改成动态更新配置文件,如下每五秒重新生成配置文件
confd与etcd的使用
Add keys
This guide assumes you have a working etcd, or consul server up and running and the ability to add new keys.
/tmp/test-etcd/etcdctl set /myapp/database/url db.example.com /tmp/test-etcd/etcdctl set /myapp/database/user rob
Create the confdir
The confdir is where template resource configs and source templates are stored.
sudo mkdir -p /etc/confd/{conf.d,templates}
Create a template resource config
Template resources are defined in TOML config files under the confdir
.
/etc/confd/conf.d/myconfig.toml
[template] src = "myconfig.conf.tmpl" dest = "/tmp/myconfig.conf" keys = [ "/myapp/database/url", "/myapp/database/user", ]
Create the source template
Source templates are Golang text templates.
/etc/confd/templates/myconfig.conf.tmpl
[myconfig] database_url = {{getv "/myapp/database/url"}} database_user = {{getv "/myapp/database/user"}}
Process the template
confd supports two modes of operation daemon and onetime. In daemon mode confd polls a backend for changes and updates destination configuration files if necessary.
etcd
confd -onetime -backend etcd -node http://127.0.0.1:2379
来源:https://www.cnblogs.com/hualou/p/12071072.html