Add --build-arg PRE_INSTALL_SCRIPT to improve build time

.gitignore

@@ -0,0 +1,52 @@
+# Created by .ignore support plugin (hsz.mobi)
+### JetBrains template
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and Webstorm
+# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+
+# User-specific stuff:
+.idea
+.idea/**/tasks.xml
+.idea/dictionaries
+
+# Sensitive or high-churn files:
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.xml
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+
+# Gradle:
+.idea/**/gradle.xml
+.idea/**/libraries
+
+# CMake
+cmake-build-debug/
+
+# Mongo Explorer plugin:
+.idea/**/mongoSettings.xml
+
+## File-based project format:
+*.iws
+
+## Plugin-specific files:
+
+# IntelliJ
+out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Cursive Clojure plugin
+.idea/replstate.xml
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+

Dockerfile

@@ -27,6 +27,9 @@ RUN chmod -R 750 $BUILD_SCRIPTS_DIR
 ONBUILD ARG APT_GET_INSTALL
 ONBUILD ENV APT_GET_INSTALL $APT_GET_INSTALL
 
+ONBUILD ARG PRE_INSTALL_SCRIPT
+ONBUILD ENV PRE_INSTALL_SCRIPT $PRE_INSTALL_SCRIPT
+
 ONBUILD ARG NODE_VERSION
 ONBUILD ENV NODE_VERSION ${NODE_VERSION:-8.9.0}
 
@@ -46,6 +49,10 @@ ONBUILD ENV INSTALL_GRAPHICSMAGICK $INSTALL_GRAPHICSMAGICK
 ONBUILD ARG TOOL_NODE_FLAGS
 ONBUILD ENV TOOL_NODE_FLAGS $TOOL_NODE_FLAGS
 
+# optionally run scripts before launchpad installation to cache big dependencies in lower layer that don´t change often
+ONBUILD COPY ./$PRE_INSTALL_SCRIPT $BUILD_SCRIPTS_DIR
+ONBUILD RUN if [ "$PRE_INSTALL_SCRIPT" ]; then $BUILD_SCRIPTS_DIR/$PRE_INSTALL_SCRIPT; fi
+
 # optionally custom apt dependencies at app build time
 ONBUILD RUN if [ "$APT_GET_INSTALL" ]; then apt-get update && apt-get install -y $APT_GET_INSTALL; fi
 

README.md

@@ -91,6 +91,7 @@ If you prefer not to have a config file in your project, your other option is to
 ```sh
 docker build \
   --build-arg APT_GET_INSTALL="curl git wget" \
+  --build-arg PRE_INSTALL_SCRIPT="yourscript.sh" \
   --build-arg INSTALL_MONGO=true \
   --build-arg NODE_VERSION=8.9.0 \
   -t myorg/myapp:latest .

dev.dockerfile

@@ -33,6 +33,9 @@ RUN bash $BUILD_SCRIPTS_DIR/install-deps.sh && \
 ONBUILD ARG APT_GET_INSTALL
 ONBUILD ENV APT_GET_INSTALL $APT_GET_INSTALL
 
+ONBUILD ARG PRE_INSTALL_SCRIPT
+ONBUILD ENV PRE_INSTALL_SCRIPT $PRE_INSTALL_SCRIPT
+
 ONBUILD ARG NODE_VERSION
 ONBUILD ENV NODE_VERSION ${NODE_VERSION:-8.9.0}
 
@@ -45,6 +48,10 @@ ONBUILD ENV INSTALL_PHANTOMJS ${INSTALL_PHANTOMJS:-true}
 ONBUILD ARG INSTALL_GRAPHICSMAGICK
 ONBUILD ENV INSTALL_GRAPHICSMAGICK ${INSTALL_GRAPHICSMAGICK:-true}
 
+# optionally run scripts before launchpad installation to cache big dependencies in lower layer that don´t change often
+ONBUILD COPY ./$PRE_INSTALL_SCRIPT $BUILD_SCRIPTS_DIR
+ONBUILD RUN if [ "$PRE_INSTALL_SCRIPT" ]; then $BUILD_SCRIPTS_DIR/$PRE_INSTALL_SCRIPT; fi
+
 # optionally custom apt dependencies at app build time
 ONBUILD RUN if [ "$APT_GET_INSTALL" ]; then apt-get update && apt-get install -y $APT_GET_INSTALL; fi