Update bare metal and docker deployment config

[geniusjoe]

Motivation

The current bare-metal and Docker deployment documentation lacks configuration guidance. Users need practical examples to understand how to properly configure BookKeeper and Broker components.

Modifications

Added configuration sections with practical examples for both bare-metal and Docker deployment docs, covering:

• BookKeeper: storage directories, GC/compaction, disk usage thresholds, JVM tuning (BOOKIE_MEM, BOOKIE_EXTRA_OPTS)
• Broker: managed ledger settings (Ensemble / Write Quorum / Ack Quorum), JVM tuning (PULSAR_MEM, PULSAR_EXTRA_OPTS)
• Docker-specific: how apply-config-from-env.py works, configuration methods (-e env vars, --env-file, volume mounts)

Versioned docs

Updated docs/ (next), version-4.0.x/, and version-4.1.x/.

version-3.0.x/ is not updated because the apply_changes_to_versioned_docs script failed due to content differences in 3.0.x. Since 3.0 LTS is approaching end-of-life per the Release Policy, only 4.0.x and 4.1.x versioned docs are updated.

✅ Contribution Checklist

• I read the contribution guide
• I updated the versioned docs

Preview

docker

bare-metal