Dockerfile

Use the auto-generated Dockerfile or provide your own, and view, save, or reset it per project.

Every project builds from a Dockerfile. No repo Dockerfile? NevTan generates one for the detected framework — inspect it, edit it, or reset anytime, right from the console.

Auto-generated vs custom

• Auto-generated — written automatically for the detected framework. A good default for most apps.
• Custom — edit it to control the base image, build steps, and runtime exactly. Saved edits apply to every subsequent build.
• Reset — drop your custom Dockerfile to fall back to the generated one.

Where to find it

The Dockerfile lives inside the Configure screen (opened from the project's action bar), below the build/run command and environment variable settings — not as its own separate tab.

View and edit

1. 1
   Open Configure

   From the project page, click Configure. Scroll to the collapsible Dockerfile section — its header shows either "Custom Dockerfile" or "Auto-generated — click Edit to customise".
2. 2
   Click Edit

   The pencil-icon Edit button switches the viewer into a writable code editor.

   

3. 3
   Make your changes, then Save or Cancel

   Save stores your edits with a confirmation toast; Cancel discards them and keeps the previous version.
4. 4
   Redeploy to apply it

   A saved Dockerfile does not restart your running container by itself — the note under the editor says exactly this: changes apply on the next redeploy, not immediately.

Reset to the generated default

Once you've saved a custom Dockerfile, an amber Reset to default button appears next to Edit. Click it to drop your custom file and fall back to the auto-generated one for your detected stack — then redeploy to apply it.