kubectl-show
A kubectl Plugin with Python
Install
pip install kubectl-show
Version 22.1.0.14
- 22为kubernetes sdk主版本，22支持k8s版本1.21-1.23
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, bool,指定该参数则为true
- -n namespace，--namespace
- -k svc,pod,..., --kind 指定资源类型,资源类型名称与k8s一直，支持缩写
- -f github|plain..., table format, --fmt 输出格式化
参考tabulate
- -i , table index, --index, 输出增加行号，query(command)中有效
- -s "xx", --strip, 输出镜像信息时将该字符串替换为空，query(command)中有效
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 query count
kubectl-show query count -A -k pod,deployment,rc,svc,cm
namespace pod deployment replicaset service configmap
all-namespaces 23 12 12 20 27
argo 2 2 2 2 2
default 4 1 1 4 1
istio-system 6 6 6 11 12
kube-node-lease 0 0 0 0 1
kube-public 0 0 0 0 2
kube-system 9 1 1 1 6
kubernetes-dashboard 2 2 2 2 2
operator 0 0 0 0 1kubectl-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 create -f -
