(fix) Make Caddyfile use /uploads/ as default root but variable UPLOAD_DIRECTORY when set

[BrutalBirdie]

What kind of change does this PR introduce?

It improves the handling of the Caddyfile to catch user errors when setting the UPLOAD_DIRECTORY to a local path.
Without this change, users will have to change the Caddyfile manually.
This way, nothing needs to be done, except set the UPLOAD_DIRECTORY variable when Caddy gets started.

Why was this change needed?

Because there is/was no documentation for this "issue" and why document more when you can improve and make it prevent user erros.

Other information:

None

Checklist:

Put a "X" in the boxes below to indicate you have followed the checklist;

• I have read the CONTRIBUTING guide.
• I checked that there were not similar issues or PRs already open for this.
• This PR fixes just ONE issue (do not include multiple issues or types of change in the same PR) For example, don't try and fix a UI issue and include new dependencies in the same PR.

Summary by CodeRabbit

• Chores
  • Updated file serving configuration to support a configurable uploads directory via environment variable, with a default fallback.

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[coderabbitai]

Walkthrough

The Caddyfile configuration for the /uploads/* path has been updated to set its root directory using an environment variable, UPLOAD_DIRECTORY, with a default fallback to /uploads/. This change enables dynamic configuration of the uploads directory location at runtime without altering the file, enhancing flexibility in deployment environments. No other logic or control flow was modified.

Changes

File(s)	Change Summary
var/docker/Caddyfile	Updated the /uploads/* root directive to use {$UPLOAD_DIRECTORY:/uploads/} for configurability.

Possibly related issues

• DOC: UPLOAD_DIRECTORY + Caddyfile nowhere mentioned #712: The change implements the use of the UPLOAD_DIRECTORY environment variable in the Caddyfile, directly addressing the configuration concern raised in this issue.

Poem

In Caddy’s file, a tweak so neat,
The upload path now takes a seat—
Where env vars rule, and configs bend,
Flexibility’s the latest trend!
A rabbit hops with joyful cheer,
For dynamic roots are finally here.
🐇✨

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📥 Commits

Reviewing files that changed from the base of the PR and between ee0fa5b and 1d06aa5.

📒 Files selected for processing (1)

• var/docker/Caddyfile (1 hunks)

🔇 Additional comments (2)

var/docker/Caddyfile (2)

7-7: Validate environment variable fallback syntax
Ensure that the {$UPLOAD_DIRECTORY:/uploads/} placeholder with default value is supported by your Caddy version (v2+) and correctly resolves when UPLOAD_DIRECTORY is unset. Testing both scenarios will confirm the fallback behavior.

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7-7: Appropriate environment-based root directive
Switching to {$UPLOAD_DIRECTORY:/uploads/} neatly fulfills the PR objective: it defaults to /uploads/ while allowing overrides via the UPLOAD_DIRECTORY environment variable.

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