aborrero@cloudcontrol1004:~ $ python3 wmcs-vm-console.py toolsbeta-test-k8s-etcd-2 toolsbeta
VM nova ID:    59922260-bd39-4bdc-b233-feb78ddb2665
VM Hypervisor: cloudvirt1014.eqiad.wmnet
VM libvirt id: i-0000ddf4

Try this in your laptop:

	ssh -t cloudvirt1014.eqiad.wmnet "sudo virsh console --devname serial1 i-0000ddf4"

(I would really love to do that myself, but SSH creds, etc...)

#!/usr/bin/env python3

import os
import sys
import argparse
import yaml
import keystoneauth1
from keystoneauth1.identity import v3
from keystoneauth1 import session as keystone_session
from novaclient import client as novaclient


def exit_with_msg(msg):
    print("ERROR: {}".format(msg), file=sys.stderr)
    exit(1)


def main():
    parser = argparse.ArgumentParser(description="Jump by SSH to a VM console")
    parser.add_argument("name", help="VM name")
    parser.add_argument(
        "project",
        help="OpenStack project scope",
    )
    parser.add_argument(
        "--observer-pass",
        default="",
        help="Password for the OpenStack observer account",
    )
    parser.add_argument(
        "--auth-url",
        default="",
        help="Keystone URL -- can be obtained from novaobserver.yaml",
    )
    args = parser.parse_args()

    if not args.observer_pass:
        if os.path.isfile("/etc/novaobserver.yaml"):
            with open("/etc/novaobserver.yaml") as conf_fh:
                nova_observer_config = yaml.safe_load(conf_fh)

            args.observer_pass = nova_observer_config["OS_PASSWORD"]
            args.auth_url = nova_observer_config["OS_AUTH_URL"]
        else:
            exit_with_msg("The --observer-pass argument is required without /etc/novaobserver.yaml")

    if not args.auth_url:
        exit_with_msg("the --auth-url argument is required without /etc/novaobserver.yaml")

    auth = v3.Password(
        auth_url=args.auth_url,
        username="novaobserver",
        password=args.observer_pass,
        user_domain_name='Default',
        project_domain_name='Default',
        project_name=args.project
    )
    session = keystoneauth1.session.Session(auth=auth)
    mynovaclient = novaclient.Client("2.0", session=session)

    try:
        server = mynovaclient.servers.list(search_opts={'name': '^{}$'.format(args.name)})
    except keystoneauth1.exceptions.http.Unauthorized:
        exit_with_msg("couldn't query the openstack API. Operation not authorized.")
    except:
        raise

    if len(server) > 1:
        exit_with_msg("more than 1 VM found with that name.")

    if len(server) == 0:
        exit_with_msg("no VM found with that name.")

    vm_info = server[0]._info
    vm_id = server[0].id
    vm_hypervisor = vm_info['OS-EXT-SRV-ATTR:hypervisor_hostname']
    vm_libvirt_id = vm_info['OS-EXT-SRV-ATTR:instance_name']

    print("VM nova ID:    {}".format(vm_id))
    print("VM hypervisor: {}".format(vm_hypervisor))
    print("VM libvirt id: {}".format(vm_libvirt_id))
    print()

    print("Try this in your laptop:\n")
    print("\tssh -t {} \"sudo virsh console --devname serial1 {}\"".format(
          vm_hypervisor, vm_libvirt_id))

    print("\n(I would really love to do that myself, but SSH creds etc...)")

if __name__ == "__main__":
    main()