Current version only supports Ansible.
It takes as input an empty charm with playbooks and generates
the following files:
- metadata.yaml
- layers.yaml
- reactive/<ansible_charm>.py
- actions.yaml
- actions/<action-name>
After that, it is only required to build the charm.
NOTE: In this version, it doesn't support parameters yet.
Change-Id: Ia771185a38421a04c1adcef4ded3d7a55fa164ee
Signed-off-by: Eduardo Sousa <esousa@whitestack.com>
--- /dev/null
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
+
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+ may provide additional or different license terms and conditions
+ for use, reproduction, or distribution of Your modifications, or
+ for any such Derivative Works as a whole, provided Your use,
+ reproduction, and distribution of the Work otherwise complies with
+ the conditions stated in this License.
+
+ 5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
+ by You to the Licensor shall be under the terms and conditions of
+ this License, without any additional terms or conditions.
+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
+ with Licensor regarding such Contributions.
+
+ 6. Trademarks. This License does not grant permission to use the trade
+ names, trademarks, service marks, or product names of the Licensor,
+ except as required for reasonable and customary use in describing the
+ origin of the Work and reproducing the content of the NOTICE file.
+
+ 7. Disclaimer of Warranty. Unless required by applicable law or
+ agreed to in writing, Licensor provides the Work (and each
+ Contributor provides its Contributions) on an "AS IS" BASIS,
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+ 8. Limitation of Liability. In no event and under no legal theory,
+ whether in tort (including negligence), contract, or otherwise,
+ unless required by applicable law (such as deliberate and grossly
+ negligent acts) or agreed to in writing, shall any Contributor be
+ liable to You for damages, including any direct, indirect, special,
+ incidental, or consequential damages of any character arising as a
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+ Work (including but not limited to damages for loss of goodwill,
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+ other commercial damages or losses), even if such Contributor
+ has been advised of the possibility of such damages.
+
+ 9. Accepting Warranty or Additional Liability. While redistributing
+ the Work or Derivative Works thereof, You may choose to offer,
+ and charge a fee for, acceptance of support, warranty, indemnity,
+ or other liability obligations and/or rights consistent with this
+ License. However, in accepting such obligations, You may act only
+ on Your own behalf and on Your sole responsibility, not on behalf
+ of any other Contributor, and only if You agree to indemnify,
+ defend, and hold each Contributor harmless for any liability
+ incurred by, or claims asserted against, such Contributor by reason
+ of your accepting any such warranty or additional liability.
+
+ END OF TERMS AND CONDITIONS
+
+ APPENDIX: How to apply the Apache License to your work.
+
+ To apply the Apache License to your work, attach the following
+ boilerplate notice, with the fields enclosed by brackets "[]"
+ replaced with your own identifying information. (Don't include
+ the brackets!) The text should be enclosed in the appropriate
+ comment syntax for the file format. We also recommend that a
+ file or class name and description of purpose be included on the
+ same "printed page" as the copyright notice for easier
+ identification within third-party archives.
+
+ Copyright 2019 Eduardo Sousa <esousa@whitestack.com>,
+ Gianpietro Lavado <glavado@whitestack.com>
+
+ 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.
--- /dev/null
+Charm Generator
+===============
+
+This tool was designed to help bootstrap the process of charm creation.
+It should help beginners to have a charm working in a matter of minutes.
+
+The charm generator takes as input an initialized charm and some scripts
+or description of HTTP requests and transforms it into a functional charm
+with all the metadata filled in.
+
+The main flow is the following:
+
+1) charm create <name of the charm>
+2) copy the scripts or the requests definition into a specific directory
+3) run the generator
+4) charm build
+
+What types of charms can be generated?
+--------------------------------------
+
+Currently, the Charm Generator only supports Ansible scripts.
+
+In the roadmap, the following charms are planned:
+
+* HTTP Requests
+* SOL002 Requests
+* Python Scripts
+
+How to run the Charm Generator?
