apt module

Table of Contents

• Overview
  • Upgrade Notice
• Requirements
• Classes
  • apt
  • apt::apticron
  • apt::cron::download
  • apt::cron::dist_upgrade
  • apt::dist_upgrade
  • apt::dist_upgrade::initiator
  • apt::dselect
  • apt::listchanges
  • apt::proxy_client
  • apt::reboot_required_notify
  • apt::unattended_upgrades
• Defines
  • apt::apt_conf
  • apt::preferences_snippet
  • apt::preseeded_package
  • apt::sources_list
  • apt::key
  • apt::key::plain
  • apt::upgrade_package
• Resources
  • File['apt_config']
  • Exec['apt_updated']
• Tests
  • Acceptance Tests
• Licensing

Overview

This module manages apt on Debian.

It keeps dpkg's and apt's databases as well as the keyrings for securing package download current.

backports.debian.org is added.

/etc/apt/sources.list and /etc/apt/preferences are managed. More recent Debian releases are pinned to very low values by default to prevent accidental upgrades.

Ubuntu support is lagging behind but not absent either.

Upgrade Notice

• The default value of the $repos parameter was removed since the logic is now in the apt::params class. If you have explicitly set $repos to 'auto' in your manifests, you should remove this.

• The disable_update parameter has been removed. The main apt class defaults to not run an apt-get update on every run anyway so this parameter seems useless. You can include the apt::update class if you want it to be run every time.

• The apt::upgrade_package now doesn't automatically call an Exec['apt_updated'] anymore, so you would need to include apt::update now by hand.

• The apt::codename parameter has been removed. In its place, the debian_codename fact may be overridden via an environment variable. This will affect all other debian_* facts, and achieve the same result.

  FACTER_debian_codename=jessie puppet agent -t

• If you were using custom 50unattended-upgrades.${::lsbdistcodename} in your site_apt, these are no longer supported. You should migrate to passing $blacklisted_packages to the apt::unattended_upgrades class.

• the apt class has been moved to a paramterized class. if you were including this class before, after passing some variables, you will need to move to instantiating the class with those variables instead. For example, if you had the following in your manifests:

  $apt_debian_url = 'http://localhost:9999/debian/' $apt_use_next_release = true include apt

  you will need to remove the variables, and the include and instead do the following:

  class { 'apt': debian_url => 'http://localhost:9999/debian/', use_next_release => true; }

  previously, you could manually set $lsbdistcodename which would enable forced upgrades, but because this is a top-level facter variable, and newer puppet versions do not let you assign variables to other namespaces, this is no longer possible. However, there is a way to obtain this functionality, and that is to pass the 'codename' parameter to the apt class, which will change the sources.list and preferences files to be the codename you set, allowing you to trigger upgrades:

  include apt::dist_upgrade class { 'apt': codename => 'wheezy', notify => Exec['apt_dist-upgrade']; }

• the apticron class has been moved to a parameterized class. if you were including this class before, you will need to move to instantiating the class instead. For example, if you had the following in your manifests:

  $apticron_email = 'foo@example.com' $apticron_notifynew = '1' ... any $apticron_* variables include apticron

  you will need to remove the variables, and the include and instead do the following:

  class { 'apt::apticron': email => 'foo@example.com', notifynew => '1'; }

• the apt::listchanges class has been moved to a paramterized class. if you were including this class before, after passing some variables, you will need to move to instantiating the class with those variables instead. For example, if you had the following in your manifests:

  $apt_listchanges_email = 'foo@example.com' ... any $apt_listchanges_* variables include apt::listchanges

  you will need to remove the variables, and the include and instead do the following:

  class { 'apt::listchanges': email => 'foo@example.com'; }

• the apt::proxy_client class has been moved to a paramterized class. if you were including this class before, after passing some variables, you will need to move to instantiating the class with those variables instead. For example, if you had the following in your manifests:

  $apt_proxy = 'http://proxy.domain' $apt_proxy_port = 666 include apt::proxy_client

  you will need to remove the variables, and the include and instead do the following:

  class { 'apt::proxy_client': proxy => 'http://proxy.domain', port => '666'; }

Requirements

This module needs:

• the lsb-release package should be installed on the server prior to running puppet. otherwise, all of the $::lsb* facts will be empty during runs.

