記事のディレクトリ
簡単な紹介
1.熟悉kubectl组件命令等，需要首先你搭建模拟kubernetes环境,参考下面地址：
https://blog.csdn.net/u014636209/article/details/103659604
kubectl [kubectlコンポーネントは、すべてのコマンドがあります]
localhost:minikube gaoxinfu$ kubectl
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
delete Delete resources by filenames, stdin, resources and names, or by resources and label selector
Deploy Commands:
rollout Manage the rollout of a resource
scale Set a new size for a Deployment, ReplicaSet or Replication Controller
autoscale 自动调整一个 Deployment, ReplicaSet, 或者 ReplicationController 的副本数量
Cluster Management Commands:
certificate 修改 certificate 资源.
cluster-info 显示集群信息
top Display Resource (CPU/Memory/Storage) usage.
cordon 标记 node 为 unschedulable
uncordon 标记 node 为 schedulable
drain Drain node in preparation for maintenance
taint 更新一个或者多个 node 上的 taints
Troubleshooting and Debugging Commands:
describe 显示一个指定 resource 或者 group 的 resources 详情
logs 输出容器在 pod 中的日志
attach Attach 到一个运行中的 container
exec 在一个 container 中执行一个命令
port-forward Forward one or more local ports to a pod
proxy 运行一个 proxy 到 Kubernetes API server
cp 复制 files 和 directories 到 containers 和从容器中复制 files 和 directories.
auth Inspect authorization
Advanced Commands:
diff Diff live version against would-be applied version
apply 通过文件名或标准输入流(stdin)对资源进行配置
patch 使用 strategic merge patch 更新一个资源的 field(s)
replace 通过 filename 或者 stdin替换一个资源
wait Experimental: Wait for a specific condition on one or many resources.
convert 在不同的 API versions 转换配置文件
kustomize Build a kustomization target from a directory or a remote url.
Settings Commands:
label 更新在这个资源上的 labels
annotate 更新一个资源的注解
completion Output shell completion code for the specified shell (bash or zsh)
Other Commands:
api-resources Print the supported API resources on the server
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.
version 输出 client 和 server 的版本信息
Usage:
kubectl [flags] [options]
Use "kubectl <command> --help" for more information about a given command.
Use "kubectl options" for a list of global command-line options (applies to all commands).
localhost:minikube gaoxinfu$
基本コマンド基本的なコマンド（初心者）
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
-f pod_nginx.yamlを作成kubectl [ポッドを作成します]
まず、設定ファイルはymalのポッドを作成しています
apiVersion: v1
kind: Pod
metadata:
name: nginx
spec:
containers:
- name: nginx
image: nginx
-f pod_nginx.yamlを作成kubectl [スタート]
localhost:demo-nginx gaoxinfu$ kubectl create -f pod_nginx.yaml
localhost:demo-nginx gaoxinfu$
基本コマンド基本的なコマンド（アップグレード）
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
delete Delete resources by filenames, stdin, resources and names, or by resources and label selector
kubectl GETポッド[ビューポッド情報]
localhost:demo-nginx gaoxinfu$ kubectl get pods
NAME READY STATUS RESTARTS AGE
nginx 0/1 ContainerCreating 0 27s
kubectl GETポッド-o広い[より全体的なビューポッドの情報]
localhost:demo-nginx gaoxinfu$ kubectl get pods -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
nginx 1/1 Running 0 58s 172.17.0.6 minikube <none> <none>
展開コマンド[展開コマンド]
rollout Manage the rollout of a resource
scale Set a new size for a Deployment, ReplicaSet or Replication Controller
autoscale 自动调整一个 Deployment, ReplicaSet, 或者 ReplicationController 的副本数量
クラスタ管理コマンド[クラスタ管理コマンド]
certificate 修改 certificate 资源.
cluster-info 显示集群信息
top Display Resource (CPU/Memory/Storage) usage.
cordon 标记 node 为 unschedulable
uncordon 标记 node 为 schedulable
drain Drain node in preparation for maintenance
taint 更新一个或者多个 node 上的 taints
トラブルシューティングとデバッグコマンド[トラブルシューティングやデバッグコマンド]
describe 显示一个指定 resource 或者 group 的 resources 详情
logs 输出容器在 pod 中的日志
attach Attach 到一个运行中的 container
exec 在一个 container 中执行一个命令
port-forward Forward one or more local ports to a pod
proxy 运行一个 proxy 到 Kubernetes API server
cp 复制 files 和 directories 到 containers 和从容器中复制 files 和 directories.
