def leader_init_db_if_ready(skip_acl_check=False, db_rid=None, unit=None):
"""Initialise db if leader and db not yet intialised.
NOTE: must be called from database context.
"""
if not hookenv.is_leader():
hookenv.log("Not leader - skipping db init", level=hookenv.DEBUG)
return
if ncc_utils.is_db_initialised():
hookenv.log("Database already initialised - skipping db init",
level=hookenv.DEBUG)
return
# Bugs 1353135 & 1187508. Dbs can appear to be ready before the units
# acl entry has been added. So, if the db supports passing a list of
# permitted units then check if we're in the list.
allowed_units = hookenv.relation_get('nova_allowed_units',
rid=db_rid, unit=unit)
if skip_acl_check or (allowed_units and hookenv.local_unit() in
allowed_units.split()):
hookenv.status_set('maintenance', 'Running nova db migration')
ncc_utils.migrate_nova_databases()
hookenv.log('Triggering remote restarts.')
update_nova_relation(remote_restart=True)
else:
hookenv.log('allowed_units either not presented, or local unit '
'not in acl list: %s' % repr(allowed_units))
def leader_init_db_if_ready(skip_acl_check=False, db_rid=None, unit=None):
"""Initialise db if leader and db not yet intialised.
NOTE: must be called from database context.
"""
if not hookenv.is_leader():
hookenv.log("Not leader - skipping db init", level=hookenv.DEBUG)
return
if ncc_utils.is_db_initialised():
hookenv.log("Database already initialised - skipping db init",
level=hookenv.DEBUG)
return
# Bugs 1353135 & 1187508. Dbs can appear to be ready before the units
# acl entry has been added. So, if the db supports passing a list of
# permitted units then check if we're in the list.
allowed_units = hookenv.relation_get('nova_allowed_units',
rid=db_rid, unit=unit)
if skip_acl_check or (allowed_units and hookenv.local_unit() in
allowed_units.split()):
hookenv.status_set('maintenance', 'Running nova db migration')
ncc_utils.migrate_nova_databases()
hookenv.log('Triggering remote restarts.')
update_nova_relation(remote_restart=True)
else:
hookenv.log('allowed_units either not presented, or local unit '
'not in acl list: %s' % repr(allowed_units))
def add_hosts_to_cell_when_ready():
"""Helper function to call add_hosts_to_cell() when the unit is the leader
and the cellv2 and database are ready.
:raises: subprocess.CalledProcessError if cells command fails
"""
if (hookenv.is_leader() and
ncc_utils.is_cellv2_init_ready() and
ncc_utils.is_db_initialised()):
ncc_utils.add_hosts_to_cell()
def update_cell_db_if_ready(skip_acl_check=False, db_rid=None, unit=None):
"""Update the cells db if leader and db's are already intialised"""
if not hookenv.is_leader():
return
if not ncc_utils.is_db_initialised():
hookenv.log("Database not initialised - skipping cell db update",
level=hookenv.DEBUG)
return
if not ncc_utils.is_cellv2_init_ready():
return
allowed_units = hookenv.relation_get('nova_allowed_units',
rid=db_rid, unit=unit)
if skip_acl_check or (allowed_units and hookenv.local_unit() in
allowed_units.split()):
ncc_utils.update_cell_database()
else:
hookenv.log('allowed_units either not presented, or local unit '
'not in acl list: %s' % repr(allowed_units))
def update_cell_db_if_ready(skip_acl_check=False, db_rid=None, unit=None):
"""Update the cells db if leader and db's are already intialised"""
if not hookenv.is_leader():
return
if not ncc_utils.is_db_initialised():
hookenv.log("Database not initialised - skipping cell db update",
level=hookenv.DEBUG)
return
if not ncc_utils.is_cellv2_init_ready():
return
allowed_units = hookenv.relation_get('nova_allowed_units',
rid=db_rid, unit=unit)
if skip_acl_check or (allowed_units and hookenv.local_unit() in
allowed_units.split()):
ncc_utils.update_cell_database()
else:
hookenv.log('allowed_units either not presented, or local unit '
'not in acl list: %s' % repr(allowed_units))
def compute_changed(rid=None, unit=None):
for r_id in hookenv.relation_ids('nova-api'):
nova_api_relation_joined(rid=r_id)
rel_settings = hookenv.relation_get(rid=rid, unit=unit)
if not rel_settings.get('region', None) == hookenv.config('region'):
hookenv.relation_set(relation_id=rid, region=hookenv.config('region'))
if (hookenv.is_leader() and
ncc_utils.is_cellv2_init_ready() and
ncc_utils.is_db_initialised()):
ncc_utils.add_hosts_to_cell()
if 'migration_auth_type' not in rel_settings:
return
if rel_settings['migration_auth_type'] == 'ssh':
hookenv.status_set('maintenance', 'configuring live migration')
key = rel_settings.get('ssh_public_key')
if not key:
hookenv.log('SSH migration set but peer did not publish key.')