+-------------------------------
+
+To run the Charm Generator, you should do the following steps:
+
+1) Download the OSM Devops git repository
+2) Install the requirements.txt
+3) Run the generator.py in the charm that you want to generate
+
+The only mandatory parameter is what type of charm you want to
+generate:
+
+* Ansible (--ansible)
+* HTTP Requests (--http) - not implemented
+* SOL002 Requests (--sol002) - not implemented
+* Python Scripts (--scripts) - not implemented
+
+There are some recommended parameters, such as:
+
+* Summary - summary of what the charm does (--summary)
+* Maintainer - the name and email of the maintainer (--maintainer)
+* Description - description of what the charm does (--description)
+* Company - company name to be include in the license headers (--company)
+* Email - email of the company/developer to be included in the license headers (--email)
+
+Specifics of the Ansible option
+-------------------------------
+
+In order to create an Ansible charm, you need to create a directory
+inside the charm and name it playbooks. Inside that directory, you
+should put all the playbooks that are going to be executed in the charm.
+
+Note: the playbooks extension must be .yaml
+
+Your charm should look like this before running the generator:
+
+~~~
+.
+├── config.yaml
+├── icon.svg
+├── layer.yaml
+├── metadata.yaml
+├── playbooks
+│ ├── pb-1.yaml
+│ ├── playbook2.yaml
+│ └── playbook_3.yaml
+├── reactive
+│ └── testch.py
+├── README.ex
+└── tests
+ ├── 00-setup
+ └── 10-deploy
+~~~
\ No newline at end of file
--- /dev/null
+# Copyright 2019 Whitestack, LLC
+#
+# 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.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: esousa@whitestack.com or glavado@whitestack.com
+##
--- /dev/null
+#!/usr/bin/env python3
+{#-
+# Copyright 2019 Whitestack, LLC
+#
+# 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.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: esousa@whitestack.com or glavado@whitestack.com
+-#}
+{%- if license is defined %}
+# Copyright {{ license.year }} {{ license.company }}
+#
+# 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.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: {{ license.email }}
+{%- endif %}
+
+import sys
+sys.path.append('lib')
+
+from charms.reactive import main
+from charms.reactive import set_state
+from charmhelpers.core.hookenv import action_fail, action_name
+
+"""
+`set_state` only works here because it's flushed to disk inside the `main()`
+loop. remove_state will need to be called inside the action method.
+"""
+set_state('actions.{}'.format(action_name()))
+
+try:
+ main()
+except Exception as e:
+ action_fail(repr(e))
+
--- /dev/null
+{#-
+# Copyright 2019 Whitestack, LLC
+#
+# 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.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: esousa@whitestack.com or glavado@whitestack.com
+-#}
+{%- if license is defined -%}
+# Copyright {{ license.year }} {{ license.company }}
+#
+# 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.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: {{ license.email }}
+{% endif %}
+
+{%- for act in actions %}
+{{ act.action_name }}:
+ description: "Insert description for this playbook."
+ {#- TODO: Insert parameters -#}
+ {#- TODO: Insert required -#}
+{% endfor %}
+
--- /dev/null
+# Copyright 2019 Whitestack, LLC
+#
+# 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.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: esousa@whitestack.com or glavado@whitestack.com
+##
--- /dev/null
+{#-
+# Copyright 2019 Whitestack, LLC
+#
+# 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.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: esousa@whitestack.com or glavado@whitestack.com
+-#}
+{%- if license is defined -%}
+# Copyright {{ license.year }} {{ license.company }}
+#
+# 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.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: {{ license.email }}
+{%- endif %}
+
+
+import sys
+import traceback
+
+from charmhelpers.core.hookenv import (
+ action_get,
+ action_fail,
+ action_set,
+ config,
+ status_set,
+)
+
+import charms.libansible
+
+from charms.reactive import (
+ remove_state as remove_flag,
+ set_state as set_flag,
+ when,
+)
+
+
+# Sets the status of the charm to show in OSM: configured
+@when('config.changed')
+def config_changed():
+ set_flag('{{ charm_name }}.configured')
+ status_set('active', 'ready!')
