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📄 __init__.py(1.4 KB)
📄 __init__.pyc(1.31 KB)
📄 __init__.pyo(1.31 KB)
📄 cc_apt_configure.py(32.8 KB)
📄 cc_apt_configure.pyc(30.2 KB)
📄 cc_apt_configure.pyo(30.2 KB)
📄 cc_apt_pipelining.py(2.44 KB)
📄 cc_apt_pipelining.pyc(2.48 KB)
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📄 cc_bootcmd.py(3.5 KB)
📄 cc_bootcmd.pyc(3.02 KB)
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📄 cc_byobu.py(3.1 KB)
📄 cc_byobu.pyc(3.09 KB)
📄 cc_byobu.pyo(3.09 KB)
📄 cc_ca_certs.py(4.09 KB)
📄 cc_ca_certs.pyc(4.1 KB)
📄 cc_ca_certs.pyo(4.1 KB)
📄 cc_chef.py(13.17 KB)
📄 cc_chef.pyc(10.79 KB)
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📄 cc_debug.py(3.08 KB)
📄 cc_debug.pyc(3.35 KB)
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📄 cc_disable_ec2_metadata.py(1.56 KB)
📄 cc_disable_ec2_metadata.pyc(1.57 KB)
📄 cc_disable_ec2_metadata.pyo(1.57 KB)
📄 cc_disk_setup.py(32.8 KB)
📄 cc_disk_setup.pyc(28.91 KB)
📄 cc_disk_setup.pyo(28.91 KB)
📄 cc_emit_upstart.py(2 KB)
📄 cc_emit_upstart.pyc(2.15 KB)
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📄 cc_fan.py(2.83 KB)
📄 cc_fan.pyc(3.09 KB)
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📄 cc_final_message.py(2.35 KB)
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📄 cc_foo.py(2.07 KB)
📄 cc_foo.pyc(702 B)
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📄 cc_growpart.py(11.51 KB)
📄 cc_growpart.pyc(11.12 KB)
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📄 cc_grub_dpkg.py(2.87 KB)
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📄 cc_keys_to_console.py(2.36 KB)
📄 cc_keys_to_console.pyc(2.39 KB)
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📄 cc_landscape.py(3.93 KB)
📄 cc_landscape.pyc(4.02 KB)
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📄 cc_locale.py(1.16 KB)
📄 cc_locale.pyc(1.16 KB)
📄 cc_locale.pyo(1.16 KB)
📄 cc_lxd.py(10.27 KB)
📄 cc_lxd.pyc(8.33 KB)
📄 cc_lxd.pyo(8.33 KB)
📄 cc_mcollective.py(5.08 KB)
📄 cc_mcollective.pyc(3.8 KB)
📄 cc_mcollective.pyo(3.8 KB)
📄 cc_migrator.py(3.07 KB)
📄 cc_migrator.pyc(3.18 KB)
📄 cc_migrator.pyo(3.18 KB)
📄 cc_mounts.py(17.24 KB)
📄 cc_mounts.pyc(14.59 KB)
📄 cc_mounts.pyo(14.59 KB)
📄 cc_ntp.py(20.19 KB)
📄 cc_ntp.pyc(15.74 KB)
📄 cc_ntp.pyo(15.74 KB)
📄 cc_package_update_upgrade_install.py(4.11 KB)
📄 cc_package_update_upgrade_install.pyc(4.01 KB)
📄 cc_package_update_upgrade_install.pyo(4.01 KB)
📄 cc_phone_home.py(3.92 KB)
📄 cc_phone_home.pyc(3.28 KB)
📄 cc_phone_home.pyo(3.28 KB)
📄 cc_power_state_change.py(7.65 KB)
📄 cc_power_state_change.pyc(7.8 KB)
📄 cc_power_state_change.pyo(7.8 KB)
📄 cc_puppet.py(8.86 KB)
📄 cc_puppet.pyc(7.06 KB)
📄 cc_puppet.pyo(7.06 KB)
📄 cc_resizefs.py(10.79 KB)
📄 cc_resizefs.pyc(9.15 KB)
📄 cc_resizefs.pyo(9.15 KB)
📄 cc_resolv_conf.py(3.43 KB)
📄 cc_resolv_conf.pyc(3.44 KB)
📄 cc_resolv_conf.pyo(3.44 KB)
