============= Configuration ============= OpenStackClient is primarily configured using command line options and environment variables. Most of those settings can also be placed into a configuration file to simplify managing multiple cloud configurations. There is a relationship between the global options, environment variables and keywords used in the configuration files that should make translation between these three areas simple. Most global options have a corresponding environment variable that may also be used to set the value. If both are present, the command-line option takes priority. The environment variable names are derived from the option name by dropping the leading dashes (--), converting each embedded dash (-) to an underscore (_), and converting to upper case. The keyword names in the configurations files are derived from the global option names by dropping the ``--os-`` prefix if present. Global Options -------------- The :doc:`openstack manpage ` lists all of the global options recognized by OpenStackClient and the default authentication plugins. Environment Variables --------------------- The :doc:`openstack manpage ` also lists all of the environment variables recognized by OpenStackClient and the default authentication plugins. Configuration Files ------------------- clouds.yaml ~~~~~~~~~~~ :file:`clouds.yaml` is a configuration file that contains everything needed to connect to one or more clouds. It may contain private information and is generally considered private to a user. OpenStackClient looks for a file called :file:`clouds.yaml` in the following locations: * current directory * :file:`~/.config/openstack` * :file:`/etc/openstack` The first file found wins. The keys match the :program:`openstack` global options but without the ``--os-`` prefix. :: clouds: devstack: auth: auth_url: http://192.168.122.10:35357/ project_name: demo username: demo password: 0penstack region_name: RegionOne ds-admin: auth: auth_url: http://192.168.122.10:35357/ project_name: admin username: admin password: 0penstack region_name: RegionOne infra: cloud: rackspace auth: project_id: 275610 username: openstack password: xyzpdq!lazydog region_name: DFW,ORD,IAD interface: internal In the above example, the ``auth_url`` for the ``rackspace`` cloud is taken from :file:`clouds-public.yaml` (see below). The first two entries are for two of the default users of the same DevStack cloud. The third entry is for a Rackspace Cloud Servers account. It is equivalent to the following options if the ``rackspace`` entry in :file:`clouds-public.yaml` (below) is present: :: --os-auth-url https://identity.api.rackspacecloud.com/v2.0/ --os-project-id 275610 --os-username openstack --os-password xyzpdq!lazydog --os-region-name DFW --os-interface internal and can be selected on the command line:: openstack --os-cloud infra server list Note that multiple regions are listed in the ``rackspace`` entry. An otherwise identical configuration is created for each region. If ``-os-region-name`` is not specified on the command line, the first region in the list is used by default. The selection of ``interface`` (as seen above in the ``rackspace`` entry) is optional. For this configuration to work, every service for this cloud instance must already be configured to support this type of interface. clouds-public.yaml ~~~~~~~~~~~~~~~~~~ :file:`clouds-public.yaml` is a configuration file that is intended to contain public information about clouds that are common across a large number of users. The idea is that :file:`clouds-public.yaml` could easily be shared among users to simplify public cloud configuration. Similar to :file:`clouds.yaml`, OpenStackClient looks for :file:`clouds-public.yaml` in the following locations: * current directory * :file:`~/.config/openstack` * :file:`/etc/openstack` The first file found wins. The keys here are referenced in :file:`clouds.yaml` ``cloud`` keys. Anything that appears in :file:`clouds.yaml` :: public-clouds: rackspace: auth: auth_url: 'https://identity.api.rackspacecloud.com/v2.0/' Debugging ~~~~~~~~~ You may find the :doc:`configuration show ` command helpful to debug configuration issues. It will display your current configuration. Logging Settings ---------------- By setting `log_level` or `log_file` in the configuration :file:`clouds.yaml`, a user may enable additional logging:: clouds: devstack: auth: auth_url: http://192.168.122.10:35357/ project_name: demo username: demo password: 0penstack region_name: RegionOne operation_log: logging: TRUE file: /tmp/openstackclient_demo.log level: info ds-admin: auth: auth_url: http://192.168.122.10:35357/ project_name: admin username: admin password: 0penstack region_name: RegionOne log_file: /tmp/openstackclient_admin.log log_level: debug :dfn:`log_file`: ```` Full path to logging file. :dfn:`log_level`: ``error`` | ``info`` | ``debug`` If log level is not set, ``warning`` will be used. If log level is ``info``, the following information is recorded: * cloud name * user name * project name * CLI start time (logging start time) * CLI end time * CLI arguments * CLI return value * and any ``info`` messages. If log level is ``debug``, the following information is recorded: * cloud name * user name * project name * CLI start time (logging start time) * CLI end time * CLI arguments * CLI return value * API request header/body * API response header/body * and any ``debug`` messages. When a command is executed, these logs are saved every time. Recording the user operations can help to identify resource changes and provide useful information for troubleshooting. If saving the output of a single command use the `--log-file` option instead. * `--log-file ` The logging level for `--log-file` can be set by using following options. * `-v, --verbose` * `-q, --quiet` * `--debug`