Kubernetes Cookbook

1. Kubectl

1.1. Change current cluster

kubectl config get-contexts
kubectl cnofig use-context CONTEXT_NAME

2. Dashboard

Dashboard 是基于网页的 Kubernetes 用户界面。你可以使用 Dashboard 将容器应用部署到 Kubernetes 集群中，也可以对容器应用排错，还能管理集群资源。你可以使用 Dashboard 获取运行在集群中的应用的概览信息，也可以创建或者修改 Kubernetes 资源（如 Deployment，Job，DaemonSet 等等）。例如，你可以对 Deployment 实现弹性伸缩、发起滚动升级、重启 Pod 或者使用向导创建新的应用。

Dashboard 同时展示了 Kubernetes 集群中的资源状态信息和所有报错信息。

DOCS

2.1. Deploy

kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.7.0/aio/deploy/recommended.yaml

2.2. Usage

kubectl proxy

Visit by http://localhost:8001/api/v1/namespaces/kubernetes-dashboard/services/https:kubernetes-dashboard:/proxy/

2.3. Create Sample User

link

kubectl -n kubernetes-dashboard create token admin-user

3. Kind

DOC,

3.1. Configuring Your Kind Cluster

kind create cluster --config kind-example-config.yaml

Muiti-node clusters

kind: Cluster
apiVersion: kind.x-k8s.io/v1alpha4
nodes:
  - role: control-plane
  - role: worker
  - role: worker
  - role: worker
  - role: worker

4. Minio

Multi-Cloud Object Storage

MinIO offers high-performance, S3 compatible object storage. Native to Kubernetes, MinIO is the only object storage suite available on every public cloud, every Kubernetes distribution, the private cloud and the edge. MinIO is software-defined and is 100% open source under GNU AGPL v3. QuickStart

4.1. Install

kubectl krew update
kubectl krew install minio

z*** Init

kubectl minio init
kubectl get all --namespace minio-operator

4.2. Open the Operator Console

kubectl minio proxy

5. Helm

QuickStart

helm repo add bitnami https://charts.bitnami.com/bitnami
helm search repo bitnami
helm repo update
helm install bitnami/mysql --generate-name
helm list

6. Krew

Krew helps you discover and install kubectl plugins on your machine. QuickStart

kubectl krew update
kubectl krew search
kubectl krew install access-matrix
kubectl krew uninstall access-matrix