OpenStack Orchestration (Heat)
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#!/usr/bin/env bash
# ``upgrade-heat``
function configure_heat_upgrade {
local xtrace
xtrace=$(set +o | grep xtrace)
set -o xtrace
# The dist name for heat changed in rocky from "heat" to
# "openstack-heat". Having the metadata for both packages
# installed causes our plugins to be listed twice, so we need to
# remove the old one before devstack installs the new one.
# Using pip to uninstall the old code doesn't seem to work,
# so this script works a bit more aggressively. These steps
# should not be necessary for deployments using standard
# system packages from distributions.
local python_interpreter="python"
if python3_enabled; then
python_interpreter="python3"
fi
local sys_path=$($python_interpreter -c 'import sys; print(" ".join(sys.path))')
local sys_path_dir
local egg_link
local easy_file
for sys_path_dir in $sys_path; do
# Installing something in editable mode creates an "egg link"
# file that points to the location of the source files and
# metadata. When we do the upgrades for projects that preserve
# their name, the existing file is modified to point to the
# new location. In this case, heat's name is changing so we
# end up with a new file using the new name and the old one is
# untouched. We need to remove it ourselves.
egg_link="$sys_path_dir/heat.egg-link"
if [ -e "$egg_link" ]; then
sudo rm -f "$egg_link"
fi
# Installing a directory in editable mode adds the directory
# to the .pth file that setuptools manages. When we do the
# upgrades for projects that preserve their name, the old
# entry is automatically replaced with the new one. In this
# case, heat's name is changing, so setuptools doesn't figure
# out that it should remove the old entry, and we have to do
# it ourselves.
easy_file=$sys_path_dir/easy-install.pth
if [ -f $easy_file ]; then
sudo sed --in-place '/old\/heat/d' $easy_file
fi
done
## reset to previous state
$xtrace
}