File: //usr/lib/netdata/conf.d/health.d/portcheck.conf
# This is a fast-reacting no-notification alarm ideal for custom dashboards or badges
template: portcheck_service_reachable
on: portcheck.status
class: Workload
type: Other
component: TCP endpoint
lookup: average -1m unaligned percentage of success
calc: ($this < 75) ? (0) : ($this)
every: 5s
units: up/down
summary: Portcheck status for ${label:host}:${label:port}
info: TCP host ${label:host} port ${label:port} liveness status
to: silent
template: portcheck_connection_timeouts
on: portcheck.status
class: Errors
type: Other
component: TCP endpoint
lookup: average -5m unaligned percentage of timeout
every: 10s
units: %
warn: $this >= 10 AND $this < 40
crit: $this >= 40
delay: down 5m multiplier 1.5 max 1h
summary: Portcheck timeouts for ${label:host}:${label:port}
info: Percentage of timed-out TCP connections to host ${label:host} port ${label:port} in the last 5 minutes
to: sysadmin
template: portcheck_connection_fails
on: portcheck.status
class: Errors
type: Other
component: TCP endpoint
lookup: average -5m unaligned percentage of no_connection,failed
every: 10s
units: %
warn: $this >= 10 AND $this < 40
crit: $this >= 40
delay: down 5m multiplier 1.5 max 1h
summary: Portcheck fails for ${label:host}:${label:port}
info: Percentage of failed TCP connections to host ${label:host} port ${label:port} in the last 5 minutes
to: sysadmin