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# Author: Jeff Bauer <jbauer@rubic.com>
#
# This file is part of cloud-init. See LICENSE file for license information.

"""Salt Minion: Setup and run salt minion"""

import os
from logging import Logger
from textwrap import dedent

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

MODULE_DESCRIPTION = """\
This module installs, configures and starts salt minion. If the ``salt_minion``
key is present in the config parts, then salt minion will be installed and
started. Configuration for salt minion can be specified in the ``conf`` key
under ``salt_minion``. Any conf values present there will be assigned in
``/etc/salt/minion``. The public and private keys to use for salt minion can be
specified with ``public_key`` and ``private_key`` respectively. Optionally if
you have a custom package name, service name or config directory you can
specify them with ``pkg_name``, ``service_name`` and ``config_dir``.

Salt keys can be manually generated by: ``salt-key --gen-keys=GEN_KEYS``,
where ``GEN_KEYS`` is the name of the keypair, e.g. 'minion'.  The keypair
will be copied to ``/etc/salt/pki`` on the minion instance.
"""

meta: MetaSchema = {
    "id": "cc_salt_minion",
    "name": "Salt Minion",
    "title": "Setup and run salt minion",
    "description": MODULE_DESCRIPTION,
    "distros": [ALL_DISTROS],
    "frequency": PER_INSTANCE,
    "examples": [
        dedent(
            """\
            salt_minion:
                pkg_name: salt-minion
                service_name: salt-minion
                config_dir: /etc/salt
                conf:
                    master: salt.example.com
                grains:
                    role:
                        - web
                public_key: |
                    ------BEGIN PUBLIC KEY-------
                    <key data>
                    ------END PUBLIC KEY-------
                private_key: |
                    ------BEGIN PRIVATE KEY------
                    <key data>
                    ------END PRIVATE KEY-------
                pki_dir: /etc/salt/pki/minion
            """
        )
    ],
    "activate_by_schema_keys": ["salt_minion"],
}

__doc__ = get_meta_doc(meta)

# Note: see https://docs.saltstack.com/en/latest/topics/installation/
# Note: see https://docs.saltstack.com/en/latest/ref/configuration/


class SaltConstants:
    """
    defines default distribution specific salt variables
    """

    def __init__(self, cfg):

        # constants tailored for FreeBSD
        if util.is_FreeBSD():
            self.pkg_name = "py-salt"
            self.srv_name = "salt_minion"
            self.conf_dir = "/usr/local/etc/salt"
        # constants for any other OS
        else:
            self.pkg_name = "salt-minion"
            self.srv_name = "salt-minion"
            self.conf_dir = "/etc/salt"

        # if there are constants given in cloud config use those
        self.pkg_name = util.get_cfg_option_str(cfg, "pkg_name", self.pkg_name)
        self.conf_dir = util.get_cfg_option_str(
            cfg, "config_dir", self.conf_dir
        )
        self.srv_name = util.get_cfg_option_str(
            cfg, "service_name", self.srv_name
        )


def handle(
    name: str, cfg: Config, cloud: Cloud, log: Logger, args: list
) -> None:
    # If there isn't a salt key in the configuration don't do anything
    if "salt_minion" not in cfg:
        log.debug(
            "Skipping module named %s, no 'salt_minion' key in configuration",
            name,
        )
        return

    s_cfg = cfg["salt_minion"]
    const = SaltConstants(cfg=s_cfg)

    # Start by installing the salt package ...
    cloud.distro.install_packages(const.pkg_name)

    # Ensure we can configure files at the right dir
    util.ensure_dir(const.conf_dir)

    # ... and then update the salt configuration
    if "conf" in s_cfg:
        # Add all sections from the conf object to minion config file
        minion_config = os.path.join(const.conf_dir, "minion")
        minion_data = safeyaml.dumps(s_cfg.get("conf"))
        util.write_file(minion_config, minion_data)

    if "grains" in s_cfg:
        # add grains to /etc/salt/grains
        grains_config = os.path.join(const.conf_dir, "grains")
        grains_data = safeyaml.dumps(s_cfg.get("grains"))
        util.write_file(grains_config, grains_data)

