Installing Kubernetes

 curl -LO https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/darwin/amd64/kubectl

 chmod +x ./kubectl 

sudo mv ./kubectl /usr/local/bin/kubectl

kubectl cluster-info

kubectl completion -h

brew install bash-completion

curl -Lo minikube https://storage.googleapis.com/minikube/releases/v0.19.0/minikube-darwin-amd64 && chmod +x minikube && sudo mv minikube /usr/local/bin/

minikube start --vm-driver=vmwarefusion

kubectl run hello-minikube --image=gcr.io/google_containers/echoserver:1.4 --port=8080

kubectl expose deployment hello-minikube --type=NodePort

kubectl get pod

curl $(minikube service hello-minikube --url)

minikube stop

Uninstall docker-se (we installed earlier)

Follow https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux_atomic_host/7/html-single/getting_started_with_kubernetes/

subscription-manager repos --enable=rhel-7-server-optional-rpms
sudo yum remove docker-ce
sudo yum remove docker-ce-selinux
yum install docker kubernetes-client kubernetes-node etcd
docker ps
systemctl disable firewalld
systemctl stop firewalld
yum install docker-distribution
systemctl start docker-distribution
systemctl enable docker-distribution
systemctl is-active docker-distribution
docker images
systemctl start docker
docker ps
docker images
docker pull registry.access.redhat.com/rhel7/kubernetes-apiserver
docker pull registry.access.redhat.com/rhel7/kubernetes-controller-mgr
docker pull registry.access.redhat.com/rhel7/kubernetes-scheduler
mkdir /etc/kubernetes/manifests
vi /etc/kubernetes/manifests/apiserver-pod.json
vi /etc/kubernetes/manifests/controller-mgr-pod.json
vi /etc/kubernetes/manifests/scheduler-pod.json
vi /etc/kubernetes/kubelet
vi kubestart.sh
chmod 777 kubestart.sh

[root@obrien-mbp opt]# ./kubestart.sh
Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service.
active
Created symlink from /etc/systemd/system/multi-user.target.wants/etcd.service to /usr/lib/systemd/system/etcd.service.
active
Created symlink from /etc/systemd/system/multi-user.target.wants/kube-proxy.service to /usr/lib/systemd/system/kube-proxy.service.
active
Created symlink from /etc/systemd/system/multi-user.target.wants/kubelet.service to /usr/lib/systemd/system/kubelet.service.
active
? docker.service - Docker Application Container Engine
Loaded: loaded (/usr/lib/systemd/system/docker.service; enabled; vendor preset: disabled)
Drop-In: /usr/lib/systemd/system/docker.service.d
??flannel.conf
Active: active (running) since Tue 2017-06-27 14:26:09 PDT; 196ms ago
Docs: http://docs.docker.com
Main PID: 90732 (dockerd-current)
Memory: 14.6M
CGroup: /system.slice/docker.service
??90732 /usr/bin/dockerd-current --add-runtime docker-runc=/usr/libexec/docker/docker-runc-current --default-runtime=docker-runc --authorization-plugin=rhel-p...
??90740 /usr/bin/docker-containerd-current -l unix:///var/run/docker/libcontainerd/docker-containerd.sock --shim docker-containerd-shim --metrics-interval=0 -...

Jun 27 14:26:08 obrien-mbp.onap.org dockerd-current[90732]: time="2017-06-27T14:26:08.923309259-07:00" level=info msg="[graphdriver] using prior storage driver \"overlay\""
Jun 27 14:26:08 obrien-mbp.onap.org dockerd-current[90732]: time="2017-06-27T14:26:08.932489041-07:00" level=info msg="Graph migration to content-addressability... seconds"
Jun 27 14:26:08 obrien-mbp.onap.org dockerd-current[90732]: time="2017-06-27T14:26:08.933459958-07:00" level=info msg="Loading containers: start."
Jun 27 14:26:08 obrien-mbp.onap.org dockerd-current[90732]: .time="2017-06-27T14:26:08.944192986-07:00" level=info msg="Firewalld running: false"
Jun 27 14:26:09 obrien-mbp.onap.org dockerd-current[90732]: time="2017-06-27T14:26:09.063447350-07:00" level=info msg="Default bridge (docker0) is assigned with... address"
Jun 27 14:26:09 obrien-mbp.onap.org dockerd-current[90732]: time="2017-06-27T14:26:09.106280840-07:00" level=info msg="Loading containers: done."
Jun 27 14:26:09 obrien-mbp.onap.org dockerd-current[90732]: time="2017-06-27T14:26:09.106331336-07:00" level=info msg="Daemon has completed initialization"
Jun 27 14:26:09 obrien-mbp.onap.org dockerd-current[90732]: time="2017-06-27T14:26:09.106343838-07:00" level=info msg="Docker daemon" commit="1398f24/1.12.6" gr...on=1.12.6
Jun 27 14:26:09 obrien-mbp.onap.org dockerd-current[90732]: time="2017-06-27T14:26:09.116502253-07:00" level=info msg="API listen on /var/run/docker.sock"
Jun 27 14:26:09 obrien-mbp.onap.org systemd[1]: Started Docker Application Container Engine.
Hint: Some lines were ellipsized, use -l to show in full.
? kube-proxy.service - Kubernetes Kube-Proxy Server
Loaded: loaded (/usr/lib/systemd/system/kube-proxy.service; enabled; vendor preset: disabled)
Active: active (running) since Tue 2017-06-27 14:26:09 PDT; 165ms ago
Docs: https://github.com/GoogleCloudPlatform/kubernetes
Main PID: 90864 (kube-proxy)
Memory: 14.5M
CGroup: /system.slice/kube-proxy.service
??90864 /usr/bin/kube-proxy --logtostderr=true --v=0 --master=http://127.0.0.1:8080

