Manage AWS, Hetzner, OVH and SSH servers: status, logs, CloudWatch, IP bans, safe command exec.
dev.servonaut/servonaut MCP Server
The dev.servonaut/servonaut MCP server provides management for AWS, Hetzner, OVH, and custom SSH-accessible servers. It supports server status and logs, CloudWatch integration, IP bans, and “safe command exec.” It is described as part of a single terminal TUI workflow and includes an MCP server.
🛠️ Key Features
Manage AWS, Hetzner, OVH, and custom servers
Server status and logs
CloudWatch
IP bans
Safe command execution via SSH
🚀 Use Cases
Operational monitoring of cloud and SSH servers (status/logs)
Reviewing or acting on server activity through a terminal interface
Managing access via IP bans
Interacting with AWS via CloudWatch
⚡ Developer Benefits
Standardized access through Model Context Protocol (MCP)
Developer-oriented CLI/TUI tooling for server administration
Works with SSH and cloud provider services (AWS/Hetzner/OVH)
⚠️ Limitations
Scope is limited to AWS, Hetzner, OVH, and custom SSH servers as stated in the provided description
Standalone console-only archives are being validated for Windows x64, macOS
Intel and Apple Silicon, and Ubuntu x64. They are not published or downloadable
yet. Until signed release installers are available, install Servonaut with pipx
or pip.
Manual install from source:
bash
git clone https://github.com/zb-ss/servonaut.git
cd servonaut
pipx install .
Set up with an AI agent
Prefer to let an AI agent do the whole thing? Paste this prompt into Claude Code, Cursor, or any coding assistant — it installs Servonaut, generates the config, and walks you through AWS / SSH / bastion / custom-server / AI-provider setup plus the MCP server.
Copy-paste setup prompt
code
Install and configure Servonaut, a TUI for managing servers (AWS EC2, OVHcloud, Hetzner Cloud, and custom SSH servers).
1. Install with all optional features: `pipx install 'servonaut[all]'`
(bundles the MCP server + OVH/Hetzner SDKs + keyring; AI log analysis needs no extra. Use plain `pipx install servonaut` for a minimal install.)
2. Run `servonaut` once to generate ~/.servonaut/config.json
3. (Optional) If I have a Servonaut account, run `servonaut login` to unlock the hosted features: Servonaut AI (chat with my fleet, no local API key), config sync across machines, Memory Sync, and proactive monitoring (Findings). Servonaut works fully offline against my own credentials if I skip this.
4. Read ~/.servonaut/config.json and help me configure:
- AWS regions to scan (default scans all, set `regions` array to limit)
- Default SSH username (`default_username`, default "ec2-user")
- Cache TTL (`cache_ttl_seconds`, default 3600)
- Terminal emulator if not auto-detected (`terminal_emulator`)
5. If I use bastion/jump hosts, help me set up `connection_profiles` and `connection_rules`
6. If I have non-AWS servers, help me add them to `custom_servers`
7. If I use OVHcloud or Hetzner Cloud, help me add the API credentials so those instances merge into the fleet
8. For AI log analysis or chat with my own model (instead of Servonaut AI), help me configure `ai_provider` (openai/anthropic/gemini/ollama)
- Each provider has its own key field (`openai_api_key`, `anthropic_api_key`, `gemini_api_key`, `ollama_api_key`); local Ollama needs none
- Key fields support `$ENV_VAR` and `file:~/.secrets/key` syntax so secrets stay out of the config file
9. Install the MCP server into my coding agent: `servonaut --mcp-install claude` (or `cursor`, `windsurf`, `opencode`, `vscode`, `codex`, `agy`, `gemini`, `all`)
10. (Optional) To let AI agents/teammates reach this machine over the relay — and to run proactive Findings scans — start it with `servonaut connect`
After setup, launch with `servonaut` and walk me through the key features, including the Findings inbox if I enabled the hosted features.
