Add command in Makefile to get a completly static binary

[titilambert]

No description provided.

[sparrc]

Did you mean CGO_ENABLED=0?

Could you also explain why this is necessary? I believe some of the linux system plugins rely on CGO and some of them may not function with this flag.

[titilambert]

@sparrc Thanks ! Yeah it's CGO_ENABLED=0 :)
My use case: I need to use telegraf in a container to query an other container (these two containers are in the same K8S pod). So I want the telegraf container really small, with this option I can get a 25Mo container :)

[sparrc]

@titilambert and these are linux containers that don't have access to libc? I'm curious why exactly they can't use binaries that use CGO

[titilambert]

Hum... Maybe I missed something with docker ??? @sparrc
If build telegraf without CGO_ENABLED=0, I get an error:

1 . Here my docker file:

  FROM scratch
  COPY ./telegraf /

2 . I build it

  docker build -t telegraf .

3 . I run it

docker run telegraf /telegraf
WARNING: Your kernel does not support memory swappiness capabilities, memory swappiness discarded.
no such file or directory
Error response from daemon: Cannot start container 1c94b30e035b517381637732067c05c0f472ed26490db5a4a4f714f6530590f4: [8] System error: no such file or directory

Did I miss something ?

I don't have this error with CGO_ENABLED=0

[sparrc]

@titilambert do you still need this PR merged?

[titilambert]

@sparrc yes ! I use telegraf in a "FROM strach" container. But are you agree with this "feature" ?

[sparrc]

yes, sorry it took me so long to get to this

[titilambert]

@sparrc Thanks for merge this one !
Will you release this static binary of telegraf for each version ?
BTW how can I get something like this https://pbs.twimg.com/media/CXlgQZ7UoAE3AMZ.jpg ?

Thanks !