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Puppet module to help manage Apt
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README.md

apt

Overview

The apt module provides a simple interface for managing Apt source, key, and definitions with Puppet.

Module Description

The apt module automates obtaining and installing software packages on *nix systems.

Note: While this module allows the use of short keys, warnings are thrown if a full fingerprint is not used, as they pose a serious security issue by opening you up to collision attacks.

Setup

What apt affects:

  • Package/service/configuration files for Apt
  • Your system's sources.list file and sources.list.d directory
  • System repositories
  • Authentication keys

Beginning with apt

To begin using the apt module with default parameters, declare the class with include apt.

Any Puppet code that uses anything from the apt module requires that the core apt class be declared.

Usage

Using the apt module consists predominantly of declaring classes and defined types that provide the desired functionality and features. This module provides common resources and options that are shared by the various defined types in the apt module, so you must always include this class in your manifests.

class { 'apt': }

Reference

Classes

  • apt: Main class, provides common resources and options. Allows Puppet to manage your system's sources.list file and sources.list.d directory. By default, it will not purge existing content it finds that wasn't declared with Puppet.

    • apt::backports: This class adds the necessary components to get backports for Ubuntu and Debian. The release name defaults to "$lsbdistcodename-backports". Setting this manually can cause undefined and potentially serious behavior.

      By default, this class drops a pin-file for backports, pinning it to a priority of 200. This is lower than the normal Debian archive, which gets a priority of 500 to ensure that packages with ensure => latest don't get magically upgraded from backports without your explicit permission.

      If you raise the priority through the pin parameter to 500---identical to the rest of the Debian mirrors---normal policy goes into effect, and Apt installs or upgrades to the newest version. This means that if a package is available from backports, it and its dependencies are pulled in from backports unless you explicitly set the ensure attribute of the package resource to installed/present or a specific version.

  • apt::params: Sets defaults for the apt module parameters.

  • apt::update: Runs apt-get update, updating the list of available packages and their versions without installing or upgrading any packages. The update runs on the first Puppet run after you include the class, then whenever notify => Exec['apt_update'] occurs; i.e., whenever config files get updated or other relevant changes occur. If you set update['frequency'] to 'always', the update runs on every Puppet run.

Types

  • apt_key

    A native Puppet type and provider for managing GPG keys for Apt is provided by this module.

    apt_key { 'puppetlabs':
      ensure => 'present',
      id     => '47B320EB4C7C375AA9DAE1A01054B7A24BD6EC30',
    }

    You can additionally set the following attributes:

    • source: HTTP, HTTPS or FTP location of a GPG key or path to a file on the target host.
    • content: Instead of pointing to a file, pass the key in as a string.
    • server: The GPG key server to use. It defaults to keyserver.ubuntu.com.
    • options: Additional options to pass to apt-key's --keyserver-options.

Defined Types

  • apt::conf: Specifies a custom configuration file. The priority defaults to 50, but you can set the priority parameter to load the file earlier or later. The content parameter passes specified content, if any, into the file resource.

  • apt::key: Adds a key to the list of keys used by Apt to authenticate packages. This type uses the aforementioned apt\_key native type. As such, it no longer requires the wget command on which the old implementation depended.

    apt::key { 'puppetlabs':
      id     => '47B320EB4C7C375AA9DAE1A01054B7A24BD6EC30',
      server => 'pgp.mit.edu',
    }
    
    apt::key { 'jenkins':
      id     => '150FDE3F7787E7D11EF4E12A9B7D32F2D50582E6',
      source => 'http://pkg.jenkins-ci.org/debian/jenkins-ci.org.key',
    }
  • apt::pin: Defined type that adds an Apt pin for a certain release.

    apt::pin { 'karmic': priority => 700 }
    apt::pin { 'karmic-updates': priority => 700 }
    apt::pin { 'karmic-security': priority => 700 }

    Note that you can also specify more complex pins using distribution properties.

    apt::pin { 'stable':
      priority        => -10,
      originator      => 'Debian',
      release_version => '3.0',
      component       => 'main',
      label           => 'Debian'
    }

    If you want to pin a number of packages, you can specify the packages as a space-delimited string using the packages attribute, or you can pass in an array of package names.

