An example service that can be used for testing readiness and liveness probe settings on Kubernetes.
It randomly sleeps between MAXTIME and MINTIME and returns basic json healthcheck output.
$ go build
$ export MINTIME=2; export MAXTIME=8
$ ./randomhealth
$ curl 127.0.0.1:9337/health
/health endpoint called
Sleeping 4 seconds...
{"healthMax:":7,"healthMin:":3,"healthy":true,"n":4,"remoteAddr":"127.0.0.1:59057"}%
$ curl 127.0.0.1:9337/health
/health endpoint called
Sleeping 5 seconds...
{"healthMax:":7,"healthMin:":3,"healthy":true,"n":5,"remoteAddr":"127.0.0.1:59064"}%
$ kubectl apply -f examples/deployment.yaml
The time range environment variables can be modified in the controller spec.
env:
- name: MINTIME
value: "2"
- name: MAXTIME
value: "6"
$ docker build -t rfplay/randomhealth .
$ docker run -e MINTIME=3 -e MAXTIME=7 -it rfplay/randomhealth:latest
INFO:main.go:73: MAXTIME: 7 MINTIME: 3