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authentik Default Admin
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CLAUDE.md
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# CLAUDE.md — Project Instructions for Claude Code
> This file is read automatically by Claude Code at the start of every session.
> It replaces the "Instructions" panel from the claude.ai Project.
> Keep it updated as the project evolves.
## Project overview
Creating a business (Felhom) for home-server deployment for Hungarian customers. This repository
(`deploy-felhom-compose`) contains the felhom-controller — a Go application that manages Docker
Compose stacks on customer hardware via a Hungarian-language web dashboard.
See `controller/README.md` for full architecture and status.
See `CONTEXT.md` for current project state, recent work, and decisions (update after each session).
## Code quality rules
- Always double-check generated code for bugs, logic issues, syntax errors
- Handle edge cases without overcomplicating the script/program
- Add debug capabilities (logging, verbose output) for easier troubleshooting
- If you need more input or troubleshooting command output, ask first — don't guess
## Repository structure
This repo has two main parts:
```
deploy-felhom-compose/
├── controller/ # Go application (this is the main codebase)
│ ├── cmd/controller/ # Entry point (main.go)
│ ├── internal/
│ │ ├── config/ # YAML config loading
│ │ ├── stacks/ # Docker Compose operations, deploy flow
│ │ ├── api/ # REST API endpoints
│ │ └── web/ # Dashboard UI (embedded HTML/CSS templates)
│ ├── Dockerfile
│ ├── Makefile
│ └── go.mod
├── scripts/ # Setup scripts for customer nodes
├── CLAUDE.md # This file
└── CONTEXT.md # Project memory / state
```
## Related repositories (not in this repo)
- **app-catalog-felhom.eu** — Docker Compose templates + .felhom.yml metadata per app
- **felhom.eu** — Website (htmls) + k3s manifests for the web server
- **homelab-manifests** — Viktor's k3s cluster manifests (dooplex.hu services)
- **misc-scripts** — Helper scripts for daily tasks
All hosted at `gitea.dooplex.hu/admin/`
## Test environments
| Node | Hardware | Domain | IP | Notes |
|------|----------|--------|----|-------|
| demo-felhom | Acemagic N100, 16G RAM, 512G SSD + 1TB HDD | demo-felhom.eu | 192.168.0.162 | Primary test node, Cloudflare Tunnel |
| pi-customer-1 | Raspberry Pi 3B+, 1G RAM, 32G SD | pi-customer-1.local | 192.168.0.161 | Secondary test, not yet active |
- Pi-hole DNS on local network forwards `*.demo-felhom.eu` → 192.168.0.162
- External access via Cloudflare Tunnel → Traefik reverse proxy
## Build workflow
Source is in `controller/` but builds happen in `~/build/felhom-controller/`:
```bash
cd ~/build/felhom-controller
./build.sh <version> --push # builds + pushes to gitea.dooplex.hu registry
```
Deploy on node: `docker compose up -d` (NOT `restart` — restart doesn't pick up new images)
## Tech stack
- **Language:** Go 1.22+
- **Web framework:** stdlib `net/http` + `html/template` (no frameworks)
- **Templates:** Embedded as Go string constants in `templates.go` (Hungarian UI)
- **CSS:** Single embedded const in `templates.go` (no external CSS files)
- **Auth:** bcrypt password hash + session cookies
- **Container orchestration:** Docker Compose via CLI (`docker compose up -d`)
- **Reverse proxy:** Traefik (separate stack, managed by controller)
- **Tunnel:** Cloudflare Tunnel (cloudflared, separate stack)
## Key patterns
- All UI text is in Hungarian (Budapest timezone, Hungarian locale)
- Templates use Go template functions: `stateColor`, `stateLabel`, `stateIcon`, `stateStr`, `isOperational`, `logoURL`, `logoPNGURL`, `appPageURL`
- Container states: `running`, `starting`, `unhealthy`, `stopped`, `exited`, `restarting`, `paused`, `not_deployed`
- Docker `.State` field is combined with `.Status` field to detect health substatus
- Stacks are sorted alphabetically by DisplayName
- Protected stacks (traefik, cloudflared, felhom-controller) can't be stopped from UI
- `app.yaml` persists deploy config; `deployed: true` flag controls UI state
- Password fields require explicit user input or generation (no silent auto-fill)
## Important lessons learned
1. `PAPERLESS_OCR_LANGUAGES` (plural, with S) **installs** tesseract packs; `PAPERLESS_OCR_LANGUAGE` (singular) **selects** which to use
2. `docker compose restart` does NOT pick up new images — always use `docker compose up -d`
3. Go map iteration order is random — always sort before displaying in UI
4. Docker's `.State` field says "running" even for unhealthy containers — must parse `.Status` for health info
5. After `DeployStack()` succeeds, update in-memory `Deployed` flag immediately — `RefreshStatus()` only reads docker ps, not app.yaml
CONTEXT.md
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# CONTEXT.md — Project Memory
> This file serves as persistent project memory across Claude Code sessions.
