macos setup kubectl and minikube

steps

1. install kuberctl

   1. use brew

       $ brew install kubectl
       ...
       ==> Summary
       🍺  /usr/local/Cellar/kubernetes-cli/1.10.2: 178 files, 52.8MB
      

2. install minikube

   1. use curl

       $ curl -Lo minikube https://storage.googleapis.com/minikube/releases/v0.27.0/minikube-darwin-amd64 && chmod +x minikube && sudo mv minikube /usr/local/bin/
      

   2. version

       $ minikube version
       minikube version: v0.27.0
      

   3. start a kubernets with minikube

       $ minikube start
       Starting local Kubernetes v1.10.0 cluster...
       Starting VM...
       Getting VM IP address...
       Moving files into cluster...
       Setting up certs...
       Connecting to cluster...
       Setting up kubeconfig...
       Starting cluster components...
       Kubectl is now configured to use the cluster.
       Loading cached images from config file.
      

   4. check status

       $ minikube status
       minikube: Running
       cluster: Running
       kubectl: Correctly Configured: pointing to minikube-vm at 192.168.99.100
      

   5. reset and restart cluster

       $ minikube delete
       $ minikube start
      

   6. dashboard

       $ minikube dashboard
       Opening kubernetes dashboard in default browser...
       http://192.168.99.100:30000/
      

3. kubectl

   1. version

       $ kubectl version
       Client Version: version.Info{Major:"1", Minor:"10", GitVersion:"v1.10.2", GitCommit:"81753b10df112992bf51bbc2c2f85208aad78335", GitTreeState:"clean", BuildDate:"2018-05-12T04:12:12Z", GoVersion:"go1.9.6", Compiler:"gc", Platform:"darwin/amd64"}
       Server Version: version.Info{Major:"1", Minor:"10", GitVersion:"v1.10.0", GitCommit:"fc32d2f3698e36b93322a3465f63a14e9f0eaead", GitTreeState:"clean", BuildDate:"2018-03-26T16:44:10Z", GoVersion:"go1.9.3", Compiler:"gc", Platform:"linux/amd64"}
      

   2. cluster-info

       $ kubectl cluster-info
       Kubernetes master is running at https://192.168.99.100:8443
       KubeDNS is running at https://192.168.99.100:8443/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy
      
       To further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.
      

   3. componentstatuses

       $ kubectl get componentstatuses
       NAME                 STATUS    MESSAGE              ERROR
       scheduler            Healthy   ok
       controller-manager   Healthy   ok
       etcd-0               Healthy   {"health": "true"}
      

   4. state of all pods

       $ kubectl get pods --all-namespaces
       NAMESPACE     NAME                                    READY     STATUS    RESTARTS   AGE
       kube-system   etcd-minikube                           1/1       Running   0          22m
       kube-system   kube-addon-manager-minikube             1/1       Running   0          21m
       kube-system   kube-apiserver-minikube                 1/1       Running   0          21m
       kube-system   kube-controller-manager-minikube        1/1       Running   0          21m
       kube-system   kube-dns-86f4d74b45-gtn4r               3/3       Running   1          21m
       kube-system   kube-proxy-f6s6b                        1/1       Running   0          21m
       kube-system   kube-scheduler-minikube                 1/1       Running   0          21m
       kube-system   kubernetes-dashboard-5498ccf677-cgjvq   1/1       Running   0          21m
       kube-system   storage-provisioner                     1/1       Running   0          21m
      

   5. state of all services

       $ kubectl get services --all-namespaces
       NAMESPACE     NAME                   TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)         AGE
       default       kubernetes             ClusterIP   10.96.0.1       <none>        443/TCP         24m
       kube-system   kube-dns               ClusterIP   10.96.0.10      <none>        53/UDP,53/TCP   24m
       kube-system   kubernetes-dashboard   NodePort    10.97.164.230   <none>        80:30000/TCP    23m
      

4. docker

   1. version

       $ docker version
       Client:
        Version:      18.03.1-ce
        API version:  1.37
        Go version:   go1.9.5
        Git commit:   9ee9f40
        Built:        Thu Apr 26 07:13:02 2018
        OS/Arch:      darwin/amd64
        Experimental: false
        Orchestrator: swarm
      
       Server:
        Engine:
         Version:      18.03.1-ce
         API version:  1.37 (minimum version 1.12)