feat: Optimize Dockerfile

[transparentChange]

Changes the Dockerfile to use a base image without postgresql. Instead, the external postgres is used when running with docker-compose. This change significantly reduces build size and performance.

docker images local output:

Summary by CodeRabbit

• New Features

  • Added Docker Compose setup including app, database, and SMTP services.
  • Introduced a lightweight application image with built-in health checks and a persistent data volume.
  • Enabled local image builds via Docker Compose instead of pulling a prebuilt image.

• Chores

  • Added an environment variable to control Postgres autostart (disabled by default).
  • Standardized the app startup script to use sh for broader compatibility.

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📥 Commits

Reviewing files that changed from the base of the PR and between 248b7fcc721e68d89d28394b27edb37291ba5344 and dfe02341fc7c5350d8786da149789860ed70b6a3.

📒 Files selected for processing (2)

• docker/app/Dockerfile.lite (1 hunks)
• docker/docker-compose.yml (1 hunks)

Walkthrough

Adds a new lightweight app Dockerfile, introduces/updates docker-compose configurations to build the app locally and define db/smtp services, adds a healthcheck in the Docker image, updates an env file with a new variable, and changes a script shebang from bash to sh.

Changes

Cohort / File(s)	Summary
Docker Compose configs docker-compose.yml, docker/docker-compose.yml	New root docker-compose defines db/app/smtp services; app builds from local Dockerfile. Existing docker/docker-compose.yml switches app from registry image to local build (context ../build/docker, Dockerfile).
App Docker image (lite) docker/app/Dockerfile.lite	New Dockerfile based on eclipse-temurin:21-alpine; installs deps, copies app artifacts, sets entrypoint to /app/cmd.sh, exposes 8080, defines /data volume, sets env vars, and adds HTTP healthcheck.
Environment configuration docker/.env	Adds TOLGEE_POSTGRES_AUTOSTART_ENABLED=false.
Startup script docker/app/cmd.sh	Shebang changed from bash to sh; no logic changes.

Sequence Diagram(s)

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Poem

I thump my paws on docker’s shore,
New compose sails, we build once more.
A healthcheck nibble, ports aligned,
Env seeds planted, neatly defined.
Bash to sh—hop light, hop bright—
Ship the app; all greens tonight! 🐇🛳️

Pre-merge checks and finishing touches

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title Check	✅ Passed	The title "feat: Optimize Dockerfile" is concise and directly related to the changes in this PR, which introduce a lighter Dockerfile and alter the Docker setup to avoid bundling PostgreSQL in order to reduce image size and improve performance, so it accurately summarizes the primary intent.
Docstring Coverage	✅ Passed	No functions found in the changes. Docstring coverage check skipped.

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[transparentChange]

@JanCizmar @Anty0 Requesting your review

[Anty0]

@transparentChange Hi! Thanks for the PR!

We discussed the possibility of a similar change internally. Unfortunately, removing the bundled Postgres instance wouldn't be straightforward, as users already rely on it. Implementing this change would require some manual migration steps for them.

One idea would be to create a separate Docker image without the bundled Postgres, while keeping the existing one with the bundled Postgres. New self-hosters could then use the new image, and we could keep the old one for existing deployments.

[JanCizmar]

@transparentChange However, we can create separate "lite" image without postgres. But I would not change the default tolgee/tolgee.

[github-actions[bot]]

This PR is stale because it has been open for 30 days with no activity.

[transparentChange]

@JanCizmar Thank you for the review. Like you suggested I added the new Dockerfile.lite file and a comment for how it can be hooked up to the docker-compose.

[JanCizmar]

@Anty0 can you look into this when you have some time? It stays in my backlog for a long time already and I don't want to ghost @transparentChange

[github-actions[bot]]

This PR is stale because it has been open for 30 days with no activity.