我正在尝试在gcloud标准应用引擎上设置快速服务。我想使用内存缓存进行会话缓存。
有人可以帮助我,我如何将服务连接到内存缓存?
我的代码是:
var session = require('express-session')
var MemcachedStore = require('connect-memcached')(session);
app.use(session({
secret: 'appengineFTW',
key: 'a_key',
resave: true,
store: new MemcachedStore({
hosts: [process.env.MEMCACHE_URL || '127.0.0.1:11211']
}),
saveUninitialized: false
}));
产品中的MEMCACHE_URL设置为memcache:11211
Err:连接ECONNREFUSED 127.0.0.1:11211
1。创建服务器文件夹。
mkdir server
cd server
2。将server.js
文件复制到文件夹中
const express = require('express');
const session = require('express-session');
const cookieParser = require('cookie-parser');
const MemcachedStore = require('connect-memjs')(session);
const publicIp = require('public-ip');
const crypto = require('crypto');
// Environment variables are defined in app.yaml.
let MEMCACHE_URL = process.env.MEMCACHE_URL || '127.0.0.1:11211';
if (process.env.USE_GAE_MEMCACHE) {
MEMCACHE_URL = `${process.env.GAE_MEMCACHE_HOST}:${process.env.GAE_MEMCACHE_PORT}`;
}
const app = express();
app.enable('trust proxy');
app.use(cookieParser());
app.use(session({
secret: 'your-secret-here',
key: 'view:count',
proxy: 'true',
store: new MemcachedStore({
servers: [MEMCACHE_URL]
})
}));
app.get('/', (req, res, next) => {
// Discover requester's public IP address
publicIp.v4().then((ip) => {
const userIp = crypto.createHash('sha256').update(ip).digest('hex').substr(0, 7);
// This shows the hashed IP for each
res.write(`<div>${userIp}</div>`);
if (req.session.views) {
req.session.views += 1;
} else {
req.session.views = 1;
}
res.end(`Viewed <strong>${req.session.views}</strong> times.`);
}).catch(next);
});
const PORT = process.env.PORT || 8080;
app.listen(PORT, () => {
console.log('App listening on port %s', PORT);
console.log('Press Ctrl+C to quit.');
});
module.exports = app;
3。使用NPM或纱线创建package.json
文件:
npm init
4。使用NPM或Yarn安装依赖项:
npm install --save connect-memjs cookie-parser express express-session public-ip
5。在与App Engine应用程序相同的区域中创建memcached instance(gcloud app describe
查找该区域)。记下您的节点之一的IP地址。
6。创建app.yaml
文件
runtime: nodejs
env: flex
env_variables:
MEMCACHE_URL: 10.10.10.10:11211 #your memcached instance ip
7。将应用程序部署到App Engine Flex
gcloud应用部署gcloud应用浏览
http://YOUR_PROJECT_ID.appspot.com
以查看已部署的应用程序。