Merge branch 'annex_in_docker' into 'master'

Add git-annex to the docker container.

Fixes gitlab-org/omnibus-gitlab#1215

See merge request !723

CHANGELOG.md

@@ -14,6 +14,7 @@ omnibus-gitlab repository.
 - Enable Git LFS by default (Ben Bodenmiller) 22345799
 - Updated how we detect when to update the :latest and :rc docker build tags cb3af445
 - Disable automatic git gc 8ed13f4b
+- Add git-annex to the docker image
 
 8.6.4
 

docker/Dockerfile

@@ -10,7 +10,8 @@ RUN apt-get update -q \
       apt-transport-https \
       vim \
       nano \
-      patch
+      patch \
+      git-annex
 
 # Copy assets
 COPY RELEASE /