kubespray部署k8s
准备
releases版本：v2.15.1
需要关闭防火墙
具体命令，自行google
配置hosts
cat >>/etc/hosts<<EOF
10.10.110.xxx k8s-master
10.10.110.xxx k8s-node1
10.10.110.xxx k8s-node2
EOF
处理镜像
k8s.gcr.io/kube-proxy:v1.19.9
k8s.gcr.io/kube-controller-manager:v1.19.9
k8s.gcr.io/kube-scheduler:v1.19.9
k8s.gcr.io/kube-apiserver:v1.19.9
k8s.gcr.io/coredns:1.7.0
k8s.gcr.io/pause:3.3
k8s.gcr.io/dns/k8s-dns-node-cache:1.17.1
k8s.gcr.io/cpa/cluster-proportional-autoscaler-amd64:1.8.3
k8s.gcr.io/kube-scheduler:v1.19.9
下载，打tag
docker pull liz2019/kube-proxy:v1.19.9
docker pull liz2019/kube-controller-manager:v1.19.9
docker pull liz2019/kube-scheduler:v1.19.9
docker pull liz2019/kube-apiserver:v1.19.9
docker pull liz2019/coredns:1.7.0
docker pull liz2019/pause:3.3
docker pull liz2019/k8s-dns-node-cache:1.17.1
docker pull liz2019/cluster-proportional-autoscaler-amd64:1.8.3
docker pull liz2019/kube-scheduler:v1.19.9
docker tag liz2019/kube-proxy:v1.19.9 k8s.gcr.io/kube-proxy:v1.19.9
docker tag liz2019/kube-controller-manager:v1.19.9 k8s.gcr.io/kube-controller-manager:v1.19.9
docker tag liz2019/kube-scheduler:v1.19.9 k8s.gcr.io/kube-scheduler:v1.19.9
docker tag liz2019/kube-apiserver:v1.19.9 k8s.gcr.io/kube-apiserver:v1.19.9
docker tag liz2019/coredns:1.7.0 k8s.gcr.io/coredns:1.7.0
docker tag liz2019/pause:3.3 k8s.gcr.io/pause:3.3
docker tag liz2019/k8s-dns-node-cache:1.17.1 k8s.gcr.io/dns/k8s-dns-node-cache:1.17.1
docker tag liz2019/cluster-proportional-autoscaler-amd64:1.8.3 k8s.gcr.io/cpa/cluster-proportional-autoscaler-amd64:1.8.3
docker tag liz2019/kube-scheduler:v1.19.9 k8s.gcr.io/kube-scheduler:v1.19.9
镜像打包
打包导入到tar包中
$ docker save -o ./images.tar webapp:1.0 nginx:1.12 mysql:5.7
导出镜像
$ docker load -i ./images.tar
配置文件
配置文件
[all]
k8s-master ansible_host=10.10.110.xxx ip=10.10.110.xxx ansible_ssh_port=666
k8s-node1 ansible_host=10.10.110.xxx ip=10.10.110.xxx ansible_ssh_port=666
k8s-node2 ansible_host=10.10.11o.xxx ip=10.10.110.xxx ansible_ssh_port=666
[kube-master]
k8s-master
[etcd]
k8s-master
k8s-node1
k8s-node2
[kube-node]
k8s-node1
k8s-node2
[calico-rr]
[k8s-cluster:children]
kube-master
kube-node
calico-rr
运行
通过对应的镜像
$ docker pull quay.io/kubespray/kubespray:v2.15.1
$ docker run --rm -it --mount type=bind,source="$(pwd)"/inventory/sample,dst=/inventory \
--mount type=bind,source="${HOME}"/.ssh/id_rsa,dst=/root/.ssh/id_rsa \
quay.io/kubespray/kubespray:v2.15.1 bash
$ ansible-playbook -i /inventory/inventory.ini --private-key /root/.ssh/id_rsa cluster.yml
运行代码
$ ansible-playbook -i /inventory/inventory.ini --private-key /root/.ssh/id_rsa cluster.yml
运行出错，删除
$ ansible-playbook -i /inventory/inventory.ini --private-key /root/.ssh/id_rsa reset.yml
查看结果
运行的结果
PLAY RECAP *************************************************************************************************************************************************************************************************
xxxxxxxxxxxx.zs : ok=391 changed=49 unreachable=0 failed=0 skipped=639 rescued=0 ignored=1
xxxxxxxxxxxx.zs : ok=391 changed=49 unreachable=0 failed=0 skipped=638 rescued=0 ignored=1
xxxxxxxxxxxx.zs : ok=525 changed=75 unreachable=0 failed=0 skipped=1079 rescued=0 ignored=2
localhost : ok=1 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
查看
➜ ~ kubectl get nodes
NAME STATUS ROLES AGE VERSION
xxxxxxxxxxxx.zs Ready <none> 6m24s v1.19.9
xxxxxxxxxxxx.zs Ready <none> 6m25s v1.19.9
xxxxxxxxxxxx.zs Ready master 8m10s v1.19.9
出现的问题
墙
一些镜像在跑的时候国内的网络拉不上来，需要手动处理，可参考上面的处理办法，对于一些版本的镜像，在docker-hub中搜索，就能解决。
错误的配置
inventory.ini文件没有配置hostname就开始搞了，结果kubeadmin init报错
ReadString: expects \" or n, but found 1, error found in #10 byte of ...|s.local\",10,\"base-se|..., bigger context
