Add script to build project sources using maven docker container

.bin/build-all.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+
+# Workaround for running from Git Bash on Windows:
+export MSYS_NO_PATHCONV=1
+
+script_path=$(realpath "$0")
+script_dir=$(dirname "$script_path")
+project_root=$(dirname "$script_dir")
+
+work_dir="/usr/src/verapdf-webapp-server"
+
+# Build all project sources
+docker run -it \
+  --rm --name build-verapdf-webapp-server \
+  -v maven-repo:/root/.m2 \
+  -v "$project_root":$work_dir \
+  -w $work_dir \
+  maven:3.6-jdk-11 mvn clean package

.bin/init.sh

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+# Create a volume to reuse downloaded maven dependencies
+docker volume create --name maven-repo

README.md

@@ -8,10 +8,18 @@ JDK 11, Maven, Docker
 
 **Build sources**
 
+You can use your local Maven installation to build project sources:
 ```
 mvn clean install
 ```
 
+Alternatively you can use a docker maven image.
+For that you need first initialize the volume to re-use maven repo between runs:
+```
+.bin/init.sh
+```
+After that you can use `.bin/build-all.sh` script to run actual building. 
+
 ## Running in Docker
 
 **Run service stack**