pomelo原生自带的pomelo start等命令可以很好的在开发过程中使用，但是到产品部署阶段就显得有些力不从心。在pomelo集群部署方面，推荐使用pm2来运维部署pomelo服务器组。用过才知道真的比pomelo start等命令爽快很多，墙裂推荐。
本文主要分享一个将pomelo config解析为pm2 config的脚本。
parse_pomelo_to_pm2_config.js
/**
* 将pomelo默认配置servers.json转为pm2配置
* Created by kikoroc on 16/4/26.
*/
varenv ='production';
varservers =require('../servers.json')[env];
varmaster =require('../master.json')[env];
varmasterha =require('../masterha.json').masterha;
varfs =require('fs');
/**
* 一台服务器可能有多个网络类型的ip地址（电信移动联通局域网等），这里主要配置将服务器多个ip解析为同一个ip
* 这样就可以将同服务器的pomelo config配置到一个pm2 config json文件中。
*/
var_SERVER_IPMAP = {
"your_server_telecom_ip":"your_server_telecom_ip",
"mobile_ip":"your_server_telecom_ip",
"unicom_ip":"your_server_telecom_ip",
"local_ip":"your_server_telecom_ip"
};
var_RESULT = {};
for(varserverTypeinservers){
servers[serverType].forEach(function(conf){
varprocess = {
"name":"",
"cwd":"/data/xxx/game-server/",
"script":"app.js",
"args":null,
"exec_mode":"fork",
"watch":false,
"env": {
"NODE_ENV":"production"
},
"merge_logs":true,
"error_file":"",
"out_file":"",
"autorestart":true,
"max_memory_restart":"1G"
};
process.name = conf.id;
process.error_file ="/data/xxx/game-server/logs/"+conf.id+"_error.log";
process.out_file ="/data/xxx/game-server/logs/"+conf.id+"_normal.log";
varargs = [];
args.push("env=production");
args.push("serverType="+serverType);
for(varkinconf){
args.push(k+"="+conf[k]);
}
process.args = args;
vardestHost = _SERVER_IPMAP[conf.host];
if(_RESULT.hasOwnProperty(destHost)){
_RESULT[destHost].apps.push(process);
}else{
_RESULT[destHost] = {};
_RESULT[destHost]['apps'] = [];
_RESULT[destHost].apps.push(process);
}
});
}
masterha.forEach(function(conf){
fs.writeFileSync('./out/masterha@'+_SERVER_IPMAP[conf.host]+'.json',JSON.stringify({
"apps": [{
"name": conf.id,
"cwd":"/data/xxx/game-server/",
"script":"app.js",
"args": [
"serverType=master",
"id="+conf.id,
"host="+conf.host,
"port="+conf.port,
"env=production",
"mode=stand-alone",
"masterha=true"
],
"exec_mode":"fork",
"watch":false,
"env": {
"NODE_ENV":"production"
},
"merge_logs":true,
"error_file":"/data/xxx/game-server/logs/"+conf.id+"_error.log",
"out_file":"/data/xxx/game-server/logs/"+conf.id+"_normal.log",
"autorestart":true,
"max_memory_restart":"1G"
}]
},null,2), {
flag:'w'
});
});
//write master config
fs.writeFileSync('./out/master@'+_SERVER_IPMAP[master.host]+'.json',JSON.stringify({
"apps": [{
"name": master.id,
"cwd":"/data/xxx/game-server/",
"script":"app.js",
"args": [
"serverType=master",
"id="+master.id,
"host="+master.host,
"port="+master.port,
"env=production",
"mode=stand-alone"
],
"exec_mode":"fork",
"watch":false,
"env": {
"NODE_ENV":"production"
},
"merge_logs":true,
"error_file":"/data/xxx/game-server/logs/"+master.id+"_error.log",
"out_file":"/data/xxx/game-server/logs/"+master.id+"_normal.log",
"autorestart":true,
"max_memory_restart":"1G"
}]
},null,2), {
flag:'w'
});
for(varhostin_RESULT){
fs.writeFileSync('./out/'+host+'.json',JSON.stringify(_RESULT[host],null,2), {
flag:'w'
});
}
运行
node parse_pomelo_to_pm2_config.js
pm2的json config文件就会生成在./out/目录下。然后分发到对应的服务器执行pm2 start xxx.json即可。
在实际运维过程中，可能需要重启某些serverType的服务器进程，这里再分享一个根据serverType生成对应服务器进程重启的脚本。
gen_restart_shell_by_serverType.js
/**
* 生成重启业务服务进程的pm2代码
* Created by kikoroc on 16/4/27.
*/
varserverType ='chat';
varservers =require('../../servers.json')['production'][serverType];
if(servers && servers.length >0){
servers.forEach(function(svr){
console.log('ssh '+svr.host+' /usr/local/bin/pm2 restart '+svr.id);
});
}else{
console.error('no server of '+serverType);
}
运行
node gen_restart_shell_by_serverType.js > restart_chat.sh
bash restart_chat.sh
即可完成chat servers的重启。：）