> It replaces the auto-generated "Memory" from the claude.ai Project.
> **Update this file at the end of each working session** with current state,
> recent decisions, and anything the next session needs to know.
>
> Ask Claude Code: "Please update CONTEXT.md with what we did today"
Last updated: 2026-02-14
---
## About Viktor (project owner)
- Works at Magyar Telekom (Budapest), building Felhom as a side business
- Felhom: managed home-server service for Hungarian households
- Technical but prefers pragmatic solutions over over-engineering
- Runs all infrastructure on Gitea (gitea.dooplex.hu), k3s cluster for management
- Customer deployments use Docker Compose (not Kubernetes) for simplicity
## Current project state
### felhom-controller (this repo)
- **Version:** v0.2.1
- **Phase 1:** ✅ COMPLETE — Stack Manager + Deploy Flow
- **First app deployed:** Paperless-ngx on demo-felhom.eu (2026-02-13)
- **Running on:** demo-felhom (N100 mini PC) at 192.168.0.162:8080
- **All Phase 1 features working:** deploy, start/stop/restart/update, logs, health-aware states, auth
### What was just completed (2026-02-13/14)
- Built the entire felhom-controller from scratch (Go, no frameworks)
- Debugged and fixed 7 issues during first real deployment:
1. Password validation (empty passwords accepted)
2. In-memory Deployed flag not updating after deploy
3. Health-aware state parsing (starting/unhealthy detection)
4. Random card ordering (Go map iteration)
5. "Részletek" button redirect for deployed apps
6. Paperless OCR language installation (LANGUAGES vs LANGUAGE env var)
7. Documentation: restart vs up -d for image updates
- Controller image builds via build.sh, pushes to Gitea container registry
### What's next (priorities)
1. Deploy a second app (e.g., Immich, Jellyfin) to validate the template system
2. Test on Raspberry Pi (pi-customer-1)
3. Phase 2: Monitoring & Healthchecks integration
4. Phase 3: Backup system (DB dumps + restic)
5. Dashboard dark theme (align with felhom.eu website)
## Architecture decisions
| Decision | Rationale |
|----------|-----------|
| Go stdlib for web (no Gin/Echo) | Minimal dependencies, single binary, easy to embed templates |
| Templates as Go string constants | Zero runtime file dependencies, everything in the binary |
| Docker Compose for customers (not k8s) | Simpler troubleshooting, customers don't need k8s knowledge |
| k3s for management infra only | Viktor's own services (gitea, monitoring, website) run on k3s |
| Cloudflare Tunnel for remote access | No port forwarding needed, works behind any NAT |
| app.yaml per stack | Separates deploy config from compose files, survives git pulls |
| Password fields require explicit input | Prevents accidental empty-password deployments |
| Health-aware state from Docker Status field | Docker's State says "running" even for unhealthy containers |
## Key file locations on demo-felhom
```
/opt/docker/felhom-controller/ # Controller compose + config
├── controller.yaml # Customer config (domain, auth, paths)
├── docker-compose.yml # Controller's own compose
└── .env # DOMAIN=demo-felhom.eu
/opt/docker/stacks/ # All app stacks
├── traefik/ # Reverse proxy (protected)
├── cloudflared/ # Tunnel (protected)
├── paperless-ngx/ # First deployed app ✅
│ ├── docker-compose.yml
│ ├── .felhom.yml # App metadata
│ └── app.yaml # Deploy config (env vars, locked fields)
