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Full Discussion: Re: [docker/for-mac] Support for sharing UNIX sockets (#483)
Top Forums UNIX for Advanced & Expert Users Re: [docker/for-mac] Support for sharing UNIX sockets (#483) Post 303046290 by Neo on Thursday 30th of April 2020 12:15:30 AM
Old 04-30-2020
Re: [docker/for-mac] Support for sharing UNIX sockets (#483)
There now exists an official workaround for this as of Docker for Mac >= 2.2.0.0.

REF: File system sharing (osxfs) | Docker Documentation

The solution involves using a "magic path" specifically for SSH_AUTH_SOCK: /run/host-services/ssh-auth.sock

Mount this special path into the container via docker run args:

Code:
SSH_AUTH_SOCK_MAGIC_PATH='/run/host-services/ssh-auth.sock'
docker run -ti -v ${SSH_AUTH_SOCK_MAGIC_PATH}:${SSH_AUTH_SOCK_MAGIC_PATH} \
           -e SSH_AUTH_SOCK=${SSH_AUTH_SOCK_MAGIC_PATH} \
           some-container/needing-ssh-agent

Note that this does not resolve the main issue of mounting arbitrary Unix sockets into a container. At least it works for ssh-agent / SSH_AUTH_SOCK!

So, this fix does not help when setting up a reverse web proxy to a Unix socket in the container (as mentioned above).


See also: Support for sharing unix sockets . Issue #483 . docker/for-mac . GitHub
 

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LEARN ABOUT MOJAVE

sharing

sharing(8)						    BSD System Manager's Manual 						sharing(8)

NAME

     sharing -- create share points for afp and smb services.

SYNOPSIS

     sharing [-a <path> [options]] [-e <share point name> [options]] [-r <share point name>] [-l]

DESCRIPTION

     A list of flags and their descriptions:

     -a <path>
	      Add a new share point for the directory specified by <path>.

     -e <share point name>
	      Edit the share point record specified by <share point name>.

     -r <share point name>
	      Delete the share point record specified by <share point name>.

     -l       List all existing share point records.

     The following options modify share point record attributes:

     -A <afp name>
	      Use customized name <afp name> when using share point with afp.

     -S <smb name>
	      Use customized name <smb name> when using share points with smb.

     -s <flags>
	      Use this option to enable and disable sharing via afp and smb.  By default a share point is enabled for afp and smb protocols.  To
	      enable and disable particular services, combine (binary AND) the following flags as required: 100 (enable sharing for afp) and 001
	      (enable sharing for smb).  Specify 000 to turn off sharing of a share point altogether.

     -g <guest flag>
	      Use this option to enable and disable guest access for afp and smb.  By default guest access is enabled for afp and smb.	To enable
	      and disable guest access to particular services, combine (binary AND) the following flags as required: 100 (enable guest for afp)
	      and 001 (enable guest for smb).  Specify 000 to turn off guest access for a share point altogether.

     -i <inherit privileges flag>
	      Use this option to enable and disable the "inherit privileges" attribute for afp.  By default "inherit privileges" is enabled for
	      afp.  To enable "inherit privileges", combine (binary AND) the following flags as required: 10 ("inherit privileges" for afp).
	      Specify 00 to turn off "inherit privileges" for a share point altogether.

     -n <customized record name>
	      Specify a <customized record name> to be used as the share point record name.  By default the record name is the name of the direc-
	      tory pointed to by the share point record.  This directory is specified by the <path> when the record is created.

EXAMPLES

	   /usr/sbin/sharing -a /SomePath/ShareThisDirectory

     This example shows how to create a share point for the directory "/SomePath/ShareThisDirectory":

	   /usr/sbin/sharing -e ShareThisDirectory -A SP1 -g 101

     This example shows how to edit the share point record created above, adding a customized name "SP1" for afp servies, and enabling guest
     access only for afp and smb.

FILES

     /usr/sbin/sharing				   location of tool

macOS								   June 1, 2019 							     macOS
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