+ return
+
+
+# Edits ansible config files and executes ansible-playbook
+{% for pb in playbooks -%}
+@when('{{ charm_name }}.configured')
+@when('actions.{{ pb.action_name }}')
+def {{ pb.function_name }}():
+ try:
+ result = charms.libansible.execute_playbook('{{ pb.file }}')
+ except:
+ exc_type, exc_value, exc_traceback = sys.exc_info()
+ err = traceback.format_exception(exc_type, exc_value, exc_traceback)
+ action_fail('{{ pb.action_name }} failed: ' + str(err))
+ else:
+ action_set({'output': result})
+ finally:
+ remove_flag('actions.{{ pb.action_name }}')
+
+
+{% endfor -%}
\ No newline at end of file
--- /dev/null
+{#-
+# Copyright 2019 Whitestack, LLC
+#
+# 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.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: esousa@whitestack.com or glavado@whitestack.com
+-#}
+{%- if license is defined -%}
+# Copyright {{ license.year }} {{ license.company }}
+#
+# 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.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: {{ license.email }}
+{%- endif %}
+
+import fnmatch
+import os
+import yaml
+import subprocess
+
+from charmhelpers.core.hookenv import config
+
+
+def create_hosts(cfg, hosts):
+ inventory_path = '/etc/ansible/hosts'
+
+ with open(inventory_path, 'w') as f:
+ f.write('[{}]\n'.format(hosts))
+ h1 = '{0} ansible_connection=ssh ansible_ssh_user={1} ansible_ssh_pass={2} ' \
+ 'ansible_python_interpreter=/usr/bin/python3\n'.format(cfg['ssh-hostname'], cfg['ssh-username'],
+ cfg['ssh-password'])
+ f.write(h1)
+
+
+def create_ansible_cfg():
+ ansible_config_path = '/etc/ansible/ansible.cfg'
+
+ with open(ansible_config_path, 'w') as f:
+ f.write('[defaults]\n')
+ f.write('host_key_checking = False\n')
+
+
+# Function to find the playbook path
+def find(pattern, path):
+ result = ''
+ for root, dirs, files in os.walk(path):
+ for name in files:
+ if fnmatch.fnmatch(name, pattern):
+ result = os.path.join(root, name)
+ return result
+
+
+def execute_playbook(playbook_file, vars=None):
+ playbook_path = find(playbook_file, '/var/lib/juju/agents/')
+
+ cfg = config()
+
+ with open(playbook_path, 'r') as f:
+ playbook_data = yaml.load(f)
+
+ hosts = 'all'
+ if 'hosts' in playbook_data[0].keys() and playbook_data[0]['hosts']:
+ hosts = playbook_data[0]['hosts']
+
+ create_ansible_cfg()
+ create_hosts(cfg, hosts)
+
+ call = ['ansible-playbook', playbook_path]
+ result = subprocess.check_output(call)
+
+ return result
--- /dev/null
+{#-
+# Copyright 2019 Whitestack, LLC
+#
+# 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.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: esousa@whitestack.com or glavado@whitestack.com
+-#}
+{%- if license is defined -%}
+# Copyright {{ license.year }} {{ license.company }}
+#
+# 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.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: {{ license.email }}
+{%- endif %}
+
+includes:
+{% for lr in layers -%}
+- "layer:{{ lr.name }}"
+{% endfor -%}
+options:
+{%- for lr in layers if lr.options is defined %}
+ {{ lr.name }}:
+ {%- for op in lr.options %}
+ {{ op.name }}: {{ op.value }}
+ {%- endfor -%}
+{% endfor %}
+
--- /dev/null
+# Copyright 2019 Whitestack, LLC
+#
+# 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.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: esousa@whitestack.com or glavado@whitestack.com
+##
+
+import argparse
+import logging
+import sys
+
+from datetime import datetime
+
+from generators.ansible_generator import AnsibleGenerator
+
+
+def configure_logger(args):
+ global logger
+ logger = logging.getLogger()
+
+ if args.verbose:
+ logger.setLevel(logging.DEBUG)
+ else:
+ logger.setLevel(logging.INFO)
+
+ handler = logging.StreamHandler(sys.stdout)
+
+ if args.verbose:
+ handler.setLevel(logging.DEBUG)
+ else:
+ handler.setLevel(logging.INFO)