└── whoami/ # Test stack (not deployed)
/mnt/hdd_placeholder/storage/ # HDD storage for apps
└── paperless/
├── consume/ # Drop files here for OCR
├── media/ # Processed documents
└── export/ # Backup exports
```
## Related repositories and their state
| Repository | Status | Notes |
|------------|--------|-------|
| deploy-felhom-compose | Active | This repo. Controller code + deploy scripts |
| app-catalog-felhom.eu | Active | 49 app templates, needs PAPERLESS_OCR_LANGUAGES fix |
| felhom.eu | Stable | Website live, SEO indexed, email working |
| homelab-manifests | Stable | k3s cluster running (dooplex.hu services) |
| misc-scripts | Utility | collect-repo.sh, backup helpers |
## Gotchas & lessons learned
- `docker compose restart` ≠ `docker compose up -d` — restart doesn't pick up new images
- Go maps have random iteration order — always sort slices before displaying
- Docker `.State`="running" doesn't mean healthy — check `.Status` for "(health: starting)" / "(unhealthy)"
- Paperless-ngx needs `PAPERLESS_OCR_LANGUAGES` (plural) to install language packs, `PAPERLESS_OCR_LANGUAGE` (singular) to select
- After deploying a stack, update the in-memory Deployed flag immediately — RefreshStatus() only reads docker ps
- Cloudflare Tunnel handles *.demo-felhom.eu → Traefik handles Host()-based routing to containers
- BIOS "AC Power Recovery" must be enabled on N100 for auto-restart after power outage
controller/README.md
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- Hungarian-language web dashboard for customers - Hungarian-language web dashboard for customers
- Docker Compose stack management (start/stop/update) - Docker Compose stack management (start/stop/update)
- Interactive first-deployment flow with auto-generated secrets - Interactive first-deployment flow with auto-generated secrets
- Health-aware container state monitoring (starting/unhealthy/running)
- Backup orchestration (DB dumps + restic snapshots) — Phase 3 - Backup orchestration (DB dumps + restic snapshots) — Phase 3
- System health monitoring with Healthchecks pings — Phase 2 - System health monitoring with Healthchecks pings — Phase 2
- Git-based stack synchronization with update management — Phase 4 - Git-based stack synchronization with update management — Phase 4
@@ -13,12 +14,33 @@ Replaces Portainer + scattered systemd scripts with a single, lightweight contai
## Current Status ## Current Status
**Phase 1 — Stack Manager + Deploy Flow: core features operational.** **Phase 1 — Stack Manager + Deploy Flow: ✅ COMPLETE**
The controller is built, deployed, and running on the N100 test node (demo-felhom.eu). The controller is built, deployed, and running on the N100 test node (demo-felhom.eu).
The web dashboard is accessible, stack scanning works, and the deploy UI renders correctly. First application (Paperless-ngx) successfully deployed end-to-end through the dashboard on 2026-02-13.
Next milestone: end-to-end test deploying a real app (e.g., Paperless-ngx) through the dashboard. **Milestone achieved:** Full deploy cycle works — customer clicks "Telepítés", fills in fields,
controller generates secrets, saves app.yaml, runs `docker compose up -d`, and the app comes up
with Traefik routing and health checks. The dashboard correctly shows real-time container states
including health substatus (starting → healthy → running).
