| Current File : //lib/python2.7/site-packages/cloudinit/config/cc_apt_configure.pyc |
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Apt Configure
-------------
**Summary:** configure apt
This module handles both configuration of apt options and adding source lists.
There are configuration options such as ``apt_get_wrapper`` and
``apt_get_command`` that control how cloud-init invokes apt-get.
These configuration options are handled on a per-distro basis, so consult
documentation for cloud-init's distro support for instructions on using
these config options.
.. note::
To ensure that apt configuration is valid yaml, any strings containing
special characters, especially ``:`` should be quoted.
.. note::
For more information about apt configuration, see the
``Additional apt configuration`` example.
**Preserve sources.list:**
By default, cloud-init will generate a new sources list in
``/etc/apt/sources.list.d`` based on any changes specified in cloud config.
To disable this behavior and preserve the sources list from the pristine image,
set ``preserve_sources_list`` to ``true``.
.. note::
The ``preserve_sources_list`` option overrides all other config keys that
would alter ``sources.list`` or ``sources.list.d``, **except** for
additional sources to be added to ``sources.list.d``.
**Disable source suites:**
Entries in the sources list can be disabled using ``disable_suites``, which
takes a list of suites to be disabled. If the string ``$RELEASE`` is present in
a suite in the ``disable_suites`` list, it will be replaced with the release
name. If a suite specified in ``disable_suites`` is not present in
``sources.list`` it will be ignored. For convenience, several aliases are
provided for ``disable_suites``:
- ``updates`` => ``$RELEASE-updates``
- ``backports`` => ``$RELEASE-backports``
- ``security`` => ``$RELEASE-security``
- ``proposed`` => ``$RELEASE-proposed``
- ``release`` => ``$RELEASE``
.. note::
When a suite is disabled using ``disable_suites``, its entry in
``sources.list`` is not deleted; it is just commented out.
**Configure primary and security mirrors:**
The primary and security archive mirrors can be specified using the ``primary``
and ``security`` keys, respectively. Both the ``primary`` and ``security`` keys
take a list of configs, allowing mirrors to be specified on a per-architecture
basis. Each config is a dictionary which must have an entry for ``arches``,
specifying which architectures that config entry is for. The keyword
``default`` applies to any architecture not explicitly listed. The mirror url
can be specified with the ``uri`` key, or a list of mirrors to check can be
provided in order, with the first mirror that can be resolved being selected.
This allows the same configuration to be used in different environment, with
different hosts used for a local apt mirror. If no mirror is provided by
``uri`` or ``search``, ``search_dns`` may be used to search for dns names in
the format ``<distro>-mirror`` in each of the following:
- fqdn of this host per cloud metadata
- localdomain
- domains listed in ``/etc/resolv.conf``
If there is a dns entry for ``<distro>-mirror``, then it is assumed that there
is a distro mirror at ``http://<distro>-mirror.<domain>/<distro>``. If the
``primary`` key is defined, but not the ``security`` key, then then
configuration for ``primary`` is also used for ``security``. If ``search_dns``
is used for the ``security`` key, the search pattern will be.
``<distro>-security-mirror``.
If no mirrors are specified, or all lookups fail, then default mirrors defined
in the datasource are used. If none are present in the datasource either the
following defaults are used:
- primary: ``http://archive.ubuntu.com/ubuntu``
- security: ``http://security.ubuntu.com/ubuntu``
**Specify sources.list template:**
A custom template for rendering ``sources.list`` can be specefied with
``sources_list``. If no ``sources_list`` template is given, cloud-init will
use sane default. Within this template, the following strings will be replaced
with the appropriate values:
- ``$MIRROR``
- ``$RELEASE``
- ``$PRIMARY``
- ``$SECURITY``
**Pass configuration to apt:**
Apt configuration can be specified using ``conf``. Configuration is specified
as a string. For multiline apt configuration, make sure to follow yaml syntax.
**Configure apt proxy:**
Proxy configuration for apt can be specified using ``conf``, but proxy config
keys also exist for convenience. The proxy config keys, ``http_proxy``,
``ftp_proxy``, and ``https_proxy`` may be used to specify a proxy for http, ftp
and https protocols respectively. The ``proxy`` key also exists as an alias for
``http_proxy``. Proxy url is specified in the format
``<protocol>://[[user][:pass]@]host[:port]/``.
**Add apt repos by regex:**
All source entries in ``apt-sources`` that match regex in
``add_apt_repo_match`` will be added to the system using
``add-apt-repository``. If ``add_apt_repo_match`` is not specified, it defaults
to ``^[\w-]+:\w``
**Add source list entries:**
Source list entries can be specified as a dictionary under the ``sources``
config key, with key in the dict representing a different source file. The key
of each source entry will be used as an id that can be referenced in
other config entries, as well as the filename for the source's configuration
under ``/etc/apt/sources.list.d``. If the name does not end with ``.list``,
it will be appended. If there is no configuration for a key in ``sources``, no
file will be written, but the key may still be referred to as an id in other
``sources`` entries.
