mirror of
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520 lines
21 KiB
XML
520 lines
21 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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<!--
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Copyright 2014 Colin Walters <walters@verbum.org>
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SPDX-License-Identifier: LGPL-2.0+
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library. If not, see <https://www.gnu.org/licenses/>.
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-->
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<refentry id="ostree.repo-config">
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<refentryinfo>
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<title>ostree.repo-config</title>
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<productname>OSTree</productname>
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<authorgroup>
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<author>
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<contrib>Developer</contrib>
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<firstname>Colin</firstname>
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<surname>Walters</surname>
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<email>walters@verbum.org</email>
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</author>
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</authorgroup>
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</refentryinfo>
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<refmeta>
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<refentrytitle>ostree.repo-config</refentrytitle>
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<manvolnum>5</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>ostree.repo-config</refname>
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<refpurpose>OSTree repository configuration</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<para>
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The <filename>config</filename> file in an OSTree
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repository is a "keyfile" in the <ulink
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url="http://standards.freedesktop.org/desktop-entry-spec/latest/">XDG
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Desktop Entry Specification</ulink> format. It has
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several global flags, as well as zero or more remote
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entries which describe how to access remote
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repositories.
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</para>
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<para>
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See <citerefentry><refentrytitle>ostree.repo</refentrytitle><manvolnum>5</manvolnum></citerefentry> for more information
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about OSTree repositories.
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</para>
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</refsect1>
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<refsect1>
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<title>[core] Section Options</title>
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<para>
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Repository-global options. The following entries are defined:
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</para>
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<variablelist>
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<varlistentry>
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<term><varname>mode</varname></term>
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<listitem><para>One of <literal>bare</literal>, <literal>bare-user</literal>, <literal>bare-user-only</literal>, or <literal>archive-z2</literal> (note that <literal>archive</literal> is used everywhere else.)</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>repo_version</varname></term>
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<listitem><para>Currently, this must be set to <literal>1</literal>.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>auto-update-summary</varname></term>
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<listitem><para>Boolean value controlling whether or not to
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automatically update the summary file after any ref is added,
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removed, or updated. Other modifications which may render a
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summary file stale (like static deltas, or collection IDs) do
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not currently trigger an auto-update.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>commit-update-summary</varname></term>
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<listitem><para>This option is deprecated. Use
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<literal>auto-update-summary</literal> instead, for which this
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option is now an alias.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>fsync</varname></term>
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<listitem><para>Boolean value controlling whether or not to
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ensure files are on stable storage when performing operations
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such as commits, pulls, and checkouts. Defaults to
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<literal>true</literal>.</para>
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<para>
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If you disable fsync, OSTree will no longer be robust
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against kernel crashes or power loss.
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</para>
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<para>
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You might choose to disable this for local development
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repositories, under the assumption they can be recreated from
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source. Similarly, you could disable for a mirror where you could
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re-pull.
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</para>
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<para>
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For the system repository, you might choose to disable fsync
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if you have uninterruptable power supplies and a well tested
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kernel.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>per-object-fsync</varname></term>
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<listitem><para>By default, OSTree will batch fsync() after
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writing everything; however, this can cause latency spikes
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for other processes which are also invoking fsync().
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Turn on this boolean to reduce potential latency spikes,
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at the cost of slowing down OSTree updates. You most
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likely want this on by default for "background" OS updates.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>min-free-space-percent</varname></term>
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<listitem>
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<para>
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Integer percentage value (0-99) that specifies a minimum percentage
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of total space (in blocks) in the underlying filesystem to keep
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free. The default value is 3, which is enforced when neither this
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option nor <varname>min-free-space-size</varname> are set.
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</para>
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<para>
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If <varname>min-free-space-size</varname> is set to a non-zero
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value, <varname>min-free-space-percent</varname> is ignored. Note
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that, <varname>min-free-space-percent</varname> is not enforced on
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metadata objects. It is assumed that metadata objects are relatively
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small in size compared to content objects and thus kept outside the
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scope of this option.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>min-free-space-size</varname></term>
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<listitem>
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<para>
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Value (in power-of-2 MB, GB or TB) that specifies a minimum space
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in the underlying filesystem to keep free. Examples of acceptable
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values: <literal>500MB</literal> (524 288 000 bytes),
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<literal>1GB</literal> (1 073 741 824 bytes),
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<literal>1TB</literal> (1 099 511 627 776 bytes).
