amtool accessible in docker image for alertmanager

[ajuszczak]

What did you do?

I'd like to be able to use amtool within alert manager docker image to be able to verify configuration passed to docker image before I will push it to Nexus.

> docker run -it --entrypoint=amtool prom/alertmanager:latest

What did you expect to see?
Help message returned by amtool script.

What did you see instead? Under which circumstances?

Error, which says that specific command doesn't exist.

docker: Error response from daemon: oci runtime error: container_linux.go:265: starting container process caused "exec: \"amtool\": stat amtool: no such file or directory".

Please note that this is actually done right now in Prometheus image:

> docker run -it --entrypoint=promtool prom/prometheus:latest
usage: promtool <command> [<args>]

Available commands:
  check-config     validate configuration files for correctness
  check-metrics    validate metrics for correctness
  check-rules      validate rule files for correctness
  help             prints this help text
  version          print the version of this binary

Environment

• System information:

Linux 4.9.49-moby x86_64

• Alertmanager version:

alertmanager, version 0.11.0 (branch: HEAD, revision: 30dd042)
build user: root@3e103e3fc918
build date: 20171116-17:43:56
go version: go1.9.2

[Arnold1]

im also interested, is there a way to login to the running alertmanager container?