Cloudify blueprint for provisioning ONAP

[oom.git] / cloudify / scripts / onap / create_resources_services.py

diff --git a/cloudify/scripts/onap/create_resources_services.py b/cloudify/scripts/onap/create_resources_services.py
new file mode 100644 (file)
index 0000000..8548e29
--- /dev/null
+++ b/cloudify/scripts/onap/create_resources_services.py
@@ -0,0 +1,131 @@
+import pip
+
+from cloudify import ctx
+
+
+SERVICES_FILE_PARTS_SEPARATOR = '---'
+
+
+def _import_or_install():
+    try:
+        import yaml
+    except ImportError:
+        pip.main(["install", "pyaml"])
+
+    try:
+        import cloudify_kubernetes.tasks as kubernetes_plugin
+    except ImportError:
+        pip.main([
+            "install",
+            "https://github.com/cloudify-incubator/cloudify-kubernetes-plugin/archive/1.2.1rc1.zip"
+        ])
+
+    try:
+        import jinja2
+    except ImportError:
+        pip.main(["install", "jinja2"])
+
+    import yaml
+    import jinja2
+    import cloudify_kubernetes.tasks as kubernetes_plugin
+
+    return yaml, kubernetes_plugin, jinja2
+
+
+def _init_jinja(jinja2):
+    return jinja2.Environment(
+        loader=jinja2.BaseLoader()
+    )
+
+
+def _render_template(jinja_env, template_content, values):
+    template_content = template_content.replace('.Values', 'Values')
+
+    template = jinja_env.from_string(template_content)
+    rendered_template = template.render(Values=values)
+    return rendered_template
+
+
+def _retrieve_resources_paths():
+    return ctx.node.properties.get('resources', [])
+
+
+def _retrieve_services_paths():
+    return ctx.node.properties.get('services', None)
+
+
+def _retrieve_values(yaml):
+    values_file_path = ctx.node.properties.get('values', None)
+
+    if values_file_path:
+        return yaml.load(ctx.get_resource(values_file_path))
+
+    ctx.logger.warn('Values file not found')
+
+
+def _save_deployment_result(key):
+    result = ctx.instance.runtime_properties['kubernetes']
+    ctx.instance.runtime_properties[key] = result
+    ctx.instance.runtime_properties['kubernetes'] = {}
+
+
+def _do_create_resources(kubernetes_plugin, yaml, jinja_env, values):
+    for path in _retrieve_resources_paths():
+        ctx.logger.info('Creating resource defined in: {0}'.format(path))
+
+        template_content = ctx.get_resource(path)
+        yaml_content = _render_template(
+            jinja_env,
+            template_content,
+            values
+        )
+        content = yaml.load(yaml_content)
+
+        kubernetes_plugin.resource_create(definition=content)
+        _save_deployment_result(
+            'resource_{0}'.format(content['metadata']['name'])
+        )
+
+    ctx.logger.info('Resources created successfully')
+
+
+def _do_create_services(kubernetes_plugin, yaml, jinja_env, values):
+    ctx.logger.info('Creating services')
+    services_file_path = _retrieve_services_paths()
+
+    if not services_file_path:
+        ctx.logger.warn(
+            'Service file is not defined. Skipping services provisioning !'
+        )
+
+        return
+
+    template_content = ctx.get_resource(services_file_path)
+    yaml_content = _render_template(
+        jinja_env,
+        template_content,
+        values
+    )
+
+    yaml_content_parts = \
+        yaml_content.split(SERVICES_FILE_PARTS_SEPARATOR)
+
+    for yaml_content_part in yaml_content_parts:
+        content = yaml.load(yaml_content_part)
+
+        kubernetes_plugin.resource_create(definition=content)
+        _save_deployment_result(
+            'service_{0}'.format(content['metadata']['name'])
+        )
+
+    ctx.logger.info('Services created successfully')
+
+
+if __name__ == '__main__':
+    yaml, kubernetes_plugin, jinja2 = _import_or_install()
+    jinja_env = _init_jinja(jinja2)
+    values = _retrieve_values(yaml)
+
+    _do_create_resources(kubernetes_plugin, yaml, jinja_env, values)
+    _do_create_services(kubernetes_plugin, yaml, jinja_env, values)
+