python-novaclient 2.17.0

Command-line API

Installing this package gets you a shell command, nova, that you can use to interact with any OpenStack cloud.

You’ll need to provide your OpenStack username and password. You can do this with the --os-username, --os-password and --os-tenant-name params, but it’s easier to just set them as environment variables:

export OS_USERNAME=openstack
export OS_PASSWORD=yadayada
export OS_TENANT_NAME=myproject

You will also need to define the authentication url with --os-auth-url and the version of the API with --os-compute-api-version. Or set them as an environment variables as well:

export OS_AUTH_URL=http://example.com:8774/v1.1/
export OS_COMPUTE_API_VERSION=1.1

If you are using Keystone, you need to set the OS_AUTH_URL to the keystone endpoint:

export OS_AUTH_URL=http://example.com:5000/v2.0/

Since Keystone can return multiple regions in the Service Catalog, you can specify the one you want with --os-region-name (or export OS_REGION_NAME). It defaults to the first in the list returned.

You’ll find complete documentation on the shell by running nova help:

usage: nova [--debug] [--no-cache] [--timings]
            [--os-username <auth-user-name>] [--os-password <auth-password>]
            [--os-tenant-name <auth-tenant-name>] [--os-auth-url <auth-url>]
            [--os-region-name <region-name>] [--os-auth-system <auth-system>]
            [--service-type <service-type>] [--service-name <service-name>]
            [--volume-service-name <volume-service-type>]
            [--endpoint-type <endpoint-type>]
            [--os-compute-api-version <compute-api-ver>] [--insecure]
            [--bypass-url <bypass-url>]
            <subcommand> ...

Command-line interface to the OpenStack Nova API.

Positional arguments:
  <subcommand>
    absolute-limits     Print a list of absolute limits for a user
    actions             Retrieve server actions.
    add-fixed-ip        Add new IP address to network.
    add-floating-ip     Add a floating IP address to a server.
    aggregate-add-host  Add the host to the specified aggregate.
    aggregate-create    Create a new aggregate with the specified details.
    aggregate-delete    Delete the aggregate by its id.
    aggregate-details   Show details of the specified aggregate.
    aggregate-list      Print a list of all aggregates.
    aggregate-remove-host
                        Remove the specified host from the specified aggregate.
    aggregate-set-metadata
                        Update the metadata associated with the aggregate.
    aggregate-update    Update the aggregate's name and optionally
                        availability zone.
    boot                Boot a new server.
    console-log         Get console log output of a server.
    credentials         Show user credentials returned from auth
    delete              Immediately shut down and delete a server.
    describe-resource   Show details about a resource
    diagnostics         Retrieve server diagnostics.
    dns-create          Create a DNS entry for domain, name and ip.
    dns-create-private-domain
                        Create the specified DNS domain.
    dns-create-public-domain
                        Create the specified DNS domain.
    dns-delete          Delete the specified DNS entry.
    dns-delete-domain   Delete the specified DNS domain.
    dns-domains         Print a list of available dns domains.
    dns-list            List current DNS entries for domain and ip or domain
                        and name.
    endpoints           Discover endpoints that get returned from the
                        authenticate services
    evacuate            Evacuate a server from failed host
    flavor-create       Create a new flavor.
    flavor-delete       Delete a specific flavor.
    flavor-list         Print a list of available 'flavors' (sizes of
                        servers).
    flavor-show         Show details about the given flavor.
    flavor-key          Set or unset extra_spec for a flavor.
    flavor-access-list  Print access information about the given flavor.
    flavor-access-add   Add flavor access for the given tenant.
    flavor-access-remove
                        Remove flavor access for the given tenant.
    floating-ip-create  Allocate a floating IP for the current tenant.
    floating-ip-delete  De-allocate a floating IP.
    floating-ip-list    List floating ips for this tenant.
    floating-ip-pool-list
                        List all floating ip pools.
    get-vnc-console     Get a vnc console to a server.
    get-spice-console   Get a spice console to a server.
    host-action         Perform a power action on a host.
    host-update         Update host settings.
    image-create        Create a new image by taking a snapshot of a running
                        server.
    image-delete        Delete an image.
    image-list          Print a list of available images to boot from.
    image-meta          Set or Delete metadata on an image.
    image-show          Show details about the given image.
    keypair-add         Create a new key pair for use with instances
    keypair-delete      Delete keypair by its name
    keypair-list        Print a list of keypairs for a user
    list                List active servers.
    live-migration      Migrates a running instance to a new machine.
    lock                Lock a server.
    meta                Set or Delete metadata on a server.
    migrate             Migrate a server.
    pause               Pause a server.
    rate-limits         Print a list of rate limits for a user
    reboot              Reboot a server.
    rebuild             Shutdown, re-image, and re-boot a server.
    refresh-network     Refresh server network information.
    remove-fixed-ip     Remove an IP address from a server.
    remove-floating-ip  Remove a floating IP address from a server.
    rename              Rename a server.
    rescue              Rescue a server.
    resize              Resize a server.
    resize-confirm      Confirm a previous resize.
    resize-revert       Revert a previous resize (and return to the previous
                        VM).
    resume              Resume a server.
    root-password       Change the root password for a server.
    secgroup-add-group-rule
                        Add a source group rule to a security group.
    secgroup-add-rule   Add a rule to a security group.
    secgroup-create     Create a security group.
    secgroup-update     Update a security group.
    secgroup-delete     Delete a security group.
    secgroup-delete-group-rule
                        Delete a source group rule from a security group.
    secgroup-delete-rule
                        Delete a rule from a security group.
    secgroup-list       List security groups for the curent tenant.
    secgroup-list-rules
                        List rules for a security group.
    show                Show details about the given server.
    ssh                 SSH into a server.
    start               Start a server.
    stop                Stop a server.
    suspend             Suspend a server.
    unlock              Unlock a server.
    unpause             Unpause a server.
    unrescue            Unrescue a server.
    usage-list          List usage data for all tenants
    volume-attach       Attach a volume to a server.
    volume-create       Add a new volume.
    volume-delete       Remove a volume.
    volume-detach       Detach a volume from a server.
    volume-list         List all the volumes.
    volume-show         Show details about a volume.
    volume-snapshot-create
                        Add a new snapshot.
    volume-snapshot-delete
                        Remove a snapshot.
    volume-snapshot-list
                        List all the snapshots.
    volume-snapshot-show
                        Show details about a snapshot.
    volume-type-create  Create a new volume type.
    volume-type-delete  Delete a specific flavor
    volume-type-list    Print a list of available 'volume types'.
    x509-create-cert    Create x509 cert for a user in tenant
    x509-get-root-cert  Fetches the x509 root cert.
    bash-completion     Prints all of the commands and options to stdout so
                        that the nova.bash_completion script doesn't have to
                        hard code them.
    help                Display help about this program or one of its
                        subcommands.