Current version: **v0.2.1**
### What works
- Dashboard with live container state (green/orange/yellow/red)
- Deploy form with password validation, auto-generation, and field locking
- Stack operations: start, stop, restart, update (pull + recreate)
- Log viewer for each stack
- Deploy page doubles as config viewer (read-only mode for deployed apps)
- Periodic stack rescanning (every 2 minutes)
- Manual rescan endpoint (`POST /api/stacks/rescan`)
- Alphabetically sorted stack display (consistent card ordering)
- Protected stacks (traefik, cloudflared, felhom-controller) can't be stopped
### Known issues / next priorities
- Cloudflare Tunnel + Traefik TLS: paperless.demo-felhom.eu works locally but shows "Not secure" (certificate chain not fully validated through tunnel)
- No undo/delete for deployed apps yet
- Dashboard theme doesn't yet match felhom.eu dark theme
## Architecture ## Architecture
@@ -87,11 +109,11 @@ controller/
|--------|------|--------|----------------| |--------|------|--------|----------------|
| **Config** | `internal/config/` | ✅ Done | Load & validate controller.yaml, env overrides | | **Config** | `internal/config/` | ✅ Done | Load & validate controller.yaml, env overrides |
| **Stacks** | `internal/stacks/` | ✅ Done | Compose operations, scanning, metadata, deploy flow | | **Stacks** | `internal/stacks/` | ✅ Done | Compose operations, scanning, metadata, deploy flow |
| **API** | `internal/api/` | ✅ Done | REST endpoints (stacks, deploy, system info, health) | | **API** | `internal/api/` | ✅ Done | REST endpoints (stacks, deploy, rescan, system info, health) |
| **Web** | `internal/web/` | ✅ Done | Hungarian dashboard, auth, deploy pages, asset serving | | **Web** | `internal/web/` | ✅ Done | Hungarian dashboard, auth, deploy pages, asset serving |
| **Backup** | `internal/backup/` | 🔲 Phase 3 | DB dumps, restic snapshots, restore | | **Backup** | `internal/backup/` | 📲 Phase 3 | DB dumps, restic snapshots, restore |
| **Monitor** | `internal/monitor/` | 🔲 Phase 2 | Health checks, Healthchecks pings, system metrics | | **Monitor** | `internal/monitor/` | 📲 Phase 2 | Health checks, Healthchecks pings, system metrics |
| **Scheduler** | `internal/scheduler/` | 🔲 Phase 2 | Cron-like job runner for all periodic tasks | | **Scheduler** | `internal/scheduler/` | 📲 Phase 2 | Cron-like job runner for all periodic tasks |
## Stack Management ## Stack Management
@@ -110,11 +132,29 @@ controller/
- **User input**: HDD path, admin password, language, etc. - **User input**: HDD path, admin password, language, etc.
- **"🎲 Generálás"** button next to password fields - **"🎲 Generálás"** button next to password fields
3. Clicks "Telepítés" → controller: 3. Clicks "Telepítés" → controller:
- Generates all secrets - Validates all required fields (password fields must be explicitly filled or generated)
- Validates required fields (checks path exists, etc.) - Generates auto-secrets (DB passwords, hex keys)
- Saves `app.yaml` (env vars + locked fields list) - Saves `app.yaml` (env vars + locked fields list)
- Runs `docker compose up -d` with env vars injected - Runs `docker compose up -d` with env vars injected
- Updates in-memory state immediately (no stale "Telepítés" button)
4. Post-deploy: locked fields (DB_PASSWORD, etc.) become read-only 4. Post-deploy: locked fields (DB_PASSWORD, etc.) become read-only
5. "Részletek" button opens deploy page in read-only mode showing current config
### Container state display
The dashboard shows health-aware container states with distinct colors:
| State | Color | Label | Meaning |
|-------|-------|-------|---------|
| Running + healthy | 🟢 Green | "Fut" | All containers running and healthy |
| Running + health: starting | 🟠 Orange | "Indulás..." | Container up but healthcheck not yet passed |
| Running + unhealthy | 🟡 Yellow | "Nem egészséges" | Container running but healthcheck failing |
| Stopped/exited | 🔴 Red | "Leállítva" | All containers stopped |
| Restarting | 🟡 Yellow | "Újraindítás..." | Container in restart loop |
| Not deployed | ⚪ Gray | "Nincs telepítve" | Compose file exists but not yet deployed |
Action buttons adapt: "operational" states (running/starting/unhealthy/restarting) show restart/stop,
while stopped states show a start button.
### Update strategy (Phase 4) ### Update strategy (Phase 4)
@@ -152,13 +192,14 @@ Each deployed app gets an `app.yaml` in its stack directory:
# /opt/docker/stacks/paperless-ngx/app.yaml # /opt/docker/stacks/paperless-ngx/app.yaml
# Auto-generated by felhom-controller — do not edit locked fields manually # Auto-generated by felhom-controller — do not edit locked fields manually
deployed: true deployed: true
deployed_at: "2026-02-13T14:30:00Z" deployed_at: "2026-02-13T21:10:00Z"
env: env:
DOMAIN: "demo-felhom.eu" DOMAIN: "demo-felhom.eu"
DB_PASSWORD: "a7f2b9c1e4d..." # locked DB_PASSWORD: "a7f2b9c1e4d..." # locked
PAPERLESS_SECRET_KEY: "8b3e..." # locked PAPERLESS_SECRET_KEY: "8b3e..." # locked
PAPERLESS_ADMIN_USER: "admin" # editable PAPERLESS_ADMIN_USER: "admin" # editable
HDD_PATH: "/mnt/hdd_1" # locked PAPERLESS_OCR_LANGUAGE: "hun+eng" # editable
HDD_PATH: "/mnt/hdd_placeholder" # locked
locked_fields: locked_fields:
- DB_PASSWORD - DB_PASSWORD
- PAPERLESS_SECRET_KEY - PAPERLESS_SECRET_KEY
@@ -166,9 +207,6 @@ locked_fields:
- HDD_PATH - HDD_PATH
``` ```
Fields are defined in each stack's `.felhom.yml` metadata file. See
`configs/example-felhom-metadata.yml` for the full format.