Screenshots
📸 More screenshots — CloudWatch Top IPs, IP banning, AI chat, sidebar, instance list
Instance list — AWS, Hetzner, OVH, and custom servers merged into one view
Sidebar reveals Fleet Memory, Memory Sync, Secrets, Settings, and per-provider management for OVH and Hetzner
Built-in AI assistant with MCP server integration — chat with local providers or hosted Servonaut AI
CloudWatch log browsing with Top IPs analysis, geolocation, and abuse scoring
Ban/unban IPs via WAF, Security Groups, or NACLs with audit trail
All screenshots and the launch video were recorded with --demo active, which replaces real IPs, ARNs, paths, and secrets with safe fake equivalents. See docs/demo-mode.md for what is redacted and how to use it.
Features
Badges: Solo+ = included with paid Solo/Teams plans.
Core & connectivity
Interactive TUI — mouse + keyboard, powered by Textual.
Multi-provider fleet — AWS EC2, OVHcloud (dedicated / VPS / Public Cloud), Hetzner Cloud, and custom servers from any provider (DigitalOcean, on-prem, …) — listed and searchable in one view across all regions.
Per-instance dashboard — click a server for a Server Actions view: a memory snapshot (OS, disk, web stack, databases, runtimes, containers) plus an opt-in live resource monitor (L — CPU / RAM / load / disk / uptime, polled only while open).
SSH & SCP — one-key SSH in a new terminal window (auto-detected emulator); upload/download files and directories.
Run remote commands — overlay panel with real-time streaming output, history, and saved favorites.
Remote file browser — interactive file-tree navigation, inline in the dashboard or full-screen.
Real-time log viewer — stream logs via tail -f with pause, search, and log switching.
Robust SSH — bastion / jump-server (ProxyJump / ProxyCommand), keepalives on by default (tunable), per-host extra_ssh_options for legacy boxes, and key auto-discovery.
Cloud provider management
OVHcloud — OVH → ⚙ Manage: create / start / stop / reboot / delete (Cloud / VPS / dedicated), a region-first create wizard with API-backed pricing, plus DNS, IP blocks & failover IPs, snapshots, block storage, and billing.
Hetzner Cloud — Hetzner → ⚙ Manage: full lifecycle + project SSH-key registry, with an equivalent CLI (servonaut hetzner …). Auto-registers new servers. → docs
Observability & security
Proactive monitoring — Findings(Solo+) — cloud-side detectors surface fleet issues (disk, failed services, slow queries, credential-scanning cross-referenced with fail2ban, container health, TLS expiry, pending updates) as triageable cards, with gated one-click remediation (server-signed preview → human confirm → verb-allowlisted executor; block IP or renew a cert). → guide
CloudWatch Logs browser — log groups with Top-IPs analysis, IP geolocation, and AbuseIPDB lookups.
CloudTrail browser — AWS CloudTrail events with region / time / event / user filters.
IP ban manager — ban IPs via AWS WAF, Security Groups, or NACLs, with an audit trail.
Keyword server scanning — search file contents across instances.
AI
Servonaut AI(Solo+) — hosted AI gateway; chat with your fleet with no local API key. The model can tail logs, run commands (with confirmation), and triage incidents over the relay — credentials and SSH keys never leave the CLI. Quota inline / servonaut ai quota.
Bring your own key — OpenAI / Anthropic / Gemini / Ollama keys configured per-provider in Settings → AI Provider (local Ollama needs none). All coexist with Servonaut AI, switchable per-session.
Built-in AI chat — LLM assistant with tool-calling against your instances (the same MCP tool surface below).
AI log analysis — analyze logs with OpenAI, Anthropic, Gemini, or Ollama, with cost estimation.
Voice — dictate into the chat panel with ctrl+t, have replies read aloud, or go fully hands-free with conversation mode (ctrl+n): the mic stays open between turns and replies are spoken — with optional barge-in (headphones mode) to interrupt a reply by talking over it. Transcription and speech synthesis run entirely on your machine, so audio never leaves the workstation. Opt-in — nothing is downloaded until you enable it in Settings. → docs
Memory & secrets
Server memory — persistent per-server cache of OS / runtime / service / web-stack / log / database / container / git / disk facts; optional background fleet auto-scan. → docs
Memory Sync(Solo+) — end-to-end-encrypted backup of fleet memory to servonaut.dev (X25519 + AES-256-GCM, your passphrase), with drift detection, cross-device history, and optional auto-sync. ☁ Memory Sync in the sidebar.
