![nginx 1.7.8](https://img.shields.io/badge/nginx-1.7.8-brightgreen.svg) ![License MIT](https://img.shields.io/badge/license-MIT-blue.svg) 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 multiple 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. ### Wildcard Hosts You can also use wildcards at the beginning and the end of host name, like `*.bar.com` or `foo.bar.*`. Or even a regular expression, which can be very useful in conjunction with a wildcard DNS service like [xip.io](http://xip.io), using `~^foo\.bar\..*\.xip\.io` will match `foo.bar.127.0.0.1.xip.io`, `foo.bar.10.0.2.2.xip.io` and all other given IPs. More information about this topic can be found in the nginx documentation about [`server_names`](http://nginx.org/en/docs/http/server_names.html). ### 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 using single host, wildcard and SNI certificates using naming conventions for certificates or optionally specifying 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=` 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)