<p></p>
<p><b>@migurski</b> commented on this pull request.</p>

<hr>

<p>In <a href="https://github.com/openstreetmap/openstreetmap-website/pull/2409#discussion_r549456789">docker-compose.yml</a>:</p>
<pre style='color:#555'>> @@ -0,0 +1,30 @@
+version: "3"
+
+services:
+  web:
+    build:
+      context: .
+    volumes:
+      - .:/app
+      # don't mount tmp directory (https://github.com/Shopify/bootsnap/issues/177)
+      - /app/tmp
+    ports:
+      - "3000:3000"
+    environment:
+      # https://github.com/Shopify/bootsnap/issues/262
+      ENABLE_BOOTSNAP: 'false'
</pre>
<p>This is me chasing down some Ruby 2.5/2.7 vs. Ubuntu 18/20 weirdness when migrating away from the <code>ruby:2.7</code> base image per <a class="user-mention" data-hovercard-type="user" data-hovercard-url="/users/gravitystorm/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/gravitystorm">@gravitystorm</a>’s recommendation above. I might be able to back this out if the latest Ubuntu 20.04 + Ruby 2.7 commit builds cleanly.</p>

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