How to fix Docker exec: Entrypoint: Permission Denied: Unknown

author@junian.dev (Junian Triajianto) — Tue, 09 Jun 2026 13:00:00 +0700

One time, a client asked me to self-host an app called SerpBear, a Search Engine Position Rank Tracking App.

Back then I self-hosted the SerpBear v2.0.7. The app was great but was missing a feature my client needed.

So I cloned the Git repository, analyzed it, and made some changes.

I was ready to deploy the modified version of SerpBear to our Linux server, and my plan was to deploy it using Docker.

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