### App assets (logos, screenshots) ### App assets (logos, screenshots)
Baked into the container image at build time — no external dependencies at runtime. Baked into the container image at build time — no external dependencies at runtime.
@@ -176,12 +214,6 @@ Synced from the felhom.eu website repo before building.
Served locally at `/static/assets/`. Logos try SVG first, fall back to PNG. Served locally at `/static/assets/`. Logos try SVG first, fall back to PNG.
| Asset | File pattern | Served at |
|-------|-------------|-----------|
| Logo (SVG) | `assets/{slug}-logo.svg` | `/static/assets/{slug}-logo.svg` |
| Logo (PNG fallback) | `assets/{slug}-logo.png` | `/static/assets/{slug}-logo.png` |
| Screenshot | `assets/{slug}-screenshot-{n}.webp` | `/static/assets/{slug}-screenshot-{n}.webp` |
## Build & Deploy ## Build & Deploy
Source: `https://gitea.dooplex.hu/admin/deploy-felhom-compose` → `controller/` subfolder. Source: `https://gitea.dooplex.hu/admin/deploy-felhom-compose` → `controller/` subfolder.
@@ -192,27 +224,20 @@ See `docs/BUILDING.md` for the full guide.
```bash ```bash
# Quick build (current platform only) # Quick build (current platform only)
cd ~/build/felhom-controller cd ~/build/felhom-controller
./build.sh 0.1.0 ./build.sh 0.2.1
# Build + push to Gitea registry # Build + push to Gitea registry
./build.sh 0.1.0 --push ./build.sh 0.2.1 --push
# Build for N100 (amd64) + Pi (arm64) and push
./build.sh 0.1.0 --multiarch
``` ```
### Deploy on customer node ### Deploy on customer node
```bash ```bash
# Create config first # Pull new image
nano /opt/docker/felhom-controller/controller.yaml docker pull gitea.dooplex.hu/admin/felhom-controller:0.2.1
# Create .env for compose labels # IMPORTANT: use 'up -d', NOT 'restart' — restart doesn't pick up new images
echo "DOMAIN=demo-felhom.eu" > /opt/docker/felhom-controller/.env
# Pull and start
cd /opt/docker/felhom-controller cd /opt/docker/felhom-controller
docker compose pull
docker compose up -d docker compose up -d
``` ```
@@ -220,8 +245,22 @@ docker compose up -d
| Node | Hardware | Domain | IP | Status | | Node | Hardware | Domain | IP | Status |
|------|----------|--------|----|--------| |------|----------|--------|----|--------|
| demo-felhom | Acemagic GK3PLUS N100, 16G RAM, 512G SSD + 1TB HDD | demo-felhom.eu | 192.168.0.162 | ✅ Controller running | | demo-felhom | Acemagic GK3PLUS N100, 16G RAM, 512G SSD + 1TB HDD | demo-felhom.eu | 192.168.0.162 | ✅ Controller v0.2.1 + Paperless-ngx running |
| pi-customer-1 | Raspberry Pi 3B+, 1G RAM, 32G SD | pi-customer-1.local | — | 🔲 Not yet tested | | pi-customer-1 | Raspberry Pi 3B+, 1G RAM, 32G SD | pi-customer-1.local | — | 📲 Not yet tested |
### First deployment log (Paperless-ngx on demo-felhom)
- **Date:** 2026-02-13
- **App:** Paperless-ngx (document management)
- **Deploy method:** Dashboard UI → "Telepítés" button
- **Issues encountered & resolved:**
1. Password fields accepted empty values → Added server-side + client-side validation
2. "Telepítés" button appeared for already-deployed apps → Fixed in-memory Deployed flag update
3. Green status shown for `(health: starting)` containers → Added health-aware state parsing
4. Stack cards switched positions on refresh → Added alphabetical sorting in GetStacks()
5. "Részletek" button did nothing for deployed apps → Redirects to deploy page (read-only)
6. OCR crash: `PAPERLESS_OCR_LANGUAGE=hun` not installed → Added `PAPERLESS_OCR_LANGUAGES` (plural) to docker-compose
