回顾：

1   安装etcd

[root@linux-node1 ~]# pip install python-etcd                                                       安装etcd软件

2   修改salt-master的配置文件，加配置，并重新启动salt-master

[root@linux-node1 ~]# vim /etc/salt/master

etcd_pillar_config:

etcd.host: 10.0.0.7

etcd.port: 4001

ext_pillar:

- etcd: etcd_pillar_config root=/salt/haproxy/

3   添加节点

[root@linux-node1 ~]# curl -s http://10.0.0.7:2379/v2/keys/salt/haproxy/backend_www_oldboyedu_com/web-node4 -XPUT -d value="10.0.0.7:8080" | python -m json.tool

4   改haproxy-outside.sls文件添加jinja模版标志

[root@linux-node1 ~]# vim /srv/salt/prod/cluster/haproxy-outside.sls

- template: jinja

5   修改配置文件

[root@linux-node1 ~]# vim /srv/salt/prod/cluster/files/haproxy-outside.cfg

{% for web,web_ip in pillar.backend_www_oldboyedu_com.iteritems() -%}

server ` web ` ` web_ip ` check inter 2000 rise 30 fall 15

{% endfor %}

脚本实现自动添加机器：

[root@linux-node1 ~]# cat auto.sh

#!/bin/bash

MAIN_ADD_HOST=$1

create_host(){

echo "create host ok"

}

deploy_service(){

#salt 'linux-node2.example.com' state.sls nginx.install env=prod

ADD_HOST_PORT="8080"

}

deploy_code(){

echo "deploy code ok"

}

service_check(){

STATUS=$(curl -s --head http://"$ADD_HOST":"$ADD_HOST_PORT"/ | grep '200 OK')

if [ -n "$STATUS" ];then

echo "ok"

else

echo "not ok"

exit

fi

}

etcd_key(){

ADD_HOST=$1

curl http://10.0.0.7:2379/v2/keys/salt/haproxy/backend_www_oldboyedu_com/$ADD_HOST -XPUT -d value="10.0.0.8:${ADD_HOST_PORT}"

}

sync_state(){

salt 'linux-node1.example.com' state.sls cluster.haproxy-outside env=prod

}

main(){

create_host;

deploy_service;

deploy_code;

etcd_key $MAIN_ADD_HOST;

sync_state;

}

main $1

qq:406564728

欢迎交流