homelab-docs/manifest.md

🛡️ My Cloud Hub: Architecture & Operations

🌐 Global Architecture

• Compute: Linode 2GB Shared Instance (Chicago/us-ord)
• OS: Ubuntu 22.04 LTS
• Ingress: Cloudflare Zero Trust (Tunnels) with MFA/WARP
• Backups: Nightly (2:00 AM) to Linode Object Storage (S3) via rclone

🖥️ System Specs & Tuning

• RAM: 2GB (Shared)
• Swap: 1.5GB Total
  • Partition: /dev/sdb (512MB default)
  • File: /swapfile (1GB manual)
• Swappiness: Default (60)

🏗️ Docker Network Topology

Network	Driver	Purpose
web_gateway	bridge (ext)	External traffic from Cloudflare to containers
db_network	bridge (ext)	Private traffic between Apps and Postgres

📦 Service Inventory

Service	URL	Directory	Database
Dashboard	home.davisdre.com	/opt/docker/dashboard	Static (Nginx)
Gitea	git.davisdre.com	/opt/docker/gitea	gitea (Postgres)
Linkwarden	links.davisdre.com	/opt/docker/linkwarden	linkwarden (Postgres)
FreshRSS	news.davisdre.com	/opt/docker/freshrss	freshrss (Postgres)
Memos	memos.davisdre.com	/opt/docker/memos	memos (Postgres)
Surmai	travel.davisdre.com	/opt/docker/surmai	Internal SQLite
Postgres	Internal Only	/opt/docker/global-db	Universal DB

---

🛠️ Standard Operating Procedures (SOPs)

1. Updating the Dashboard

1. Modify index.html on local PC.
2. git add . && git commit -m "update" && git push
3. On Linode, run: updatedash (alias for /opt/docker/dashboard/update-dash.sh)

2. Adding a New App (Postgres-backed)

Run these commands to provision the DB before deploying the container:

# 1. Update global-db/compose.yaml environment list first
# 2. Manually provision the DB (Live Instance)
docker exec -it global_postgres psql -U postgres -c "CREATE DATABASE app_name;"
docker exec -it global_postgres psql -U postgres -c "CREATE USER app_name WITH PASSWORD 'my-custom-password';"
docker exec -it global_postgres psql -U postgres -c "GRANT ALL PRIVILEGES ON DATABASE app_name TO app_name;"
docker exec -it global_postgres psql -U postgres -c "ALTER DATABASE app_name OWNER TO app_name;"