ref

k8s-cluster.txt

@@ -0,0 +1,76 @@
+
+system: 
+centos7
+
+
+
+docker:
+wget https://download.docker.com/linux/centos/7/x86_64/stable/Packages/docker-ce-17.03.2.ce-1.el7.centos.x86_64.rpm
+wget https://download.docker.com/linux/centos/7/x86_64/stable/Packages/docker-ce-selinux-17.03.2.ce-1.el7.centos.noarch.rpm
+yum install docker-ce-selinux-17.03.2.ce-1.el7.centos.noarch.rpm
+yum install docker-ce-17.03.2.ce-1.el7.centos.x86_64.rpm
+
+-----------Docker version 17.03.2-ce-------------
+
+cat << EOF > /etc/docker/daemon.json
+{
+  "exec-opts": ["native.cgroupdriver=systemd"],
+  "registry-mirrors": ["http://c32b78eb.m.daocloud.io"],
+  "insecure-registries":["10.141.212.25:5555"]
+}
+EOF
+service docker restart
+
+
+
+kubeadm setup: (master)
+cat <<EOF > /etc/yum.repos.d/kubernetes.repo
+[kubernetes]
+name=Kubernetes
+baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64
+enabled=1
+gpgcheck=1
+repo_gpgcheck=1
+gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
+EOF
+setenforce 0
+yum install -y kubelet kubeadm kubectl
+systemctl enable kubelet && systemctl start kubelet
+
+cat <<EOF >  /etc/sysctl.d/k8s.conf
+net.bridge.bridge-nf-call-ip6tables = 1
+net.bridge.bridge-nf-call-iptables = 1
+EOF
+sysctl --system
+
+### export KUBECONFIG=/etc/kubernetes/admin.conf
+### sysctl net.bridge.bridge-nf-call-iptables=1
+
+sudo swapoff -a
+cat <<EOF >  /root/.bash_profile
+export KUBECONFIG=/etc/kubernetes/admin.conf
+EOF
+source /root/.bash_profile
+
+-----------------------------------------------
+
+kubeadm init --pod-network-cidr=10.244.0.0/16
+kubeadm reset
+
+kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/v0.9.1/Documentation/kube-flannel.yml
+
+kubectl get pods --all-namespaces
+kubectl get nodes
+
+------------- leave --------------
+
+kubectl drain centos-minion-2 --delete-local-data --force --ignore-daemonsets
+kubectl delete node centos-minion-2
+
+
+
+join: (slave)
+kubeadm join --token 58c15f.e98c48fa25e26132 10.141.211.171:6443 --discovery-token-ca-cert-hash sha256:46448ae9369e3a803ef7078bc4b9de9f0855d84f309f9cf25ff76fdef8538ce2
+kubeadm reset
+
+