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</para>
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<para>
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If this option is set to a non-zero value, and
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<varname>min-free-space-percent</varname> is also set, this option
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takes priority. Note that, <varname>min-free-space-size</varname> is
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not enforced on metadata objects. It is assumed that metadata objects
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are relatively small in size compared to content objects and thus kept
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outside the scope of this option.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>add-remotes-config-dir</varname></term>
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<listitem>
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<para>
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Boolean value controlling whether new remotes will be added
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in the remotes configuration directory. Defaults to
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<literal>true</literal> for system ostree repositories. When
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this is <literal>false</literal>, remotes will be added in
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the repository's <filename>config</filename> file.
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</para>
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<para>
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This only applies to repositories that use a remotes
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configuration directory such as system ostree repositories,
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which use <filename>/etc/ostree/remotes.d</filename>.
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Non-system repositories do not use a remotes configuration
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directory unless one is specified when the repository is
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opened.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>payload-link-threshold</varname></term>
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<listitem><para>An integer value that specifies a minimum file size for creating
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a payload link. By default it is disabled.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>collection-id</varname></term>
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<listitem><para>A reverse DNS domain name under your control, which enables peer
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to peer distribution of refs in this repository. See the
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<literal>--collection-id</literal> section in
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<citerefentry><refentrytitle>ostree-init</refentrytitle><manvolnum>1</manvolnum></citerefentry>
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>locking</varname></term>
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<listitem><para>Boolean value controlling whether or not OSTree does
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repository locking internally. This uses file locks and is
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hence for multiple process exclusion (e.g. Flatpak and OSTree
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writing to the same repository separately). This is enabled by
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default since 2018.5.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>lock-timeout-secs</varname></term>
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<listitem><para>Integer value controlling the number of seconds to
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block while attempting to acquire a lock (see above). A value
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of -1 means block indefinitely. The default value is 300. This timeout
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is now regarded as a mistake; because it's likely to cause flakes.
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It's recommended to set it to -1, and have timeouts at a higher application
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level if desired.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>default-repo-finders</varname></term>
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<listitem><para>Semicolon separated default list of finders (sources
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for refs) to use when pulling. This can be used to disable
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pulling from mounted filesystems, peers on the local network,
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or the Internet. However note that it only applies when a set
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of finders isn't explicitly specified, either by a consumer of
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libostree API or on the command line. Possible values:
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<literal>config</literal>, <literal>lan</literal>, and
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<literal>mount</literal> (or any combination thereof). If unset, this
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defaults to <literal>config;mount;</literal> (since the LAN finder is
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costly).
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>no-deltas-in-summary</varname></term>
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<listitem><para>Boolean value controlling whether OSTree should skip
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putting an index of available deltas in the summary file. Defaults to false.
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</para>
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<para>
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Since 2020.7 OSTree can use delta indexes outside the summary file,
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making the summary file smaller (especially for larger repositories). However
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by default we still create the index in the summary file to make older clients
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work. If you know all clients will be 2020.7 later you can enable this to
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save network bandwidth.
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</para></listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>[remote "name"] Section Options</title>
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<para>
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Describes a remote repository location.
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</para>
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<variablelist>
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<varlistentry>
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<term><varname>url</varname></term>
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<listitem><para>Must be present; declares URL for accessing metadata and
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content for remote. See also <literal>contenturl</literal>. The
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supported schemes are documented below.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>contenturl</varname></term>
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<listitem><para>Declares URL for accessing content (filez, static delta
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parts). When specified, <literal>url</literal> is used just for
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metadata: summary, static delta "superblocks".</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>branches</varname></term>
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<listitem><para>A list of strings. Represents the default configured
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branches to fetch from the remote when no specific branches are
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requested during a pull operation.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>proxy</varname></term>
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<listitem><para>A string value, if given should be a URL for a
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HTTP proxy to use for access to this repository.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>gpg-verify</varname></term>
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<listitem><para>A boolean value, defaults to true.
