https://homelab.nbkelley.com/tags/postgresql/ Recent content in Postgresql on homelab Hugo en Sun, 26 Apr 2026 00:00:00 +0000 https://homelab.nbkelley.com/docs/services/postgresql/ Sun, 26 Apr 2026 00:00:00 +0000 https://homelab.nbkelley.com/docs/services/postgresql/ <h1 id="postgresql">PostgreSQL<a class="anchor" href="#postgresql">#</a></h1> <h2 id="what-was-established">What Was Established<a class="anchor" href="#what-was-established">#</a></h2> <p>PostgreSQL 16 runs as an LXC on Proxmox, serving as the central database for n8n, the monitoring pipeline, and pgvector embeddings for the wiki.</p> <h2 id="deployment">Deployment<a class="anchor" href="#deployment">#</a></h2> <table> <thead> <tr> <th>Detail</th> <th>Value</th> </tr> </thead> <tbody> <tr> <td>LXC host</td> <td>postgresql</td> </tr> <tr> <td>Container ID</td> <td>108</td> </tr> <tr> <td>IP</td> <td>192.168.1.57</td> </tr> <tr> <td>Port</td> <td>5432</td> </tr> <tr> <td>Version</td> <td>16.13 (Debian 16.13-1.pgdg13+1)</td> </tr> <tr> <td>OS</td> <td>Debian 13 (unprivileged LXC)</td> </tr> <tr> <td>Disk</td> <td>4 GB (App-Storage ZFS pool)</td> </tr> <tr> <td>RAM</td> <td>1024 MiB</td> </tr> <tr> <td>CPU</td> <td>1 core</td> </tr> <tr> <td>Installed via</td> <td>tteck Proxmox helper scripts</td> </tr> <tr> <td>Web UI</td> <td>Adminer — not yet installed</td> </tr> <tr> <td>SSH user</td> <td>iluvatar (sudo, PermitRootLogin no)</td> </tr> </tbody> </table> <h2 id="databases-and-users">Databases and Users<a class="anchor" href="#databases-and-users">#</a></h2> <table> <thead> <tr> <th>Database</th> <th>User</th> <th>Purpose</th> </tr> </thead> <tbody> <tr> <td>homelab</td> <td>homelab</td> <td>n8n workflows, monitoring pipeline, pgvector wiki embeddings</td> </tr> </tbody> </table> <h3 id="setup-commands-run-as-postgres-user">Setup commands (run as postgres user)<a class="anchor" href="#setup-commands-run-as-postgres-user">#</a></h3> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-sql" data-lang="sql"><span style="display:flex;"><span><span style="color:#66d9ef">CREATE</span> <span style="color:#66d9ef">DATABASE</span> homelab; </span></span><span style="display:flex;"><span><span style="color:#66d9ef">CREATE</span> <span style="color:#66d9ef">USER</span> homelab <span style="color:#66d9ef">WITH</span> PASSWORD <span style="color:#e6db74">&#39;&lt;password&gt;&#39;</span>; </span></span><span style="display:flex;"><span><span style="color:#66d9ef">GRANT</span> <span style="color:#66d9ef">ALL</span> <span style="color:#66d9ef">PRIVILEGES</span> <span style="color:#66d9ef">ON</span> <span style="color:#66d9ef">DATABASE</span> homelab <span style="color:#66d9ef">TO</span> homelab; </span></span><span style="display:flex;"><span><span style="color:#66d9ef">GRANT</span> <span style="color:#66d9ef">ALL</span> <span style="color:#66d9ef">ON</span> <span style="color:#66d9ef">SCHEMA</span> <span style="color:#66d9ef">public</span> <span style="color:#66d9ef">TO</span> homelab; <span style="color:#75715e">-- required for n8n </span></span></span><span style="display:flex;"><span><span style="color:#75715e"></span><span style="color:#960050;background-color:#1e0010">\</span>q</span></span></code></pre></div><p>The <code>GRANT ALL ON SCHEMA public</code> step is required — without it n8n fails to start with a permissions error even though the database and user exist.</p>