+
+ formatter = logging.Formatter('[%(levelname)s] %(message)s')
+ handler.setFormatter(formatter)
+ logger.addHandler(handler)
+
+
+def verify_environment(args):
+ pass
+
+
+def input_processing():
+ parser = argparse.ArgumentParser(description='Charm generator for OSM VNFs')
+
+ # Setting logger from INFO to DEBUG
+ parser.add_argument('-v', '--verbose', required=False, action='store_true',
+ help='increase output verbosity')
+
+ # Backend selection
+ backend_parser = parser.add_mutually_exclusive_group(required=True)
+
+ backend_parser.add_argument('--ansible', action='store_true',
+ help='generate an Ansible charm')
+ backend_parser.add_argument('--http', action='store_true',
+ help='generate a HTTP charm')
+ backend_parser.add_argument('--sol002', action='store_true',
+ help='generate a SOL002 charm')
+ backend_parser.add_argument('--scripts', action='store_true',
+ help='generate a Scripts charm')
+
+ # Metadata inputs
+ metadata_parser = parser.add_argument_group('metadata')
+
+ metadata_parser.add_argument('--summary', required=False, action='store',
+ help='summary to be included in the metadata.yaml')
+ metadata_parser.add_argument('--maintainer', required=False, action='store',
+ help='maintainer information to be included in the metadata.yaml')
+ metadata_parser.add_argument('--description', required=False, action='store',
+ help='description to be included in the metadata.yaml')
+
+ # License header inputs
+ license_header_group = parser.add_argument_group('license_header')
+
+ license_header_group.add_argument('--company', required=False, action='store',
+ help='company name to be included in the license headers')
+ license_header_group.add_argument('--email', required=False, action='store',
+ help='email to be included in the license headers')
+
+ return parser.parse_args()
+
+
+def process_args(args):
+ # Metadata information for metadata.yaml
+ metadata = {}
+
+ if args.summary:
+ metadata['summary'] = args.summary
+ if args.maintainer:
+ metadata['maintainer'] = args.maintainer
+ if args.description:
+ metadata['description'] = args.description
+
+ # Information for license headers
+ license = {
+ 'year': datetime.now().year
+ }
+
+ if args.company:
+ license['company'] = args.company
+ if args.email:
+ license['email'] = args.email
+
+ # Options to configure the backends
+ options = {
+ 'backend': None
+ }
+
+ if args.ansible:
+ options['backend'] = 'ansible'
+ elif args.http:
+ options['backend'] = 'http'
+ elif args.sol002:
+ options['backend'] = 'sol002'
+ elif args.scripts:
+ options['backend'] = 'scripts'
+
+ return metadata, license, options
+
+
+def main():
+ # getting the input from the user
+ args = input_processing()
+
+ # configure the logger
+ configure_logger(args)
+
+ logger.info('Starting generation process...')
+
+ # verify if the environment is correct and the args are valid
+ verify_environment(args)
+
+ # process data to input in generator
+ metadata, license, options = process_args(args)
+
+ logger.debug('Metadata: %s', metadata)
+ logger.debug('License: %s', license)
+ logger.debug('Options: %s', options)
+
+ if options['backend'] == 'ansible':
+ generator = AnsibleGenerator(metadata=metadata, license=license, options=options)
+ elif options['backend'] == 'http':
+ logger.error('HTTP backend not yet available. Available backends are: ansible')
+ sys.exit(-1)
+ elif options['backend'] == 'sol002':
+ logger.error('SOL002 backend not yet available. Available backends are: ansible')
+ sys.exit(-1)
+ elif options['backend'] == 'scripts':
+ logger.error('Scripts backend not yet available. Available backends are: ansible')
+ sys.exit(-1)
+ else:
+ logger.error('Undefined backend for generator. Available backends are: ansible')
+ sys.exit(-1)
+
+ generator.generate()
+
+ logger.info('Generation process complete.')
