def leader_init_db_if_ready(skip_acl_check=False, skip_cells_restarts=False,
                            db_rid=None, unit=None):
    """Initialise db if leader and db not yet intialised.

    NOTE: must be called from database context.
    """
    if not is_elected_leader(CLUSTER_RES):
        log("Not leader - skipping db init", level=DEBUG)
        return

    if is_db_initialised():
        log("Database already initialised - skipping db init", level=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 = relation_get('nova_allowed_units', rid=db_rid, unit=unit)
    if skip_acl_check or (allowed_units and local_unit() in
                          allowed_units.split()):
        status_set('maintenance', 'Running nova db migration')
        migrate_nova_database()
        log('Triggering remote cloud-compute restarts.')
        [compute_joined(rid=rid, remote_restart=True)
            for rid in relation_ids('cloud-compute')]
        log('Triggering remote neutron-network-service restarts.')
        [quantum_joined(rid=rid, remote_restart=True)
            for rid in relation_ids('quantum-network-service')]
        if not skip_cells_restarts:
            log('Triggering remote cell restarts.')
            [nova_cell_relation_joined(rid=rid, remote_restart=True)
             for rid in relation_ids('cell')]
    else:
        log('allowed_units either not presented, or local unit '
            'not in acl list: %s' % repr(allowed_units))
Ejemplo n.º 2
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def leader_init_db_if_ready(skip_acl_check=False, skip_cells_restarts=False,
                            db_rid=None, unit=None):
    """Initialise db if leader and db not yet intialised.

    NOTE: must be called from database context.
    """
    if not is_elected_leader(CLUSTER_RES):
        log("Not leader - skipping db init", level=DEBUG)
        return

    if is_db_initialised():
        log("Database already initialised - skipping db init", level=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 = relation_get('nova_allowed_units', rid=db_rid, unit=unit)
    if skip_acl_check or (allowed_units and local_unit() in
                          allowed_units.split()):
        status_set('maintenance', 'Running nova db migration')
        migrate_nova_database()
        log('Triggering remote cloud-compute restarts.')
        [compute_joined(rid=rid, remote_restart=True)
            for rid in relation_ids('cloud-compute')]
        log('Triggering remote neutron-network-service restarts.')
        [quantum_joined(rid=rid, remote_restart=True)
            for rid in relation_ids('quantum-network-service')]
        if not skip_cells_restarts:
            log('Triggering remote cell restarts.')
            [nova_cell_relation_joined(rid=rid, remote_restart=True)
             for rid in relation_ids('cell')]
    else:
        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 is_leader():
        return

    if not is_db_initialised():
        log("Database not initialised - skipping cell db update", level=DEBUG)
        return

    allowed_units = relation_get('nova_allowed_units', rid=db_rid, unit=unit)
    if skip_acl_check or (allowed_units
                          and local_unit() in allowed_units.split()):
        update_cell_database()
    else:
        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 relation_ids('nova-api'):
        nova_api_relation_joined(rid=r_id)

    rel_settings = relation_get(rid=rid, unit=unit)
    if not rel_settings.get('region', None) == config('region'):
        relation_set(relation_id=rid, region=config('region'))

    if is_db_initialised():
        add_hosts_to_cell()

    if 'migration_auth_type' not in rel_settings:
        return
    if rel_settings['migration_auth_type'] == 'ssh':
        status_set('maintenance', 'configuring live migration')
        key = rel_settings.get('ssh_public_key')
        if not key:
            log('SSH migration set but peer did not publish key.')
            return
        ssh_compute_add(key, rid=rid, unit=unit)
        index = 0
        for line in ssh_known_hosts_lines(unit=unit):
            relation_set(
                relation_id=rid,
                relation_settings={'known_hosts_{}'.format(index): line})
            index += 1
        relation_set(relation_id=rid, known_hosts_max_index=index)
        index = 0
        for line in ssh_authorized_keys_lines(unit=unit):
            relation_set(
                relation_id=rid,
                relation_settings={'authorized_keys_{}'.format(index): line})
            index += 1
        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']:
        ssh_compute_add(rel_settings['nova_ssh_public_key'],
                        rid=rid,
                        unit=unit,
                        user='******')
        index = 0
        for line in ssh_known_hosts_lines(unit=unit, user='******'):
            relation_set(relation_id=rid,
                         relation_settings={
                             '{}_known_hosts_{}'.format('nova', index): line
                         })
            index += 1
        relation_set(relation_id=rid,
                     relation_settings={
                         '{}_known_hosts_max_index'.format('nova'): index
                     })
        index = 0
        for line in ssh_authorized_keys_lines(unit=unit, user='******'):
            relation_set(relation_id=rid,
                         relation_settings={
                             '{}_authorized_keys_{}'.format('nova', index):
                             line
                         })
            index += 1
        relation_set(relation_id=rid,
                     relation_settings={
                         '{}_authorized_keys_max_index'.format('nova'): index
                     })