Update

Dockerfile

     apt-get --yes upgrade && \
     apt-get --yes install ${BUILDDEPS}
 
-ENTRYPOINT ["/bin/bash", "-c"]
+ENTRYPOINT ["/bin/bash", "-c", "#(noop)"]

drone.yml

 #https://github.com/drone-plugins/drone-docker
 - name: prepare
   image: plugins/docker
+  when:
+    event: [ tag ]
   settings:
     dry_run: false
     registry: reg.unino.de
 
 
 - name: build
-  image: debian:stable-slim
+  image: reg.unino.de/library/debian-devel:latest
   when:
     event: [ push, tag ]
   depends_on: [ prepare ]
   environment:
     MAKEFLAGS: -j 4
-    BUILDDEPS: build-essential libc6-dev libhidapi-dev libssl-dev zip
   commands:
-    - | # Use HTTP caching proxy for APT, avoid HTTPS pulls
-      cat >> /etc/apt/apt.conf.d/01-proxy <<-EOF
-        Acquire::http  { Proxy "http://172.17.0.1:3142"; }
-        Acquire::https { Proxy "https://"; };
-      EOF
-    - apt-get update && 
-      apt-get -y upgrade && 
-      apt-get -y install $BUILDDEPS
     - export MAKEFLAGS && make
     - CONTENT=${DRONE_REPO_NAME}
     - test -n "${DRONE_TAG}" &&