kargo部署kubernetes1.8

现在kargo在GitHub上已经改名为kubesprary，我采用了现成的开源部署方案。

(1)集群环境

kargo 10.142.114.30
master 10.142.114.11
node 10.142.114.12

(2)安装部署节点，包括ansible等

$ yum install -y epel-release
$ yum install -y python-pip python-netaddr ansible git
$ pip install --upgrade pip
$ pip install --upgrade Jinja2

下载Kubespray

$ git clone [https://github.com/iamwlb/kubespray-kubernetes1.8.git](https://github.com/iamwlb/kubespray-kubernetes1.8.git)

配置主机文件

$ cd kubespray
$ cp inventory/inventory.example inventory/inventory.cfg
$ vim inventory/inventory.cfg

内容如下：

[all]
master ansible_host=10.142.114.11 ansible_user=root ip=10.142.114.11
node   ansible_host=10.142.114.12 ansible_user=root ip=10.142.114.12

[kube-master]
master

[kube-node]
node

[etcd]
master

[k8s-cluster:children]
kube-node
kube-master

(3)配置部署节点免密码登陆集群节点

$ ssh-keygen
$ ssh-copy-id [email protected]
$ ssh-copy-id [email protected]

(4)关闭所有节点防火墙

$ ansible -i inventory/inventory.cfg all -a "systemctl stop firewalld"
$ ansible -i inventory/inventory.cfg all -a "systemctl disable firewalld"

(5)关闭所有节点SElinux

(6)配置ip转发

$ ansible -i inventory/inventory.cfg all -a "sysctl -w net.ipv4.ip_forward=1"
# 查看ip转发设置
$ ansible -i inventory/inventory.cfg all -a "sysctl net.ipv4.ip_forward"

(7)禁用虚拟内存

$ ansible -i inventory/inventory.cfg all -a "swapoff -a"
$ ansible -i inventory/inventory.cfg all -a "sed -i '/ swap / s/^\(.*\)$/#\1/g' /etc/fstab"
$ ansible -i inventory/inventory.cfg all -a "free -m"

(8)部署Kubernetes

$ ansible-playbook -i inventory/inventory.cfg cluster.yml -b -v  --private-key=~/.ssh/id_rsa