diff --git a/inventory/group_vars/all/all.yml b/inventory/group_vars/all/all.yml
index 2e203c9852..cb6a113b33 100644
--- a/inventory/group_vars/all/all.yml
+++ b/inventory/group_vars/all/all.yml
@@ -128,3 +128,9 @@ is_metal: >-
   {{ (properties is defined) and
      (properties.is_metal is defined) and
      (properties.is_metal | bool) }}
+
+_global_pins_file_path: >-
+  {{ (lookup('env', 'OSA_CLONE_ROOT') | default('/opt/openstack-ansible', true)) ~ '/global-requirement-pins.txt' }}
+
+venv_build_global_constraints: >-
+  {{ lookup('file', _global_pins_file_path).splitlines() | reject('match','^#.*$') | reject('equalto', '') | list }}
diff --git a/scripts/bootstrap-ansible.sh b/scripts/bootstrap-ansible.sh
index 3a8af10fd5..1a0623b441 100755
--- a/scripts/bootstrap-ansible.sh
+++ b/scripts/bootstrap-ansible.sh
@@ -176,8 +176,9 @@ sed -i "s|OSA_PLAYBOOK_PATH|${OSA_PLAYBOOK_PATH}|g" /usr/local/bin/openstack-ans
 
 # Create openstack ansible wrapper tool
 cp -v ${OSA_WRAPPER_BIN} /usr/local/bin/openstack-ansible
+# Mark the current OSA git repo clone directory, so we don't need to compute it every time.
 sed -i "s|OSA_CLONE_DIR|${OSA_CLONE_DIR}|g" /usr/local/bin/openstack-ansible
-# Mark the current OSA version in the wrapper, so we don't need to compute it everytime.
+# Mark the current OSA version in the wrapper, so we don't need to compute it every time.
 sed -i "s|CURRENT_OSA_VERSION|${CURRENT_OSA_VERSION}|g" /usr/local/bin/openstack-ansible
 
 # Ensure wrapper tool is executable
diff --git a/scripts/openstack-ansible.sh b/scripts/openstack-ansible.sh
index c368c987a7..9044087b72 100644
--- a/scripts/openstack-ansible.sh
+++ b/scripts/openstack-ansible.sh
@@ -18,7 +18,10 @@
 # OpenStack wrapper tool to ease the use of ansible with multiple variable files.
 
 export PATH="/opt/ansible-runtime/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:${PATH}"
+
+# These environment variables are used in group_vars
 export OSA_VERSION="CURRENT_OSA_VERSION"
+export OSA_CLONE_ROOT="OSA_CLONE_DIR"
 
 function info {
     if [ "${ANSIBLE_NOCOLOR:-0}" -eq "1" ]; then
@@ -32,7 +35,7 @@ function info {
 RUN_CMD=$(basename ${0})
 
 # Apply the OpenStack-Ansible configuration selectively.
-if [[ "${PWD}" == *"OSA_CLONE_DIR"* ]] || [ "${RUN_CMD}" == "openstack-ansible" ]; then
+if [[ "${PWD}" == *"${OSA_CLONE_ROOT}"* ]] || [ "${RUN_CMD}" == "openstack-ansible" ]; then
 
   # Source the Ansible configuration.
   . /usr/local/bin/openstack-ansible.rc