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Name	Size	Permission	Date
__pycache__	[ DIR ]	drwxr-xr-x	2026-05-29 11:30
schemas	[ DIR ]	drwxr-xr-x	2026-05-29 11:30
__init__.py	14 B	-rw-r--r--	2023-12-04 11:47
cc_ansible.py	8.69 KB	-rw-r--r--	2023-12-04 11:47
cc_apk_configure.py	5.66 KB	-rw-r--r--	2023-12-04 11:47
cc_apt_configure.py	41.99 KB	-rw-r--r--	2023-12-04 11:47
cc_apt_pipelining.py	2.71 KB	-rw-r--r--	2023-12-04 11:47
cc_bootcmd.py	2.85 KB	-rw-r--r--	2023-12-04 11:47
cc_byobu.py	3.65 KB	-rw-r--r--	2023-12-04 11:47
cc_ca_certs.py	9.13 KB	-rw-r--r--	2026-05-28 15:47
cc_chef.py	13.77 KB	-rw-r--r--	2023-12-04 11:47
cc_disable_ec2_metadata.py	2.03 KB	-rw-r--r--	2023-12-04 11:47
cc_disk_setup.py	32.36 KB	-rw-r--r--	2023-12-04 11:47
cc_fan.py	3.02 KB	-rw-r--r--	2023-12-04 11:47
cc_final_message.py	3.39 KB	-rw-r--r--	2023-12-04 11:47
cc_growpart.py	21.03 KB	-rw-r--r--	2023-12-04 11:47
cc_grub_dpkg.py	6.65 KB	-rw-r--r--	2023-12-04 11:47
cc_install_hotplug.py	3.81 KB	-rw-r--r--	2023-12-04 11:47
cc_keyboard.py	2.38 KB	-rw-r--r--	2023-12-04 11:47
cc_keys_to_console.py	3.61 KB	-rw-r--r--	2023-12-04 11:47
cc_landscape.py	5.31 KB	-rw-r--r--	2023-12-04 11:47
cc_locale.py	1.86 KB	-rw-r--r--	2023-12-04 11:47
cc_lxd.py	18.14 KB	-rw-r--r--	2023-12-04 11:47
cc_mcollective.py	6.1 KB	-rw-r--r--	2023-12-04 11:47
cc_migrator.py	3.49 KB	-rw-r--r--	2023-12-04 11:47
cc_mounts.py	19.71 KB	-rw-r--r--	2023-12-04 11:47
cc_ntp.py	20.84 KB	-rw-r--r--	2026-05-28 15:47
cc_package_update_upgrade_install.py	4.54 KB	-rw-r--r--	2023-12-04 11:47
cc_phone_home.py	5.48 KB	-rw-r--r--	2023-12-04 11:47
cc_power_state_change.py	7.41 KB	-rw-r--r--	2023-12-04 11:47
cc_puppet.py	14.1 KB	-rw-r--r--	2023-12-04 11:47
cc_reset_rmc.py	4.47 KB	-rw-r--r--	2023-12-04 11:47
cc_resizefs.py	10.73 KB	-rw-r--r--	2023-12-04 11:47
cc_resolv_conf.py	4.98 KB	-rw-r--r--	2026-05-28 15:47
cc_rh_subscription.py	16.97 KB	-rw-r--r--	2026-05-28 15:47
cc_rightscale_userdata.py	4.28 KB	-rw-r--r--	2023-12-04 11:47
cc_rsyslog.py	13.48 KB	-rw-r--r--	2023-12-04 11:47
cc_runcmd.py	2.9 KB	-rw-r--r--	2023-12-04 11:47
cc_salt_minion.py	5.88 KB	-rw-r--r--	2023-12-04 11:47
cc_scripts_per_boot.py	1.66 KB	-rw-r--r--	2023-12-04 11:47
cc_scripts_per_instance.py	1.81 KB	-rw-r--r--	2023-12-04 11:47
cc_scripts_per_once.py	1.76 KB	-rw-r--r--	2023-12-04 11:47
cc_scripts_user.py	1.85 KB	-rw-r--r--	2023-12-04 11:47
cc_scripts_vendor.py	2.29 KB	-rw-r--r--	2023-12-04 11:47
cc_seed_random.py	4.72 KB	-rw-r--r--	2023-12-04 11:47
cc_set_hostname.py	5.13 KB	-rw-r--r--	2023-12-04 11:47
cc_set_passwords.py	10.97 KB	-rw-r--r--	2023-12-04 11:47
cc_snap.py	6.3 KB	-rw-r--r--	2023-12-04 11:47
cc_spacewalk.py	3.43 KB	-rw-r--r--	2023-12-04 11:47
cc_ssh.py	14.86 KB	-rw-r--r--	2023-12-04 11:47
cc_ssh_authkey_fingerprints.py	4.22 KB	-rw-r--r--	2023-12-04 11:47
cc_ssh_import_id.py	6.12 KB	-rw-r--r--	2023-12-04 11:47
cc_timezone.py	1.46 KB	-rw-r--r--	2023-12-04 11:47
cc_ubuntu_advantage.py	17 KB	-rw-r--r--	2023-12-04 11:47
cc_ubuntu_autoinstall.py	4.5 KB	-rw-r--r--	2023-12-04 11:47
cc_ubuntu_drivers.py	4.56 KB	-rw-r--r--	2023-12-04 11:47
cc_update_etc_hosts.py	5.16 KB	-rw-r--r--	2023-12-04 11:47
cc_update_hostname.py	3.87 KB	-rw-r--r--	2023-12-04 11:47
cc_users_groups.py	8.57 KB	-rw-r--r--	2023-12-04 11:47
cc_wireguard.py	9.22 KB	-rw-r--r--	2023-12-04 11:47
cc_write_files.py	6.66 KB	-rw-r--r--	2023-12-04 11:47
cc_write_files_deferred.py	1.68 KB	-rw-r--r--	2023-12-04 11:47
cc_yum_add_repo.py	7.45 KB	-rw-r--r--	2023-12-04 11:47
cc_zypper_add_repo.py	6.59 KB	-rw-r--r--	2023-12-04 11:47
modules.py	11.74 KB	-rw-r--r--	2023-12-04 11:47
schema.py	54.85 KB	-rw-r--r--	2023-12-04 11:47

