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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 OSX

sharing

sharing(1)						    BSD General Commands Manual 						sharing(1)

NAME

     sharing -- create share points for afp, ftp 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.

     Description of options The following options modify share point record attributes

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

     -F <ftp name>
	      use customized name <ftp name> when using share point with ftp.

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

     -s <flags>
	      use this option to modify individually, the sharing attribute for afp, ftp and smb.  By default a share point record is enabled for
	      afp, ftp and smb.  To modify the indiviual attributes AND the following flags as required: 100 (enable sharing for afp only), 010
	      (enable sharing for ftp only), 001 (enable sharing for smb only). Specify 000 to turn off sharing of a share point all together.
	      use customized name <smb name> when using share points with smb.

     -g <guest flag>
	      use this option to modify individually, the "guest" attribute for afp, ftp and smb.  The "guest" attribute specifies whether a ser-
	      vice will allow guest access to this share point record.	By default a "guest" is enabled for afp, ftp and smb.  To modify the
	      attribute, AND the following <guest flags> as required: 100 (enable guest access for afp only), 010 (enable guest access for ftp
	      only), 001 (enable guest access for smb only). Specify 000 to turn off guest access for the share point all together.

     -i <inherit privileges flag>
	      use this option to modify the "inherit privileges" attribute for afp.  The "inherit privileges" attribute specifies whether afp will
	      apply the classic privilege model to operations within this share point.	By default "inherit privileges" is disabled for afp.  To
	      modify the "inherit privileges", AND the following <guest flags> as required: 10 (enable "inherit privileges" for afp only).  Spec-
	      ify 00 to turn off "inherit privileges" for the share point all together.

     -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 bt the <path> when the record is created.

EXAMPLES

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

     This example shows how create a share point record 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

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