diff --git a/action.Dockerfile b/action.Dockerfile
index b1a762b..3194ef0 100644
--- a/action.Dockerfile
+++ b/action.Dockerfile
@@ -1,5 +1,5 @@
 FROM icinga/icinga2-builder
 
-COPY action.bash Dockerfile /
+COPY action.bash compile.bash Dockerfile /
 
 CMD ["/action.bash"]
diff --git a/action.bash b/action.bash
index 42070b9..c445067 100755
--- a/action.bash
+++ b/action.bash
@@ -15,26 +15,10 @@ mkimg () {
 	node /actions/checkout/dist/index.js |grep -vFe ::add-matcher::
 	cache restore
 
-	export PATH="/usr/lib/ccache:$PATH"
 	mkdir -p ccache
 	ln -vs "$(pwd)/ccache" ~/.ccache
 
-	mkdir icinga2-bin
-	mkdir build
-	cd build
-
-	cmake -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_INSTALL_SYSCONFDIR=/etc \
-		-DCMAKE_INSTALL_LOCALSTATEDIR=/var -DICINGA2_RUNDIR=/run \
-		-DICINGA2_SYSCONFIGFILE=/etc/sysconfig/icinga2 -DICINGA2_WITH_{COMPAT,LIVESTATUS}=OFF ..
-
-	make
-	make test
-
-	make install "DESTDIR=$(pwd)/../icinga2-bin"
-
-	cd ..
-
-	rm icinga2-bin/etc/icinga2/features-enabled/mainlog.conf
+	/compile.bash
 
 	cache save
 	docker build -f /Dockerfile -t "${TARGET}:$TAG" .
diff --git a/compile.bash b/compile.bash
new file mode 100755
index 0000000..b1e05bd
--- /dev/null
+++ b/compile.bash
@@ -0,0 +1,21 @@
+#!/bin/bash
+set -exo pipefail
+
+export PATH="/usr/lib/ccache:$PATH"
+
+mkdir icinga2-bin
+mkdir build
+cd build
+
+cmake -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_INSTALL_SYSCONFDIR=/etc \
+	-DCMAKE_INSTALL_LOCALSTATEDIR=/var -DICINGA2_RUNDIR=/run \
+	-DICINGA2_SYSCONFIGFILE=/etc/sysconfig/icinga2 -DICINGA2_WITH_{COMPAT,LIVESTATUS}=OFF ..
+
+make
+make test
+
+make install "DESTDIR=$(pwd)/../icinga2-bin"
+
+cd ..
+
+rm icinga2-bin/etc/icinga2/features-enabled/mainlog.conf