Rename

# (c) Copyright IBM Corp. 2020 All Rights Reserved
#
# Author: Aman Kumar Sinha <amansi26@in.ibm.com>
#
# This file is part of cloud-init. See LICENSE file for license information.
"""Reset RMC: Reset rsct node id"""
import logging
import os

from cloudinit import subp, util
from cloudinit.cloud import Cloud
from cloudinit.config import Config
from cloudinit.config.schema import MetaSchema
from cloudinit.distros import ALL_DISTROS
from cloudinit.settings import PER_INSTANCE

MODULE_DESCRIPTION = """\
Reset RMC module is IBM PowerVM Hypervisor specific

Reliable Scalable Cluster Technology (RSCT) is a set of software components,
that  together provide a comprehensive clustering environment (RAS features)
for IBM PowerVM based virtual machines. RSCT includes the Resource monitoring
and control (RMC) subsystem. RMC is a generalized framework used for managing,
monitoring, and manipulating resources. RMC runs as a daemon process on
individual machines and needs creation of unique node id and restarts
during VM boot.
More details refer
https://www.ibm.com/support/knowledgecenter/en/SGVKBA_3.2/admin/bl503_ovrv.htm

This module handles
- creation of the unique RSCT node id to every instance/virtual machine
  and ensure once set, it isn't changed subsequently by cloud-init.
  In order to do so, it restarts RSCT service.

Prerequisite of using this module is to install RSCT packages.
"""

meta: MetaSchema = {
    "id": "cc_reset_rmc",
    "name": "Reset RMC",
    "title": "reset rsct node id",
    "description": MODULE_DESCRIPTION,
    "distros": [ALL_DISTROS],
    "frequency": PER_INSTANCE,
    "examples": [],
    "activate_by_schema_keys": [],
}

# This module is undocumented in our schema docs
__doc__ = ""

# RMCCTRL is expected to be in system PATH (/opt/rsct/bin)
# The symlink for RMCCTRL and RECFGCT are
# /usr/sbin/rsct/bin/rmcctrl and
# /usr/sbin/rsct/install/bin/recfgct respectively.
RSCT_PATH = "/opt/rsct/install/bin"
RMCCTRL = "rmcctrl"
RECFGCT = "recfgct"

LOG = logging.getLogger(__name__)

NODE_ID_FILE = "/etc/ct_node_id"

def handle(name: str, cfg: Config, cloud: Cloud, args: list) -> None:
    # Ensuring node id has to be generated only once during first boot
    if cloud.datasource.platform_type == "none":
        LOG.debug("Skipping creation of new ct_node_id node")
        return

if not os.path.isdir(RSCT_PATH):
        LOG.debug("module disabled, RSCT_PATH not present")
        return

orig_path = os.environ.get("PATH")
    try:
        add_path(orig_path)
        reset_rmc()
    finally:
        if orig_path:
            os.environ["PATH"] = orig_path
        else:
            del os.environ["PATH"]

def reconfigure_rsct_subsystems():
    # Reconfigure the RSCT subsystems, which includes removing all RSCT data
    # under the /var/ct directory, generating a new node ID, and making it
    # appear as if the RSCT components were just installed
    try:
        out = subp.subp([RECFGCT])[0]
        LOG.debug(out.strip())
        return out
    except subp.ProcessExecutionError:
        util.logexc(LOG, "Failed to reconfigure the RSCT subsystems.")
        raise

def get_node_id():
    try:
        fp = util.load_file(NODE_ID_FILE)
        node_id = fp.split("\n")[0]
        return node_id
    except Exception:
        util.logexc(LOG, "Failed to get node ID from file %s." % NODE_ID_FILE)
        raise

def add_path(orig_path):
    # Adding the RSCT_PATH to env standard path
    # So thet cloud init automatically find and
    # run RECFGCT to create new node_id.
    suff = ":" + orig_path if orig_path else ""
    os.environ["PATH"] = RSCT_PATH + suff
    return os.environ["PATH"]

def rmcctrl():
    # Stop the RMC subsystem and all resource managers so that we can make
    # some changes to it
    try:
        return subp.subp([RMCCTRL, "-z"])
    except Exception:
        util.logexc(LOG, "Failed to stop the RMC subsystem.")
        raise

def reset_rmc():
    LOG.debug("Attempting to reset RMC.")

node_id_before = get_node_id()
    LOG.debug("Node ID at beginning of module: %s", node_id_before)

# Stop the RMC subsystem and all resource managers so that we can make
    # some changes to it
    rmcctrl()
    reconfigure_rsct_subsystems()

node_id_after = get_node_id()
    LOG.debug("Node ID at end of module: %s", node_id_after)

# Check if new node ID is generated or not
    # by comparing old and new node ID
    if node_id_after == node_id_before:
        msg = "New node ID did not get generated."
        LOG.error(msg)
        raise RuntimeError(msg)