Tink vs CFEngine
CFEngine is configuration management through promises on a policy hub. It also records cf-agent --no-lock. That is not a mechanic. Tink installs in one command, watches the Linux server, explains what is wrong, and helps you fix it.
CFEngine keeps the promise. Tink answers “why is this VPS sick?”
Accidental sysadmins land on CFEngine because every ops diagram starts with a policy hub. Then the volume fills, nginx dies, and the last promise still shows kept — no bundle matched host fill. A filling /var is a Tink warning; it is not a CFEngine job unless you wrote a disk promise and ran it.
Tink is the other job: detect the issue on the machine, say why it happened in plain English, propose the command, and run it only after you approve. Keep using CFEngine if you already operate a desired-state workflow. Use Tink if you run Linux servers and want a mechanic.
| Feature | Tink | CFEngine |
|---|---|---|
| Setup time | 30 seconds (one curl | sh command) | Hours — policy hub, cf-serverd, bootstrapping, and a promise set that still does not watch the box after cf-agent returns 0 |
| What you get | Working monitoring, diagnosis, and approved fixes | Desired state kept once. Disk fill, nginx, Postgres, and certs stay your problem until the next promise run |
| Pricing | Free (Scout) / $9 / $29 per machine per month | CFEngine Community is free. CFEngine Enterprise is paid. You still pay the engineer who owns promises and the box after the run |
| Hidden costs | None — fully managed | A failed promise at 2am, drift after the last keep, and a second tool to tell you the VPS is sick |
| Monitoring approach | Agent on the server — CPU, disk, services, logs, certs, ports | cf-agent return codes and reports. CFEngine does not watch a quiet cert after the promise was kept |
| Configuration | None after install — heuristics and AI | Bundles, classes, promise types, and which host failure actually pages you |
| Plain-English diagnosis | Yes — AI explains root cause, impact, and fix | You read cf-agent output, then SSH in to change the host CFEngine already configured |
| Fix execution | Proposes and executes approved commands with an audit trail | Idempotent keep only — CFEngine cannot free disk, restart nginx, or rotate a cert unless you wrote that promise and ran it |
| Alerting | Built-in across 8 channels | Not a CFEngine job — reports, Enterprise Mission Portal, and a separate monitoring tool have to fire |
| Predictive alerts | Yes — disk fills in ~6 days, memory and CPU trends | Not a CFEngine job — a kept promise does not forecast a quiet volume filling up |
| SSH brute-force detection | Built-in — parses auth.log every scan | Never — CFEngine does not read auth.log, journald, or host firewall state after the run |
| Machine offline detection | Agent presence monitoring with multi-channel alerts | Silence if the box dies after the last keep — unless you built a separate uptime check |
| Public status page | Shareable URL with 90-day history | None — CFEngine has no customer-facing status page |
| Weekly fleet digest | Automated Monday digest + daily brief when issues are open | None — a reports recap is not a plain-English fleet narrative |
| On-call tracking | Built-in /oncall command + incident acknowledgment | Not included — wire failed promises into PagerDuty or another incident tool |
| Conversation interface | Telegram, WhatsApp, web dashboard, CLI | cf-agent and cf-runagent. No mechanic you text when /var filled and the last promise still showed kept |
| Learning curve | None — works after install | Steep — promise theory, bundles, classes, and which host failure is the policy vs the running box |
| Best for | Freelancers, small teams, accidental sysadmins (1-50 Linux servers) | Teams that already keep desired state and need a policy hub, not a sick-VPS mechanic |
When CFEngine is the right choice
Keep using CFEngine when you already want that exact job:
- Desired state — you need promises, classes, and a policy hub, not a mechanic.
- An existing CFEngine workflow — bundles, reports, and the Mission Portal matter more than host nginx, certs, and SSH on a quiet VPS.
- An existing policy hub — agents already check in, reports already ship, and someone owns the promise set.
- Hosts that only page on failed promises — you already run exporters and PromQL, not a sick-box SSH loop.
The real cost of “just keep the promise”
CFEngine is in every config-management diagram. A working ops loop for five Linux boxes is not:
- A kept promise still means you SSH in and change the box by hand when it gets sick later
- Host fill, nginx, certs, and SSH brute-force never appear unless a separate tool scraped those signals and a rule fired
- A filling /var is a Tink disk warning on every scan — CFEngine will stay quiet until the next cf-agent run
- A single VPS with a dead agent still needs a mechanic, not another reports entry
For a 5-server team, Tink Mechanic at $45/month is cheaper than a CFEngine hub plus the engineer who keeps failed-promise notifications alive, and every scan includes a diagnosis a quiet keep will not type.
No policy-hub homework. No silent host. One command install.
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