  • apt::ppa: Adds a PPA repository using add-apt-repository. For example, apt::ppa { 'ppa:drizzle-developers/ppa': }.

  • apt::setting: Defined type to abstract the creation of Apt configuration files.

  • apt::source: Adds an Apt source to /etc/apt/sources.list.d/. For example:

    apt::source { 'debian_unstable':
      comment  => 'This is the iWeb Debian unstable mirror',
      location => 'http://debian.mirror.iweb.ca/debian/',
      release  => 'unstable',
      repos    => 'main contrib non-free',
      pin      => '-10',
      key      => {
        'id'     => 'A1BD8E9D78F7FE5C3E65D8AF8B48AD6246925553',
        'server' => 'subkeys.pgp.net',
      },
      include  => {
        'src' => true,
        'deb' => true,
      },
    }

    For example, to configure your system so the source is the Puppet Labs Apt repository:

    apt::source { 'puppetlabs':
      location => 'http://apt.puppetlabs.com',
      repos    => 'main',
      key      => {
        'id'     => '47B320EB4C7C375AA9DAE1A01054B7A24BD6EC30',
        'server' => 'pgp.mit.edu',
      },

Facts

The apt module includes a few facts to describe the state of the Apt system:

  • apt\_updates: The number of updates available on the system
  • apt\_security\_updates: The number of updates which are security updates
  • apt\_package\_updates: The package names that are available for update. In Facter 2.0 and later, this will be a list type; in earlier versions, it is a comma-delimited string.
  • apt\_update\_last\_success: The date, in epochtime, of the most recent successful apt-get update run. This is determined by reading the mtime of /var/lib/apt/periodic/update-success-stamp.

Note: The facts depend on 'update-notifier' being installed on your system. Though this is a GNOME daemon only the support files are needed so the package 'update-notifier-common' is enough to enable this functionality.

Hiera example

apt::sources:
  'debian_unstable':
    location: 'http://debian.mirror.iweb.ca/debian/'
    release: 'unstable'
    repos: 'main contrib non-free'
    key:
      id: '9AA38DCD55BE302B'
      server: 'subkeys.pgp.net'
    pin: '-10'
    include:
      src: true
      deb: true

  'puppetlabs':
    location: 'http://apt.puppetlabs.com'
    repos: 'main'
    key:
      id: '47B320EB4C7C375AA9DAE1A01054B7A24BD6EC30'
      server: 'pgp.mit.edu'

Parameters

apt

  • update: Hash to configure various update settings. Valid keys are:
    • 'frequency': The run frequency for apt-get update. Defaults to 'reluctantly'. Accepts the following values:
      • 'always': Runs update at every Puppet run.
      • 'daily': Runs update daily; that is, apt-get update runs if the value of apt\_update\_last\_success is less than current epoch time - 86400. If the exec resource apt\_update is notified, apt-get update runs regardless of this value.
      • 'weekly': Runs update weekly; that is, apt-get update runs if the value of apt\_update\_last\_success is less than current epoch time - 604800. If the exec resource apt\_update is notified, apt-get update runs regardless of this value.
      • 'reluctantly': Only runs apt-get update if the exec resource apt\_update is notified. This is the default setting.
    • 'timeout': Overrides the exec timeout in seconds for apt-get update. Defaults to exec default (300).
    • 'tries': Sets how many times to attempt running apt-get update. Use this to work around transient DNS and HTTP errors. By default, the command runs only once.
  • purge: Hash to configure various purge settings. Valid keys are:
    • 'sources.list': If set to 'true', Puppet purges all unmanaged entries from sources.list. Accepts true or false. Defaults to false.
    • 'sources.list.d': If set to 'true', Puppet purges all unmanaged entries from sources.list.d. Accepts true or false. Defaults to false.
    • 'preferences.list': If set to 'true', Puppet purges all unmanaged entries from preferences.list. Accepts true or false. Defaults to false.
    • 'preferences.list.d': If set to 'true', Puppet purges all unmanaged entries from preferences.list.d. Accepts true or false. Defaults to false.
  • proxy: Hash to configure various proxy settings. Valid keys are:
    • 'host': Configures a proxy host and stores the configuration in /etc/apt/apt.conf.d/01proxy.
    • 'port': Configures a proxy port and stores the configuration in /etc/apt/apt.conf.d/01proxy.
    • 'https': Boolean to configure whether or not to enable https proxies. Defaults to false.
  • keys: Passes a hash to create\_resource to make new apt::key resources.
  • ppas: Passes a hash to create\_resource to make new apt::ppa resources.
  • settings: Passes a hash to create\_resource to make new apt::setting resources.
  • sources: Passes a hash to create\_resource to make new apt::source resources.