auth Inspect authorization
ポッドnginxの記述kubectl [ショーのポッドを詳細]
localhost:demo-nginx gaoxinfu$ kubectl describe pod nginx
Name: nginx
Namespace: default
Priority: 0
Node: minikube/192.168.99.103
Start Time: Sun, 29 Dec 2019 08:48:11 +0800
Labels: <none>
Annotations: <none>
Status: Running
IP: 172.17.0.6
IPs:
IP: 172.17.0.6
Containers:
nginx:
Container ID: docker://f763e419c3d2c1f75a627685615b7c62ca96a4cf4634dd746239b35c138e5690
Image: nginx
Image ID: docker-pullable://nginx@sha256:b2d89d0a210398b4d1120b3e3a7672c16a4ba09c2c4a0395f18b9f7999b768f2
Port: <none>
Host Port: <none>
State: Running
Started: Sun, 29 Dec 2019 08:48:51 +0800
Ready: True
Restart Count: 0
Environment: <none>
Mounts:
/var/run/secrets/kubernetes.io/serviceaccount from default-token-nqwpt (ro)
Conditions:
Type Status
Initialized True
Ready True
ContainersReady True
PodScheduled True
Volumes:
default-token-nqwpt:
Type: Secret (a volume populated by a Secret)
SecretName: default-token-nqwpt
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 <unknown> default-scheduler Successfully assigned default/nginx to minikube
Normal Pulling 102s kubelet, minikube Pulling image "nginx"
Normal Pulled 64s kubelet, minikube Successfully pulled image "nginx"
Normal Created 64s kubelet, minikube Created container nginx
Normal Started 63s kubelet, minikube Started container nginx
localhost:demo-nginx gaoxinfu$
kubectl EXEC -it nginxのバッシュ[nginxの容器に入ります]
localhost:demo-nginx gaoxinfu$ kubectl get pods
NAME READY STATUS RESTARTS AGE
nginx 1/1 Running 0 21m
localhost:demo-nginx gaoxinfu$ kubectl exec -it nginx bash
root@nginx:/#
注意はもちろん、私たちは、ドッキングウィンドウを介して容器に入ることができます
localhost:demo-nginx gaoxinfu$ minikube ssh
_ _
_ _ ( ) ( )
___ ___ (_) ___ (_)| |/') _ _ | |_ __
/' _ ` _ `\| |/' _ `\| || , < ( ) ( )| '_`\ /'__`\
| ( ) ( ) || || ( ) || || |\`\ | (_) || |_) )( ___/
(_) (_) (_)(_)(_) (_)(_)(_) (_)`\___/'(_,__/'`\____)
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f763e419c3d2 nginx "nginx -g 'daemon of…" 23 minutes ago Up 23 minutes k8s_nginx_nginx_default_6efd7547-6865-4338-8b1f-2f03399945b0_0
$ docker exec -it f763e419c3d2 bash
root@nginx:/#
1.因为我这里kubernetes是通过minikube进行搭建的，所以需要首先执行
minikube ssh 进行登录一下
2.f763e419c3d2 是nginx容器的id
高度なコマンド[高コマンド]
diff Diff live version against would-be applied version
apply 通过文件名或标准输入流(stdin)对资源进行配置
patch 使用 strategic merge patch 更新一个资源的 field(s)
replace 通过 filename 或者 stdin替换一个资源
wait Experimental: Wait for a specific condition on one or many resources.
convert 在不同的 API versions 转换配置文件
kustomize Build a kustomization target from a directory or a remote url.
設定コマンド[設定]コマンド]
label 更新在这个资源上的 labels
annotate 更新一个资源的注解
completion Output shell completion code for the specified shell (bash or zsh)
他のコマンド[その他のコマンド]
kubectlバージョン[表示kubernetes版]
localhost:minikube gaoxinfu$ kubectl version
Client Version: version.Info{Major:"1", Minor:"17", GitVersion:"v1.17.0", GitCommit:"70132b0f130acc0bed193d9ba59dd186f0e634cf", GitTreeState:"clean", BuildDate:"2019-12-07T21:20:10Z", GoVersion:"go1.13.4", Compiler:"gc", Platform:"darwin/amd64"}
Server Version: version.Info{Major:"1", Minor:"17", GitVersion:"v1.17.0", GitCommit:"70132b0f130acc0bed193d9ba59dd186f0e634cf", GitTreeState:"clean", BuildDate:"2019-12-07T21:12:17Z", GoVersion:"go1.13.4", Compiler:"gc", Platform:"linux/amd64"}
localhost:minikube gaoxinfu$
kubectlコンフィグ[kubernetes構成情報に関連するコマンド]
localhost:minikube gaoxinfu$ kubectl config --help
Modify kubeconfig files using subcommands like "kubectl config set current-context my-context"
The loading order follows these rules:
1. If the --kubeconfig flag is set, then only that file is loaded. The flag may only be set once and no merging takes
place.
2. If $KUBECONFIG environment variable is set, then it is used as a list of paths (normal path delimiting rules for
your system). These paths are merged. When a value is modified, it is modified in the file that defines the stanza. When
a value is created, it is created in the first file that exists. If no files in the chain exist, then it creates the
last file in the list.
3. Otherwise, ${HOME}/.kube/config is used and no merging takes place.
Available Commands:
current-context 显示 current_context
delete-cluster 删除 kubeconfig 文件中指定的集群
delete-context 删除 kubeconfig 文件中指定的 context
get-clusters 显示 kubeconfig 文件中定义的集群
get-contexts 描述一个或多个 contexts
rename-context Renames a context from the kubeconfig file.
set 设置 kubeconfig 文件中的一个单个值
set-cluster 设置 kubeconfig 文件中的一个集群条目
set-context 设置 kubeconfig 文件中的一个 context 条目
set-credentials 设置 kubeconfig 文件中的一个用户条目
unset 取消设置 kubeconfig 文件中的一个单个值
use-context 设置 kubeconfig 文件中的当前上下文
view 显示合并的 kubeconfig 配置或一个指定的 kubeconfig 文件
Usage:
kubectl config SUBCOMMAND [options]
Use "kubectl <command> --help" for more information about a given command.
Use "kubectl options" for a list of global command-line options (applies to all commands).
localhost:minikube gaoxinfu$
kubectlコンフィグGET-コンテキスト
localhost:minikube gaoxinfu$ kubectl config get-context
error: unknown command "get-context"
See 'kubectl config -h' for help and examples
localhost:minikube gaoxinfu$ kubectl config get-contexts
CURRENT NAME CLUSTER AUTHINFO NAMESPACE
* minikube minikube minikube
localhost:minikube gaoxinfu$ kubectl config current-context
minikube
localhost:minikube gaoxinfu$