📄 cc_rh_subscription.py(15.65 KB)
📄 cc_rh_subscription.pyc(13.5 KB)
📄 cc_rh_subscription.pyo(13.5 KB)
📄 cc_rightscale_userdata.py(3.76 KB)
📄 cc_rightscale_userdata.pyc(2.82 KB)
📄 cc_rightscale_userdata.pyo(2.82 KB)
📄 cc_rsyslog.py(14.1 KB)
📄 cc_rsyslog.pyc(10.56 KB)
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📄 cc_runcmd.py(3.11 KB)
📄 cc_runcmd.pyc(2.73 KB)
📄 cc_runcmd.pyo(2.73 KB)
📄 cc_salt_minion.py(4.66 KB)
📄 cc_salt_minion.pyc(3.78 KB)
📄 cc_salt_minion.pyo(3.78 KB)
📄 cc_scripts_per_boot.py(1.2 KB)
📄 cc_scripts_per_boot.pyc(1.2 KB)
📄 cc_scripts_per_boot.pyo(1.2 KB)
📄 cc_scripts_per_instance.py(1.38 KB)
📄 cc_scripts_per_instance.pyc(1.38 KB)
📄 cc_scripts_per_instance.pyo(1.38 KB)
📄 cc_scripts_per_once.py(1.31 KB)
📄 cc_scripts_per_once.pyc(1.31 KB)
📄 cc_scripts_per_once.pyo(1.31 KB)
📄 cc_scripts_user.py(1.42 KB)
📄 cc_scripts_user.pyc(1.38 KB)
📄 cc_scripts_user.pyo(1.38 KB)
📄 cc_scripts_vendor.py(1.38 KB)
📄 cc_scripts_vendor.pyc(1.46 KB)
📄 cc_scripts_vendor.pyo(1.46 KB)
📄 cc_seed_random.py(4.39 KB)
📄 cc_seed_random.pyc(4.53 KB)
📄 cc_seed_random.pyo(4.53 KB)
📄 cc_set_hostname.py(2.95 KB)
📄 cc_set_hostname.pyc(2.72 KB)
📄 cc_set_hostname.pyo(2.72 KB)
📄 cc_set_passwords.py(8.45 KB)
📄 cc_set_passwords.pyc(7.62 KB)
📄 cc_set_passwords.pyo(7.62 KB)
📄 cc_snap.py(8.11 KB)
📄 cc_snap.pyc(7.54 KB)
📄 cc_snap.pyo(7.54 KB)
📄 cc_snap_config.py(5.37 KB)
📄 cc_snap_config.pyc(5.03 KB)
📄 cc_snap_config.pyo(5.03 KB)
📄 cc_snappy.py(9.69 KB)
📄 cc_snappy.pyc(9.27 KB)
📄 cc_snappy.pyo(9.27 KB)
📄 cc_spacewalk.py(2.89 KB)
📄 cc_spacewalk.pyc(2.91 KB)
📄 cc_spacewalk.pyo(2.91 KB)
📄 cc_ssh.py(10.59 KB)
📄 cc_ssh.pyc(9.11 KB)
📄 cc_ssh.pyo(9.11 KB)
📄 cc_ssh_authkey_fingerprints.py(3.43 KB)
📄 cc_ssh_authkey_fingerprints.pyc(3.94 KB)
📄 cc_ssh_authkey_fingerprints.pyo(3.94 KB)
📄 cc_ssh_import_id.py(2.88 KB)
📄 cc_ssh_import_id.pyc(2.72 KB)
📄 cc_ssh_import_id.pyo(2.72 KB)
📄 cc_timezone.py(1.15 KB)
📄 cc_timezone.pyc(1.15 KB)
📄 cc_timezone.pyo(1.15 KB)
📄 cc_ubuntu_advantage.py(6.08 KB)
📄 cc_ubuntu_advantage.pyc(6.12 KB)
📄 cc_ubuntu_advantage.pyo(6.12 KB)
📄 cc_ubuntu_drivers.py(5.66 KB)
📄 cc_ubuntu_drivers.pyc(4.63 KB)
📄 cc_ubuntu_drivers.pyo(4.63 KB)
📄 cc_update_etc_hosts.py(3.33 KB)
📄 cc_update_etc_hosts.pyc(2.99 KB)
📄 cc_update_etc_hosts.pyo(2.99 KB)
📄 cc_update_hostname.py(1.58 KB)
📄 cc_update_hostname.pyc(1.66 KB)
📄 cc_update_hostname.pyo(1.66 KB)
📄 cc_users_groups.py(7.06 KB)
📄 cc_users_groups.pyc(6.76 KB)
📄 cc_users_groups.pyo(6.76 KB)
📄 cc_write_files.py(4.95 KB)
📄 cc_write_files.pyc(5.13 KB)
📄 cc_write_files.pyo(5.13 KB)
📄 cc_yum_add_repo.py(4.27 KB)
📄 cc_yum_add_repo.pyc(3.88 KB)
📄 cc_yum_add_repo.pyo(3.88 KB)
📄 cc_zypper_add_repo.py(7.62 KB)
📄 cc_zypper_add_repo.pyc(7.12 KB)
📄 cc_zypper_add_repo.pyo(7.12 KB)
📄 schema.py(14.06 KB)
📄 schema.pyc(13.83 KB)
📄 schema.pyo(13.83 KB)

