx-service NodePort 10.0.0.100 <none> 80:38448/TCP 3m41s
NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE
deployment.apps/nginx 3 3 3 3 19m
NAME DESIRED CURRENT READY AGE
replicaset.apps/nginx-7697996758 3 3 3 19m
//查看资源对象简写
[root@master ~]# kubectl api-resources
//查看关联后端的节点
[root@master ~]# kubectl get endpoints
NAME ENDPOINTS AGE
kubernetes 14.0.0.11:6443,14.0.0.66:6443 21m
nginx-service 172.17.41.2:80,172.17.41.3:80,172.17.55.2:80 5m12s
//网络状态详细信息
[root@master ~]# kubectl get pods -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE
nginx-7697996758-6g2w5 1/1 Running 0 24m 172.17.41.3 14.0.0.55 <none>
nginx-7697996758-jl2qk 1/1 Running 0 24m 172.17.41.2 14.0.0.55 <none>
nginx-7697996758-s2mts 1/1 Running 0 24m 172.17.55.2 14.0.0.33 <none>
//服务暴露的端口
[root@master ~]# kubectl get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
kubernetes ClusterIP 10.0.0.1 <none> 443/TCP 27m
nginx-service NodePort 10.0.0.100 <none> 80:38448/TCP 11m
- 在node01操作，查看负载均衡端口38804
- kubernetes里kube-proxy支持三种模式，在v1.8之前我们使用的是iptables 以及 userspace两种模式，在kubernetes 1.8之后引入了ipvs（负载均衡）模式
[root@node01 ~]# yum install ipvsadm -y
##查看负载均衡
[root@node01 ~]# ipvsadm -L -n
......
TCP 14.0.0.33:38448 rr
-> 172.17.41.2:80 Masq 1 0 0
-> 172.17.41.3:80 Masq 1 0 0
-> 172.17.55.2:80 Masq 1 0 0
- 在node02操作 同样安装ipvsadmin工具查看
[root@node02 ~]# yum install ipvsadm -y
[root@node02 ~]# ipvsadm -L -n
.......
TCP 14.0.0.55:38448 rr
-> 172.17.41.2:80 Masq 1 0 0
-> 172.17.41.3:80 Masq 1 0 0
-> 172.17.55.2:80 Masq 1 0 0
- 在master01操作 查看访问日志（注意：如果访问其他node无法访问检查proxy组件）
- 网页访问：14.0.0.33:38448
[root@master ~]# kubectl get pods
NAME READY STATUS RESTARTS AGE
nginx-7697996758-6g2w5 1/1 Running 0 61m
nginx-7697996758-jl2qk 1/1 Running 0 61m
nginx-7697996758-s2mts 1/1 Running 0 61m
[root@master ~]# kubectl logs nginx-7697996758-6g2w5
/docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration
/docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/
/docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh
10-listen-on-ipv6-by-default.sh: Getting the checksum of /etc/nginx/conf.d/default.conf
10-listen-on-ipv6-by-default.sh: Enabled listen on IPv6 in /etc/nginx/conf.d/default.conf
/docker-entrypoint.sh: Launching /docker-entrypoint.d/20-envsubst-on-templates.sh
/docker-entrypoint.sh: Configuration complete; ready for start up
[root@master ~]# kubectl logs nginx-7697996758-jl2qk
/docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration
/docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/
/docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh
10-listen-on-ipv6-by-default.sh: Getting the checksum of /etc/nginx/conf.d/default.conf
10-listen-on-ipv6-by-default.sh: Enabled listen on IPv6 in /etc/nginx/conf.d/default.conf
/docker-entrypoint.sh: Launching /docker-entrypoint.d/20-envsubst-on-templates.sh
/docker-entrypoint.sh: Configuration complete; ready for start up
[root@master ~]# kubectl logs nginx-7697996758-s2mts
/docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration
/docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/
/docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh
10-listen-on-ipv6-by-default.sh: Getting the checksum of /etc/nginx/conf.d/default.conf
10-listen-on-ipv6-by-default.sh: Enabled listen on IPv6 in /etc/nginx/conf.d/default.conf
/docker-entrypoint.sh: Launching /docker-entrypoint.d/20-envsubst-on-templates.sh
/docker-entrypoint.sh: Configuration complete; ready for start up
172.17.55.1 - - [11/Oct/2020:11:50:28 +0000] "GET / HTTP/1.1" 200 612 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.121 Safari/537.36" "-"
2020/10/11 11:50:28 [error] 28#28: *1 open() "/usr/share/nginx/html/favicon.ico" failed (2: No such file or directory), client: 172.17.55.1, server: localhost, request: "GET /favicon.ico HTTP/1.1", host: "14.0.0.33:38448", referrer: "http://14.0.0.33:38448/"
172.17.55.1 - - [11/Oct/2020:11:50:28 +0000] "GET /favicon.ico HTTP/1.1" 404 555 "http://14.0.0.33:38448/" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.121 Safari/537.36" "-"
3：更新nginx 为1.14版本
- 谷歌浏览器重新加载刷新页面查看nginx版本信息
[root@master ~]# kubectl set --help
Configure application resources
These commands help you make changes to existing application resources.
