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Viewing changes to hooks/charmhelpers/core/host.py

  • Committer: James Page
  • Date: 2013-09-20 15:52:45 UTC
  • mto: (29.2.187 glance)
  • mto: This revision was merged to the branch mainline in revision 37.
  • Revision ID: james.page@canonical.com-20130920155245-udz175q6z2dw6f87
Renamed tests->unit_tests, updated as appropriate, re-synced charm-helpers

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hooks/charmhelpers/core/host.py
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#  Nick Moffitt <nick.moffitt@canonical.com>
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#  Matthew Wedgwood <matthew.wedgwood@canonical.com>
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import apt_pkg
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import os
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import pwd
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import grp
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def service_start(service_name):
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    service('start', service_name)
 
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    return service('start', service_name)
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def service_stop(service_name):
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    service('stop', service_name)
 
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    return service('stop', service_name)
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def service_restart(service_name):
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    service('restart', service_name)
 
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    return service('restart', service_name)
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def service_reload(service_name, restart_on_failure=False):
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    if not service('reload', service_name) and restart_on_failure:
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        service('restart', service_name)
 
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    service_result = service('reload', service_name)
 
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    if not service_result and restart_on_failure:
 
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        service_result = service('restart', service_name)
 
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    return service_result
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def service(action, service_name):
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        target.write(content)
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def filter_installed_packages(packages):
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    """Returns a list of packages that require installation"""
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    apt_pkg.init()
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    cache = apt_pkg.Cache()
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    _pkgs = []
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    for package in packages:
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        try:
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            p = cache[package]
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            p.current_ver or _pkgs.append(package)
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        except KeyError:
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            log('Package {} has no installation candidate.'.format(package),
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                level='WARNING')
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            _pkgs.append(package)
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    return _pkgs
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def apt_install(packages, options=None, fatal=False):
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    """Install one or more packages"""
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    options = options or []
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    cmd = ['apt-get', '-y']
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    cmd.extend(options)
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    cmd.append('install')
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    if isinstance(packages, basestring):
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        cmd.append(packages)
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    else:
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        cmd.extend(packages)
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    log("Installing {} with options: {}".format(packages,
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                                                options))
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    if fatal:
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        subprocess.check_call(cmd)
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    else:
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        subprocess.call(cmd)
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def apt_update(fatal=False):
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    """Update local apt cache"""
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    cmd = ['apt-get', 'update']
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    if fatal:
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        subprocess.check_call(cmd)
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    else:
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        subprocess.call(cmd)
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def mount(device, mountpoint, options=None, persist=False):
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    '''Mount a filesystem'''
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    cmd_args = ['mount']