Health checks with SERVICE_CHECK_SCRIPT doesn't work

[kevinimbrechts]

Hi there,

• What version of docker are you running?
  Docker version 18.09.7, build 2d0083d
• What version of registrator are you running?
  v7
• What version of Consul are you running?
  Consul v1.6.1
• Did you build a custom version of registrator? If so, what is that image?
  No
• What is the exact command you are running registrator with?
  -internal=true -deregister=on-success consul-tls://consul:8501
• What is the exact command you are running your container with?

environment:
  - SERVICE_CHECK_SCRIPT=curl --noproxy '*' example.com

• A log capture of all the docker events before, during, and after the issue.

2020/10/02 14:53:41 [ERR] agent: Check "service:xxxxxxxxxxxxxxxxx" failed to invoke: exec: "curl --noproxy '*' example.com": executable file not found in $PATH

Description of the problem:
I want to use health checks with Registrator and Consul, but when I add the env var SERVICE_CHECK_SCRIPT, Consul is unable to register the health check.
I have tried to change the command by this one :

environment:
  - SERVICE_CHECK_SCRIPT=/usr/bin/curl --noproxy '*' example.com

But I have this error message :

fork/exec /usr/bin/curl --noproxy '*' example.com: no such file or directory

/usr/bin/curl exists in the Consul container :

ls -lah /usr/bin
-rwxr-xr-x    1 root     root      214.0K Jun  5  2019 curl

[lettore]

It's really sad that a useful project like this is left in an abandoned state.
I made a Docker image for my personal use that solves this problem and works in swarm with overlay networks.
docker pull lettore/registrator:8.0.1-3.11, where 3.11 is the Alpine version used, it's also multi-arch.
Hopes this can be useful.