• the common module

By default, on normal hosts, this module sets the configuration option DSelect::Clean to 'auto'. On virtual servers, the value is set by default to 'pre-auto', because virtual servers are usually more space-bound and have better recovery mechanisms via the host:

From apt.conf(5), 0.7.2: "Cache Clean mode; this value may be one of always, prompt, auto, pre-auto and never. always and prompt will remove all packages from the cache after upgrading, prompt (the default) does so conditionally. auto removes only those packages which are no longer downloadable (replaced with a new version for instance). pre-auto performs this action before downloading new packages."

To change the default setting for DSelect::Clean, you can create a file named "03clean" or "03clean_vserver" in your site_apt module's files directory. You can also define this for a specific host by creating a file in a subdirectory of the site_apt modules' files directory that is named the same as the host. (example: site_apt/files/some.host.com/03clean, or site_apt/files/some.host.com/03clean_vserver)

Classes

apt

The apt class sets up most of the documented functionality. To use functionality that is not enabled by default, you must set one of the following parameters.

Example usage:

class { 'apt':
  use_next_release => true,
  debian_url       => 'http://localhost:9999/debian/',
}

Class parameters:

use_lts

If this variable is set to true the CODENAME-lts sources (such as squeeze-lts) are added.

By default this is false for backward compatibility with older versions of this module.

use_volatile

If this variable is set to true the CODENAME-updates sources (such as squeeze-updates) are added.

By default this is false for backward compatibility with older versions of this module.

include_src

If this variable is set to true a deb-src source is added for every added binary archive source.

By default this is false for backward compatibility with older versions of this module.

use_next_release

If this variable is set to true the sources for the next Debian release are added. The default pinning configuration pins it to very low values.

By default this is false for backward compatibility with older versions of this module.

debian_url, security_url, backports_url, volatile_url

These variables allow to override the default APT mirrors respectively used for the standard Debian archives, the Debian security archive, the Debian official backports and the Debian Volatile archive.

ubuntu_url

These variables allows to override the default APT mirror used for all standard Ubuntu archives (including updates, security, backports).

repos

If this variable is set the default repositories list ("main contrib non-free") is overriden.

custom_preferences

For historical reasons (Debian Lenny's version of APT did not support the use of the preferences.d directory for putting fragments of 'preferences'), this module will manage a default generic apt/preferences file with more recent releases pinned to very low values so that any package installation will not accidentally pull in packages from those suites unless you explicitly specify the version number. This file will be complemented with all of the preferences_snippet calls (see below).

If the default preferences template doesn't suit your needs, you can create a template located in your site_apt module, and set custom_preferences with the content (eg. custom_preferences => template('site_apt/preferences') )

Setting this variable to false before including this class will force the apt/preferences file to be absent:

class { 'apt':
  custom_preferences => false,
}

custom_sources_list

By default this module will use a basic apt/sources.list template with a generic Debian mirror. If you need to set more specific sources, e.g. changing the sections included in the source, etc. you can set this variable to the content that you desire to use instead.

For example, setting this variable will pull in the templates/site_apt/sources.list file:

class { 'apt':
  custom_sources_list => template('site_apt/sources.list'),
}

custom_key_dir

If you have different apt-key files that you want to get added to your apt keyring, you can set this variable to a path in your fileserver where individual key files can be placed. If this is set and keys exist there, this module will apt-key add each key.

The debian-archive-keyring package is installed and kept current up to the latest revision (this includes the backports archive keyring).

apt::apticron

When you instantiate this class, apticron will be installed, with the following defaults, which you are free to change:

$ensure_version = 'installed',
$config = "apt/${::operatingsystem}/apticron_${::lsbdistcodename}.erb",
$email = 'root',
$diff_only = '1',
$listchanges_profile = 'apticron',
$system = false,
$ipaddressnum = false,
$ipaddresses = false,
$notifyholds = '0',
$notifynew = '0',
$customsubject = ''

Example usage:

class { 'apt::apticron':
  email     => 'foo@example.com',
  notifynew => '1',
}

apt::cron::download

This class sets up cron-apt so that it downloads upgradable packages, does not actually do any upgrade and emails when the output changes.

cron-apt defaults to run at 4 AM. You may want to set the $apt_cron_hours variable before you include the class: its value will be passed as the "hours" parameter of a cronjob. Example:

# Run cron-apt every three hours
$apt_cron_hours = '*/3'

Note that the default 4 AM cronjob won't be disabled.

apt::cron::dist_upgrade

This class sets up cron-apt so that it dist-upgrades the system and emails when upgrades are performed.

