[英]Use RedisDB with Express-Gateway. How to read DB credentials from .ENV?
I am using a Redis DB to use an Express-Gateway on Heroku.我正在使用 Redis DB 在 Heroku 上使用 Express-Gateway。 I would like to know how to set Redis credentials as a unique URL-param, instead of using separated vars.
我想知道如何将 Redis 凭据设置为唯一的 URL 参数,而不是使用分隔的变量。
Right now, Express Gateway reads credentials from the file system.config.yml
, where credentials structure is现在,Express Gateway 从文件
system.config.yml
读取凭据,其中凭据结构是
# Core
db:
redis:
host: [host]
port: [port]
namespace: [namespace]
password: [password]
Unfortunately, Redis on Heroku automatically sets credentials as a .ENV var, in the form of URL:不幸的是,Heroku 上的 Redis 会以 URL 的形式自动将凭据设置为 .ENV 变量:
REDIS_URL = "redis://h:[psw]@[host]:[port]"
How can I make Express-Gateway reads credentials from .ENV instead of system.config.yml
?如何让 Express-Gateway 从 .ENV 而不是
system.config.yml
读取凭据? Or, how can I make system.config.yml
reads from .ENV the whole URL?或者,如何让
system.config.yml
从 .ENV 读取整个 URL?
Even worst, credentials are not permanent, and are changed periodically without alert.更糟糕的是,凭据不是永久的,并且会在没有警报的情况下定期更改。 So, how can I make Express-Gateway connect to Redis on Heroku?
那么,如何让 Express-Gateway 连接到 Heroku 上的 Redis?
Thank you谢谢
Express Gateway 的配置文件支持环境变量——检查一下,你应该很高兴!
I solved in this way: splitting the Vars before starting the gateway, and set the Env vars.我是这样解决的:在启动网关之前拆分Vars,并设置Env vars。
/* ==============
server.js
================*/
const gateway = require('express-gateway');
const redis = require('redis')
const session = require('express-session')
let RedisStore = require('connect-redis')(session)
require('dotenv').config();
var redis_Url = process.env.REDIS_URL; // auto-stetted by the Redis Heroku Plugin
// example: redis://h:p81efd4c7e0ad310d7da303b7bd348d3d0bd9fcebc7aae61c9ba7c94a95a1290d@ec2-54-247-152-80.eu-west-1.compute.amazonaws.com:12799
var groups = /^redis:\/\/(.+?)\:(.+?)\@(.+?)\:(.+)$/gi.exec(redis_Url);
process.env.NM = groups[1];
process.env.PASW = groups[2];
process.env.HOST = groups[3];
process.env.R_PORT = groups[4]; // !!! don't use PORT as Env var name!!!
// Run the gateway
gateway()
.load(path.join(__dirname, 'config'))
.run();
and和
#==============
# system.config.yml
#================
# Core
db:
redis:
host: ${HOST}
port: ${R_PORT}
namespace: EG
password: ${PASW}
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