ATLAS-3934: Dockerfile: updated default to build from local repo (instead of from github) - #2

dev-support/atlas-docker/Dockerfile.atlas-build

@@ -42,8 +42,4 @@ VOLUME /home/atlas/src
 
 USER atlas
 
-WORKDIR /home/atlas/git
-
-RUN git clone https://github.com/apache/atlas.git
-
 ENTRYPOINT [ "/home/atlas/scripts/atlas-build.sh" ]

dev-support/atlas-docker/README.md

@@ -56,10 +56,10 @@ Docker files in this folder create docker images and run them to build Apache At
    4.3. Build Apache Atlas in a container with one of the following commands:
 
         # to build from a specific branch
-        docker run -it --rm -v ${HOME}/.m2:/home/atlas/.m2 -v $(pwd)/scripts:/home/atlas/scripts -v $(pwd)/patches:/home/atlas/patches -v $(pwd)/dist:/home/atlas/dist -e BRANCH=master -e PROFILE=dist,berkeley-solr -e SKIPTESTS=true atlas-build
+        docker run -it --rm -v ${HOME}/.m2:/home/atlas/.m2:delegated -v $(pwd)/scripts:/home/atlas/scripts -v $(pwd)/patches:/home/atlas/patches -v $(pwd)/dist:/home/atlas/dist -e BRANCH=master -e PROFILE=dist,berkeley-solr -e SKIPTESTS=true atlas-build
 
         # to build from local sources
-        docker run -it --rm -v ${HOME}/.m2:/home/atlas/.m2 -v $(pwd)/scripts:/home/atlas/scripts -v $(pwd)/../..:/home/atlas/src -v $(pwd)/dist:/home/atlas/dist -e PROFILE=dist,berkeley-solr -e SKIPTESTS=true atlas-build
+        docker run -it --rm -v ${HOME}/.m2:/home/atlas/.m2:delegated -v $(pwd)/scripts:/home/atlas/scripts -v $(pwd)/../..:/home/atlas/src:delegated -v $(pwd)/dist:/home/atlas/dist -e PROFILE=dist,berkeley-solr -e SKIPTESTS=true atlas-build
 
    Time taken to complete the build might vary (upto an hour), depending on status of ${HOME}/.m2 directory cache.
 

dev-support/atlas-docker/docker-compose.atlas-build.yml

@@ -12,10 +12,11 @@ services:
     networks:
       - atlas
     volumes:
-      - ~/.m2:/home/atlas/.m2
+      - ~/.m2:/home/atlas/.m2:delegated
       - ./scripts:/home/atlas/scripts
       - ./patches:/home/atlas/patches
       - ./dist:/home/atlas/dist
+      - ./../..:/home/atlas/src:delegated
     depends_on:
       - atlas-base
     environment:

dev-support/atlas-docker/scripts/atlas-build.sh

@@ -21,6 +21,11 @@ then
   BRANCH=master
 fi
 
+if [ "${GIT_URL}" == "" ]
+then
+  GIT_URL=https://github.com/apache/atlas.git
+fi
+
 if [ "${PROFILE}" != "" ]
 then
   ARG_PROFILES="-P${PROFILE}"
@@ -43,12 +48,22 @@ then
 
   cd /home/atlas/src
 else
-  echo "Building from /home/atlas/git/atlas"
+  echo "Building ${BRANCH} branch from ${GIT_URL}"
 
-  cd /home/atlas/git/atlas
+  cd /home/atlas/git
+
+  if [ -d atlas ]
+  then
+    renamedDir=atlas-`date +"%Y%m%d-%H%M%S"`
 
-  git checkout ${BRANCH}
-  git pull
+    echo "Renaming existing directory `pwd`/atlas to ${renamedDir}"
+
+    mv atlas $renamedDir
+  fi
+
+  git clone --single-branch --branch ${BRANCH} ${GIT_URL}
+
+  cd /home/atlas/git/atlas
 
   for patch in `ls -1 /home/atlas/patches | sort`
   do