97 lines
3.8 KiB
XML
97 lines
3.8 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-piwik">
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<title>Piwik</title>
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<para>
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Piwik is a real-time web analytics application.
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This module configures php-fpm as backend for piwik, optionally configuring an nginx vhost as well.
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</para>
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<para>
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An automatic setup is not suported by piwik, so you need to configure piwik itself in the browser-based piwik setup.
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</para>
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<section>
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<title>Database Setup</title>
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<para>
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You also need to configure a MariaDB or MySQL database and -user for piwik yourself,
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and enter those credentials in your browser.
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You can use passwordless database authentication via the UNIX_SOCKET authentication plugin
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with the following SQL commands:
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<programlisting>
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INSTALL PLUGIN unix_socket SONAME 'auth_socket';
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ALTER USER root IDENTIFIED VIA unix_socket;
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CREATE DATABASE piwik;
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CREATE USER 'piwik'@'localhost' IDENTIFIED VIA unix_socket;
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GRANT ALL PRIVILEGES ON piwik.* TO 'piwik'@'localhost';
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</programlisting>
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Then fill in <literal>piwik</literal> as database user and database name, and leave the password field blank.
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This works with MariaDB and MySQL. This authentication works by allowing only the <literal>piwik</literal> unix
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user to authenticate as <literal>piwik</literal> database (without needing a password), but no other users.
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For more information on passwordless login, see
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<link xlink:href="https://mariadb.com/kb/en/mariadb/unix_socket-authentication-plugin/" />.
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</para>
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<para>
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Of course, you can use password based authentication as well, e.g. when the database is not on the same host.
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</para>
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</section>
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<section>
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<title>Backup</title>
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<para>
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You only need to take backups of your MySQL database and the
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<filename>/var/lib/piwik/config/config.ini.php</filename> file.
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Use a user in the <literal>piwik</literal> group or root to access the file.
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For more information, see <link xlink:href="https://piwik.org/faq/how-to-install/faq_138/" />.
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</para>
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</section>
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<section>
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<title>Issues</title>
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<itemizedlist>
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<listitem>
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<para>
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Piwik's file integrity check will warn you.
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This is due to the patches necessary for NixOS, you can safely ignore this.
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</para>
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</listitem>
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<listitem>
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<para>
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Piwik will warn you that the JavaScript tracker is not writable.
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This is because it's located in the read-only nix store.
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You can safely ignore this, unless you need a plugin that needs JavaScript tracker access.
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</para>
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</listitem>
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<listitem>
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<para>
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Sending mail from piwik, e.g. for the password reset function, might not work out of the box:
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There's a problem with using <command>sendmail</command> from <literal>php-fpm</literal> that is
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being investigated at <link xlink:href="https://github.com/NixOS/nixpkgs/issues/26611" />.
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If you have (or don't have) this problem as well, please report it. You can enable SMTP as method
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to send mail in piwik's <quote>General Settings</quote> > <quote>Mail Server Settings</quote> instead.
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</para>
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</listitem>
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</itemizedlist>
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</section>
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<section>
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<title>Using other Web Servers than nginx</title>
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<para>
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You can use other web servers by forwarding calls for <filename>index.php</filename> and
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<filename>piwik.php</filename> to the <literal>/run/phpfpm-piwik.sock</literal> fastcgi unix socket.
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You can use the nginx configuration in the module code as a reference to what else should be configured.
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</para>
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</section>
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</chapter>
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