Forward gpg-agent to container

[Benjamin Kircher]

> On 5. Jun 2018, at 08:56, Andrew Gallagher <andrewg at andrewg.com> wrote:
> 
>> 
>> On 4 Jun 2018, at 19:44, Benjamin Kircher <benjamin.kircher at gmail.com> wrote:
>> 
>> Now inside the container I can see my socket
>> 
>> # ls -l /gpg-agent 
>> srwx------ 1 root root 0 Jun  4 17:45 /gpg-agent
>> 
>> From here on, I am kind of stuck. I fail to somehow make gpg-agent inside the container “use” the extra-socket. Here is what I am doing:
> 
> This sounds overly complicated. Once you have the extra socket visible inside the container, it should be sufficient to set the environment variable GPG_AGENT_SOCK. You don’t need to start an extra agent inside the container. 

Andrew, thanks for looking into this.

Is this documented somewhere? I can’t find this environment variable in the man-pages and a quick code search over gnupg, libassuan, gpgme, and friends shows no such environment variable.

BK