Database credential vault(Solo+) — scan a server for the DB credentials its apps already use, store the password in your secret vault under a per-site label, and let the db_* tools resolve it by name — no password in config or agent context. → docs
Agents & automation (MCP)
MCP server — ~80 tools for Claude Code, Cursor, Windsurf, etc.: instance ops, AWS / Hetzner / OVH lifecycle, S3, log analysis & IP banning, Docker inspection, system-health probes, SSH-key CRUD, memory queries, and an authenticated REST proxy — behind a three-tier guard (readonly / standard / dangerous) with a JSONL audit trail. → details below
MCP relay — servonaut connect (or TUI autostart) holds a Mercure SSE connection open so agents and team-mates can dispatch tool calls to this machine. Tokens never leave the CLI.
Servonaut Cloud account — optional servonaut login unlocks config sync across machines and the MCP relay.
Config sync — client-side-encrypted snapshots of your config.json synced via servonaut.dev, paired with a passphrase you control.
Convenience
Instance caching — stale-while-revalidate for fast startup.
OVH API credentials — 3-key (application key / secret / consumer key) or OAuth2. Set up via servonaut --setup-ovh or in Settings.
Getting Started
bash
servonaut
That's the whole interface. The TUI is the primary and recommended way to
use Servonaut — every feature (fleet view, SSH, remote commands, logs,
IP banning, AI chat, server memory, provider management) is reachable from
the sidebar, with full mouse and keyboard support.
A few flags you may want on day one:
bash
servonaut --update # Check for updates and upgrade
servonaut --install-desktop # Create desktop shortcut (Linux/macOS)
servonaut --setup-ovh # Guided OVHcloud credential setup
servonaut --debug # Verbose logging to stderr
Headless & automation: every major feature also has a scriptable CLI
(servonaut connect, servonaut memory, servonaut ai,
servonaut hetzner, servonaut secrets) for CI runners, cron jobs, and
boxes without an interactive session — see the
CLI Reference. Wiring up an AI agent instead?
Jump to MCP Server for AI Agents.
Keyboard Shortcuts
Context
Key
Action
Main Menu
U
Update Servonaut (when update available)
Global
Q
Quit
Global
?
Help screen
Global
Escape
Go back / close
Global
Ctrl+P
Command palette — "Go to …" jumps to any sidebar section from the keyboard
Instance List
/
Focus search
Instance List
R
Force-refresh from AWS
Instance List
S
SSH to selected instance
Instance List
B
Browse remote files
Instance List
C
Run command overlay
Instance List
T
SCP transfer
Instance List
Y
Copy IP to clipboard
Server Actions
L
Toggle the live resource monitor
Server Actions
1–8
Run the numbered action (Browse, Command, SSH, …)
Server Actions
Esc
Close inline view, or go back
Global
F2
Toggle AI chat panel
Anywhere
Mouse drag
Select text (auto-copies to clipboard)
Anywhere
Ctrl+C
Copy selected text
Command Overlay
Ctrl+C
Stop running command
Command Overlay
Ctrl+R
Command picker (saved + recent)
Command Overlay
Ctrl+S
Save command to favorites
Command Overlay
Up/Down
Command history
Log Viewer
P
Pause/resume streaming
Log Viewer
C
Clear output
Log Viewer
F
Find/search in output
Log Viewer
L
Switch log file
What You Can Do
The TUI opens to a unified instance list (AWS + OVH + Hetzner + custom servers in one searchable table). The collapsible left sidebar groups everything else by purpose:
🔑 SSH Keys — configure default and per-instance keys
Logs & Security
📊 CloudWatch — browse AWS log groups with Top IPs analysis, action filter (All/Allowed/Blocked), IP geolocation, AbuseIPDB lookup
🔒 IP Ban Manager — ban IPs via WAF, Security Groups, or NACLs
🔍 CloudTrail — audit AWS API activity with filters
Tools
🧠 Fleet Memory — scan / refresh / inspect the AI-queryable fact cache, with an optional scheduled background auto-scan (bulk scans run in the background and survive leaving the panel)
☁ Memory Sync — encrypted backup of fleet memory across devices (Solo+)
🛡 Findings — proactive-monitoring inbox: scan, review, and triage server-detected issues fleet-wide (Solo+; Free shows an upgrade card)
Server Actions — clicking any instance row opens a per-instance dashboard: the detail pane shows the server's identity, a memory snapshot, and an opt-in live resource monitor (L), and the action rail covers:
Browse Files (inline) · Run Command · SSH Connect · SCP Transfer
The SSH Ref editor pairs with a Bitwarden vault — pick an SSH key from a list instead of pasting a UUID, or import keys straight from ~/.ssh (passphrase-protected included), so a machine with no local keys can still connect. The TUI, CLI, and MCP agents all resolve the key from your vault at connect time (Solo+). → docs
Command history persists across sessions — Ctrl+R to search history and saved commands, Ctrl+S to save favorites.