Each entry under ``sources`` is a dictionary which may contain any of the
following optional keys:
- ``source``: a sources.list entry (some variable replacements apply)
- ``keyid``: a key to import via shortid or fingerprint
- ``key``: a raw PGP key
- ``keyserver``: alternate keyserver to pull ``keyid`` key from
The ``source`` key supports variable replacements for the following strings:
- ``$MIRROR``
- ``$PRIMARY``
- ``$SECURITY``
- ``$RELEASE``
**Internal name:** ``cc_apt_configure``
**Module frequency:** per instance
**Supported distros:** ubuntu, debian
**Config keys**::
apt:
preserve_sources_list: <true/false>
disable_suites:
- $RELEASE-updates
- backports
- $RELEASE
- mysuite
primary:
- arches:
- amd64
- i386
- default
uri: "http://us.archive.ubuntu.com/ubuntu"
search:
- "http://cool.but-sometimes-unreachable.com/ubuntu"
- "http://us.archive.ubuntu.com/ubuntu"
search_dns: <true/false>
- arches:
- s390x
- arm64
uri: "http://archive-to-use-for-arm64.example.com/ubuntu"
security:
- arches:
- default
search_dns: true
sources_list: |
deb $MIRROR $RELEASE main restricted
deb-src $MIRROR $RELEASE main restricted
deb $PRIMARY $RELEASE universe restricted
deb $SECURITY $RELEASE-security multiverse
debconf_selections:
set1: the-package the-package/some-flag boolean true
conf: |
APT {
Get {
Assume-Yes "true";
Fix-Broken "true";
}
}
proxy: "http://[[user][:pass]@]host[:port]/"
http_proxy: "http://[[user][:pass]@]host[:port]/"
ftp_proxy: "ftp://[[user][:pass]@]host[:port]/"
https_proxy: "https://[[user][:pass]@]host[:port]/"
sources:
source1:
keyid: "keyid"
keyserver: "keyserverurl"
source: "deb http://<url>/ xenial main"
source2:
source: "ppa:<ppa-name>"
source3:
source: "deb $MIRROR $RELEASE multiverse"
key: |
------BEGIN PGP PUBLIC KEY BLOCK-------
<key data>
------END PGP PUBLIC KEY BLOCK-------
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mirrortypeR' R% R t mydomt domst mirrordnsR& t fqdnt mirror_listR� t mirrorfmtt post( ( sE /usr/lib/python2.7/site-packages/cloudinit/config/cc_apt_configure.pyt search_for_mirror_dns s*
c C s~ | d k r3 | d k r! | } n i | d 6| d 6S| j j � } | rt | j � } | d | d <| d | d <| St | � S( sa sets security mirror to primary if not defined.
returns defaults if no mirrors are definedR R R� R� N( R
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datasourcet get_package_mirror_infoR R ( t pmirrort smirrorR R% t mirror_infot m( ( sE /usr/lib/python2.7/site-packages/cloudinit/config/cc_apt_configure.pyt update_mirror_info5 s
c C sq | j | d � } | d k r" d Sd } xB | D]: } | j d � } | | k rT | Sd | k r/ | } q/ q/ W| S( sx out of a list of potential mirror configurations select
and return the one matching the architecture (or default)R� R� N( R R
( R' R� R t mirror_cfg_listR� t mirror_cfg_elemR� ( ( sE /usr/lib/python2.7/site-packages/cloudinit/config/cc_apt_configure.pyt get_arch_mirrorconfigN s
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returns None is neither of them found anything otherwise the first
hit is returnedR� RE R� N( R
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R R� R ( R' R� R R% t mcfgR ( ( sE /usr/lib/python2.7/site-packages/cloudinit/config/cc_apt_configure.pyt
get_mirrora s c C s� | d k r+ t j � } t j d | � n t | d | | � } t j d | � t | d | | � } t j d | � t | | | | � } | d | d <| S( s" find_apt_mirror_info
find an apt_mirror given the cfg provided.
It can check for separate config of primary and security mirrors
If only primary is given security is assumed to be equal to primary
If the generic apt_mirror is given that is defining for both
s! got arch for mirror selection: %sR� s got primary mirror: %sR� s got security mirror: %sR R2 N( R
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Applies any apt*proxy config from if specified
R� s Acquire::http::Proxy "%s";R� R� s Acquire::ftp::Proxy "%s";R� s Acquire::https::Proxy "%s";s write apt proxy info to %ss
s# no apt proxy configured, removed %st confs write apt config info to %ss$ no apt config configured, removed %sN( s proxys Acquire::http::Proxy "%s";( s
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