Editing: cc_snap.py

# Copyright (C) 2018 Canonical Ltd.
#
# This file is part of cloud-init. See LICENSE file for license information.

"""Snap: Install, configure and manage snapd and snap packages."""

import sys
from textwrap import dedent

from cloudinit import log as logging
from cloudinit.config.schema import (
    get_schema_doc, validate_cloudconfig_schema)
from cloudinit.settings import PER_INSTANCE
from cloudinit.subp import prepend_base_command
from cloudinit import util

distros = ['ubuntu']
frequency = PER_INSTANCE

LOG = logging.getLogger(__name__)

schema = {
    'id': 'cc_snap',
    'name': 'Snap',
    'title': 'Install, configure and manage snapd and snap packages',
    'description': dedent("""\
        This module provides a simple configuration namespace in cloud-init to
        both setup snapd and install snaps.

.. note::
            Both ``assertions`` and ``commands`` values can be either a
            dictionary or a list. If these configs are provided as a
            dictionary, the keys are only used to order the execution of the
            assertions or commands and the dictionary is merged with any
            vendor-data snap configuration provided. If a list is provided by
            the user instead of a dict, any vendor-data snap configuration is
            ignored.

The ``assertions`` configuration option is a dictionary or list of
        properly-signed snap assertions which will run before any snap
        ``commands``. They will be added to snapd's assertion database by
        invoking ``snap ack <aggregate_assertion_file>``.

Snap ``commands`` is a dictionary or list of individual snap
        commands to run on the target system. These commands can be used to
        create snap users, install snaps and provide snap configuration.

.. note::
            If 'side-loading' private/unpublished snaps on an instance, it is
            best to create a snap seed directory and seed.yaml manifest in
            **/var/lib/snapd/seed/** which snapd automatically installs on
            startup.

**Development only**: The ``squashfuse_in_container`` boolean can be
        set true to install squashfuse package when in a container to enable
        snap installs. Default is false.
        """),
    'distros': distros,
    'examples': [dedent("""\
        snap:
            assertions:
              00: |
              signed_assertion_blob_here
              02: |
              signed_assertion_blob_here
            commands:
              00: snap create-user --sudoer --known <snap-user>@mydomain.com
              01: snap install canonical-livepatch
              02: canonical-livepatch enable <AUTH_TOKEN>
    """), dedent("""\
        # LXC-based containers require squashfuse before snaps can be installed
        snap:
            commands:
                00: apt-get install squashfuse -y
                11: snap install emoj

