add code for config generation

Change-Id: Ib86b949bb43ca6b5c386b7032a255f06b0f2eab9

devstack/plugin.sh

@@ -161,10 +161,7 @@ function configure_ec2api {
     mkdir_chown_stack "$EC2API_CONF_DIR"
 
     # Generate ec2api configuration file and configure common parameters.
-    oslo-config-generator --namespace ec2api \
-                          --namespace oslo.db \
-                          --namespace oslo.messaging \
-                          > $EC2API_CONF_FILE
+    touch $EC2API_CONF_FILE
     cp $EC2API_DIR/etc/ec2api/api-paste.ini $EC2API_CONF_DIR
 
     cleanup_ec2api

ec2api/api/opts.py

@@ -0,0 +1,41 @@
+# 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.
+
+import itertools
+
+import ec2api.api
+import ec2api.api.auth
+import ec2api.api.availability_zone
+import ec2api.api.clients
+import ec2api.api.common
+import ec2api.api.dhcp_options
+import ec2api.api.ec2utils
+import ec2api.api.image
+import ec2api.api.instance
+
+
+def list_opts():
+    return [
+        ('DEFAULT',
+         itertools.chain(
+             ec2api.api.ec2_opts,
+             ec2api.api.auth.auth_opts,
+             ec2api.api.availability_zone.availability_zone_opts,
+             ec2api.api.clients.ec2_opts,
+             ec2api.api.common.ec2_opts,
+             ec2api.api.dhcp_options.ec2_opts,
+             ec2api.api.ec2utils.ec2_opts,
+             ec2api.api.image.s3_opts,
+             ec2api.api.image.rpcapi_opts,
+             ec2api.api.instance.ec2_opts,
+         )),
+    ]

ec2api/metadata/opts.py

@@ -0,0 +1,24 @@
+# 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.
+
+import itertools
+
+import ec2api.metadata
+
+
+def list_opts():
+    return [
+        ('metadata',
+         itertools.chain(
+             ec2api.metadata.metadata_opts,
+         )),
+    ]

ec2api/opts.py

@@ -0,0 +1,36 @@
+# 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.
+
+import itertools
+
+import ec2api.context
+import ec2api.db.api
+import ec2api.exception
+import ec2api.paths
+import ec2api.service
+import ec2api.utils
+import ec2api.wsgi
+
+
+def list_opts():
+    return [
+        ('DEFAULT',
+         itertools.chain(
+             ec2api.context.ec2_opts,
+             ec2api.db.api.tpool_opts,
+             ec2api.exception.exc_log_opts,
+             ec2api.paths.path_opts,
+             ec2api.service.service_opts,
+             ec2api.utils.utils_opts,
+             ec2api.wsgi.wsgi_opts,
+         )),
+    ]

ec2api/s3/opts.py

@@ -0,0 +1,24 @@
+# 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.
+
+import itertools
+
+import ec2api.s3.s3server
+
+
+def list_opts():
+    return [
+        ('DEFAULT',
+         itertools.chain(
+             ec2api.s3.s3server.s3_opts,
+         )),
+    ]

etc/ec2api/README-ec2api.conf.txt

@@ -0,0 +1,4 @@
+To generate the sample ec2api.conf file, run the following
+command from the top level of the ec2api directory:
+
+tox -egenconfig

etc/ec2api/ec2api-config-generator.conf

@@ -0,0 +1,12 @@
+[DEFAULT]
+output_file = etc/ec2api/ec2api.conf.sample
+wrap_width = 79
+namespace = ec2api
+namespace = ec2api.api
+namespace = ec2api.metadata
+namespace = ec2api.s3
+namespace = oslo.log
+namespace = oslo.messaging
+namespace = oslo.service.service
+namespace = oslo.db
+namespace = oslo.concurrency

setup.cfg

@@ -25,6 +25,12 @@ setup-hooks =
     pbr.hooks.setup_hook
 
 [entry_points]
+oslo.config.opts =
+    ec2api = ec2api.opts:list_opts
+    ec2api.api = ec2api.api.opts:list_opts
+    ec2api.metadata = ec2api.metadata.opts:list_opts
+    ec2api.s3 = ec2api.s3.opts:list_opts
+
 console_scripts =
     ec2-api=ec2api.cmd.api:main
     ec2-api-manage=ec2api.cmd.manage:main

tox.ini

@@ -26,6 +26,9 @@ sitepackages = False
 commands =
   flake8 {posargs}
 
+[testenv:genconfig]
+commands = oslo-config-generator --config-file=etc/ec2api/ec2api-config-generator.conf
+
 [testenv:cover]
 # Also do not run test_coverage_ext tests while gathering coverage as those
 # tests conflict with coverage.