minimal docker to run fpc program
lazarus / 38-Networking and Web Programming

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Blestan · 2017-07-25 11:04

hi guys! does anyone have some experience and/or code to build minimal
docker images to run fpc compiled program like go containers?

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Thaddy · 2017-07-25 13:13

I thoroughly do not understand what you mean... almost reported it as
SPAM.

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tr_escape · 2017-07-25 13:16

Hello Blestan do you mean linux container? Like as:

https://distrowatch.com/table.php?distribution=container

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Blestan · 2017-07-25 13:42

@thaddy: ooh please thaddy you know me i will never post a spam in the
forum..  i need something like this
https://blog.codeship.com/building-minimal-docker-containers-for-go-
applications/

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avra · 2017-07-25 13:49

Quote from: Thaddy on July 25, 2017, 03:13:31 pmI thoroughly do not
understand what you mean... almost reported it as SPAM.
He probably means this:
https://www.docker.com/what-docker
https://hub.docker.com/_/golang/

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Blestan · 2017-07-25 13:55

@avra : i know what docker is i want minimal container like shown in
the link to deploy fpc micro services in the cloud

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SymbolicFrank · 2017-07-25 13:56

It's like a Linux mini-VM that can run an FPC program. Which would be
most of them, probably. Libc would have to be available.

Or a mini-VM with FPC pre-installed.

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Blestan · 2017-07-25 14:00

yes is exacly that... minimal depeddencies ... not the fp compiler
installed may be libc .... and the program it self "injected" in the
image of the container... need some ideas/help on the toolchain to be
used to buid the image

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Leledumbo · 2017-07-25 18:49

The same scratch container can be used, so the steps are the same too,
even easier since fpc compiles statically already.
Code: [Select]FROM scratch
ADD yourcompiledprog /
CMD ["/yourcompiledprog"]
should be sufficient. Indeed it is:
Code: [Select]$ sudo docker build -t hello -f hello.scratch .
[sudo] password for leledumbo:
Sending build context to Docker daemon  40.73MB
Step 1/3 : FROM scratch
 --->
Step 2/3 : ADD hello /
 ---> 5479290cd757
Removing intermediate container e8000e26f899
Step 3/3 : CMD /hello
 ---> Running in d862efdcf885
 ---> e8004dc298a6
Removing intermediate container d862efdcf885
Successfully built e8004dc298a6
Successfully tagged hello:latest
$ sudo docker run -it hello
Hello, World

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Blestan · 2017-07-25 19:49

thank you very much ... after reading alot of doker and go code i came
to the same conclusion and will try it asap

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avra · 2017-07-27 06:25

Quote from: Leledumbo on July 25, 2017, 08:49:11 pmThe same scratch
container can be used, so the steps are the same too, even easier
since fpc compiles statically already.
Thank you for your effort