Instance Caching
Scenario
Behavior
First launch (no cache)
Fetches from AWS with progress indicator
Restart within TTL (default 1h)
Instant load from cache
Restart after TTL
Shows stale data immediately, refreshes in background
Press R
Force-refresh from AWS
Configuration
All configuration lives in ~/.servonaut/config.json, created automatically on first run.
See Configuration Guide for the full reference including connection profiles, custom servers, scan rules, and match conditions.
SSH keepalives: all connections send keepalives by default so long or idle agent-driven sessions don't get dropped. Tune globally via the ssh block in config.json (server_alive_interval, server_alive_count_max, tcp_keepalive, connect_timeout).
Legacy / special-case SSH hosts: connection profiles and custom servers both accept an extra_ssh_options array that appends arbitrary -o KEY=VALUE flags per host — use it to talk to ancient OpenSSH boxes (HostKeyAlgorithms=+ssh-rsa), override keepalives, or set connect timeouts without weakening your global SSH defaults. See Per-host SSH tuning.
Secrets: API keys in config.json support $ENV_VAR and file:~/.secrets/key syntax so the config file stays secret-free. You can also create ~/.secrets/servonaut.env with KEY=value pairs — loaded automatically on startup.
Optional Dependencies
bash
# MCP server for AI agents
pipx inject servonaut mcp
# or: pip install 'servonaut[mcp]'# Hetzner Cloud / OVHcloud provider SDKs
pip install 'servonaut[hetzner]'
pip install 'servonaut[ovh]'# Voice — all processed locally, nothing sent to a speech service
pip install 'servonaut[voice]'# voice input, batch engine
pip install 'servonaut[voice-streaming]'# voice input, live text as you speak
pip install 'servonaut[voice-output]'# spoken replies / conversation mode# Install everything
pip install 'servonaut[all]'
Voice also needs the PortAudio system library (sudo apt install libportaudio2, brew install portaudio) and one-time model downloads,
both surfaced in Settings → AI → Voice Input. See
docs/voice.md.
AI log analysis (OpenAI, Anthropic, Gemini, Ollama) needs no extra install —
httpx ships as a base dependency.
MCP Server for AI Agents
This section is for wiring up AI agents (Claude Code, Cursor, Windsurf, …) —
not day-to-day interactive use. If you're a human operating your fleet,
the TUI above is the recommended interface.
Servonaut includes an integrated MCP server that exposes tools to AI agents like Claude Code:
bash
# Auto-install into a coding agent
servonaut --mcp-install claude # Claude Code
servonaut --mcp-install cursor # Cursor
servonaut --mcp-install windsurf # Windsurf
servonaut --mcp-install opencode # OpenCode
servonaut --mcp-install vscode # VS Code Copilot
servonaut --mcp-install codex # Codex CLI
servonaut --mcp-install agy # Antigravity CLI
servonaut --mcp-install gemini # Gemini CLI
servonaut --mcp-install all # All of the above# Run MCP server manually (stdio transport)
servonaut --mcp
Re-running an installer updates only Servonaut's launch command and required
environment forwarding. Other MCP servers and user-owned settings such as
timeouts, trust, tool filters, and custom environment entries are preserved.
