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Error response from daemon: (config) includes invalid characters for local volume name

I have a running node server that is listening on 3 different ports. I have three different url subdomains pointing to the port of the 80

server that node is running on.

What I am trying to do is proxy the request from the subdomain to the appropriate port using haproxy

.

My node server is connected to ports open on the host. I can hit them individually using the server IP on my port to make them look fine.

My haproxy

will also run inside a docker container. I'm completely new to haproxy

, although I'm pretty confident about docker. I wrote haproxy config via onine articles and blogs, but as soon as I started the docker container using:

docker run --name my-running-haproxy \
  -v ./haproxy.cfg:/usr/local/etc/haproxy/haproxy.cfg:ro \
  haproxy:1.6.2

I am getting the following error:

Error response from daemon: ./ haproxy.cfg contains invalid characters for local volume name, only allowed [a-zA-Z0-9] [a-zA-Z0-9 _.-]

So, I tried debugging by removing the config options until I had a very minimal config:

haproxy.cfg

global
    maxconn 256
    debug

defaults
    mode http
    timeout connect 5000ms
    timeout client 50000ms
    timeout server 50000ms

frontend http-in
    bind *:80
    default_backend default-server

backend default-server
    server s0 127.0.0.1:3000

But still I am getting the same error.

Can anyone help me with this?

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2 answers


I had the same problem and solved it using the full path to my config file.

Original

docker run --name my-running-haproxy \
  -v ./haproxy.cfg:/usr/local/etc/haproxy/haproxy.cfg:ro \
  haproxy:1.6.2


Fixed

docker run --name my-running-haproxy \
  -v /usr/local/haproxy.cfg:/usr/local/etc/haproxy/haproxy.cfg:ro \
  haproxy:1.6.2
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$ docker -v
Docker version 1.11.2, build b9f10c9

Using a relative path:

Example: ./haproxy.cfg

Example: ./PATH/haproxy.cfg

An example of a hidden file: ./PATH/.haproxy.cfg 

  -v ./haproxy.cfg:/usr/local/etc/haproxy/haproxy.cfg:ro


Using an absolute path:

Example: /haproxy.cfg

Example: /PATH/haproxy.cfg

An example of a hidden file: /PATH/.haproxy.cfg

Example: $PWD/haproxy.cfg 

  -v /PATH/haproxy.cfg:/usr/local/etc/haproxy/haproxy.cfg:ro
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