def get_package_candidate(pkg):
""" Return the package version from the repo if different than the version
that is currently installed.
:param: str pkg: package name as known by apt
:returns: str ver_str: version of new repo package, or None
"""
# NB: we cannot use the charmhelpers.fetch.apt_cache nor the
# apt module from the python3-apt deb as they are only available
# as system packages. Charms with use_system_packages=False in
# layer.yaml would fail. Subprocess apt-cache policy instead.
policy_cmd = ['apt-cache', 'policy', pkg]
grep_cmd = ['grep', 'Candidate:']
p1 = subprocess.Popen(policy_cmd, stdout=subprocess.PIPE)
p2 = subprocess.Popen(grep_cmd, stdin=p1.stdout, stdout=subprocess.PIPE)
p1.stdout.close()
policy_output = p2.communicate()[0].strip().decode()
p1.wait()
# policy_output will look like this:
# Candidate: 5.6.9
try:
new_ver = policy_output.split(':', 1)[1].strip()
except IndexError:
return None
else:
cur_ver = get_package_version(pkg, full_version=True)
return new_ver if new_ver != cur_ver else None
def get_package_candidate(pkg):
""" Return the package version from the repo if different than the version
that is currently installed.
:param: str pkg: package name as known by apt
:returns: str ver_str: version of new repo package, or None
"""
# NB: we cannot use the charmhelpers.fetch.apt_cache nor the
# apt module from the python3-apt deb as they are only available
# as system packages. Charms with use_system_packages=False in
# layer.yaml would fail. Subprocess apt-cache policy instead.
policy_cmd = ['apt-cache', 'policy', pkg]
grep_cmd = ['grep', 'Candidate:']
p1 = subprocess.Popen(policy_cmd, stdout=subprocess.PIPE)
p2 = subprocess.Popen(grep_cmd, stdin=p1.stdout,
stdout=subprocess.PIPE)
p1.stdout.close()
policy_output = p2.communicate()[0].strip().decode()
p1.wait()
# policy_output will look like this:
# Candidate: 5.6.9
try:
new_ver = policy_output.split(':', 1)[1].strip()
except IndexError:
return None
else:
cur_ver = get_package_version(pkg, full_version=True)
return new_ver if new_ver != cur_ver else None
def version(self):
'''
Will attempt to get the version from the version fieldof the
Kafka application.
If there is a reader exception or a parser exception, unknown
will be returned
'''
return apt.get_package_version(KAFKA_APP) or 'unknown'
def version(self):
'''
Will attempt to get the version from the version fieldof the
registry application.
If there is a reader exception or a parser exception, unknown
will be returned
'''
return apt.get_package_version(SCHEMA_REG) or 'unknown'
def install_nimsoft_robot():
'''Install the nimsoft robot software that is used for LMA.'''
nimsoft_robot_resource = None
try:
# Try to get the resource from Juju.
nimsoft_robot_resource = resource_get('nimsoft-robot-package')
except Exception as e:
message = 'An error occurred fetching the nimsoft-robot-package resource.'
hookenv.log(message)
hookenv.log(e)
hookenv.status_set('blocked', message)
return
if not nimsoft_robot_resource:
hookenv.status_set('blocked',
'The nimsoft_robot_resource resource is missing.')
return
# Handle null resource publication, we check if filesize < 1mb
filesize = os.stat(nimsoft_robot_resource).st_size
if filesize < 1000000:
hookenv.status_set('blocked',
'Incomplete nimsoft_robot_resource resource.')
return
hookenv.status_set('maintenance', 'Installing nimsoft_robot resource.')
cmd = ['dpkg', '-i', nimsoft_robot_resource]
hookenv.log(cmd)
check_call(cmd)
set_state('nimsoft-robot.installed')
cur_ver = get_package_version(nimsoft_robot, full_version=True)
# Do your setup here.
#
# If your charm has other dependencies before it can install,
# add those as @when() clauses above., or as additional @when()
# decorated handlers below
#
# See the following for information about reactive charms:
#
# * https://jujucharms.com/docs/devel/developer-getting-started
# * https://github.com/juju-solutions/layer-basic#overview
#
set_flag('nimsoft-robot.installed')
def configure():
cfg = hookenv.config()
zookeeper = Zookeeper()
changed = any((
data_changed('zkpeer.nodes', zookeeper.read_peers()),
data_changed('zk.autopurge_purge_interval',
cfg.get('autopurge_purge_interval')),
data_changed('zk.autopurge_snap_retain_count',
cfg.get('autopurge_snap_retain_count')),
data_changed('zk.storage.data_dir',
unitdata.kv().get('zookeeper.storage.data_dir')),
data_changed('zk.jmx_port',
cfg.get('jmx_port')),
))
if changed or is_flag_set('zookeeper.force-reconfigure'):
zookeeper.install()
zookeeper.open_ports()
clear_flag('zookeeper.force-reconfigure')
set_flag('zookeeper.started')
set_flag('zookeeper.configured')
hookenv.status_set('active', 'ready {}'.format(zookeeper.quorum_check()))
# set app version string for juju status output
zoo_version = apt.get_package_version(APP_NAME) or 'unknown'
hookenv.application_version_set(zoo_version)
