unable to parse template: template: docker-gen:2208: unexpected unrecognized character in action: U+0000 in command

[udono]

Hi,
I am not sure if this issue is related to docker-gen.
When I try to run your examples with http://fig.sh I get the following error message:

dockergen_1 | 2014/12/21 14:14:37 unable to parse template: template: docker-gen:2208: 
unexpected unrecognized character in action: U+0000 in command

My fig.yml looks like this:

    nginx:
      image: nginx
      volumes:
        - /tmp/nginx:/etc/nginx/conf.d
      ports:
        - "80:80"

    dockergen:
      image: jwilder/docker-gen:0.3.6
      command: /usr/local/bin/docker-gen -notify-sighup nginx -watch --only-published /etc/docker-gen/templates/nginx.tmpl /etc/nginx/conf.d/default.conf
      volumes:
        - /var/run/docker.sock:/tmp/docker.sock
        - /tmp/templates:/etc/docker-gen/templates
      volumes_from:
        - nginx

Ideas?

[andreaskoch]

Hi,
I encountered exactly the same error but I found the solution.

The reason why docker-gen does not work with your fig.yml is because the entrypoint of the jwilder/docker-gen image is already set to docker-gen, so you basically pass /usr/local/bin/docker-gen as the first argument to it and thats why it isn't working.

If you modify your Fig file like this it will work:

nginx:
  image: nginx
  volumes:
    - /tmp/nginx:/etc/nginx/conf.d
  ports:
    - "80:80"

dockergen:
  image: jwilder/docker-gen:0.3.6
  command: -notify-sighup nginx -watch --only-published /etc/docker-gen/templates/nginx.tmpl /etc/nginx/conf.d/default.conf
  volumes:
    - /var/run/docker.sock:/tmp/docker.sock
    - /tmp/templates:/etc/docker-gen/templates
  volumes_from:
    - nginx

@jwilder: Thanks for this great tool.

Greetings
Andy

[jwilder]

Thanks @andreaskoch!

[swapnil7434]

Hi,

I am getting following error.

[nginx-gen-1]2017-07-31T06:36:52.861965607Z 2017/07/31 06:36:52 Unable to parse template: open /etc/docker-gen/templates/nginx.tmpl: no such file or directory

can you please guide me what's wrong in that. Below is my configuration.

nginx:
  image: 'nginx:latest'
  labels:
    com.github.jrcs.letsencrypt_nginx_proxy_companion.nginx_proxy: ''
  ports:
    - '80:80'
    - '443:443'
  tags:
    - app=cornerstone
    - env=dev
  volumes:
    - /etc/nginx/conf.d
    - /etc/nginx/vhost.d
    - /usr/share/nginx/html
    - '/tmp/certs:/etc/nginx/certs:ro'
nginx-gen:
  command: '-notify-sighup nginx -watch -wait 5s:30s /etc/docker-gen/templates/nginx.tmpl /etc/nginx/conf.d/default.conf'
  image: 'jwilder/docker-gen:latest'
  labels:
    com.github.jrcs.letsencrypt_nginx_proxy_companion.docker_gen: ''
  tags:
    - app=cornerstone
    - env=dev
  volumes:
    - '/var/run/docker.sock:/tmp/docker.sock:ro'
    - '/tmp/templates:/etc/docker-gen/templates:ro'
  volumes_from:
    - nginx
nginx-letsencrypt:
  image: 'jrcs/letsencrypt-nginx-proxy-companion:latest'
  tags:
    - app=cornerstone
    - env=dev
  volumes:
    - '/var/run/docker.sock:/var/run/docker.sock:ro'
    - '/tmp/certs:/etc/nginx/certs'
  volumes_from:
    - nginx

[jwilder]

@swapnil7434 See #50 (comment). I also see some ' in spots that might be causing problems.