diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index b25c75b..143c153 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -6,7 +6,7 @@ stages:
 variables:
   DOCKER_IMAGE_BASE: registry.icinga.com/build-docker
   ICINGA_BUILD_TYPE: snapshot
-  #ICINGA_BUILD_UPSTREAM_BRANCH:
+  ICINGA_BUILD_UPSTREAM_BRANCH: snapshot/nightly
 
 .build: &build
   stage: build
diff --git a/get_snapshot b/get_snapshot
new file mode 100755
index 0000000..55044a9
--- /dev/null
+++ b/get_snapshot
@@ -0,0 +1,87 @@
+#!/bin/bash
+# Copyright (c) 2017 Icinga Development Team <info@icinga.com>
+# Licensed as GPL-2.0+
+
+set -e
+
+while getopts ":p:U:b:" opt
+do
+    case "$opt" in
+    p)
+        PROJECT="$OPTARG"
+        ;;
+    U)
+        UPSTREAM_GIT_URL="$OPTARG"
+        ;;
+    b)
+        UPSTREAM_GIT_BRANCH="$OPTARG"
+        ;;
+    \?)
+        echo "Unknown argument: $OPTARG" >&2
+        exit 1
+        ;;
+    esac
+done
+
+: ${PROJECT:=icinga-php-thirdparty}
+: ${UPSTREAM_GIT_URL:=https://github.com/Icinga/$PROJECT.git}
+: ${UPSTREAM_GIT_BRANCH:=snapshot/nightly}
+
+set -x
+
+if [ -z "$UPSTREAM_GIT_NOREPO" ]; then
+    if [ -d "${PROJECT}.git/" ]; then
+        cd "${PROJECT}.git"
+        if [ ! -d .git ]; then
+            echo "This is not a GIT repository: $(pwd)" >&2
+            exit 1
+        fi
+        if [ -z "$UPSTREAM_GIT_NOUPDATE" ]; then
+            if [ "$(git config remote.origin.url)" != "${UPSTREAM_GIT_URL}" ]; then
+                git remote set-url origin "${UPSTREAM_GIT_URL}"
+            fi
+            git fetch origin -p
+            git checkout -f "${UPSTREAM_GIT_BRANCH}"
+            git reset --hard "origin/${UPSTREAM_GIT_BRANCH}"
+        fi
+        git clean -fdx
+    elif [ -z "$UPSTREAM_GIT_NOUPDATE" ]; then
+        git clone -b "${UPSTREAM_GIT_BRANCH}" "${UPSTREAM_GIT_URL}" "${PROJECT}.git/"
+        cd "${PROJECT}.git"
+    else
+        echo "Missing '${PROJECT}.git' directory!" >&2
+        exit 1
+    fi
+fi
+
+git_version=$(git describe --tags "${UPSTREAM_GIT_BRANCH}")
+git_commit=$(git rev-parse "${UPSTREAM_GIT_BRANCH}")
+package_version=$(echo "$git_version" | sed -e 's/^v//' -e 's/-/./g')
+prefix="${PROJECT}-${package_version}"
+tarball="${prefix}.orig.tar"
+
+git archive --format=tar --prefix="${prefix}/" -o "../${tarball}" "${UPSTREAM_GIT_BRANCH}"
+
+cd ../
+
+# create files with the properly set versions for snapshot
+rm -rf "${prefix:?}/"
+
+mkdir -p "${prefix:?}/"
+echo "${package_version}" > "${prefix:?}/VERSION"
+
+# add to tarball and remove tmpdir
+tar --append -f "${tarball}" "${prefix}"/
+rm -rf "${prefix:?}/"
+
+# pack tarball
+gzip -vf9 "${tarball}"
+sha256sum "${tarball}.gz"
+
+# store package version for build scripts
+printf '%s\t%s\t%s\t%s' \
+  "${package_version}" \
+  "${git_commit}" \
+  "$(basename "${tarball}.gz")" \
+  "${UPSTREAM_GIT_BRANCH}" \
+  > "${PROJECT}.version"
\ No newline at end of file