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Controls whether or not OSTree will require commits to be
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signed by a known GPG key. For more information, see the
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<citerefentry><refentrytitle>ostree</refentrytitle><manvolnum>1</manvolnum></citerefentry>
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manual under GPG.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>gpg-verify-summary</varname></term>
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<listitem><para>A boolean value, defaults to false.
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Controls whether or not OSTree will check if the summary
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is signed by a known GPG key.
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For more information, see the <citerefentry><refentrytitle>ostree</refentrytitle><manvolnum>1</manvolnum></citerefentry>
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manual under GPG.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>tls-permissive</varname></term>
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<listitem><para>A boolean value, defaults to false. By
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default, server TLS certificates will be checked against the
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system certificate store. If this variable is set, any
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certificate will be accepted.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>tls-client-cert-path</varname></term>
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<listitem><para>Path to file for client-side certificate, to present when making requests to this repository.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>tls-client-key-path</varname></term>
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<listitem><para>Path to file containing client-side certificate key, to present when making requests to this repository.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>tls-ca-path</varname></term>
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<listitem><para>Path to file containing trusted anchors instead of the system CA database.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>http2</varname></term>
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<listitem><para>A boolean value, defaults to true. By
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default, libostree will use HTTP2; setting this to <literal>false</literal>
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will disable it. May be useful to work around broken servers.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>unconfigured-state</varname></term>
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<listitem><para>If set, pulls from this remote will fail with the configured text. This is intended for OS vendors which have a subscription process to access content.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>custom-backend</varname></term>
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<listitem><para>If set, pulls from this remote via libostree will fail with an error that mentions the value.
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It is recommended to make this a software identifier token (e.g. "examplecorp-fetcher"), not freeform text ("ExampleCorp Fetcher").
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This is intended to be used by higher level software that wants to fetch ostree commits via some other mechanism, while still reusing the core libostree infrastructure around e.g. signatures.
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</para></listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>[sysroot] Section Options</title>
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<para>
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Options for the sysroot, which contains the OSTree repository,
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deployments, and stateroots. The following entries are defined:
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</para>
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||
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||
<variablelist>
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||
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<varlistentry>
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<term><varname>readonly</varname></term>
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<listitem><para>A boolean value. If this is set to <literal>true</literal>, then the
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||
<literal>/sysroot</literal> mount point is mounted read-only. This is configured a
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||
legacy repository configuration and the equivalent option in <literal>ostree/prepare-root.conf</literal>
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should be used instead - see <citerefentry><refentrytitle>ostree-prepare-root</refentrytitle><manvolnum>1</manvolnum></citerefentry>.
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</para></listitem>
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</varlistentry>
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||
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||
<varlistentry>
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<term><varname>bootloader</varname></term>
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<listitem><para>Configure the bootloader that OSTree uses when
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||
deploying the sysroot. This may take the values
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||
<literal>bootloader=none</literal>, <literal>bootloader=auto</literal>,
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<literal>bootloader=grub2</literal>, <literal>bootloader=syslinux</literal>,
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||
<literal>bootloader=uboot</literal> or <literal>bootloader=zipl</literal>.
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Default is <literal>auto</literal>.
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||
</para>
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||
<para>
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||
If <literal>none</literal>, then OSTree will generate only BLS (Boot
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||
Loader Specification) fragments in <literal>sysroot/boot/loader/entries/</literal>
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||
for the deployment.
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||
</para>
|
||
<para>
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||
If <literal>auto</literal>, then in addition to generating BLS
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||
fragments, OSTree will dynamically check for the existence of grub2,
|
||
uboot, and syslinux bootloaders. If one of the bootloaders is found,
|
||
then OSTree will generate a config for the bootloader found. For
|
||
example, <literal>grub2-mkconfig</literal> is run for the grub2 case.
|
||
</para>
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||
<para>
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||
A specific bootloader type may also be explicitly requested by choosing
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||
<literal>grub2</literal>, <literal>syslinux</literal>, <literal>uboot</literal> or
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<literal>zipl</literal>.
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||
</para>
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||
</listitem>
|
||
</varlistentry>
|
||
|
||
<varlistentry>
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||
<term><varname>bls-append-except-default</varname></term>
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<listitem><para>A semicolon separated string list of key-value pairs. For example:
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<literal>bls-append-except-default=key1=value1;key2=value2</literal>. These key-value
|
||
pairs will be injected into the generated BLS fragments of the non-default deployments.
