Add user_data/cloud-init support for scaleway_compute module (#42697)

lib/ansible/modules/cloud/scaleway/scaleway_user_data.py

@@ -0,0 +1,170 @@
+#!/usr/bin/python
+#
+# Scaleway user data management module
+#
+# Copyright (C) 2018 Online SAS.
+# https://www.scaleway.com
+#
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+from __future__ import absolute_import, division, print_function
+
+__metaclass__ = type
+
+ANSIBLE_METADATA = {
+    'metadata_version': '1.1',
+    'status': ['preview'],
+    'supported_by': 'community'
+}
+
+
+DOCUMENTATION = '''
+---
+module: scaleway_user_data
+short_description: Scaleway user_data management module
+version_added: "2.8"
+author: Remy Leone (@sieben)
+description:
+    - "This module manages user_data on compute instances on Scaleway."
+    - "It can be used to configure cloud-init for instance"
+extends_documentation_fragment: scaleway
+
+options:
+
+  server_id:
+    description:
+    - Scaleway Compute instance ID of the server
+    required: true
+
+  user_data:
+    description:
+    - User defined data. Typically used with `cloud-init`.
+    - Pass your cloud-init script here as a string
+    required: false
+
+  region:
+    description:
+    - Scaleway compute zone
+    required: true
+    choices:
+      - ams1
+      - EMEA-NL-EVS
+      - par1
+      - EMEA-FR-PAR1
+'''
+
+EXAMPLES = '''
+- name: Update the cloud-init
+  scaleway_user_data:
+    server_id: '5a33b4ab-57dd-4eb6-8b0a-d95eb63492ce'
+    region: ams1
+    user_data:
+      cloud-init: 'final_message: "Hello World!"'
+'''
+
+RETURN = '''
+'''
+
+from ansible.module_utils.basic import AnsibleModule
+from ansible.module_utils.scaleway import SCALEWAY_LOCATION, scaleway_argument_spec, Scaleway
+
+
+def patch_user_data(compute_api, server_id, key, value):
+    compute_api.module.debug("Starting patching user_data attributes")
+
+    path = "servers/%s/user_data/%s" % (server_id, key)
+    response = compute_api.patch(path=path, data=value, headers={"Content-type": "text/plain"})
+    if not response.ok:
+        msg = 'Error during user_data patching: %s %s' % (response.status_code, response.body)
+        compute_api.module.fail_json(msg=msg)
+
+    return response
+
+
+def delete_user_data(compute_api, server_id, key):
+    compute_api.module.debug("Starting deleting user_data attributes: %s" % key)
+
+    response = compute_api.delete(path="servers/%s/user_data/%s" % (server_id, key))
+
+    if not response.ok:
+        msg = 'Error during user_data deleting: (%s) %s' % response.status_code, response.body
+        compute_api.module.fail_json(msg=msg)
+
+    return response
+
+
+def get_user_data(compute_api, server_id, key):
+    compute_api.module.debug("Starting patching user_data attributes")
+
+    path = "servers/%s/user_data/%s" % (server_id, key)
+    response = compute_api.get(path=path)
+    if not response.ok:
+        msg = 'Error during user_data patching: %s %s' % (response.status_code, response.body)
+        compute_api.module.fail_json(msg=msg)
+
+    return response.json
+
+
+def core(module):
+    region = module.params["region"]
+    server_id = module.params["server_id"]
+    user_data = module.params["user_data"]
+    changed = False
+
+    module.params['api_url'] = SCALEWAY_LOCATION[region]["api_endpoint"]
+    compute_api = Scaleway(module=module)
+
+    user_data_list = compute_api.get(path="servers/%s/user_data" % server_id)
+    if not user_data_list.ok:
+        msg = 'Error during user_data fetching: %s %s' % user_data_list.status_code, user_data_list.body
+        compute_api.module.fail_json(msg=msg)
+
+    present_user_data_keys = user_data_list.json["user_data"]
+    present_user_data = dict(
+        (key, get_user_data(compute_api=compute_api, server_id=server_id, key=key))
+        for key in present_user_data_keys
+    )
+
+    if present_user_data == user_data:
+        module.exit_json(changed=changed, msg=user_data_list.json)
+
+    # First we remove keys that are not defined in the wished user_data
+    for key in present_user_data:
+        if key not in user_data:
+
+            changed = True
+            if compute_api.module.check_mode:
+                module.exit_json(changed=changed, msg={"status": "User-data of %s would be patched." % server_id})
+
+            delete_user_data(compute_api=compute_api, server_id=server_id, key=key)
+
+    # Then we patch keys that are different
+    for key, value in user_data.items():
+        if key not in present_user_data or user_data[key] != present_user_data[key]:
+
+            changed = True
+            if compute_api.module.check_mode:
+                module.exit_json(changed=changed, msg={"status": "User-data of %s would be patched." % server_id})
+
+            patch_user_data(compute_api=compute_api, server_id=server_id, key=key, value=value)
+
+    module.exit_json(changed=changed, msg=user_data)
+
+
+def main():
+    argument_spec = scaleway_argument_spec()
+    argument_spec.update(dict(
+        region=dict(required=True, choices=SCALEWAY_LOCATION.keys()),
+        user_data=dict(type="dict"),
+        server_id=dict(required=True),
+    ))
+    module = AnsibleModule(
+        argument_spec=argument_spec,
+        supports_check_mode=True,
+    )
+
+    core(module)
+
+
+if __name__ == '__main__':
+    main()