return
ncc_utils.ssh_compute_add(key, rid=rid, unit=unit)
index = 0
for line in ncc_utils.ssh_known_hosts_lines(unit=unit):
hookenv.relation_set(relation_id=rid,
relation_settings={
'known_hosts_{}'.format(index): line
})
index += 1
hookenv.relation_set(relation_id=rid, known_hosts_max_index=index)
index = 0
for line in ncc_utils.ssh_authorized_keys_lines(unit=unit):
hookenv.relation_set(relation_id=rid,
relation_settings={
'authorized_keys_{}'.format(index): line
})
index += 1
hookenv.relation_set(relation_id=rid, authorized_keys_max_index=index)
if 'nova_ssh_public_key' not in rel_settings:
return
if rel_settings['nova_ssh_public_key']:
ncc_utils.ssh_compute_add(rel_settings['nova_ssh_public_key'],
rid=rid, unit=unit, user='******')
index = 0
for line in ncc_utils.ssh_known_hosts_lines(unit=unit, user='******'):
hookenv.relation_set(relation_id=rid,
relation_settings={
'{}_known_hosts_{}'.format('nova',
index): line
})
index += 1
hookenv.relation_set(relation_id=rid,
relation_settings={
('{}_known_hosts_max_index'
.format('nova')): index
})
index = 0
for line in ncc_utils.ssh_authorized_keys_lines(
unit=unit, user='******'):
hookenv.relation_set(relation_id=rid,
relation_settings={
'{}_authorized_keys_{}'.format(
'nova',
index): line
})
index += 1
hookenv.relation_set(relation_id=rid,
relation_settings={
'{}_authorized_keys_max_index'.format(
'nova'): index
})
def compute_changed(rid=None, unit=None):
for r_id in hookenv.relation_ids('nova-api'):
nova_api_relation_joined(rid=r_id)
rel_settings = hookenv.relation_get(rid=rid, unit=unit)
if not rel_settings.get('region', None) == hookenv.config('region'):
hookenv.relation_set(relation_id=rid, region=hookenv.config('region'))
if (hookenv.is_leader() and ncc_utils.is_cellv2_init_ready()
and ncc_utils.is_db_initialised()):
ncc_utils.add_hosts_to_cell()
if 'migration_auth_type' not in rel_settings:
return
if rel_settings['migration_auth_type'] == 'ssh':
hookenv.status_set('maintenance', 'configuring live migration')
key = rel_settings.get('ssh_public_key')
if not key:
hookenv.log('SSH migration set but peer did not publish key.')
return
ncc_utils.ssh_compute_add(key, rid=rid, unit=unit)
index = 0
for line in ncc_utils.ssh_known_hosts_lines(unit=unit):
hookenv.relation_set(
relation_id=rid,
relation_settings={'known_hosts_{}'.format(index): line})
index += 1
hookenv.relation_set(relation_id=rid, known_hosts_max_index=index)
index = 0
for line in ncc_utils.ssh_authorized_keys_lines(unit=unit):
hookenv.relation_set(
relation_id=rid,
relation_settings={'authorized_keys_{}'.format(index): line})
index += 1
hookenv.relation_set(relation_id=rid, authorized_keys_max_index=index)
if 'nova_ssh_public_key' not in rel_settings:
return
if rel_settings['nova_ssh_public_key']:
ncc_utils.ssh_compute_add(rel_settings['nova_ssh_public_key'],
rid=rid,
unit=unit,
user='******')
index = 0
for line in ncc_utils.ssh_known_hosts_lines(unit=unit, user='******'):
hookenv.relation_set(relation_id=rid,
relation_settings={
'{}_known_hosts_{}'.format('nova', index):
line
})
index += 1
hookenv.relation_set(relation_id=rid,
relation_settings={
('{}_known_hosts_max_index'.format('nova')):
index
})
index = 0
for line in ncc_utils.ssh_authorized_keys_lines(unit=unit,
user='******'):
hookenv.relation_set(relation_id=rid,
relation_settings={
'{}_authorized_keys_{}'.format(
'nova', index):
line
})
index += 1
hookenv.relation_set(relation_id=rid,
relation_settings={
'{}_authorized_keys_max_index'.format('nova'):
index
})