Available Commands:
env Update environment variables on a pod template
image 更新一个 pod template 的镜像
resources 在对象的 pod templates 上更新资源的 requests/limits
selector 设置 resource 的 selector
serviceaccount Update ServiceAccount of a resource
subject Update User, Group or ServiceAccount in a RoleBinding/ClusterRoleBinding
Usage:
kubectl set SUBCOMMAND [options]
Use "kubectl --help" for more information about a given command.
Use "kubectl options" for a list of global command-line options (applies to all commands).
- 获取修改模板
[root@master ~]# kubectl set image --help
Examples:
# Set a deployment's nginx container image to 'nginx:1.9.1', and its busybox container image to 'busybox'.
kubectl set image deployment/nginx busybox=busybox nginx=nginx:1.9.1
[root@master ~]# kubectl set image deployment/nginx nginx=nginx:1.14
deployment.extensions/nginx image updated
- 处于动态监听状态（滚动更新：先创建再销毁）
[root@master ~]# kubectl get pods -w
NAME READY STATUS RESTARTS AGE
nginx-6ff7c89c7c-vw8ld 0/1 ContainerCreating 0 1s
nginx-779989c576-7b8jt 1/1 Running 0 70s
nginx-779989c576-klkwn 1/1 Running 0 59s
nginx-779989c576-z9gmj 1/1 Running 0 82s
nginx-6ff7c89c7c-vw8ld 1/1 Running 0 2s
nginx-779989c576-klkwn 1/1 Terminating 0 60s
nginx-6ff7c89c7c-r5xvd 0/1 Pending 0 0s
nginx-6ff7c89c7c-r5xvd 0/1 Pending 0 0s
nginx-6ff7c89c7c-r5xvd 0/1 ContainerCreating 0 0s
nginx-779989c576-klkwn 0/1 Terminating 0 61s
nginx-6ff7c89c7c-r5xvd 1/1 Running 0 2s
nginx-779989c576-7b8jt 1/1 Terminating 0 73s
nginx-6ff7c89c7c-qvcrv 0/1 Pending 0 0s
nginx-779989c576-klkwn 0/1 Terminating 0 62s
nginx-6ff7c89c7c-qvcrv 0/1 Pending 0 0s
nginx-779989c576-klkwn 0/1 Terminating 0 62s
nginx-6ff7c89c7c-qvcrv 0/1 ContainerCreating 0 0s
nginx-779989c576-7b8jt 0/1 Terminating 0 74s
nginx-779989c576-7b8jt 0/1 Terminating 0 75s
nginx-779989c576-7b8jt 0/1 Terminating 0 75s
nginx-6ff7c89c7c-qvcrv 1/1 Running 0 2s
nginx-779989c576-z9gmj 1/1 Terminating 0 87s
nginx-779989c576-z9gmj 0/1 Terminating 0 88s
nginx-779989c576-z9gmj 0/1 Terminating 0 95s
nginx-779989c576-z9gmj 0/1 Terminating 0 95s
#Ctrl+c中断监听，更新速度快
^C[root@master ~]# kubectget pods
NAME READY STATUS RESTARTS AGE
nginx-6ff7c89c7c-qvcrv 1/1 Running 0 45s
nginx-6ff7c89c7c-r5xvd 1/1 Running 0 47s
nginx-6ff7c89c7c-vw8ld 1/1 Running 0 49s
刷新页面：
4：回滚nginx
[root@master ~]# kubectl rollout --help
Manage the rollout of a resource.