See apt::cron::download above if you need to run cron-apt more often than once a day.

apt::dist_upgrade

This class provides the Exec['apt_dist-upgrade'] resource that dist-upgrade's the system.

This exec is set as refreshonly so including this class does not trigger any action per-se: other resources may notify it, other classes may inherit from this one and add to its subscription list using the plusignment (+>) operator. A real-world example can be seen in the apt::dist_upgrade::initiator source.

apt::dist_upgrade::initiator

This class automatically dist-upgrade's the system when an initiator file's content changes. The initiator file is copied from the first available source amongst the following ones, in decreasing priority order:

• puppet:///modules/site_apt/${::fqdn}/upgrade_initiator

• puppet:///modules/site_apt/upgrade_initiator

• puppet:///modules/apt/upgrade_initiator

This is useful when one does not want to setup a fully automated upgrade process but still needs a way to manually trigger full upgrades of any number of systems at scheduled times.

Beware: a dist-upgrade is triggered the first time Puppet runs after this class has been included. This is actually the single reason why this class is not enabled by default.

When this class is included the APT indexes are updated on every Puppet run due to the author's lack of Puppet wizardry.

apt::dselect

This class, when included, installs dselect and switches it to expert mode to suppress superfluous help screens.

apt::listchanges

This class, when instantiated, installs apt-listchanges and configures it using the following parameterized variables, which can be changed:

version = 'present'
config = "apt/${::operatingsystem}/listchanges_${::lsbrelease}.erb"
frontend = 'pager'
email = 'root'
confirm = 0
saveseen = '/var/lib/apt/listchanges.db'
which = 'both'

Example usage:

class { 'apt::listchanges':
  email => 'foo@example.com',
}

apt::proxy_client

This class adds the right configuration to apt to make it fetch packages via a proxy. The class parameters apt_proxy and apt_proxy_port need to be set:

You can set the proxy class parameter variable to the URL of the proxy that will be used. By default, the proxy will be queried on port 3142, but you can change the port number by setting the port class parameter.

Example usage:

class { 'apt::proxy_client':
  proxy => 'http://proxy.domain',
  port  => '666',
}

apt::reboot_required_notify

This class installs a daily cronjob that checks if a package upgrade requires the system to be rebooted; if so, cron sends a notification email to root.

apt::unattended_upgrades

If this class is included, it will install the package unattended-upgrades and configure it to daily upgrade the system.

The class has the following parameters that you can use to change the contents of the configuration file. The values shown here are the default values:

$config_content = undef
$config_template = 'apt/50unattended-upgrades.erb'
$mailonlyonerror = true
$mail_recipient = 'root'
$blacklisted_packages = []

Note that using $config_content actually specifies all of the configuration contents and thus makes the other parameters useless.

Example usage:

class { 'apt::unattended_upgrades':
  config_template      => 'site_apt/50unattended-upgrades.jessie',
  blacklisted_packages => [ 'libc6', 'libc6-dev', 'libc6-i686',
                            'mysql-server', 'redmine', 'nodejs', 'bird' ],
}

Defines

apt::apt_conf

Creates a file in the apt/apt.conf.d directory to easily add configuration components. One can use either the source meta-parameter to specify a list of static files to include from the puppet fileserver or the content meta-parameter to define content inline or with the help of a template.

Example usage:

apt::apt_conf { '80download-only':
  source => 'puppet:///modules/site_apt/80download-only',
}

apt::preferences_snippet

A way to add pinning information to files in /etc/apt/preferences.d/

Examples:

apt::preferences_snippet { 'irssi-plugin-otr':
  release  => 'squeeze-backports',
  priority => 999,
}

apt::preferences_snippet { 'unstable_fallback':
  package  => '*',
  release  => 'unstable',
  priority => 1,
}

apt::preferences_snippet { 'ttdnsd':
  pin      => 'origin deb.torproject.org',
  priority => 999,
}

The names of the resources will be used as the names of the files in the preferences.d directory, so you should ensure that resource names follow the prescribed naming scheme.

