mirror of
https://github.com/thib8956/nginx-proxy
synced 2024-11-22 20:06:30 +00:00
107 lines
5.1 KiB
Markdown
107 lines
5.1 KiB
Markdown
nginx-proxy sets up a container running nginx and [docker-gen][1]. docker-gen generate reverse proxy configs for nginx and reloads nginx when containers are started and stopped.
|
|
|
|
See [Automated Nginx Reverse Proxy for Docker][2] for why you might want to use this.
|
|
|
|
### Usage
|
|
|
|
To run it:
|
|
|
|
$ docker run -d -p 80:80 -v /var/run/docker.sock:/tmp/docker.sock jwilder/nginx-proxy
|
|
|
|
Then start any containers you want proxied with an env var `VIRTUAL_HOST=subdomain.youdomain.com`
|
|
|
|
$ docker run -e VIRTUAL_HOST=foo.bar.com ...
|
|
|
|
Provided your DNS is setup to forward foo.bar.com to the a host running nginx-proxy, the request will be routed to a container with the VIRTUAL_HOST env var set.
|
|
|
|
### Multiple Ports
|
|
|
|
If your container exposes multiple ports, nginx-proxy will default to the service running on port 80. If you need to specify a different port, you can set a VIRTUAL_PORT env var to select a different one. If your container only exposes one port and it has a VIRTUAL_HOST env var set, that port will be selected.
|
|
|
|
[1]: https://github.com/jwilder/docker-gen
|
|
[2]: http://jasonwilder.com/blog/2014/03/25/automated-nginx-reverse-proxy-for-docker/
|
|
|
|
### Multiple Hosts
|
|
|
|
If you need to support multipe virtual hosts for a container, you can separate each entry with commas. For example, `foo.bar.com,baz.bar.com,bar.com` and each host will be setup the same.
|
|
|
|
### Separate Containers
|
|
|
|
nginx-proxy can also be run as two separate containers using the [jwilder/docker-gen](https://index.docker.io/u/jwilder/docker-gen/)
|
|
image and the official [nginx](https://registry.hub.docker.com/_/nginx/) image.
|
|
|
|
You may want to do this to prevent having the docker socket bound to a publicly exposed container service.
|
|
|
|
To run nginx proxy as a separate container you'll need to have [nginx.tmpl](https://github.com/jwilder/nginx-proxy/blob/master/nginx.tmpl) on your host system.
|
|
|
|
First start nginx with a volume:
|
|
|
|
|
|
$ docker run -d -p 80:80 --name nginx -v /tmp/nginx:/etc/nginx/conf.d -t nginx
|
|
|
|
Then start the docker-gen container with the shared volume and template:
|
|
|
|
```
|
|
$ docker run --volumes-from nginx \
|
|
-v /var/run/docker.sock:/tmp/docker.sock \
|
|
-v $(pwd):/etc/docker-gen/templates \
|
|
-t docker-gen -notify-sighup nginx -watch -only-published /etc/docker-gen/templates/nginx.tmpl /etc/nginx/conf.d/default.conf
|
|
```
|
|
|
|
Finally, start your containers with `VIRTUAL_HOST` environment variables.
|
|
|
|
$ docker run -e VIRTUAL_HOST=foo.bar.com ...
|
|
|
|
### SSL Support
|
|
|
|
SSL is supported single host, wildcards and SNI certificates using naming conventions for
|
|
certificates or optionally specify a cert name (for SNI) as an environment variable.
|
|
|
|
To enable SSL:
|
|
|
|
$ docker run -d -p 80:80 -p 443:443 -v /path/to/certs:/etc/nginx/certs -v /var/run/docker.sock:/tmp/docker.sock jwilder/nginx-proxy
|
|
|
|
The contents of `/path/to/certs` should contain the certificates and private keys for any virtual
|
|
hosts in use. The certificate and keys should be named after the virtual host with a `.crt` and
|
|
`.key` extension. For example, a container with `VIRTUAL_HOST=foo.bar.com` should have a
|
|
`foo.bar.com.crt` and `foo.bar.com.key` file in the certs directory.
|
|
|
|
#### Wildcard Certificates
|
|
|
|
Wildcard certificates and keys should be name after the domain name with a `.crt` and `.key` extension.
|
|
For example `VIRTUAL_HOST=foo.bar.com` would use cert name `bar.com.crt` and `bar.com.key`.
|
|
|
|
#### SNI
|
|
|
|
If your certificate(s) supports multiple domain names, you can start a container with `CERT_NAME=<name>`
|
|
to identify the certificate to be used. For example, a certificate for `*.foo.com` and `*.bar.com`
|
|
could be named `shared.crt` and `shared.key`. A container running with `VIRTUAL_HOST=foo.bar.com`
|
|
and `CERT_NAME=shared` will then use this shared cert.
|
|
|
|
#### How SSL Support Works
|
|
|
|
The SSL cipher configuration is based on [mozilla nginx intermediate profile](https://wiki.mozilla.org/Security/Server_Side_TLS#Nginx) which
|
|
should provide compatibility with clients back to Firefox 1, Chrome 1, IE 7, Opera 5, Safari 1,
|
|
Windows XP IE8, Android 2.3, Java 7. The configuration also enables HSTS, and SSL
|
|
session caches.
|
|
|
|
The behavior for the proxy when port 80 and 443 are exposed is as follows:
|
|
|
|
* If a container has a usable cert, port 80 will redirect to 443 for that container so that HTTPS
|
|
is always preferred when available.
|
|
* If the container does not have a usable cert, a 503 will be returned.
|
|
|
|
Note that in the latter case, a browser may get an connection error as no certificate is available
|
|
to establish a connection. A self-signed or generic cert named `default.crt` and `default.key`
|
|
will allow a client browser to make a SSL connection (likely w/ a warning) and subsequently receive
|
|
a 503.
|
|
|
|
### Basic Authentication Support
|
|
|
|
In order to be able to securize your virtual host, you have to create a file named as its equivalent VIRTUAL_HOST variable on directory
|
|
/etc/nginx/htpasswd/$VIRTUAL_HOST
|
|
|
|
$ docker run -d -p 80:80 -p 443:443 -v /path/to/htpasswd:/etc/nginx/htpasswd -v /path/to/certs:/etc/nginx/certs -v /var/run/docker.sock:/tmp/docker.sock jwilder/nginx-proxy
|
|
|
|
You'll need apache2-utils on the machine you plan to create de htpasswd file. Follow these [instructions](http://httpd.apache.org/docs/2.2/programs/htpasswd.html)
|