kea/tests/lettuce/features/terrain/bind10_control.py

# Copyright (C) 2011  Internet Systems Consortium.
#
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# purpose with or without fee is hereby granted, provided that the above
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# DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
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from lettuce import *
import subprocess
import re

@step('start bind10(?: with configuration (\S+))?' +\
      '(?: with cmdctl port (\d+))?(?: as (\S+))?')
def start_bind10(step, config_file, cmdctl_port, process_name):
    """
    Start BIND 10 with the given optional config file, cmdctl port, and
    store the running process in world with the given process name.
    Parameters:
    config_file ('with configuration <file>', optional): this configuration
                will be used. The path is relative to the base lettuce
                directory.
    cmdctl_port ('with cmdctl port <portnr>', optional): The port on which
                b10-cmdctl listens for bindctl commands. Defaults to 47805.
    process_name ('as <name>', optional). This is the name that can be used
                 in the following steps of the scenario to refer to this
                 BIND 10 instance. Defaults to 'bind10'.
    This call will block until BIND10_STARTUP_COMPLETE or BIND10_STARTUP_ERROR
    is logged. In the case of the latter, or if it times out, the step (and
    scenario) will fail.
    It will also fail if there is a running process with the given process_name
    already.
    """
    args = [ 'bind10', '-v' ]
    if config_file is not None:
        args.append('-p')
        args.append("configurations/")
        args.append('-c')
        args.append(config_file)
    if cmdctl_port is None:
        args.append('--cmdctl-port=47805')
    else:
        args.append('--cmdctl-port=' + cmdctl_port)
    if process_name is None:
        process_name = "bind10"
    else:
        args.append('-m')
        args.append(process_name + '_msgq.socket')

    world.processes.add_process(step, process_name, args)

    # check output to know when startup has been completed
    message = world.processes.wait_for_stderr_str(process_name,
                                                  ["BIND10_STARTUP_COMPLETE",
                                                   "BIND10_STARTUP_ERROR"])
    assert message == "BIND10_STARTUP_COMPLETE", "Got: " + str(message)

@step('wait for bind10 auth (?:of (\w+) )?to start')
def wait_for_auth(step, process_name):
    """Wait for b10-auth to run. This is done by blocking until the message
       AUTH_SERVER_STARTED is logged.
       Parameters:
       process_name ('of <name', optional): The name of the BIND 10 instance
                    to wait for. Defaults to 'bind10'.
    """
    if process_name is None:
        process_name = "bind10"
    world.processes.wait_for_stderr_str(process_name, ['AUTH_SERVER_STARTED'],
                                        False)

@step('have bind10 running(?: with configuration ([\w.]+))?')
def have_bind10_running(step, config_file):
    """
    Compound convenience step for running bind10, which consists of
    start_bind10 and wait_for_auth.
    Currently only supports the 'with configuration' option.
    """
    step.given('start bind10 with configuration ' + config_file)
    step.given('wait for bind10 auth to start')

@step('set bind10 configuration (\S+) to (.*)(?: with cmdctl port (\d+))?')
def set_config_command(step, name, value, cmdctl_port):
    """
    Run bindctl, set the given configuration to the given value, and commit it.
    Parameters:
    name ('configuration <name>'): Identifier of the configuration to set
    value ('to <value>'): value to set it to.
    cmdctl_port ('with cmdctl port <portnr>', optional): cmdctl port to send
                the command to. Defaults to 47805.
    Fails if cmdctl does not exit with status code 0.
    """
    if cmdctl_port is None:
        cmdctl_port = '47805'
    args = ['bindctl', '-p', cmdctl_port]
    bindctl = subprocess.Popen(args, 1, None, subprocess.PIPE,
                               subprocess.PIPE, None)
    bindctl.stdin.write("config set " + name + " " + value + "\n")
    bindctl.stdin.write("config commit\n")
    bindctl.stdin.write("quit\n")
    result = bindctl.wait()
    assert result == 0, "bindctl exit code: " + str(result)