+
+
+if __name__ == "__main__":
+ main()
--- /dev/null
+# Copyright 2019 Whitestack, LLC
+#
+# 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.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: esousa@whitestack.com or glavado@whitestack.com
+##
--- /dev/null
+# Copyright 2019 Whitestack, LLC
+#
+# 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.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: esousa@whitestack.com or glavado@whitestack.com
+##
+
+import functools
+import logging
+import os
+import stat
+
+from jinja2 import Environment, PackageLoader
+
+
+class ActionsGenerator:
+ LOGGER = logging.getLogger()
+ ENV = Environment(loader=PackageLoader('actions', 'templates'))
+
+ def __init__(self, metadata, actions, license=None, options=None):
+ """
+ Creates the object to generate the actions folder, actions files and actions.yaml.
+
+ Usage should be:
+
+ 1) Create the object.
+ 2) Run the generate method.
+
+ :param metadata: metadata information about the charm being generated.
+ :param actions: actions to be included in the charm.
+ :param license: information license to included in the charm being generated.
+ :param options: options to override the normal flow.
+ """
+ self.path = os.getcwd()
+ self.metadata = metadata
+ self.actions = actions
+ self.license = license
+ self.options = options
+
+ def generate(self):
+ """
+ Generates the actions folder, actions files and actions.yaml.
+ """
+ ActionsGenerator.LOGGER.info('Generating the actions...')
+
+ self._create_actions_folder()
+
+ for action in self.actions:
+ self._generate_action_file(action)
+
+ self._generate_actions_yaml_file()
+
+ ActionsGenerator.LOGGER.info('Generated the actions.')
+
+ def _create_actions_folder(self):
+ """
+ Creates the actions folder, where all the action files are placed.
+ These files are the entry point for the execution of the actions.
+ """
+ ActionsGenerator.LOGGER.debug('Creating the actions folder...')
+
+ actions_path = self.path + '/actions'
+
+ if not os.path.isdir(actions_path):
+ os.mkdir(actions_path)
+ else:
+ ActionsGenerator.LOGGER.warning('Actions folder already exists.')
+ return
+
+ ActionsGenerator.LOGGER.debug('Created actions folder.')
+
+ def _generate_action_file(self, action):
+ """
+ Generates the action file to act as entry point for a specific action.
+
+ Note: the action file is made executable during this function.
+
+ :param action: dictionary with information about the action
+ """
+ ActionsGenerator.LOGGER.debug('Creating action file: %s...', action['action_name'])
+
+ playbook_path = self.path + ('/actions/%s' % action['action_name'])
+ action_file_template = ActionsGenerator.ENV.get_template('action.j2')
+
+ with open(playbook_path, "w") as f:
+ f.write(action_file_template.render(license=self.license))
+ mode = os.fstat(f.fileno()).st_mode
+ mode |= stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH
+ os.fchmod(f.fileno(), stat.S_IMODE(mode))
+
+ ActionsGenerator.LOGGER.debug('Created action file: %s.', action['action_name'])
+
+ def _generate_actions_yaml_file(self):
+ """
+ Generates the actions.yaml file from a template.
+ It takes all the playbook information and fills in the templates.
+
+ Note: renames the old actions.yaml file with a .bkp extension, so the history is preserved.
+ """
+ ActionsGenerator.LOGGER.debug('Creating actions.yaml...')
+
+ actions_yaml_path = self.path + '/actions.yaml'
+ actions_template = ActionsGenerator.ENV.get_template('actions.yaml.j2')
+
+ if os.path.isfile(actions_yaml_path):
+ ids = [int(f.split('.')[-1]) for f in os.listdir(self.path) if f.startswith('actions.yaml.bkp')]
+
+ id = 0
+ if ids:
+ id = functools.reduce(lambda x, y: x if (x > y) else y, ids)
+ id += 1
+
+ backup_actions_yaml_path = self.path + ('/actions.yaml.bkp.%02d' % id)
+ os.rename(actions_yaml_path, backup_actions_yaml_path)
+
+ with open(actions_yaml_path, 'w') as f:
+ f.write(actions_template.render(actions=self.actions, license=self.license))
+
+ ActionsGenerator.LOGGER.debug('Created actions.yaml.')
