# What is HAProxy?

HAProxy is a free, open source high availability solution, providing load
balancing and proxying for TCP and HTTP-based applications by spreading requests
across multiple servers. It is written in C and has a reputation for being fast
and efficient (in terms of processor and memory usage).

> [wikipedia.org/wiki/HAProxy](https://en.wikipedia.org/wiki/HAProxy)

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# How to use this image

Since no two users of HAProxy are likely to configure it exactly alike, this
image does not come with any default configuration.

Please refer to [upstream's excellent (and comprehensive)
documentation](https://cbonte.github.io/haproxy-dconv/) on the subject of
configuring HAProxy for your needs.

It is also worth checking out the [`examples/` directory from
upstream](http://www.haproxy.org/git?p=haproxy-1.5.git;a=tree;f=examples).

## Create a `Dockerfile`

    FROM haproxy:1.5
    COPY haproxy.cfg /usr/local/etc/haproxy/haproxy.cfg

Build and run:

    docker build -t my-haproxy .
    docker run -d --name my-running-haproxy my-haproxy

## Directly via bind mount

    docker run -d --name my-running-haproxy -v /path/to/haproxy.cfg:/usr/local/etc/haproxy/haproxy.cfg:ro haproxy:1.5