Secret values are never copied into agent configuration: supported clients use
references, variable-name allowlists, or inherited environment to supply
SSH/Bitwarden state, AWS credentials, Servonaut endpoints, and $ENV_VAR
references found in the local Servonaut config. Invalid agent JSON is refused
instead of overwritten, and config writes are atomic without replacing
symlinked dotfiles.
SSH-backed MCP tools first use the configured local or vault key. If that key
cannot authenticate and SSH_AUTH_SOCK was forwarded, Servonaut retries once
using the agent without forcing the configured identity. Authentication
failures are returned and audited as failures, never as successful tool calls.
Agent-only / headless install
You don't need the TUI to use Servonaut as an agent toolbox. The MCP server
runs fully headless — servonaut --mcp never loads the terminal UI (this is
enforced by a regression test), so you can install it on a server or CI box
purely as an MCP backend for your coding agent:
bash
pipx install 'servonaut[mcp]'
servonaut --mcp-install claude # or cursor, windsurf, opencode, vscode, codex, agy, gemini, all
Configure credentials and servers the same way as a TUI install (
~/.servonaut/config.json, $ENV_VAR / file: secret syntax — see
Configuration Guide). For Servonaut Cloud features
(relay, config sync, hosted AI), servonaut login runs the device-flow
sign-in fully headless — approve from a browser on any device. Everything an
agent does goes through the same guard levels and is logged to
~/.servonaut/mcp_audit.jsonl.
SSH keys from Bitwarden (no keys on the box). If your instances have a
Bitwarden SSH ref saved, the SSH-backed tools
(run_command, get_logs, transfer_file, …) resolve the private key from
your vault at connect time instead of needing it in ~/.ssh — so an agent on a
fresh server or CI box can connect with no local keys at all. Because a headless
process can't prompt for your master password, unlock the vault once and export
the session into the environment the MCP server (or servonaut connect) runs
in:
bash
export BW_SESSION=$(bw unlock --raw) # unlock once; stays valid until you `bw lock` or the shell exits
servonaut --mcp # child inherits BW_SESSION
The key is written to a private, 0600 temporary file only for the duration of
each command and deleted immediately after. If the vault is locked or bw isn't
installed, the tools fall back to local keys — a working local setup is never
affected.
The tool list is filtered to what's actually usable: OVH and Hetzner tools appear only when those providers are configured, the ip_ban_* tools only when at least one IP-ban target is defined, and the *_server_memory* tools only when the memory subsystem is enabled. CloudWatch/CloudTrail and the core instance tools are always available (AWS is the base provider).
cloudwatch_top_ips parses WAF/ALB structured logs to rank client IPs with allowed/blocked counts — pair it with cloudtrail_lookup_events to corroborate, then ip_ban_set to block via WAF, a security group, or a NACL.
whoami returns session metadata — the OAuth bearer is never exposed.
api_request lets an agent make authenticated REST calls against servonaut.dev with automatic 401 refresh and a CLI-side rate limit (30/min). The bearer stays on the CLI.
mcp_tool_call wraps a JSON-RPC 2.0 tools/call envelope against the hosted MCP at mcp.servonaut.dev — used for premium tools when your plan includes them.
get_server_memory(id) returns the cached fact snapshot — agents call this BEFORE any SSH round-trip so they answer most OS / runtime / service questions without run_command. Pass format='context_block' to get back a <CONTEXT> envelope for direct prompt injection.
Guard levels:readonly (list/status/introspection only — includes CloudWatch/CloudTrail and ip_ban_list_* queries), standard (read + safe commands + authenticated REST + power management — start / stop / reboot / shutdown + S3 download), dangerous (everything, including create_server / delete_server / transfer_file / ip_ban_set / aws_terminate_instance / aws_run_instances / S3 mutations (s3_create_bucket, s3_delete_bucket, s3_upload_object, s3_delete_object, s3_copy_object, s3_move_object, s3_generate_presigned_url)). Dangerous shell commands (rm -rf, shutdown, reboot, etc.) are always blocked regardless of guard level. Mutating tools carry an explicit "confirm with the user before calling" cue in their descriptions; the top-level MCP instructions document the three-step protocol (summarise → state args → wait for affirmative reply). All operations are logged to ~/.servonaut/mcp_audit.jsonl.