7. Container restart vs recreate: `docker compose restart` doesn't pick up new images → Documented: always use `docker compose up -d`
## REST API ## REST API
@@ -237,11 +276,12 @@ docker compose up -d
| POST | `/api/stacks/{name}/restart` | Yes | Restart stack | | POST | `/api/stacks/{name}/restart` | Yes | Restart stack |
| POST | `/api/stacks/{name}/update` | Yes | Pull images + recreate | | POST | `/api/stacks/{name}/update` | Yes | Pull images + recreate |
| GET | `/api/stacks/{name}/logs` | Yes | Container logs | | GET | `/api/stacks/{name}/logs` | Yes | Container logs |
| POST | `/api/stacks/rescan` | Yes | Trigger manual stack discovery |
| GET | `/api/system/info` | Yes | Customer/domain info | | GET | `/api/system/info` | Yes | Customer/domain info |
## Status & Roadmap ## Status & Roadmap
### Phase 1 — Stack Manager + Deploy Flow ✅ ### Phase 1 — Stack Manager + Deploy Flow ✅ COMPLETE
- [x] Project skeleton & config format - [x] Project skeleton & config format
- [x] .felhom.yml app metadata format with deploy fields - [x] .felhom.yml app metadata format with deploy fields
- [x] Per-app config persistence (app.yaml) - [x] Per-app config persistence (app.yaml)
@@ -249,23 +289,26 @@ docker compose up -d
- [x] Stack catalog (read compose files + metadata from disk) - [x] Stack catalog (read compose files + metadata from disk)
- [x] Docker Compose operations (up/down/pull/ps/logs) - [x] Docker Compose operations (up/down/pull/ps/logs)
- [x] Deploy flow with interactive field input - [x] Deploy flow with interactive field input
- [x] Password validation (server-side + client-side, no empty passwords)
- [x] Basic web dashboard with start/stop/deploy buttons - [x] Basic web dashboard with start/stop/deploy buttons
- [x] Health-aware container states (starting/unhealthy/running)
- [x] REST API for stack + deploy operations - [x] REST API for stack + deploy operations
- [x] Simple web authentication (bcrypt sessions) - [x] Simple web authentication (bcrypt sessions)
- [x] App assets baked into container (SVG/PNG logos, webp screenshots) - [x] App assets baked into container (SVG/PNG logos, webp screenshots)
- [x] Container image build pipeline (Dockerfile + build.sh) - [x] Container image build pipeline (Dockerfile + build.sh)
- [x] Build + push to Gitea container registry - [x] Build + push to Gitea container registry
- [x] Deploy on N100 test node — dashboard accessible - [x] Deploy on N100 test node — dashboard accessible
- [x] Stack scanning + display working (whoami test stack) - [x] Stack scanning + display working
- [ ] End-to-end test: deploy an app through dashboard (whoami / paperless-ngx) - [x] **First app deployed: Paperless-ngx via dashboard** (2026-02-13)
- [ ] Dashboard UI redesign (align with felhom.eu dark theme) - [x] Periodic stack rescanning (every 2 minutes)
- [x] Alphabetically sorted stack display
- [x] Deploy page doubles as read-only config viewer for deployed apps
### Phase 2 — Monitoring & Health ### Phase 2 — Monitoring & Health
- [ ] System metrics collection (CPU, RAM, disk, temperature) - [ ] System metrics collection (CPU, RAM, disk, temperature)
- [ ] Healthchecks.io ping integration - [ ] Healthchecks.io ping integration
- [ ] Dashboard system health panel - [ ] Dashboard system health panel
- [ ] Customer notifications (email/Telegram) - [ ] Customer notifications (email/Telegram)
- [ ] Periodic stack status refresh (background goroutine)
### Phase 3 — Backups ### Phase 3 — Backups
- [ ] DB dump engine (PostgreSQL, MariaDB/MySQL, SQLite) - [ ] DB dump engine (PostgreSQL, MariaDB/MySQL, SQLite)