diff --git a/home/.zshrc.docker b/home/.zshrc.docker
new file mode 100755
index 0000000..8286a7f
--- /dev/null
+++ b/home/.zshrc.docker
@@ -0,0 +1,32 @@
+# Docker function definitions
+
+function speedtest() {
+	docker run --rm tianon/speedtest
+}
+
+function docker-imagecheck() {
+	created=$(date -d $(docker inspect "$1" | jshon -e 0 -e Created -u) "+%s")
+	now=$(date "+%s")
+	if [ "$((created + (5*24*60*60)))" -lt "$now" ];then
+		echo "$1 is older than 5 days, pulling…"
+		docker pull $1
+	else
+		echo "$1 is up to date, skipping…"
+	fi
+}
+
+function docker-gimp() {
+	for file in $@; do
+		files="${files}/home/gui/data/${file} "
+	done
+	docker run --rm -d \
+	           -v /tmp/.X11-unix:/tmp/.X11-unix \
+		   -v $PWD:/home/gui/data/ \
+		   -v /tmp/:/home/gui/tmp/ \
+	           -e DISPLAY \
+	           -e LANG \
+	           -e uid=$UID \
+	           -e gid=$UID \
+		   --device /dev/dri \
+	           r.jalr.de/sbruder/docker-gimp $files
+}
diff --git a/home/.zshrc.local b/home/.zshrc.local
index fcff826..3cac3d3 100644
--- a/home/.zshrc.local
+++ b/home/.zshrc.local
@@ -155,3 +155,9 @@ alias mpvhdr="mpv --tone-mapping=hable"
 export HVSC_BASE="$HOME/Dokumente/sound/HVSC/"
 export ESP_ROOT="$HOME/projekte/esp8266/esp-open-sdk"
 export ANDROID_HOME="$HOME/projekte/android/sdk"
+
+## include docker functions
+source ~/.zshrc.docker
+
+## include drone secrets
+[ -e ~/.zshrc.drone ] && source ~/.zshrc.drone