4、 k8s集群手动部署笔记之Flannel配置

配置Flannel之前,先用etcd给Flannel分配网段

分配网段直接在master节点配置
[root@master ssl]# /opt/kubernetes/bin/etcdctl --ca-file=ca.pem --cert-file=server.pem --key-file=server-key.pem --endpoints="https://192.168.10.60:2379,https://192.168.10.61:2379,https://192.168.10.62:2379" set /coreos.com/network/config '{ "Network": "172.17.0.0/16", "Backend": {
    "Type": "vxlan"}}'

配置Flannel

下载Flannel二进制文件:
https://github.com/coreos/flannel/releases

解压文件
[root@master ~]# tar zxvf flannel-v0.9.1-linux-amd64.tar.gz

把flannel文件复制给node1和node2节点
[root@master ~]# scp flanneld mk-docker-opts.sh root@192.168.10.61:/opt/kubernetes/bin/
[root@master ~]# scp flanneld mk-docker-opts.sh root@192.168.10.62:/opt/kubernetes/bin/

直接用Flannel脚本:flannel.sh

#!/bin/bash

ETCD_ENDPOINTS=${1:-"http://127.0.0.1:2379"}

cat <<EOF >/opt/kubernetes/cfg/flanneld

FLANNEL_OPTIONS="--etcd-endpoints=${ETCD_ENDPOINTS} \
-etcd-cafile=/opt/kubernetes/ssl/ca.pem \
-etcd-certfile=/opt/kubernetes/ssl/server.pem \
-etcd-keyfile=/opt/kubernetes/ssl/server-key.pem"

EOF

cat <<EOF >/usr/lib/systemd/system/flanneld.service
[Unit]
Description=Flanneld overlay address etcd agent
After=network-online.target network.target
Before=docker.service

[Service]
Type=notify
EnvironmentFile=/opt/kubernetes/cfg/flanneld