diff options
Diffstat (limited to 'openstack/usr/share/openstack/modules/nova_manage')
-rw-r--r-- | openstack/usr/share/openstack/modules/nova_manage | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/openstack/usr/share/openstack/modules/nova_manage b/openstack/usr/share/openstack/modules/nova_manage new file mode 100644 index 00000000..6b1a297e --- /dev/null +++ b/openstack/usr/share/openstack/modules/nova_manage @@ -0,0 +1,93 @@ +#!/usr/bin/python +# -*- coding: utf-8 -*- + +DOCUMENTATION = ''' +--- +module: nova_manage +short_description: Initialize OpenStack Compute (nova) database +description: Create the tables for the database backend used by nova +options: + action: + description: + - action to perform. Currently only dbsync is supported + required: true +requirements: [ nova ] +''' + +EXAMPLES = ''' +nova_manage: action=dbsync +''' + +import subprocess + +try: + from nova.db.sqlalchemy import migration + from nova import config +except ImportError: + nova_found = False +else: + nova_found = True + + +def load_config_file(): + config.parse_args([]) + + +def will_db_change(): + """ Check if the database version will change after the sync. + + """ + # Load the config file options + current_version = migration.db_version() + repository = migration._find_migrate_repo() + repo_version = repository.latest + return current_version != repo_version + + +def do_dbsync(): + """Do the dbsync. Returns (returncode, stdout, stderr)""" + # We call nova-manage db_sync on the shell rather than trying to + # do this in Python since we have no guarantees about changes to the + # internals. + args = ['nova-manage', 'db', 'sync'] + + call = subprocess.Popen(args, shell=False, + stdout=subprocess.PIPE, stderr=subprocess.PIPE) + out, err = call.communicate() + return (call.returncode, out, err) + + +def main(): + + module = AnsibleModule( + argument_spec=dict( + action=dict(required=True), + ), + supports_check_mode=True + ) + + if not nova_found: + module.fail_json(msg="nova package could not be found") + + action = module.params['action'] + + if action not in ['dbsync', 'db_sync']: + module.fail_json(msg="Only supported action is 'dbsync'") + + load_config_file() + + changed = will_db_change() + if module.check_mode: + module.exit_json(changed=changed) + + (res, stdout, stderr) = do_dbsync() + + if res == 0: + module.exit_json(changed=changed, stdout=stdout, stderr=stderr) + else: + module.fail_json(msg="nova-manage returned non-zero value: %d" % res, + stdout=stdout, stderr=stderr) + +# this is magic, see lib/ansible/module_common.py +#<<INCLUDE_ANSIBLE_MODULE_COMMON>> +main() |