【Linux】confd和etcd

confd

https://cloud.tencent.com/developer/article/1444852

测试配置 /etc/confd/conf.d/test_user.toml

[template]
src = "test_user.tmpl"
dest = "/tmp/myapp.conf"
owner = "root"
mode = "0644"
keys = [
  "/company/users/test1",
  "/company/users/test2",
]
check_cmd = "echo {{.src}} >> /tmp/test_confd.log"
reload_cmd = "echo `date` >> /tmp/test_confd.log && cat /tmp/myapp.conf >> /tmp/test_confd.log"

自动生成配置的模板 /etc/confd/templates/test_user.tmpl

server{1}
{{range gets "/company/users/test1"}}
    key: {{.Key}}
    value: {{.Value}}
    name {{ $data := json .Value }} {{ $data.age }}
{{end}}

# session 1
bash> etcd

# session 2
bash> etcdctl --endpoints=127.0.0.1:2379 put /company/users/test1 '{"age": "1"}'

# session 3
bash> rm -rf /tmp/myapp.conf && confd -onetime -backend etcdv3 -node http://127.0.0.1:2379

使用守护进程方式

confd -watch -backend etcdv3 -node http://127.0.0.1:2379

etcd

https://github.com/etcd-io/etcd/releases

echo "ETCD_HOME=/usr/local/etcd/bin" >> /etc/profile
echo "PATH=$ETCD_HOME:$PATH" >> /etc/profile
source /etc/profile