kubectl-show 22.1.0.13

kubectl python plugin

kubectl python plugin https://github.com/newpi6/kubectl-show.git

kubectl-show

A kubectl Plugin with Python

Install

pip install kubectl-show

Version 22.1.0.8

• 首位为kubernetes版本

Usage

kubectl-show [command] [sub-command] [flags] 以kubectl插件的方式运行：kubectl show [command] [sub-command] [flags]

command and sub-command

• q|query image|count 查询pod容器镜像|统计
• g|generate template [-k|--kind] 生成不同资源的yaml文件

flags

• -A all namespace，--ALL
• -k svc,pod,..., --kind 指定资源类型
• -f github|plain..., table format, --fmt 输出格式化

参考tabulate

• -i , table index, --index, 输出增加行号
• -s "xx", --strip, 输出镜像信息时将该字符串替换为空

example

kubectl show q images

# kubectl-show q images
namespace    pod name                               container name , image                        pod status    container status
default      apple-app                              [['apple-app', 'hashicorp/http-echo']]        Running       ['Ready']
default      banana-app                             [['banana-app', 'hashicorp/http-echo']]       Running       ['Ready']
default      kubernetes-downwardapi-volume-example  [['client-container', 'k8s.gcr.io/busybox']]  Running       ['Ready']
default      nginx-7b57989df-6q59k                  [['nginx', 'nginx']]                          Running       ['Ready']

# kubectl-show q images -A -f github
| namespace            | pod name                                  | container name , image                                                                                  | pod status   | container status           |
|----------------------|-------------------------------------------|---------------------------------------------------------------------------------------------------------|--------------|----------------------------|
| argo                 | argo-server-79bf45b5b7-qkn9z              | [['argo-server', 'quay.io/argoproj/argocli:latest']]                                                    | Running      | ['Ready']                  |
| argo                 | workflow-controller-64d4785c88-497xx      | [['workflow-controller', 'quay.io/argoproj/workflow-controller:latest']]                                | Running      | ['Ready']                  |
| default              | apple-app                                 | [['apple-app', 'hashicorp/http-echo']]                                                                  | Running      | ['Ready']                  |
| default              | banana-app                                | [['banana-app', 'hashicorp/http-echo']]                                                                 | Running      | ['Ready']                  |
| default              | kubernetes-downwardapi-volume-example     | [['client-container', 'k8s.gcr.io/busybox']]                                                            | Running      | ['Ready']                  |
| default              | nginx-7b57989df-6q59k                     | [['nginx', 'nginx']]                                                                                    | Running      | ['Ready']                  |
| istio-system         | grafana-64b4b8f789-fkzld                  | [['grafana', 'grafana/grafana:6.5.2']]                                                                  | Running      | ['Ready']                  |
| istio-system         | istio-egressgateway-6c9778c57c-tt6xs      | [['istio-proxy', 'docker.io/istio/proxyv2:1.5.0']]                                                      | Pending      | ['Not Ready']

kubectl-show g template

# kubectl-show g template  --name test-app --namespace default --replicas 3 -k deployment,svc
apiVersion: apps/v1
kind: Deployment
metadata:
  name: test-app
  namespace: default
spec:
  replicas: 3
  strategy:
    type: RollingUpdate
    rollingUpdate:
      maxSurge: 50%
      maxUnavailable: 50%
  selector:
    matchLabels:
      app: test-app
  template:
    metadata:
      labels:
        app: test-app
    spec:
      imagePullSecrets: []
      nodeSelector: {}
        #node.type: db
      tolerations: []
      #- key: "only"
      #  operator: "Equal"
      #  value: "db"
      #  effect: "NoSchedule"
      affinity:
        podAntiAffinity: {}
        nodeAffinity: {}
      volumes: []
      #- name: postgres
      #  hostPath:
      #    path: /data/middleware-data/postgres-data
      #    type: DirectoryOrCreate
      containers:
      - image: test-app
        imagePullPolicy: IfNotPresent
        name: test-app
        args: []
        env: []
        ports:
          - containerPort: 80
            name: http
        volumeMounts: []
          #- name: postgres
          #  subPath: postgres
          #  mountPath: /var/lib/postgresql/data
        resources:
          requests:
            memory: 50Mi
            cpu: 100m
            ephemeral-storage: "2Gi"
          limits:
            memory: 50Mi
            cpu: 100m
            ephemeral-storage: "10Gi"
---
apiVersion: v1
kind: Service
metadata:
  name: test-app
  namespace: default
spec:
  selector:
    app: test-app
  ports:
    - protocol: TCP
      port: 80
      targetPort: http
  type: NodePort

生成yaml配置并创建资源

kubectl-show g template --name test-app --namespace default --replicas 3 -k deployment,svc | kubectl apply -f -