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||
In other words, the BLS fragment of the default deployment will be unaffected by
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||
<literal>bls-append-except-default</literal>.
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||
</para>
|
||
</listitem>
|
||
</varlistentry>
|
||
|
||
<varlistentry>
|
||
<term><varname>bootprefix</varname></term>
|
||
<listitem><para>A boolean value; defaults to false. If set to true, the bootloader entries
|
||
generated will include <literal>/boot</literal> as a prefix. This will likely be turned
|
||
on by default in the future.
|
||
</para>
|
||
</listitem>
|
||
</varlistentry>
|
||
|
||
</variablelist>
|
||
</refsect1>
|
||
|
||
<refsect1>
|
||
<title>[ex-integrity] Section Options</title>
|
||
|
||
<para>
|
||
The "ex-" prefix here signifies experimental options. The <literal>ex-integrity</literal> section
|
||
contains options related to system integrity. Information about experimental
|
||
options is canonically found in upstream tracking issues.
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||
</para>
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||
</refsect1>
|
||
|
||
<refsect1>
|
||
<title>/etc/ostree/remotes.d</title>
|
||
|
||
<para>
|
||
In addition to the <filename>/ostree/repo/config</filename>
|
||
file, remotes may also be specified in
|
||
<filename>/etc/ostree/remotes.d</filename>. The remote
|
||
configuration file must end in <literal>.conf</literal>; files
|
||
whose name does not end in <literal>.conf</literal> will be
|
||
ignored.
|
||
</para>
|
||
</refsect1>
|
||
|
||
<refsect1>
|
||
<title>Repository url/contenturl</title>
|
||
<para>
|
||
Originally, OSTree had just a <literal>url</literal> option
|
||
for remotes. Since then, the <literal>contenturl</literal>
|
||
option was introduced. Both of these support
|
||
<literal>file</literal>, <literal>http</literal>, and
|
||
<literal>https</literal> schemes.
|
||
</para>
|
||
<para>
|
||
Additionally, both of these can be prefixed with the string
|
||
<literal>mirrorlist=</literal>, which instructs the client
|
||
that the target url is a "mirrorlist" format, which is
|
||
a plain text file of newline-separated URLs. Earlier
|
||
URLs will be given precedence.
|
||
</para>
|
||
<para>
|
||
Note that currently, the <literal>tls-ca-path</literal> and
|
||
<literal>tls-client-cert-path</literal> options apply to every HTTP
|
||
request, even when <literal>contenturl</literal> and/or
|
||
<literal>mirrorlist</literal> are in use. This may change in the future to
|
||
only apply to metadata (i.e. <literal>url</literal>, not
|
||
<literal>contenturl</literal>) fetches.
|
||
</para>
|
||
</refsect1>
|
||
|
||
<refsect1>
|
||
<title>Per-remote GPG keyrings and verification</title>
|
||
<para>
|
||
OSTree supports a per-remote GPG keyring, as well as a
|
||
<literal>gpgkeypath</literal> option. For more information see
|
||
<citerefentry><refentrytitle>ostree</refentrytitle><manvolnum>1</manvolnum></citerefentry>.
|
||
in the section <literal>GPG verification</literal>.
|
||
</para>
|
||
</refsect1>
|
||
|
||
<refsect1>
|
||
<title>Per-remote HTTP cookies</title>
|
||
<para>
|
||
Some content providers may want to control access to remote
|
||
repositories via HTTP cookies. The <command>ostree remote
|
||
add-cookie</command> and <command>ostree remote
|
||
delete-cookie</command> commands will update a per-remote
|
||
lookaside cookie jar, named
|
||
<filename>$remotename.cookies.txt</filename>.
|
||
</para>
|
||
</refsect1>
|
||
|
||
<refsect1>
|
||
<title>See Also</title>
|
||
<para>
|
||
<citerefentry><refentrytitle>ostree</refentrytitle><manvolnum>1</manvolnum></citerefentry>, <citerefentry><refentrytitle>ostree.repo</refentrytitle><manvolnum>5</manvolnum></citerefentry>
|
||
</para>
|
||
</refsect1>
|
||
</refentry>
|