"""), dedent("""\
        # Convenience: the snap command can be omitted when specifying commands
        # as a list and 'snap' will automatically be prepended.
        # The following commands are equivalent:
        snap:
            commands:
                00: ['install', 'vlc']
                01: ['snap', 'install', 'vlc']
                02: snap install vlc
                03: 'snap install vlc'
    """)],
    'frequency': PER_INSTANCE,
    'type': 'object',
    'properties': {
        'snap': {
            'type': 'object',
            'properties': {
                'assertions': {
                    'type': ['object', 'array'],  # Array of strings or dict
                    'items': {'type': 'string'},
                    'additionalItems': False,  # Reject items non-string
                    'minItems': 1,
                    'minProperties': 1,
                    'uniqueItems': True
                },
                'commands': {
                    'type': ['object', 'array'],  # Array of strings or dict
                    'items': {
                        'oneOf': [
                            {'type': 'array', 'items': {'type': 'string'}},
                            {'type': 'string'}]
                    },
                    'additionalItems': False,  # Reject non-string & non-list
                    'minItems': 1,
                    'minProperties': 1,
                },
                'squashfuse_in_container': {
                    'type': 'boolean'
                }
            },
            'additionalProperties': False,  # Reject keys not in schema
            'required': [],
            'minProperties': 1
        }
    }
}

# TODO schema for 'assertions' and 'commands' are too permissive at the moment.
# Once python-jsonschema supports schema draft 6 add support for arbitrary
# object keys with 'patternProperties' constraint to validate string values.

__doc__ = get_schema_doc(schema)  # Supplement python help()

SNAP_CMD = "snap"
ASSERTIONS_FILE = "/var/lib/cloud/instance/snapd.assertions"

def add_assertions(assertions):
    """Import list of assertions.

Import assertions by concatenating each assertion into a
    string separated by a '\n'.  Write this string to a instance file and
    then invoke `snap ack /path/to/file` and check for errors.
    If snap exits 0, then all assertions are imported.
    """
    if not assertions:
        return
    LOG.debug('Importing user-provided snap assertions')
    if isinstance(assertions, dict):
        assertions = assertions.values()
    elif not isinstance(assertions, list):
        raise TypeError(
            'assertion parameter was not a list or dict: {assertions}'.format(
                assertions=assertions))

snap_cmd = [SNAP_CMD, 'ack']
    combined = "\n".join(assertions)

for asrt in assertions:
        LOG.debug('Snap acking: %s', asrt.split('\n')[0:2])

util.write_file(ASSERTIONS_FILE, combined.encode('utf-8'))
    util.subp(snap_cmd + [ASSERTIONS_FILE], capture=True)

def run_commands(commands):
    """Run the provided commands provided in snap:commands configuration.

Commands are run individually. Any errors are collected and reported
     after attempting all commands.

@param commands: A list or dict containing commands to run. Keys of a
         dict will be used to order the commands provided as dict values.
     """
    if not commands:
        return
    LOG.debug('Running user-provided snap commands')
    if isinstance(commands, dict):
        # Sort commands based on dictionary key
        commands = [v for _, v in sorted(commands.items())]
    elif not isinstance(commands, list):
        raise TypeError(
            'commands parameter was not a list or dict: {commands}'.format(
                commands=commands))

fixed_snap_commands = prepend_base_command('snap', commands)

cmd_failures = []
    for command in fixed_snap_commands:
        shell = isinstance(command, str)
        try:
            util.subp(command, shell=shell, status_cb=sys.stderr.write)
        except util.ProcessExecutionError as e:
            cmd_failures.append(str(e))
    if cmd_failures:
        msg = 'Failures running snap commands:\n{cmd_failures}'.format(
            cmd_failures=cmd_failures)
        util.logexc(LOG, msg)
        raise RuntimeError(msg)

# RELEASE_BLOCKER: Once LP: #1628289 is released on xenial, drop this function.
def maybe_install_squashfuse(cloud):
    """Install squashfuse if we are in a container."""
    if not util.is_container():
        return
    try:
        cloud.distro.update_package_sources()
    except Exception:
        util.logexc(LOG, "Package update failed")
        raise
    try:
        cloud.distro.install_packages(['squashfuse'])
    except Exception:
        util.logexc(LOG, "Failed to install squashfuse")
        raise

def handle(name, cfg, cloud, log, args):
    cfgin = cfg.get('snap', {})
    if not cfgin:
        LOG.debug(("Skipping module named %s,"
                   " no 'snap' key in configuration"), name)
        return

validate_cloudconfig_schema(cfg, schema)
    if util.is_true(cfgin.get('squashfuse_in_container', False)):
        maybe_install_squashfuse(cloud)
    add_assertions(cfgin.get('assertions', []))
    run_commands(cfgin.get('commands', []))

# vi: ts=4 expandtab

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