Implement steps for Multicloud Images

It was implemented the steps required for retrieving or building
docker images as well as their execution.

Change-Id: I20f79c5375377a9406f92f9e3e32a2cbec23a4f9
Signed-off-by: Victor Morales <victor.morales@intel.com>
Depends-On: Idc876574ceee39b7cf389978d6a33eb7c66291a6
Issue-Id: MULTICLOUD-53
diff --git a/bootstrap/vagrant-onap/lib/functions b/bootstrap/vagrant-onap/lib/functions
index 25fbba3..c4ed3c8 100755
--- a/bootstrap/vagrant-onap/lib/functions
+++ b/bootstrap/vagrant-onap/lib/functions
@@ -178,7 +178,7 @@
     fi
 }
 
-# install_python_package() - Install a python module
+# install_python_package() - Install python modules
 function install_python_package {
     local python_packages=$@
 
@@ -186,6 +186,16 @@
     pip install $python_packages
 }
 
+# install_python_requirements() - Install a list of python modules defined in requirement.txt file
+function install_python_requirements {
+    local python_project_path=$1
+
+    _install_pip
+    pushd $python_project_path
+    pip install -r requirements.txt
+    popd
+}
+
 # install_docker() - Download and install docker-engine
 function install_docker {
     if is_package_installed docker-ce; then