apt::backports

  • location: The URL of the apt repository. OS-dependent defaults are specifed in apt::params for Ubuntu and Debian. Required parameter for other OSes.
  • release: The distribution of the apt repository. Defaults to "${lsbdistcodename}-backports" for Ubuntu and Debian. Required parameter for other OSes.
  • repos: The component of the apt repository. OS-dependent defaults are speicifed in apt::params for Ubuntu and Debian. Required parameter for other OSes.
  • key: The key for the backports repository. Can either be a string or a hash. See apt::setting for details on passing key as a hash. OS-dependent defaults are specified in apt::params for Ubuntu and Debian. Required parameter for other OSes.
  • pin: The pin priority for backports repository. Can either be a number, a string, or a hash that will be passed as parameters to apt::pin. Defaults to 200.

apt::conf

  • content: The content of the configuration file.
  • ensure: Whether the configuration file should be 'present' or 'absent'. Defaults to 'present'.
  • priority: Numeric priority for the configuration file. Defaults to '50'.

apt::key

  • ensure: The state we want this key in. Can be 'present' or 'absent'.
  • id: Is a GPG key ID or full key fingerprint. This value is validated with a regex enforcing it to only contain valid hexadecimal characters, be precisely 8 or 16 hexadecimal characters long and optionally prefixed with 0x for key IDs, or 40 hexadecimal characters long for key fingerprints.
  • content: This parameter can be used to pass in a GPG key as a string in case it cannot be fetched from a remote location and using a file resource is for other reasons inconvenient.
  • source: This parameter can be used to pass in the location of a GPG key. This URI can take the form of a URL (ftp, http or https) and a path (absolute path to a file on the target system).
  • server: The keyserver from where to fetch our GPG key. It can either be a domain name or URL. It defaults to 'keyserver.ubuntu.com'.
  • options: Additional options to pass on to apt-key adv --keyserver-options.

apt::pin

  • ensure: The state we want this pin in. Can be 'present' or 'absent'.
  • explanation: Add a comment. Defaults to ${caller\_module\_name}: ${name}.
  • order: The order of the file name. Defaults to undef, otherwise must be an integer.
  • packages: The list of packages to pin. Defaults to '*'. Can be an array or string.
  • priority: Several versions of a package may be available for installation when the sources.list(5) file contains references to more than one distribution (for example, stable and testing). APT assigns a priority to each version that is available. Subject to dependency constraints, apt-get selects the version with the highest priority for installation.
  • release: The Debian release. Defaults to ''. Typical values can be 'stable', 'testing' and 'unstable'.
  • origin: Can be used to match a hostname. The following record will assign a high priority to all versions available from the server identified by the hostname. Defaults to ''.
  • version: The specific form assigns a priority (a "Pin-Priority") to one or more specified packages with a specified version or version range.
  • codename: The distribution (lsbdistcodename) of the apt repository. Defaults to ''.
  • release\_version: Names the release version. For example, the packages in the tree might belong to Debian release version 7. Defaults to ''.
  • component: Names the licensing component associated with the packages in the directory tree of the Release file. defaults to ''. Typical values can be 'main', 'dependencies' and 'restricted'
  • originator: Names the originator of the packages in the directory tree of the Release file. Defaults to ''. Most commonly, this is Debian.
  • label: Names the label of the packages in the directory tree of the Release file. Defaults to ''. Most commonly, this is Debian.

