Update entrypoint logic to hack tox.ini for config generation

tools/gen-oslo-openstack-helm/Dockerfile

@@ -28,5 +28,6 @@ RUN set -x \
 
 COPY generate.py /opt/gen-oslo-openstack-helm/generate.py
 COPY entrypoint.sh /entrypoint.sh
+COPY oslo-config-generator /opt/gen-oslo-openstack-helm/oslo-config-generator
 
 ENTRYPOINT ["/entrypoint.sh"]

tools/gen-oslo-openstack-helm/entrypoint.sh

@@ -1,23 +1,47 @@
 #!/bin/bash
+
+# Copyright 2017 The Openstack-Helm Authors.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
 set -xe
 
+# Shallow clone the Project Repo and desired branch
 git clone --depth 1 --branch ${PROJECT_BRANCH} ${PROJECT_REPO} /tmp/${PROJECT}
-cd /tmp/${PROJECT}
 
+# Move into the project directory
+cd /tmp/${PROJECT}
 
+# Hack the tox.ini to load our oslo-config-generator script
 TOX_VENV_DIR=$(crudini --get tox.ini testenv:genconfig envdir | sed 's|^{toxworkdir}|.tox|')
-if [ -z "$TOX_VENV_DIR" ]
-then
-      TOX_VENV_DIR=".tox/genconfig"
+if [ -z "$TOX_VENV_DIR" ]; then
+  TOX_VENV_DIR=".tox/genconfig"
 fi
-GENCONFIG_FLAGS=$(crudini --get tox.ini testenv:genconfig commands | sed 's/^oslo-config-generator//')
+echo "mv -f /opt/gen-oslo-openstack-helm/oslo-config-generator $(pwd)/${TOX_VENV_DIR}/bin/oslo-config-generator" > /tmp/oslo-config-generator-cmds
+crudini --get tox.ini testenv:genconfig commands >> /tmp/oslo-config-generator-cmds
+crudini --set tox.ini testenv:genconfig commands "$(cat /tmp/oslo-config-generator-cmds)"
 
-tox -egenconfig
+# Setting up the whitelisted commands to include mv, letting us drop in the
+# hacked oslo-config-generator.
+(crudini --get tox.ini testenv:genconfig whitelist_externals > /tmp/whitelist_externals) || true
+echo "mv" >> /tmp/whitelist_externals
+crudini --set tox.ini testenv:genconfig whitelist_externals "$(cat /tmp/whitelist_externals)"
 
-source ${TOX_VENV_DIR}/bin/activate
+# Setting environment variables for OpenStack-Helm's oslo-config-generator args
+echo "HELM_CHART=${PROJECT}" > /opt/gen-oslo-openstack-helm-env
+echo "HELM_NAMESPACE=${PROJECT}" >> /opt/gen-oslo-openstack-helm-env
 
-python /opt/gen-oslo-openstack-helm/generate.py ${GENCONFIG_FLAGS} \
-    --helm_chart ${PROJECT} \
-    --helm_namespace ${PROJECT}
+# Run tox to generate the standard config files, and generate the venv
+tox -egenconfig
 
+# Drop into a shell in the container.
 bash

tools/gen-oslo-openstack-helm/oslo-config-generator

@@ -0,0 +1,23 @@
+#!/bin/bash
+
+# Copyright 2017 The Openstack-Helm Authors.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+set -xe
+
+source /opt/gen-oslo-openstack-helm-env
+
+python /opt/gen-oslo-openstack-helm/generate.py \
+    --helm_chart ${HELM_CHART} \
+    --helm_namespace ${HELM_NAMESPACE} \
+    "${@}"