Jun 27 14:26:09 obrien-mbp.onap.org systemd[1]: Started Kubernetes Kube-Proxy Server.
Jun 27 14:26:09 obrien-mbp.onap.org systemd[1]: Starting Kubernetes Kube-Proxy Server...
? kubelet.service - Kubernetes Kubelet Server
Loaded: loaded (/usr/lib/systemd/system/kubelet.service; enabled; vendor preset: disabled)
Active: active (running) since Tue 2017-06-27 14:26:09 PDT; 151ms ago
Docs: https://github.com/GoogleCloudPlatform/kubernetes
Main PID: 90917 (kubelet)
Memory: 13.9M
CGroup: /system.slice/kubelet.service
??90917 /usr/bin/kubelet --logtostderr=true --v=0 --api-servers=http://127.0.0.1:8080 --address=127.0.0.1 --hostname-override=127.0.0.1 --allow-privileged=fal...

Jun 27 14:26:09 obrien-mbp.onap.org systemd[1]: Started Kubernetes Kubelet Server.
Jun 27 14:26:09 obrien-mbp.onap.org systemd[1]: Starting Kubernetes Kubelet Server...
Jun 27 14:26:09 obrien-mbp.onap.org kubelet[90917]: Flag --api-servers has been deprecated, Use --kubeconfig instead. Will be removed in a future version.
Jun 27 14:26:09 obrien-mbp.onap.org kubelet[90917]: Flag --config has been deprecated, Use --pod-manifest-path instead. Will be removed in a future version.
Jun 27 14:26:09 obrien-mbp.onap.org kubelet[90917]: I0627 14:26:09.697783 90917 feature_gate.go:181] feature gates: map[]
Jun 27 14:26:09 obrien-mbp.onap.org kubelet[90917]: W0627 14:26:09.698143 90917 server.go:605] Could not load kubeconfig file /var/lib/kubelet/kubeconfig: sta... instead.
Jun 27 14:26:09 obrien-mbp.onap.org kubelet[90917]: I0627 14:26:09.698654 90917 docker.go:356] Connecting to docker on unix:///var/run/docker.sock
Jun 27 14:26:09 obrien-mbp.onap.org kubelet[90917]: I0627 14:26:09.698667 90917 docker.go:376] Start docker client with request timeout=2m0s
Jun 27 14:26:09 obrien-mbp.onap.org kubelet[90917]: E0627 14:26:09.702077 90917 cni.go:163] error updating cni config: No networks found in /etc/cni/net.d
Jun 27 14:26:09 obrien-mbp.onap.org kubelet[90917]: I0627 14:26:09.711775 90917 manager.go:143] cAdvisor running in container: "/system.slice/kubelet.service"
Hint: Some lines were ellipsized, use -l to show in full.
[root@obrien-mbp opt]# ss -tulnp | grep -E "(kube)|(etcd)"
tcp LISTEN 0 128 127.0.0.1:2379 *:* users:(("etcd",pid=90567,fd=6))
tcp LISTEN 0 128 127.0.0.1:2380 *:* users:(("etcd",pid=90567,fd=5))
tcp LISTEN 0 128 127.0.0.1:10255 *:* users:(("kubelet",pid=90917,fd=9))
tcp LISTEN 0 128 127.0.0.1:10248 *:* users:(("kubelet",pid=90917,fd=8))
tcp LISTEN 0 128 127.0.0.1:10249 *:* users:(("kube-proxy",pid=90864,fd=9))
tcp LISTEN 0 128 127.0.0.1:10250 *:* users:(("kubelet",pid=90917,fd=14))
tcp LISTEN 0 128 :::10251 :::* users:(("kube-scheduler",pid=91175,fd=8))
tcp LISTEN 0 128 :::6443 :::* users:(("kube-apiserver",pid=91126,fd=42))
tcp LISTEN 0 128 :::8080 :::* users:(("kube-apiserver",pid=91126,fd=43))
tcp LISTEN 0 128 :::4194 :::* users:(("kubelet",pid=90917,fd=13))
[root@obrien-mbp opt]# curl -s -L http://localhost:2379/version
{"etcdserver":"3.1.7","etcdcluster":"3.1.0"}[root@obrien-mbp opt]#