Valid resource types include:
* deployments
* daemonsets
* statefulsets
Examples:
# Rollback to the previous deployment
kubectl rollout undo deployment/abc
# Check the rollout status of a daemonset
kubectl rollout status daemonset/foo
Available Commands:
history 显示 rollout 历史
pause 标记提供的 resource 为中止状态
resume 继续一个停止的 resource
status 显示 rollout 的状态
undo 撤销上一次的 rollout
Usage:
kubectl rollout SUBCOMMAND [options]
Use "kubectl --help" for more information about a given command.
Use "kubectl options" for a list of global command-line options (applies to all commands).
- 查看历史版本
[root@master ~]# kubectl rollout history deployment/nginx
deployment.extensions/nginx
REVISION CHANGE-CAUSE
1 <none>
2 <none>
- 执行回滚
[root@master ~]# kubectl rollout undo deployment/nginx
deployment.extensions/nginx
[root@master ~]# kubectl get pods -w
NAME READY STATUS RESTARTS AGE
nginx-6ff7c89c7c-r5xvd 1/1 Running 0 10m
nginx-6ff7c89c7c-vw8ld 1/1 Running 0 10m
nginx-779989c576-dns5t 1/1 Running 0 5s
nginx-779989c576-pwgtq 0/1 ContainerCreating 0 2s
nginx-779989c576-pwgtq 1/1 Running 0 3s
nginx-6ff7c89c7c-r5xvd 1/1 Terminating 0 10m
nginx-779989c576-dm4d7 0/1 Pending 0 0s
nginx-779989c576-dm4d7 0/1 Pending 0 0s
nginx-779989c576-dm4d7 0/1 ContainerCreating 0 0s
nginx-6ff7c89c7c-r5xvd 0/1 Terminating 0 10m
nginx-779989c576-dm4d7 1/1 Running 0 3s
nginx-6ff7c89c7c-vw8ld 1/1 Terminating 0 10m
nginx-6ff7c89c7c-vw8ld 0/1 Terminating 0 10m
nginx-6ff7c89c7c-vw8ld 0/1 Terminating 0 10m
nginx-6ff7c89c7c-vw8ld 0/1 Terminating 0 10m
nginx-6ff7c89c7c-vw8ld 0/1 Terminating 0 10m
nginx-6ff7c89c7c-r5xvd 0/1 Terminating 0 10m
nginx-6ff7c89c7c-r5xvd 0/1 Terminating 0 10m
- 检查回滚状态
[root@master ~]# kubectl rollout status deployment/nginx
deployment "nginx" successfully rolled out
5：删除nginx，查看deployment（控制器–定位资源的类型）
[root@master ~]# kubectl get deploy
NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE
nginx 3 3 3 3 110m
[root@master ~]# kubectl delete deployment/nginx
deployment.extensions "nginx" deleted
[root@master ~]# kubectl get deploy
No resources found.
[root@master ~]# kubectl get pods
No resources found.
