feat(docker): expose memory (RAM) limit as an Advanced View field (OS-467)

[elibosley]

Summary

Implements OS-467 — exposes the existing docker --memory capability as a first-class Memory limit field in Advanced View, instead of requiring users to hand-write it in Extra Parameters.

Changes

• include/CreateDocker.php — new contMemory text field in the Advanced View block (after Extra Parameters), with placeholder/pattern/help.
• include/Helpers.php:
  • postToXML() → $xml->Memory = xml_encode(trim($post['contMemory']??'')).
  • xmlToCommand() → $cmdMemory = strlen($xml['Memory']??'') ? '--memory='.escapeshellarg($xml['Memory']) : '' and added $cmdMemory to the docker create sprintf (right after --cpuset-cpus). Verified placeholder/arg parity (41 = 41).
• languages/en_US/helptext.txt — :docker_memory_limit_help:.

Behavior

• Empty field → no --memory flag (unchanged default).
• Accepts a byte count or b/k/m/g suffix (e.g. 512m, 2g); validated client-side via pattern.
• Edit-mode autopopulation works via the existing cont+key convention (Settings['Memory'] → contMemory).
• If --memory is also present in Extra Parameters, Docker honors the later flag; documented in the help text.

Notes

• php -l clean on both PHP files.

Testing to do on hardware

• Set e.g. 512m, create/edit a container, confirm docker inspect shows the memory limit and the value round-trips on re-edit.
• Empty field → container has no memory limit.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: 3dd5775b-84e2-4e41-86a6-f7cd77c187d0

📥 Commits

Reviewing files that changed from the base of the PR and between 644ab82 and 4d18192.

📒 Files selected for processing (3)

• emhttp/languages/en_US/helptext.txt
• emhttp/plugins/dynamix.docker.manager/include/CreateDocker.php
• emhttp/plugins/dynamix.docker.manager/include/Helpers.php

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feature/os-467-docker-memory-limit

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📝 Modified Files:

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emhttp/languages/en_US/helptext.txt
emhttp/plugins/dynamix.docker.manager/include/CreateDocker.php
emhttp/plugins/dynamix.docker.manager/include/Helpers.php

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