stefanprodan / openfaas-promq

OpenFaaS function that executes Prometheus queries

openfaas-promq

OpenFaaS function that executes Prometheus queries

Usage

Deploy:

$ faas-cli deploy -f ./promq.yml --gateway=http://<GATEWAY-IP> 

Invoke:

$ echo -n '{"server": "http://prometheus.openfaas:9090", "query": "sum(increase(gateway_function_invocation_total[1h]))  by (function_name)", "start": "5 hours ago", "end": "now", "step": "1h","format": "table"}' | faas-cli invoke promq --gateway=<GATEWAY-IP>

       time| function_name:certinfo| function_name:nodeinfo
 1512293537|               0.000000|            1001.390821
 1512297137|               1.001391|            1001.390821
 1512300737|               0.000000|               0.000000
 1512304337|               0.000000|               9.000000
 1512307937|               2.000000|               0.000000
 1512311537|               3.004172|               3.004172

Parameters:

• server: default http://prometheus.openfaas:9090 (can also be set with PROMETHEUS_URL environment variable)
• query: promQL format
• start: default 1 hour ago
• end: default now
• step: default 15s
• format: table or json

{
  "server": "http://prometheus.openfaas:9090",
  "query": "sum(increase(gateway_function_invocation_total[1h]))  by (function_name)",
  "start": "5 hours ago",
  "end": "1 hour ago",
  "step": "1h",
  "format": "table"
}