--- /dev/null
+# Copyright 2019 Whitestack, LLC
+#
+# 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.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: esousa@whitestack.com or glavado@whitestack.com
+##
+
+import functools
+import logging
+import os
+import sys
+
+from jinja2 import Environment, PackageLoader
+
+from generators.actions_generator import ActionsGenerator
+from generators.metadata_generator import MetadataGenerator
+
+
+class AnsibleGenerator:
+ LOGGER = logging.getLogger()
+ ENV = Environment(loader=PackageLoader('ansible-charm', 'templates'))
+
+ def __init__(self, metadata, license=None, options=None):
+ """
+ Creates the object to generate the ansible charm from templates.
+
+ Usage should be:
+
+ 1) Create the object.
+ 2) Run the generate method.
+
+ :param metadata: metadata information about the charm being generated.
+ :param license: information license to included in the charm being generated.
+ :param options: options to override the normal flow.
+ """
+ self.path = os.getcwd()
+ self.metadata = metadata
+ self.license = license
+ self.options = options
+ self.playbooks = AnsibleGenerator._fetch_all_playbooks(self.path)
+
+ playbooks_name = [playbook['file'] for playbook in self.playbooks]
+ AnsibleGenerator.LOGGER.debug('Playbooks found: %s', playbooks_name)
+
+ self.metadata_generator = MetadataGenerator(metadata=self.metadata, license=self.license, options=self.options)
+ self.actions_generator = ActionsGenerator(metadata=self.metadata, actions=self.playbooks, license=self.license,
+ options=self.options)
+
+ def generate(self):
+ """
+ Generates the Ansible Charm using templates.
+ """
+ AnsibleGenerator.LOGGER.info('Generating the Ansible Charm...')
+
+ # Generating metadata.yaml
+ self.metadata_generator.generate()
+ self.metadata = self.metadata_generator.get_metadata()
+
+ # Generating actions
+ self.actions_generator.generate()
+
+ self._generate_ansible_lib()
+ self._generate_layer_yaml_file()
+ self._generate_reactive_file()
+
+ AnsibleGenerator.LOGGER.info('Generated the Ansible Charm.')
+
+ @staticmethod
+ def _fetch_all_playbooks(path):
+ """
+ Walks over the playbooks directory, fetches the playbook's name.
+ It takes the file name and normalizes it to be used in the ansible charm.
+
+ :param path: path of the root of the charm.
+ :return: a list of dictionaries with the information about the playbooks.
+ """
+ playbooks_path = path + '/playbooks'
+
+ if os.path.isdir(playbooks_path) and len(os.listdir(playbooks_path)) != 0:
+ filenames = os.listdir(playbooks_path)
+
+ result = []
+ for file in filenames:
+ info = {
+ 'action_name': file.replace('_', '-').replace('.yaml', ''),
+ 'function_name': file.replace('-', '_').replace('.yaml', ''),
+ 'file': file
+ }
+ result.append(info)
+
+ return result
+ else:
+ AnsibleGenerator.LOGGER.error('Playbooks directory should exist and be populated.')
+ sys.exit(-1)
+
+ def _generate_ansible_lib(self):
+ """
+ Generates the ansible lib file from a template.
+ """
+ AnsibleGenerator.LOGGER.debug('Creating ansible.py lib...')
+
+ lib_folder_path = self.path + '/lib/charms'
+ ansible_lib_path = lib_folder_path + '/libansible.py'
+
+ if not os.path.isdir(lib_folder_path):
+ os.makedirs(lib_folder_path)
+
+ ansible_lib_template = AnsibleGenerator.ENV.get_template('ansible_lib.py.j2')
+
+ with open(ansible_lib_path, 'w') as f:
+ f.write(ansible_lib_template.render(license=self.license))
+
+ AnsibleGenerator.LOGGER.debug('Created anisble.py lib.')
