simple-hosting
v1.3.3
Published
Simple reverse proxy for hosting multiple apps in the same server
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simple-hosting
Simple reverse proxy for hosting multiple apps in the same server
npm i simple-hosting
Usage
Let's say you already have two apps running in a server: http://127.0.0.1:1337
and http://127.0.0.1:3000
Normally run this in a public server with DNS, and all app domains pointing to the same server IP.
const Hosting = require('simple-hosting')
const hosting = new Hosting()
// Replace with your own domains
hosting.add('a.leet.ar', { destination: 'http://127.0.0.1:1337' })
hosting.add('b.leet.ar', { destination: 'http://127.0.0.1:3000' })
hosting.add('c.leet.ar', {
destination: 'http://127.0.0.1:3000', // Frontend
location: {
'/api': 'http://127.0.0.1:1010' // Backend
}
})
await hosting.listen({ securePort: false })
// Try making requests to http://127.0.0.1:80 and setting the Host header accordingly
// Or if this is in a server then use your browser to request the actual domains
Feel free to open an issue if you have any doubt.
API
const hosting = new Hosting([options])
Creates a pair of servers that uses the Host
header to dynamically load different apps.
{
log: 0, // Enable logging (0=disabled, 1=requests, 2=SNI)
behindProxy: false, // If hosting is behind CloudFlare or NGINX then enable this option
auth: String, // Secret token that must be sent in the request header "x-simple-hosting"
certbot: true // Handle renewal of certificates
}
If you're not behind any kind of proxy then don't worry about the auth
option.
If you're behind CloudFlare, NGINX, etc then to avoid spoofing headers you must use the auth
option.
CloudFlare authentication:
- Go to Rules -> Transform Rules -> Modify Request Header.
- Create a rule for all incoming requests.
- Set the header name as
x-simple-hosting
with your secret auth token as value.
NGINX authentication:
- Configure it like
proxy_set_header x-simple-hosting <secret-auth-token>
Certbot
Hosting can automatically handle renewals for any domain even if not managed by Hosting itself.
Issue a certficiate:
sudo certbot certonly --webroot --webroot-path /tmp/letsencrypt -d sub.example.com
Let it auto-renew with its cron or manually run it:
sudo certbot renew
hosting.add(servername, options)
Add a new app to the hosting by its domain name.
Available options
:
{
destination: String, // Target URL (required)
location: Object, // Extra "starts with" URL matches
cert: String, // Eg fullchain.pem
key: String, // Eg privkey.pem
certbot: false, // Use default paths for Certbot (ignores `cert` and `key` options)
behindProxy, // Inherits the Hosting value by default (pass false to disable)
auth // Inherits the Hosting value by default (pass null to disable)
}
cert
and key
are used to create the secure context for the HTTPS server.
Files will be watched for changes to auto-update the secure context.
If you use CloudFlare in front of Hosting then you don't need to set the certificate and key.
Otherwise consider using Certbot.
hosting.edit(servername, [options])
Change the app configuration in real-time. For example, you could change the destination
URL.
Same options
as for adding an app.
await hosting.listen([options])
Start listening for new requests. Each hosting has two servers (HTTP and HTTPS).
Available options
:
{
insecurePort: 80,
securePort: 443 // Pass `false` to disable the HTTPS server
}
License
MIT