l3d#4 Add acl as a tool to set extended permissions

Dockerfile

@@ -2,7 +2,7 @@ FROM alpine:3.8
 
 LABEL com.example.vendor="LakeDrops" \
       maintainer="juergen.haas@lakedrops.com" \
-      version="1.5.0" \
+      version="1.5.1" \
       description="An image for GitLab runner to build and test Drupal projects."
 
 ARG ALPINE_VERSION
@@ -41,7 +41,7 @@ RUN echo 'hosts: files dns' > /etc/nsswitch.conf && \
     echo "StrictHostKeyChecking no" >> /root/.ssh/config && \
     \
     apk update && \
-    apk add --no-cache openssh wget make patch bash fish python git git-lfs unzip && \
+    apk add --no-cache openssh wget make patch bash fish python git git-lfs unzip acl && \
     \
     wget -q https://alpine-pkgs.sgerrand.com/sgerrand.rsa.pub -O /etc/apk/keys/sgerrand.rsa.pub && \
     wget -q https://github.com/sgerrand/alpine-pkg-glibc/releases/download/${glibc_version}/glibc-${glibc_version}.apk && \