+
+ def _generate_layer_yaml_file(self):
+ """
+ Generates the layer.yaml file from a template.
+
+ Note: disables the venv environment.
+ """
+ AnsibleGenerator.LOGGER.debug('Creating layer.yaml...')
+
+ layer_yaml_path = self.path + '/layer.yaml'
+
+ layers = [{
+ 'name': 'basic',
+ 'options': [{
+ 'name': 'use_venv',
+ 'value': 'false'
+ }]}, {
+ 'name': 'ansible-base'
+ }, {
+ 'name': 'vnfproxy'
+ }]
+
+ layer_template = AnsibleGenerator.ENV.get_template('layer.yaml.j2')
+
+ with open(layer_yaml_path, 'w') as f:
+ f.write(layer_template.render(layers=layers, license=self.license))
+
+ AnsibleGenerator.LOGGER.debug('Created layer.yaml.')
+
+ def _generate_reactive_file(self):
+ """
+ Generates the Ansible reactive file from a template.
+ It takes all the playbook information and fills in the templates.
+
+ Note: renames the old charm file with a .bkp extension, so the history is preserved.
+ """
+ AnsibleGenerator.LOGGER.debug('Creating ansible charm: %s...', self.metadata['file'])
+
+ reactive_folder_path = self.path + '/reactive'
+ charm_file_path = reactive_folder_path + ('/%s' % self.metadata['file'])
+ ansible_charm_template = AnsibleGenerator.ENV.get_template('ansible_charm.py.j2')
+
+ ids = [int(f.split('.')[-1]) for f in os.listdir(reactive_folder_path)
+ if f.startswith('%s.bkp' % self.metadata['file'])]
+
+ id = 0
+ if ids:
+ id = functools.reduce(lambda x, y: x if (x > y) else y, ids)
+ id += 1
+
+ backup_charm_file_path = reactive_folder_path + ('/%s.bkp.%02d' % (self.metadata['file'], id))
+ os.rename(charm_file_path, backup_charm_file_path)
+
+ with open(charm_file_path, 'w') as f:
+ f.write(ansible_charm_template.render(charm_name=self.metadata['name'], playbooks=self.playbooks,
+ license=self.license))
+
+ AnsibleGenerator.LOGGER.debug('Created ansible charm: %s.', self.metadata['file'])
--- /dev/null
+# Copyright 2019 Whitestack, LLC
+#
+# 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.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: esousa@whitestack.com or glavado@whitestack.com
+##
+
+import functools
+import logging
+import os
+import sys
+
+import yaml
+
+from jinja2 import Environment, PackageLoader
+
+
+class MetadataGenerator:
+ LOGGER = logging.getLogger()
+ ENV = Environment(loader=PackageLoader('metadata', 'templates'))
+
+ def __init__(self, metadata, license=None, options=None):
+ """
+ Creates the object to generate the metadata.yaml file from a template.
+
+ Usage should be:
+
+ 1) Create the object.
+ 2) Run the generate method.
+
+ :param metadata: metadata information about the charm being generated.
+ :param license: information license to included in the charm being generated.
+ :param options: options to override the normal flow.
+ """
+ self.path = os.getcwd()
+ self.metadata = metadata
+ self.license = license
+ self.options = options
+
+ def generate(self):
+ """
+ Generates the metadata.yaml using templates.
+ """
+ MetadataGenerator.LOGGER.info('Generating the metadata.yaml...')
+
+ standard_metadata = self._read_metadata_yaml()
+ self._update_metadata(standard_metadata)
+ self._rename_metadata_yaml_as_backup()
+ self._write_metadata_yaml()
+
+ MetadataGenerator.LOGGER.info('Generated the metadata.yaml.')
+
+ def get_metadata(self):
+ """
+ Gets the enhanced metadata.
+
+ :return: the enhanced metadata dictionary.
+ """
+ return self.metadata
+
+ def _read_metadata_yaml(self):
+ """
+ Reads the values from the old metadata.yaml and does a cleanup on undesired values.
+ """
+ MetadataGenerator.LOGGER.debug('Reading old metadata.yaml...')