From apt_preferences(5): Note that the files in the /etc/apt/preferences.d directory are parsed in alphanumeric ascending order and need to obey the following naming convention: The files have no or "pref" as filename extension and which only contain alphanumeric, hyphen (-), underscore (_) and period (.) characters - otherwise they will be silently ignored.

apt::preseeded_package

This simplifies installation of packages for which you wish to preseed the answers to debconf. For example, if you wish to provide a preseed file for the locales package, you would place the locales.seed file in site_apt/templates/${::lsbdistcodename}/locales.seeds and then include the following in your manifest:

apt::preseeded_package { locales: }

You can also specify the content of the seed via the content parameter, for example:

apt::preseeded_package { 'apticron':
  content => 'apticron apticron/notification string root@example.com',
}

apt::sources_list

Creates a file in the apt/sources.list.d directory to easily add additional apt sources. One can use either the source meta-parameter to specify a list of static files to include from the puppet fileserver or the content meta-parameter to define content inline or with the help of a template. Ending the resource name in .list is optional: it will be automatically added to the file name if not present in the resource name.

Example usage:

apt::sources_list { 'company_internals':
  source => [ "puppet:///modules/site_apt/${::fqdn}/company_internals.list",
              'puppet:///modules/site_apt/company_internals.list' ];
}

apt::key

Deploys a secure apt OpenPGP key. This usually accompanies the sources.list snippets above for third party repositories. For example, you would do:

apt::key {
  'neurodebian.gpg':
    ensure => present,
    source => 'puppet:///modules/site_apt/neurodebian.gpg';
}

This deploys the key in the /etc/apt/trusted.gpg.d directory, which is assumed by secure apt to be binary OpenPGP keys and not "ascii-armored" or "plain text" OpenPGP key material. For the latter, use apt::key::plain.

The .gpg extension is compulsory for apt to pickup the key properly.

apt::key::plain

Deploys a secure apt OpenPGP key. This usually accompanies the sources.list snippets above for third party repositories. For example, you would do:

apt::key::plain { 'neurodebian.asc':
  source => 'puppet:///modules/site_apt/neurodebian.asc';
}

This deploys the key in the ${apt_base_dir}/keys directory (as opposed to $custom_key_dir which deploys it in keys.d). The reason this exists on top of $custom_key_dir is to allow a more decentralised distribution of those keys, without having all modules throw their keys in the same directory in the manifests.

Note that this model does not currently allow keys to be removed! Use apt::key instead for a more practical, revokable approach, but that needs binary keys.

apt::upgrade_package

This simplifies upgrades for DSA security announcements or point-releases. This will ensure that the named package is upgraded to the version specified, only if the package is installed, otherwise nothing happens. If the specified version is 'latest' (the default), then the package is ensured to be upgraded to the latest package revision when it becomes available.

For example, the following upgrades the perl package to version 5.8.8-7etch1 (if it is installed), it also upgrades the syslog-ng and perl-modules packages to their latest (also, only if they are installed):

upgrade_package {
  'perl':
    version => '5.8.8-7etch1';
  'syslog-ng':
    version => latest;
  'perl-modules':
}

Resources

File['apt_config']

Use this resource to depend on or add to a completed apt configuration

Exec['apt_updated']

After this point the APT indexes are up-to-date. This resource is set to refreshonly => true so it is not run on every puppetrun. To run this every time, you can include the apt::update class.

This resource is usually used like this to ensure current packages are installed by Package resources:

include apt::update
Package {
  require => Exec['apt_updated']
}

Note that nodes can be updated once a day by using

APT::Periodic::Update-Package-Lists "1";

in i.e. /etc/apt/apt.conf.d/80_apt_update_daily.

Tests

To run pupept rspec tests:

bundle install --path vendor/bundle
bundle exec rake spec

Verbose Output:

bundle exec rake spec SPEC_OPTS='--format documentation'

Using different facter/puppet versions:

FACTER_GEM_VERSION=1.6.10 PUPPET_GEM_VERSION=2.7.23 bundle install --path vendor/bundle
bundle exec rake spec

Acceptance Tests

At the moment, we use beaker together with docker to do acceptance testing. Be sure to have a recent docker version installed.

List configured nodesets:

bundle exec rake beaker_nodes

Run tests on default node (Debian Jessie):

bundle exec rake beaker

Run different nodeset:

BEAKER_set="debian-8-x86_64-docker" bundle exec rspec spec/acceptance/*_spec.rb

Licensing

This puppet module is licensed under the GPL version 3 or later. Redistribution and modification is encouraged.

The GPL version 3 license text can be found in the "LICENSE" file accompanying this puppet module, or at the following URL:

http://www.gnu.org/licenses/gpl-3.0.html