140 lines
4.4 KiB
XML
140 lines
4.4 KiB
XML
<chapter xmlns="http://docbook.org/ns/docbook"
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xmlns:xlink="http://www.w3.org/1999/xlink"
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xmlns:xi="http://www.w3.org/2001/XInclude"
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version="5.0"
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xml:id="module-services-subversion">
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<title>Subversion</title>
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<para>
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<link xlink:href="https://subversion.apache.org/">Subversion</link>
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is a centralized version-control system. It can use a <link
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xlink:href="http://svnbook.red-bean.com/en/1.7/svn-book.html#svn.serverconfig.choosing">variety
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of protocols</link> for communication between client and server.
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</para>
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<section xml:id="module-services-subversion-apache-httpd">
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<title>Subversion inside Apache HTTP</title>
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<para>
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This section focuses on configuring a web-based server on top of
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the Apache HTTP server, which uses
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<link xlink:href="http://www.webdav.org/">WebDAV</link>/<link
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xlink:href="http://www.webdav.org/deltav/WWW10/deltav-intro.htm">DeltaV</link>
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for communication.
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</para>
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<para>For more information on the general setup, please refer to
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the <link
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xlink:href="http://svnbook.red-bean.com/en/1.7/svn-book.html#svn.serverconfig.httpd">the
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appropriate section of the Subversion book</link>.
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</para>
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<para>To configure, include in
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<literal>/etc/nixos/configuration.nix</literal> code to activate
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Apache HTTP, setting <xref linkend="opt-services.httpd.adminAddr" />
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appropriately:
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</para>
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<para>
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<programlisting>
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services.httpd.enable = true;
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services.httpd.adminAddr = ...;
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networking.firewall.allowedTCPPorts = [ 80 443 ];
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</programlisting>
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</para>
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<para>For a simple Subversion server with basic authentication,
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configure the Subversion module for Apache as follows, setting
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<literal>hostName</literal> and <literal>documentRoot</literal>
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appropriately, and <literal>SVNParentPath</literal> to the parent
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directory of the repositories,
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<literal>AuthzSVNAccessFile</literal> to the location of the
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<code>.authz</code> file describing access permission, and
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<literal>AuthUserFile</literal> to the password file.
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</para>
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<para>
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<programlisting>
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services.httpd.extraModules = [
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# note that order is *super* important here
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{ name = "dav_svn"; path = "${pkgs.apacheHttpdPackages.subversion}/modules/mod_dav_svn.so"; }
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{ name = "authz_svn"; path = "${pkgs.apacheHttpdPackages.subversion}/modules/mod_authz_svn.so"; }
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];
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services.httpd.virtualHosts = {
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"svn" = {
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hostName = HOSTNAME;
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documentRoot = DOCUMENTROOT;
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locations."/svn".extraConfig = ''
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DAV svn
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SVNParentPath REPO_PARENT
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AuthzSVNAccessFile ACCESS_FILE
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AuthName "SVN Repositories"
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AuthType Basic
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AuthUserFile PASSWORD_FILE
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Require valid-user
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'';
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}
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</programlisting>
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</para>
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<para>
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The key <code>"svn"</code> is just a symbolic name identifying the
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virtual host. The <code>"/svn"</code> in
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<code>locations."/svn".extraConfig</code> is the path underneath
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which the repositories will be served.
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</para>
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<para><link
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xlink:href="https://wiki.archlinux.org/index.php/Subversion">This
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page</link> explains how to set up the Subversion configuration
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itself. This boils down to the following:
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</para>
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<para>
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Underneath <literal>REPO_PARENT</literal> repositories can be set up
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as follows:
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</para>
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<para>
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<screen>
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<prompt>$ </prompt> svn create REPO_NAME
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</screen>
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</para>
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<para>Repository files need to be accessible by
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<literal>wwwrun</literal>:
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</para>
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<para>
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<screen>
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<prompt>$ </prompt> chown -R wwwrun:wwwrun REPO_PARENT
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</screen>
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</para>
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<para>
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The password file <literal>PASSWORD_FILE</literal> can be created as follows:
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</para>
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<para>
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<screen>
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<prompt>$ </prompt> htpasswd -cs PASSWORD_FILE USER_NAME
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</screen>
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</para>
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<para>
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Additional users can be set up similarly, omitting the
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<code>c</code> flag:
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</para>
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<para>
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<screen>
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<prompt>$ </prompt> htpasswd -s PASSWORD_FILE USER_NAME
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</screen>
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</para>
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<para>
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The file describing access permissions
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<literal>ACCESS_FILE</literal> will look something like
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the following:
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</para>
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<para>
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<programlisting>
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[/]
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* = r
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[REPO_NAME:/]
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USER_NAME = rw
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</programlisting>
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</para>
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<para>The Subversion repositories will be accessible as <code>http://HOSTNAME/svn/REPO_NAME</code>.</para>
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</section>
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</chapter>
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