Servonaut Cloud account
Optional — Servonaut works fully offline against your own AWS / OVH
credentials. Signing in at servonaut.dev unlocks:
Config sync — push/pull an encrypted snapshot of your
config.json between machines. The passphrase never leaves your
client; the server only sees ciphertext. Sidebar entry 🔄 Sync Config opens the snapshot manager directly (Pull Latest / Push New
/ Restore / Rename / Delete).
MCP relay — a Mercure SSE channel that lets AI agents and
team-mates dispatch MCP tool calls to this machine. While the relay
is connected, https://servonaut.dev/account reports your CLI as
online, and hosted agents can reach it.
Memory Sync (Solo+) — encrypted fleet memory backup with drift
detection. Open the ☁ Memory Sync sidebar entry, click Unlock
Memory Sync, and enter a passphrase. The same screen handles
first-time enrolment AND post-restart unlock — your private key is
wrapped with the passphrase locally, so the server never sees it.
After unlock, click Sync now to push every cached server's memory
modules as encrypted envelopes, or flip on auto-sync to drain the
queue in the background so the server-side copy (and weekly digests)
stay current. Unlock survives restarts: tick Remember on this
device to silently re-unlock from your OS keychain on the next launch
(re-prompted after 30 days, or Forget on this device to clear it). If
you decline, Memory Sync stays dormant until you next open a memory
section. Per-feature settings (digest cadence, Mercure push, AI consent)
live at the bottom of the Settings panel and are stored on your
servonaut.dev account.
Sign in from the TUI's Account / Login screen. After a successful
device-flow authentication, the TUI auto-starts an in-process relay
listener and the sidebar indicator flips to ● connected.
The listener is tied to the TUI window — closing the TUI drops the
connection after ~60 s. For always-on reachability (CI runners,
headless boxes), use servonaut connect --bg instead; the CLI and
TUI cooperate over ~/.servonaut/relay.lock so they can't run at the
same time. The TUI shows external listener (PID N) when a --bg
listener is holding the connection.
bash
servonaut connect # Foreground relay (Ctrl+C to stop)
servonaut connect --bg# Detach; writes ~/.servonaut/relay.pid
servonaut connect --status # Local + backend view with divergence warning
servonaut connect --stop # SIGTERM the background listener
servonaut connect --reconnect # Heal a stale SSE socket (stop+start)
servonaut connect --force-bg # Take over from a TUI's in-process listener
Tokens are stored at ~/.servonaut/auth.json with mode 0600, written
atomically via tmp + os.replace(). If an older build left the file
world-readable, the next run auto-fixes it.
Proactive monitoring — Findings (Solo+)
Server-side detectors scan your fleet for problems and post each one as a
triageable finding card: severity, description, evidence, and
remediation options. Detection runs in the Servonaut cloud; this client
only runs read-only probes over your relay connection and renders the
results — nothing is analysed or decided locally.
Fleet inbox / per-instance — 🛡 Findings in the sidebar for the
whole fleet, F on any server for that instance.
Scan now (s) — dispatches read-only probes over the relay
(servonaut connect or the TUI autostart must be running); inapplicable
detectors report the reason instead of failing silently.
Triage — acknowledge (a), resolve (r), or suppress (x); status
syncs server-side.
Gated one-click remediation — automatable fixes run only on an
explicit click, from a server-signed preview, through a
verb-allowlisted executor (typed confirmation for state changes,
dry-run first, fully audited). Fixes today: block a source IP (AWS
WAF / Security Group / NACL, or the box's own firewall —
nftables / ufw / firewalld) and renew a TLS certificate.
→ Full guide: docs/proactive-monitoring.md —
detectors, the detection/probe/remediation model, and the safety &
privacy design. Included with Solo and Teams (monitored-instance
allowance); Free shows an upgrade card.
