Michael Krause
600c67b3aa
Finalized infrastructure role assignments: - Command Center: Pure Frostwall Gateway - TX1 Dallas: Management Hub (Phase 0.5 target) - NC1 Charlotte: Pure game workload - Ghost VPS: Marketing + flex capacity (keeping) - ATM10 Java heap fix documented Decision made 2026-02-08 after full capacity analysis.
119 lines
3.6 KiB
Markdown
119 lines
3.6 KiB
Markdown
# Architecture Decisions Log
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## Decision Record: Infrastructure Role Assignments
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**Date:** February 8, 2026
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**Status:** APPROVED - Implementation in Progress
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---
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### Context
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Phase 0 Vanilla Reset completed. Need to decide where Phase 0.5 management services deploy:
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- Option 1: Command Center (original plan)
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- Option 2: TX1 Dallas (consolidation on underutilized dedi)
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- Option 3: New VPS (additional cost)
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After full infrastructure audit, we have:
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- 4 VPS (modest specs)
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- 2 Dedicated Servers (32 vCPU, 256GB RAM each - massively underutilized)
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---
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### Decision: TX1 Dallas = Management Hub
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**Command Center (63.143.34.217 + /29):**
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- **Role:** Pure Frostwall Gateway ONLY
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- **Purpose:** Game traffic proxy (Cloudflare → Command Center → GRE → Hidden servers)
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- **No management services** - Optimized for bandwidth/forwarding
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- **Specs:** 2 vCPU, 4GB RAM, 10TB bandwidth @ 1Gbps
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**TX1 Dallas (38.68.14.26):**
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- **Role:** Management Services Hub + Game Servers
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- **Current:** 6 game servers, 1% RAM usage (2.9GB/256GB)
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- **Phase 0.5 Deploys HERE:**
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- Gitea (migrate from Command Center)
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- Uptime Kuma (status.firefrostgaming.com)
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- BookStack (docs.firefrostgaming.com)
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- Netdata (analytics.firefrostgaming.com)
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- Vaultwarden (vault.firefrostgaming.com)
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- **Specs:** 32 vCPU, 256GB RAM, 1TB disk
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- **Impact:** +3GB RAM, +2.5 vCPU (negligible on 256GB system)
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**NC1 Charlotte (216.239.104.130):**
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- **Role:** Pure game server workload
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- **Current:** 9 game servers, 7% RAM usage (18GB/256GB)
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- **No management services** - All resources for games
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**Ghost VPS (64.50.188.14):**
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- **Role:** Marketing + Flex Capacity
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- **Decision:** KEEP (not cancel)
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- **Purpose:** Ghost CMS + future testing/staging/emergency failover
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- **Cost:** $10/month justified for operational flexibility
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---
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### Rationale
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**Why TX1 for Management:**
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- ✅ Already paying $160/month for dedis (zero additional cost)
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- ✅ Massively underutilized (1% RAM, light CPU)
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- ✅ Management services tiny compared to game servers (~3GB vs 256GB available)
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- ✅ Clean separation: Gateway = Command Center, Operations = TX1
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- ✅ Professional architecture without new VPS cost
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**Why Keep Command Center Pure:**
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- Frostwall Gateway is public-facing (different security posture)
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- Mixing management + game proxy creates complex attack surface
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- 2 vCPU sufficient for proxy, not ideal for dual-role
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**Why Keep Ghost VPS:**
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- Marketing site isolation (public-facing)
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- Emergency failover capacity
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- Future expansion flexibility
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- $10/month = cheap insurance
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---
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### Impact Analysis
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**Capacity:**
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- NC1: Can handle 20-25 game instances (currently 9)
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- TX1: Can handle 18-23 game instances after management (currently 6)
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- Total: 38-48 instances possible (currently 15 = 40% utilization)
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**Cost:**
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- Current: $207/month
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- After: $207/month (no change)
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- Savings from optimization: $0 (but better architecture)
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**Performance:**
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- Management services: <5% impact on TX1 capacity
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- Command Center: Freed up for pure Frostwall focus
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- NC1: Unchanged, dedicated to games
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---
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### Related Fixes
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**ATM10 Performance Issue (NC1):**
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- **Problem:** Server ticks falling behind
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- **Root Cause:** `-Xms128M -XX:MaxRAMPercentage=95.0` (dangerous heap)
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- **Fix:** Changed to `-Xms12G -Xmx12G` (fixed heap)
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- **Date:** 2026-02-08 15:52
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- **Result:** Consistent GC, no resizing pauses
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---
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### Next Steps
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1. ✅ ATM10 fix applied (testing in progress)
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2. ⏳ Deploy Uptime Kuma on TX1 (Phase 0.5 Service 2/5)
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3. ⏳ Deploy BookStack on TX1 (Phase 0.5 Service 3/5)
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4. ⏳ Migrate Gitea: Command Center → TX1
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5. ⏳ Deploy Netdata, Vaultwarden on TX1
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6. ⏳ Future: Rebuild Frostwall GRE tunnels (post-Phase 0.5)
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---
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**End of Decision Record**
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