Optimise docker build space usage (#10224)

* Use BuildKit builder instead of legacy one

Signed-off-by: Artem Savchenko <armisav@gmail.com>

* fix: use slim docker image

Signed-off-by: Alexander Onnikov <Alexander.Onnikov@xored.com>

* Add dockerignore

Signed-off-by: Artem Savchenko <armisav@gmail.com>

* Clean up build artifacts

Signed-off-by: Artem Savchenko <armisav@gmail.com>

* Clean up

Signed-off-by: Artem Savchenko <armisav@gmail.com>

* Fix flag

Signed-off-by: Artem Savchenko <armisav@gmail.com>

---------

Signed-off-by: Artem Savchenko <armisav@gmail.com>
Signed-off-by: Alexander Onnikov <Alexander.Onnikov@xored.com>
Co-authored-by: Alexander Onnikov <Alexander.Onnikov@xored.com>

common/scripts/docker_build.sh

@@ -2,6 +2,33 @@
 
 version=$(git rev-parse HEAD)
 
+# Check for cleanup flag from environment
+cleanup=false
+if [ "$DOCKER_BUILD_CLEANUP" = "true" ]; then
+  cleanup=true
+fi
+
 echo "Building version: $version" 
 
 docker build -t "$1" -t "$1:$version" ${DOCKER_EXTRA} .
+
+if [ "$cleanup" = true ]; then
+  echo "Cleaning up build artifacts..."
+
+  if [ -d "bundle" ]; then
+    echo "  Removing bundle/"
+    rm -rf bundle
+  fi
+
+  if [ -d "dist" ]; then
+    echo "  Removing dist/"
+    rm -rf dist
+  fi
+
+  if [ -d ".rush" ]; then
+    echo "  Removing .rush/"
+    rm -rf .rush
+  fi
+
+  echo "  Size after cleanup: $(du -sh . 2>/dev/null | cut -f1)"
+fi