Secrets management (Solo+)
Centralise SSH keys + other named secrets behind a pluggable provider
backend. Day-to-day this is invisible: once configured, SSH key
resolution checks your provider automatically on every connect — you
keep clicking SSH in the TUI and it just works. The commands below
are one-time setup. MVP supports two backends:
LocalProvider — keys live in ~/.servonaut/secrets.json
(mode 0600, atomic write, same trust model as auth.json). Always
available on Solo and Teams plans.
BitwardenProvider (bws) — keys live in your team's Bitwarden
Secrets Manager project. Team admin configures the project from
https://servonaut.dev/account/teams/<slug>/secrets; CLI fetches
the metadata and reads/writes through the local bws binary using
your own access token. The token never leaves your machine —
servonaut.dev only stores the project ID and the name of the env
var holding the token.
To use Bitwarden as your team's backend:
bash
# 1. Install the bws CLI (one-time)
servonaut secrets install bws # macOS: brew · Linux: cargo# Windows / other → prints upstream install URL.# 2. Mint a BWS access token (https://bitwarden.com/help/personal-access-tokens/)# and export itexport BWS_ACCESS_TOKEN=<your-token>
# 3. Verify wiring
servonaut secrets status # shows plan, entitlement, active provider# That's it — SSH key resolution now checks Bitwarden first, ~/.ssh as# fallback. Push a key into BWS with `bws secret create`:
bws secret create "$(basename ~/.ssh/prod-server)" \
"$(cat ~/.ssh/prod-server)" \
--project-id <project-uuid-from-status>
Key resolution order on every SSH connect:
Active provider (Bitwarden, if configured) looked up by key name.
The path stored in config.json::instance_keys[<id>] or
config.default_key.
Free-tier users get the legacy ~/.ssh-only flow with zero behaviour
change. Provider-supplied keys land in ~/.servonaut/keys/<name> at
mode 0600.
Threat-model + design notes are pinned in the codebase via inline
docstrings on services/secret_provider.py,
services/bitwarden_provider.py, and
services/secret_provider_resolver.py.
Database credential vault
The same secret store also backs a database credential vault: scan a server
for the DB credentials its apps already use — .env / DATABASE_URL (including
DATABASE_URL_PROD / _STAGING variants), wp-config.php, configuration.php,
Magento env.php, and docker-composeenvironment: blocks, with a read-only
sudo -n fallback so root-owned files and containerized stacks are covered.
Store the password under a per-site label and the db_processlist /
db_top_queries tools resolve it by name — the password never lands in your
config or in an AI agent's context. A Secrets → DB coverage view lists which
instances are covered per site, with in-place label and remove.
Full docs
Development
bash
# Run directly (primary dev workflow)
PYTHONPATH=src python3 -m servonaut.main
# Run with debug logging
PYTHONPATH=src python3 -m servonaut.main --debug
# Install editable
pip install -e .
# Update pipx installation after changes
pipx install . --force
bash
# Run tests
pip install -e ".[test]"
pytest
See Architecture for codebase structure and design patterns.
Troubleshooting
See Troubleshooting Guide for help with SSH connections, bastion hosts, key management, and AWS credentials.
Runtime Files
All runtime files are under ~/.servonaut/:
File
Purpose
config.json
Main configuration
cache.json
Cached instance list (AWS + merged OVH)
auth.json
OAuth tokens for servonaut.dev, mode 0600, atomic writes
Advisory flock shared between the TUI's in-process listener and --bg, carries {pid, mode, acquired_at}
memory/
Server-memory store: <provider>/<instance_id>/<module>.json per probed server, plus index.json
memory/sync_queue.jsonl
Pre-encryption envelopes waiting to be pushed to servonaut.dev. Replayed on next bootstrap; deleted after a successful drain. Only present while Memory Sync has unsent work.
logs/servonaut.log
Application log
logs/relay.log
Relay lifecycle events (one JSON line per event, secrets redacted)
Logging
Logs are always written to ~/.servonaut/logs/servonaut.log. Use --debug for verbose stderr output.
When SSH fails, the terminal window stays open showing the error and exit code.
Listed on
Also published to the official MCP Registry as dev.servonaut/servonaut.
License
This project is licensed under the MIT License — see the LICENSE file for details.