K8s中calico网络部署

master服务器插件部署

安装calico，官方文档

curl -O -L https://github.com/projectcalico/calicoctl/releases/download/v3.2.6/calicoctl
chmod +x calicoctl
mv calicoctl  /usr/bin/

docker pull docker.io/calico/node:v3.2.6
docker tag  docker.io/calico/node:v3.2.6  quay.io/calico/node:v3.2.6
wget -N -P /opt/cni/bin/ https://github.com/projectcalico/calico-cni/releases/download/v3.1.6/calico
wget -N -P /opt/cni/bin/ https://github.com/projectcalico/calico-cni/releases/download/v3.1.6/calico-ipam
chmod +x /opt/cni/bin/calico /opt/cni/bin/calico-ipam

node

docker pull docker.io/calico/node:v3.2.6
docker tag  docker.io/calico/node:v3.2.6  quay.io/calico/node:v3.2.6
wget -N -P /opt/cni/bin/ https://github.com/projectcalico/calico-cni/releases/download/v3.1.6/calico
wget -N -P /opt/cni/bin/ https://github.com/projectcalico/calico-cni/releases/download/v3.1.6/calico-ipam
chmod +x /opt/cni/bin/calico /opt/cni/bin/calico-ipam

# vi /etc/calico/calico.env
ETCD_ENDPOINTS=http://local-master:2379
ETCD_CA_FILE=""
ETCD_CERT_FILE=""
ETCD_KEY_FILE=""
CALICO_NODENAME=""
CALICO_NO_DEFAULT_POOLS=""
CALICO_IP=""
CALICO_IP=""
CALICO_IP6=""
CALICO_AS=""
CALICO_LIBNETWORK_ENABLED=true
CALICO_NETWORKING_BACKEND=bird

创建CNI网络配置文件，用于通知kubernetes创建一个名为calico-k8s-network的网络，并对此网络使用calico插件

启动

systemctl enable calico-node
systemctl start calico-node

参考自 https://www.imooc.com/article/275961
当出现Kubernetes Calico node ‘XXXXXXXXXXX’ already using IPv4 Address XXXXXXXXX, CrashLoopBackOff错误时，可能是calico的版本过低，在此修改为3.1.1以上版本，以上为3.2.6版本。
参考 https://stackoverflow.com/questions/52390481/kubernetes-calico-node-xxxxxxxxxxx-already-using-ipv4-address-xxxxxxxxx-crash