    # ... copy the key pair if specified
    if "public_key" in s_cfg and "private_key" in s_cfg:
        pki_dir_default = os.path.join(const.conf_dir, "pki/minion")
        if not os.path.isdir(pki_dir_default):
            pki_dir_default = os.path.join(const.conf_dir, "pki")

        pki_dir = s_cfg.get("pki_dir", pki_dir_default)
        with util.umask(0o77):
            util.ensure_dir(pki_dir)
            pub_name = os.path.join(pki_dir, "minion.pub")
            pem_name = os.path.join(pki_dir, "minion.pem")
            util.write_file(pub_name, s_cfg["public_key"])
            util.write_file(pem_name, s_cfg["private_key"])

    # we need to have the salt minion service enabled in rc in order to be
    # able to start the service. this does only apply on FreeBSD servers.
    if cloud.distro.osfamily == "freebsd":
        bsd_utils.set_rc_config_value("salt_minion_enable", "YES")

    # restart salt-minion. 'service' will start even if not started. if it
    # was started, it needs to be restarted for config change.
    subp.subp(["service", const.srv_name, "restart"], capture=False)


# vi: ts=4 expandtab

Filemanager

Name Type Size Permission Actions
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schemas Folder 0755
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cc_ansible.py File 8.37 KB 0644
cc_apk_configure.py File 5.75 KB 0644
cc_apt_configure.py File 32.46 KB 0644
cc_apt_pipelining.py File 2.82 KB 0644
cc_bootcmd.py File 2.87 KB 0644
cc_byobu.py File 3.67 KB 0644
cc_ca_certs.py File 8.06 KB 0644
cc_chef.py File 13.79 KB 0644
cc_disable_ec2_metadata.py File 2.04 KB 0644
cc_disk_setup.py File 32.34 KB 0644
cc_fan.py File 3.11 KB 0644
cc_final_message.py File 3.41 KB 0644
cc_growpart.py File 19.42 KB 0644
cc_grub_dpkg.py File 5.49 KB 0644
cc_install_hotplug.py File 3.81 KB 0644
cc_keyboard.py File 2.08 KB 0644
cc_keys_to_console.py File 3.63 KB 0644
cc_landscape.py File 4.86 KB 0644
cc_locale.py File 1.88 KB 0644
cc_lxd.py File 17.96 KB 0644
cc_mcollective.py File 6.2 KB 0644
cc_migrator.py File 3.51 KB 0644
cc_mounts.py File 19.03 KB 0644
cc_ntp.py File 19.7 KB 0644
cc_package_update_upgrade_install.py File 4.42 KB 0644
cc_phone_home.py File 5.5 KB 0644
cc_power_state_change.py File 7.65 KB 0644
cc_puppet.py File 13.74 KB 0644
cc_refresh_rmc_and_interface.py File 5.48 KB 0644
cc_reset_rmc.py File 4.53 KB 0644
cc_resizefs.py File 10.56 KB 0644
cc_resolv_conf.py File 5.01 KB 0644
cc_rh_subscription.py File 17.05 KB 0644
cc_rightscale_userdata.py File 4.3 KB 0644
cc_rsyslog.py File 9.77 KB 0644
cc_runcmd.py File 2.92 KB 0644
cc_salt_minion.py File 5.54 KB 0644
cc_scripts_per_boot.py File 1.68 KB 0644
cc_scripts_per_instance.py File 1.83 KB 0644
cc_scripts_per_once.py File 1.78 KB 0644
cc_scripts_user.py File 1.87 KB 0644
cc_scripts_vendor.py File 2.31 KB 0644
cc_seed_random.py File 4.81 KB 0644
cc_set_hostname.py File 4.89 KB 0644
cc_set_passwords.py File 11.05 KB 0644
cc_snap.py File 6.39 KB 0644
cc_spacewalk.py File 3.52 KB 0644
cc_ssh.py File 14.03 KB 0644
cc_ssh_authkey_fingerprints.py File 4.24 KB 0644
cc_ssh_import_id.py File 5.82 KB 0644
cc_timezone.py File 1.44 KB 0644
cc_ubuntu_advantage.py File 16.88 KB 0644
cc_ubuntu_autoinstall.py File 4.56 KB 0644
cc_ubuntu_drivers.py File 4.63 KB 0644
cc_update_etc_hosts.py File 5.11 KB 0644
cc_update_hostname.py File 3.63 KB 0644
cc_users_groups.py File 7.6 KB 0644
cc_wireguard.py File 9.28 KB 0644
cc_write_files.py File 6.75 KB 0644
cc_write_files_deferred.py File 1.68 KB 0644
cc_yum_add_repo.py File 7.47 KB 0644
cc_zypper_add_repo.py File 6.68 KB 0644
modules.py File 11.43 KB 0644
schema.py File 43.14 KB 0644