192 lines
8.8 KiB
HTML
192 lines
8.8 KiB
HTML
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<a href="http://andrewconlinphotography.co.uk" class="text-decoration-none"> photos↗ </a>
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<h1 style="font-weight: 500;">
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Fixing php errors in a Nextcloud docker-compose configuration
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</h1>
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<p style="font-family:Rubik;font-weight:500;">
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<i class="fas fa-calendar"></i> 01 Mar 2023
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<i class="fas fa-clock"></i> 2 minutes
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<span style="background-color:#ed0;color:black;"> <a class="text-decoration-none" style="color:black" href="/til/"><i class="fas fa-folder"></i> til</a> </span>
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<span style="background-color:#171717;color:white;font-family:Rubik;padding:3px;border-radius:10px;"><a class="text-decoration-none" href="/blog/tag/php">php</a></span>
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,
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<span style="background-color:#171717;color:white;font-family:Rubik;padding:3px;border-radius:10px;"><a class="text-decoration-none" href="/blog/tag/nextcloud">nextcloud</a></span>
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,
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<span style="background-color:#171717;color:white;font-family:Rubik;padding:3px;border-radius:10px;"><a class="text-decoration-none" href="/blog/tag/docker">docker</a></span>
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,
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<span style="background-color:#171717;color:white;font-family:Rubik;padding:3px;border-radius:10px;"><a class="text-decoration-none" href="/blog/tag/docker-compose">docker-compose</a></span>
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</p>
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<hr>
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<p>I was trying to rescan the files in my Nextcloud server (running on Raspberry Pi 4 with DietPi), and kept running into some weird <code class="language-plaintext highlighter-rouge">php</code> errors.</p>
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<h3 id="first-error---could-not-find-driver">First error - “could not find driver”</h3>
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<p>I was trying using the following syntax to call <code class="language-plaintext highlighter-rouge">occ</code> and scan the files:</p>
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<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>sudo -u www-data php /path/to/nextcloud/occ files:scan --all
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</code></pre></div></div>
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<p>but I kept running into a PHP error. Specifically this error:</p>
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<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>Doctrine\DBAL\Exception: Failed to connect to the database: An exception occurred in the driver: could not find driver in /path/to/nextcloud/lib/private/DB/Connection.php:139
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</code></pre></div></div>
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<p>followed by a long, verbose stack trace.</p>
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<p>It took me a decent amount of time to diagnose the exact issue, but eventually I found <a href="https://docs.nextcloud.com/server/20/admin_manual/installation/source_installation.html#prerequisites-for-manual-installation">this list</a> of required PHP modules in the Nextcloud admin manual.</p>
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<p>Running <code class="language-plaintext highlighter-rouge">php -m</code> will print out the list of currently installed PHP modules. I noticed I was missing quite a few of the required modules, but the one that was causing my issue was the missing <code class="language-plaintext highlighter-rouge">pdo_mysql</code> module.
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This can be installed by running:</p>
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<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>sudo apt-get install php7.4-mysql
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</code></pre></div></div>
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<p><strong>Note: This command will change based on your OS, PHP version and database type</strong></p>
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<p>This resolved the error! However (as is always the case), this only meant I got a shiny new error instead:</p>
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<h3 id="second-error---name-or-service-not-known">Second error - “Name or service not known”</h3>
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<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>Doctrine\DBAL\Exception: Failed to connect to the database: An exception occurred in the driver: SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Name or service not known in /path/to/nextcloud/lib/private/DB/Connection.php:139
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</code></pre></div></div>
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<p>From first glance, this looks like something wrong in the DNS name resolution. This sent me a long way down the wrong path, changing a whole bunch of things in my docker-compose.yml file.
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Eventually however, after a long and perilous journey over the high seas of Nextcloud forums and StackOverflow, I found <a href="https://techoverflow.net/2020/07/17/how-to-run-nextcloud-php-occ-in-a-docker-compose-configuration/">this example</a> of running <code class="language-plaintext highlighter-rouge">php occ</code> in a docker-compose configuration.
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This led me to running this command:</p>
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<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>docker-compose exec -u www-data nextcloud-app php occ files:scan --all
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</code></pre></div></div>
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<p><strong>Note: replace nextcloud-app with the name of your Nextcloud container. Also, this command must be run from the directory of your Nextcloud docker-compose.yml</strong></p>
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<p>….aaaaaand, <em>voila!</em> The command runs, the files are scanned and everything is up to date.</p>
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<p><img src="/assets/images/occ.png" alt="terminal output showing the files that have been successfully been scanned" /></p>
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<br>
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