1.安装

wget https://github.com/etcd-io/etcd/releases/download/v3.3.12/etcd-v3.3.12-linux-amd64.tar.gz

tar zxvf etcd-v3.3.12-linux-amd64.tar.gz

cd etcd-v3.3.12-linux-amd64

cp etcd etcdctl /usr/bin/

 

2.配置

vi /usr/lib/systemd/system/etcd.service

[Unit]

Description=Etcd Server

After=network.target

After=network-online.target

Wants=network-online.target

[Service]

Type=notify

WorkingDirectory=/var/lib/etcd/

EnvironmentFile=-/etc/etcd/etcd.conf

User=etcd

# set GOMAXPROCS to number of processors

ExecStart=/bin/bash -c "GOMAXPROCS=$(nproc) /usr/bin/etcd --name=\"${ETCD_NAME}\" --data-dir=\"${ETCD_DATA_DIR}\" --listen-client-urls=\"${ETCD_LISTEN_CLIENT_URLS}\""

Restart=on-failure

LimitNOFILE=65536

[Install]

WantedBy=multi-user.target

 

vi  /etc/etcd/etcd.conf

#[Member]

ETCD_DATA_DIR="/var/lib/etcd/default.etcd"

ETCD_LISTEN_PEER_URLS="http://0.0.0.0:2380"

ETCD_LISTEN_CLIENT_URLS="http://0.0.0.0:2379,http://0.0.0.0:4001"

ETCD_NAME="node1"

#[Clustering]

ETCD_INITIAL_ADVERTISE_PEER_URLS="http://192.168.56.14:2380"

ETCD_ADVERTISE_CLIENT_URLS="http://192.168.56.14:2379,http://192.168.56.14:4001"

ETCD_INITIAL_CLUSTER="master=http://192.168.56.11:2380,node1=http://192.168.56.14:2380"

ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster"

ETCD_INITIAL_CLUSTER_STATE="new"

 

3.启动服务并测试

systemctl restart etcd

systemctl status etcd

etcdctl member list   #查看状态

etcdctl  set  hello  aaa   #设置测试值

到另外一台节点 etcdctl get hello  能看到值即可

4.confd配置

vi /etc/confd/conf.d/app01.conf.toml

[template]

# 默认在/etc/confd/templates目录下

src = "app01.conf.tmpl"

# 要更新的配置文件

dest = "/usr/local/nginx/conf/vhost/app01.conf"

keys = [

"/nginx/www/"

]

# 最后执行的命令

reload_cmd ="echo test"

 

vi /etc/confd/templates/app01.conf.tmpl

upstream www.{

{getv "/nginx/www/server_name"}} {

{

{range getvs "/nginx/www/upstream/*"}}

server {

{.}};

{

{end}}

}

server {

server_name www.{

{getv "/nginx/www/server_name"}};

location / {

proxy_pass http://www.{

{getv "/nginx/www/server_name"}};

proxy_redirect off;

proxy_set_header Host $host;

proxy_set_header X-Real-IP $remote_addr;

proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

}

}

5.在etcd上设置key

etcdctl -C http://192.168.56.11:2379 set /nginx/www/server_name   123.com

etcdctl -C http://192.168.56.11:2379 set /nginx/www/upstream/server01 “192.168.1.10:80”

etcdctl -C http://192.168.56.11:2379 set /nginx/www/upstream/server02 “192.168.1.11:80”

 

6.启动confd

confd -watch -backend etcd -node http://192.168.56.11:2379