Optional arguments:
  --debug               Print debugging output
  --no-cache            Don't use the auth token cache.
  --timings             Print call timing info
  --os-username <auth-user-name>
                        Defaults to env[OS_USERNAME].
  --os-password <auth-password>
                        Defaults to env[OS_PASSWORD].
  --os-tenant-name <auth-tenant-name>
                        Defaults to env[OS_TENANT_NAME].
  --os-auth-url <auth-url>
                        Defaults to env[OS_AUTH_URL].
  --os-region-name <region-name>
                        Defaults to env[OS_REGION_NAME].
  --os-auth-system <auth-system>
                        Defaults to env[OS_AUTH_SYSTEM].
  --service-type <service-type>
                        Defaults to compute for most actions
  --service-name <service-name>
                        Defaults to env[NOVA_SERVICE_NAME]
  --volume-service-name <volume-service-type>
                        Defaults to env[NOVA_VOLUME_SERVICE_NAME]
  --endpoint-type <endpoint-type>
                        Defaults to env[NOVA_ENDPOINT_TYPE] or publicURL.
  --os-compute-api-version <compute-api-ver>
                        Accepts 1.1, defaults to env[OS_COMPUTE_API_VERSION].      --username USERNAME   Deprecated
  --insecure            Explicitly allow novaclient to perform "insecure" SSL
                        (https) requests. The server's certificate will not be
                        verified against any certificate authorities. This
                        option should be used with caution.
  --bypass-url <bypass-url>
                        Use this API endpoint instead of the Service Catalog

See "nova help COMMAND" for help on a specific command.

Python API

There’s also a complete Python API, but it has not yet been documented.

Quick-start using keystone:

# use v2.0 auth with http://example.com:5000/v2.0/")
>>> from novaclient.v1_1 import client
>>> nt = client.Client(USER, PASS, TENANT, AUTH_URL, service_type="compute")
>>> nt.flavors.list()
[...]
>>> nt.servers.list()
[...]
>>> nt.keypairs.list()
[...]