Note: Parameters release, origin, and version are mutually exclusive.

It is recommended to read the manpage 'apt_preferences(5)'

apt::ppa

  • ensure: Whether we are adding or removing the PPA. Can be 'present' or 'absent'. Defaults to 'present'.
  • release: The codename for the operating system you're running. Defaults to $lsbdistcodename. Required if lsb-release is not installed.
  • options: Options to be passed to the apt-add-repository command. OS-dependent defaults are set in apt::params.
  • package\_name: The package that provides the apt-add-repository command. OS-dependent defaults are set in apt::params.
  • package\_manage: Whether or not to manage the package providing apt-add-repository. Defaults to true.

apt::setting

  • priority: Integer or zero-padded integer setting the file priority. Defaults to 50.
  • ensure: Whether to add or remove the file. Valid values are 'present', 'absent', and 'file'. Defaults to file.
  • source: The source for the file. Exactly one of content and source must be specified.
  • content: The content for the file. Exactly one of content and source must be specified.
  • notify\_update: Boolean for whether or not this apt::setting should trigger an apt-get update. Defaults to true.

apt::source

  • comment: Add a comment to the apt source file.
  • ensure: Allows you to remove the apt source file. Can be 'present' or 'absent'.
  • location: The URL of the apt repository. Defaults to undef. Required unless ensure => 'absent'.
  • release: The distribution of the apt repository. Defaults to fact 'lsbdistcodename'.
  • repos: The component of the apt repository. This defaults to 'main'.
  • include: Hash to configure include options. Valid keys are:
    • 'deb': References a Debian distribution's binary package. Defaults to true.
    • 'src': Enable the deb-src type, references a Debian distribution's source code in the same form as the include['deb'] type. A deb-src line is required to fetch source indexes. Defaults to false.
  • key: Add key from source. Takes either a string or a hash. If a string, the value will be passed to id in the apt::key. If a hash, valid keys are:
    • 'id': See id in apt::key. Required if a hash is specified.
    • 'server': See server in apt::key
    • 'content': See content in apt::key
    • 'source': See source in apt::key
    • 'options': See options in apt::key
  • pin: See apt::pin. Defaults to undef. Can be a string, number, or a hash to be passed as parameters to apt::pin.
  • architecture: can be used to specify for which architectures information should be downloaded. If this option is not set all architectures defined by the APT::Architectures option will be downloaded. Defaults to undef which means all. Example values can be 'i386' or 'i386,alpha,powerpc'.
  • allow\_unsigned: can be set to indicate that packages from this source are always authenticated even if the Release file is not signed or the signature can't be checked. Defaults to false. Can be true or false.

Limitations

This module should work across all versions of Debian/Ubuntu and support all major Apt repository management features.

Development

Puppet Labs modules on the Puppet Forge are open projects, and community contributions are essential for keeping them great. We can't access the huge number of platforms and myriad of hardware, software, and deployment configurations that Puppet is intended to serve.

We want to keep it as easy as possible to contribute changes so that our modules work in your environment. There are a few guidelines that we need contributors to follow so that we can have a chance of keeping on top of things.

You can read the complete module contribution guide on the Puppet Labs wiki.

License

The original code for this module comes from Evolving Web and was licensed under the MIT license. Code added since the fork of this module is licensed under the Apache 2.0 License like the rest of the Puppet Labs products.

The LICENSE contains both licenses.

Contributors

A lot of great people have contributed to this module. A somewhat current list follows:

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