Readable conditions
[STATUS] == 200. [CERTIFICATE_EXPIRATION] > 48h. Not a pile of YAML.
Self-hosted endpoint monitoring
Stay nominal.
In ops, nominal means everything is within expected parameters. Nominal tells you when it isn’t.
Why Nominal
Checks you can read. Data you can query.
Yours to query
Monitors live in the database you choose. GraphQL and Terraform if the admin isn’t the source of truth.
Pages and alerts
Public status pages, badges, incidents. Slack, email, PagerDuty, webhooks.
Checks
Ask if it is still up.
Outbound probes, inbound heartbeats, and the databases they depend on.
HTTP
Hit a URL. Check status, body, or the cert.
GraphQL
POST a query. Same checks as HTTP.
Ping
ICMP, or TCP if ping is blocked.
TCP
Open a host and port.
DNS
Look up a record. Check the answer.
TLS
Handshake a port. Watch the certificate.
Heartbeat
Your jobs ping a URL. Missed pings fail.
UDP
Send a packet. Read a reply if there is one.
WebSocket
Connect, then optionally send a message.
MySQL
Log in and run a query.
Redis
Log in and run a command.
PostgreSQL
Log in and run a query.
Conditions
Write checks as expressions.
Nominal evaluates them on every run. Condition reference.
[STATUS] == 200[RESPONSE_TIME] < 400[CERTIFICATE_EXPIRATION] > 48h[BODY] == pat(*"ok"*)Get started
Run it yourself.
One Compose file. Postgres. Open the admin.
docker pull ghcr.io/returnearly/nominal:latest