Google Opensource, Kubernetes . , Rkt.

Kubernetes Minions. , .
, Kubernetes, . Minikube - , K ubernetes .
Kubernetes Linux CentOS 7. .
3- :

Kubernetes
Kubernetes . docker, .
.
1: , SELinux
, DNS-, /etc/hosts
.
# hostnamectl set-hostname master-node # cat <<EOF>> /etc/hosts 10.128.0.27 master-node 10.128.0.29 node-1 worker-node-1 10.128.0.30 node-2 worker-node-2 EOF
1 2, ping
.
# ping 10.128.0.29 # ping 10.128.0.30
SElinux .
# setenforce 0 # sed -i --follow-symlinks 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/sysconfig/selinux # reboot
. , firewall-cmd
.
# firewall-cmd --permanent --add-port=6443/tcp # firewall-cmd --permanent --add-port=2379-2380/tcp # firewall-cmd --permanent --add-port=10250/tcp # firewall-cmd --permanent --add-port=10251/tcp # firewall-cmd --permanent --add-port=10252/tcp # firewall-cmd --permanent --add-port=10255/tcp # firewall-cmd reload # modprobe br_netfilter # echo '1' > /proc/sys/net/bridge/bridge-nf-call-iptables
2: Kubernetes Repo
Kubernetes, CentOS 7.
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
3: Kubeadm Docker
, repo , kubeadm docker .
# yum install kubeadm docker -y
.
# systemctl enable kubelet # systemctl start kubelet # systemctl enable docker # systemctl start docker
4: Kubernetes Master
Kubernetes Master, swap, kubeadm init
.
# swapoff a
Kubernetes master - , kubeadm init
, .
# kubeadm init

Kubernetes master
, , .
kubeadm join 10.128.0.27:6443 --token nu06lu.xrsux0ss0ixtnms5 \ --discovery-token-ca-cert-hash sha256:f996ea3564e6a07fdea2997a1cf8caeddafd6d4360d606dbc82314688425cd41
: (args), , . ,\
,--token
, .
kubeadm join 10.128.0.27:6443 --token nu06lu.xrsux0ss0ixtnms5 --discovery-token-ca-cert-hash sha256:f996ea3564e6a07fdea2997a1cf8caeddafd6d4360d606dbc82314688425cd41
Kubernetes . root, . sudo, , sudo.
root, :
# mkdir -p $HOME/.kube # cp -i /etc/kubernetes/admin.conf $HOME/.kube/config # chown $(id -u):$(id -g) $HOME/.kube/config
sudo, :
$ mkdir -p $HOME/.kube $ sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config $ sudo chown $(id -u):$(id -g) $HOME/.kube/config
, kubectl
.
# kubectl get nodes

, NotReady. , .
Pod Network - , . .
5:
. , Weavenet, , IP- , . .
.
# export kubever=$(kubectl version | base64 | tr -d '\n') # kubectl apply -f "https://cloud.weave.works/k8s/net?k8s-version=$kubever"

, , "Ready"
# kubectl get nodes

.
Kubernetes
. Kubernetes.
1: , SELinux
-1 -2 , DNS-, /etc/hosts
.
# hostnamectl set-hostname 'node-1' # cat <<EOF>> /etc/hosts 10.128.0.27 master-node 10.128.0.29 node-1 worker-node-1 10.128.0.30 node-2 worker-node-2 EOF
ping master-node .
SElinux .
# setenforce 0 # sed -i --follow-symlinks 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/sysconfig/selinux
. , firewall-cmd
.
# firewall-cmd --permanent --add-port=6783/tcp # firewall-cmd --permanent --add-port=10250/tcp # firewall-cmd --permanent --add-port=10255/tcp # firewall-cmd --permanent --add-port=30000-32767/tcp # firewall-cmd --reload # echo '1' > /proc/sys/net/bridge/bridge-nf-call-iptables
2: Kubernetes Repo
Kubernetes , CentOS 7.
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
3: Kubeadm Docker
, repo , kubeadm docker .
# yum install kubeadm docker -y
.
# systemctl enable docker # systemctl start docker # systemctl enable kubelet # systemctl start kubelet
4:
, kubeadm init
. 1 2, .
# kubeadm join 10.128.0.27:6443 --token nu06lu.xrsux0ss0ixtnms5 --discovery-token-ca-cert-hash sha256:f996ea3564e6a07fdea2997a1cf8caeddafd6d4360d606dbc82314688425cd41

, , 1 2 .
# kubectl get nodes

, 1 2 .
Kubernetes Centos 7 . .