+
+ metadata_yaml_path = self.path + '/metadata.yaml'
+
+ if not os.path.isfile(metadata_yaml_path):
+ MetadataGenerator.LOGGER.error('metadata.yaml must be present. Must be run in the root of the charm')
+ sys.exit(-1)
+
+ with open(metadata_yaml_path, 'r') as f:
+ metadata = yaml.load(f)
+
+ if 'tags' in metadata.keys():
+ del metadata['tags']
+ if 'provides' in metadata.keys():
+ del metadata['provides']
+ if 'requires' in metadata.keys():
+ del metadata['requires']
+ if 'peers' in metadata.keys():
+ del metadata['peers']
+
+ MetadataGenerator.LOGGER.debug('Read old metadata.yaml.')
+
+ return metadata
+
+ def _update_metadata(self, metadata):
+ """
+ Update internal metadata before writing the new metadata.yaml.
+
+ :param metadata: metadata values provided by the user.
+ """
+ MetadataGenerator.LOGGER.debug('Generating the Ansible Charm...')
+
+ if 'name' in metadata:
+ self.metadata['name'] = metadata['name']
+ self.metadata['file'] = '%s.py' % metadata['name'].replace('-', '_')
+
+ self.metadata['subordinate'] = False
+ self.metadata['tags'] = ['misc', 'osm', 'vnf']
+ self.metadata['series'] = ['xenial', 'trusty']
+
+ MetadataGenerator.LOGGER.debug('Generating the Ansible Charm...')
+
+ def _rename_metadata_yaml_as_backup(self):
+ """
+ Renames the metadata.yaml to metadata.yaml.bkp.*.
+ Preserves the history of the charm for the user.
+ """
+ MetadataGenerator.LOGGER.debug('Renaming the metadata.yaml to .bkp.*...')
+
+ metadata_yaml_path = self.path + '/metadata.yaml'
+
+ ids = [int(f.split('.')[-1]) for f in os.listdir(self.path)
+ if f.startswith('metadata.yaml.bkp')]
+
+ id = 0
+ if ids:
+ id = functools.reduce(lambda x, y: x if (x > y) else y, ids)
+ id += 1
+
+ backup_metadata_yaml_path = self.path + ('/metadata.yaml.bkp.%02d' % id)
+ os.rename(metadata_yaml_path, backup_metadata_yaml_path)
+
+ MetadataGenerator.LOGGER.debug('Renamed the metadata.yaml to .bkp.%02d.', id)
+
+ def _write_metadata_yaml(self):
+ """
+ Writes the enriched metadata to metadata.yaml.
+ """
+ MetadataGenerator.LOGGER.debug('Generating metadata.yaml...')
+
+ metadata_yaml_path = self.path + '/metadata.yaml'
+ metadata_yaml_template = MetadataGenerator.ENV.get_template('metadata.yaml.j2')
+
+ with open(metadata_yaml_path, 'w') as f:
+ f.write(metadata_yaml_template.render(metadata=self.metadata, license=self.license))
+
+ MetadataGenerator.LOGGER.debug('Generated metadata.yaml.')
--- /dev/null
+# Copyright 2019 Whitestack, LLC
+#
+# 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.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: esousa@whitestack.com or glavado@whitestack.com
+##
--- /dev/null
+{#-
+# Copyright 2019 Whitestack, LLC
+#
+# 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.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: esousa@whitestack.com or glavado@whitestack.com
+-#}
+{%- if license is defined -%}
+# Copyright {{ license.year }} {{ license.company }}
+#
+# 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.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: {{ license.email }}
+{%- endif %}
+
+name: {{ metadata.name }}
+summary: {{ metadata.summary }}
+maintainer: {{ metadata.maintainer }}
+description: {{ metadata.description }}
+tags:
+{% for tag in metadata.tags -%}
+- {{ tag }}
+{% endfor -%}
+series:
+{% for serie in metadata.series -%}
+- {{ serie }}
+{% endfor -%}
+subordinate: {{ metadata.subordinate }}
--- /dev/null
+Jinja2==2.10