- 删除服务SVC
[root@master ~]# kubectl get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
kubernetes ClusterIP 10.0.0.1 <none> 443/TCP 113m
nginx-service NodePort 10.0.0.100 <none> 80:38448/TCP 97m
[root@master ~]# kubectl delete svc/nginx-service
service "nginx-service" deleted
[root@master ~]# kubectl get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
kubernetes ClusterIP 10.0.0.1 <none> 443/TCP 114m
- 查看具体资源的详细信息
[root@master ~]# kubectl run nginx --image=nginx:latest --port=80 --replicas=3
kubectl run --generator=deployment/apps.v1beta1 is DEPRECATED and will be removed in a future version. Use kubectl create instead.
deployment.apps/nginx created
[root@master ~]# kubectl get pods
NAME READY STATUS RESTARTS AGE
nginx-7697996758-kvt4r 1/1 Running 0 31s
nginx-7697996758-pk2cw 1/1 Running 0 31s
nginx-7697996758-v44c9 1/1 Running 0 31s
[root@master ~]# kubectl describe pod nginx-7697996758-kvt4r
Name: nginx-7697996758-kvt4r
Namespace: default
Priority: 0
PriorityClassName: <none>
Node: 14.0.0.55/14.0.0.55
Start Time: Sun, 11 Oct 2020 20:33:00 +0800
Labels: pod-template-hash=7697996758
run=nginx
Annotations: <none>
Status: Running
IP: 172.17.41.2
Controlled By: ReplicaSet/nginx-7697996758
Containers:
nginx:
Container ID: docker://19f64eacc4ba88315c4daa6ba975b73574985d9da2422d99a8d5cbd9b80bc3d4
Image: nginx:latest
Image ID: docker-pullable://nginx@sha256:fc66cdef5ca33809823182c9c5d72ea86fd2cef7713cf3363e1a0b12a5d77500
Port: 80/TCP
Host Port: 0/TCP
State: Running
Started: Sun, 11 Oct 2020 20:33:02 +0800
Ready: True
Restart Count: 0
Environment: <none>
Mounts:
/var/run/secrets/kubernetes.io/serviceaccount from default-token-x5xpc (ro)
Conditions:
Type Status
Initialized True
Ready True
ContainersReady True
PodScheduled True
Volumes:
default-token-x5xpc:
Type: Secret (a volume populated by a Secret)
SecretName: default-token-x5xpc
Optional: false
QoS Class: BestEffort
Node-Selectors: <none>
Tolerations: node.kubernetes.io/not-ready:NoExecute for 300s
node.kubernetes.io/unreachable:NoExecute for 300s
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal Scheduled 100s default-scheduler Successfully assigned default/nginx-7697996758-kvt4r to 14.0.0.55
Normal Pulling 99s kubelet, 14.0.0.55 pulling image "nginx:latest"
Normal Pulled 98s kubelet, 14.0.0.55 Successfully pulled image "nginx:latest"
Normal Created 98s kubelet, 14.0.0.55 Created container
Normal Started 98s kubelet, 14.0.0.55 Started container
- 查看deployment资源
[root@master ~]# kubectl describe deployment/nginx
Name: nginx
Namespace: default
CreationTimestamp: Sun, 11 Oct 2020 20:33:00 +0800
Labels: run=nginx
Annotations: deployment.kubernetes.io/revision: 1
Selector: run=nginx
Replicas: 3 desired | 3 updated | 3 total | 3 available | 0 unavailable
StrategyType: RollingUpdate
MinReadySeconds: 0
RollingUpdateStrategy: 25% max unavailable, 25% max surge
Pod Template:
Labels: run=nginx
Containers:
nginx:
Image: nginx:latest
Port: 80/TCP
Host Port: 0/TCP
Environment: <none>
Mounts: <none>
Volumes: <none>
Conditions:
Type Status Reason
---- ------ ------
Available True MinimumReplicasAvailable
Progressing True NewReplicaSetAvailable
OldReplicaSets: <none>
NewReplicaSet: nginx-7697996758 (3/3 replicas created)
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal ScalingReplicaSet 4m38s deployment-controller Scaled up replica set nginx-7697996758 to 3
- 进入pod
[root@master ~]# kubectl exec -it nginx-7697996758-kvt4r bash
root@nginx-7697996758-kvt4r:/# ls
bin dev docker-entrypoint.sh home lib64 mnt proc run srv tmp var
boot docker-entrypoint.d etc lib media opt root sbin sys usr
root@nginx-7697996758-kvt4r:/#