Class: Dev::Docker::Desktop

Inherits:
Object show all
Defined in:
lib/firespring_dev_commands/docker/desktop.rb

Overview

Class for configuring docker desktop This is mostly around configuring the docker URL correctly

Constant Summary collapse

WIN_TCP_COMPOSE_CONTENT =

A snippet of a docker compose file which forwards a socket to a local port so that we can read it in the docker library

"
---
version: '3.8'
services:
  windows_tcp:
image: alpine/socat
network_mode: bridge
ports:
  - 127.0.0.1:23750:2375
volumes:
  - /var/run/docker.sock:/var/run/docker.sock
command: tcp-listen:2375,reuseaddr,fork unix-connect:/var/run/docker.sock
restart: always".freeze

Instance Method Summary collapse

Instance Method Details

#configure ⇒ Object

Set up the local ports/sockets correctly based off of the os type



22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
 
# File 'lib/firespring_dev_commands/docker/desktop.rb', line 22

def configure
  if Dev::Os.new.windows?
    # Start up a small proxy container if running Docker Desktop on windows
    # This is needed because the docker api library cannot connect to the windows socket
    unless Dev::Port.new('127.0.0.1', 23_750).open?
      LOG.info('Starting local proxy port for docker')

      # Write the compose data to a tmp file
      tmp_compose_file = Tempfile.new('windows_tcp')
      tmp_compose_file.write(WIN_TCP_COMPOSE_CONTENT)
      tmp_compose_file.close

      # Start up the container
      Dev::Docker::Compose.new(
        compose_files: tmp_compose_file.path,
        options: ['--detach'],
        project_name: 'proxy'
      ).up

      # Wait 1 second before we continue
      sleep 1
    end

    # Configure the docker url to use 23750 on windows
    ::Docker.url = 'tcp://127.0.0.1:23750'

  else
    # If a user based socket has been defined, default to that
    ::Docker.url = if File.exist?("/#{Dir.home}/.docker/run/docker.sock")
                     "unix://#{Dir.home}/.docker/run/docker.sock"
                   elsif File.exist?("/#{Dir.home}/.docker/desktop/docker.sock")
                     "unix://#{Dir.home}/.docker/desktop/docker.sock"
                   end
  end
end