Add "init" parameter

[misery]

Thank you very much for this tool. I really like it and use it in a docker container.

As it is a lot easier to use a vanilla container instead of a custom Dockerfile it would help if you add a parameter like -init. So it could be used to add additional packages or something like this.

See my example here that adds a /apk path and -init apk to call it once shell2http was started.

services:
  shell:
    image: msoap/shell2http
    container_name: shell2http
    command: >
        -include-stderr -500 -init apk
        /openssl "openssl s_client -connect dummyhost:443 -status"
        /apk "apk add -U openssl"

[msoap]

hi @misery, sorry, don't quite understand what exactly the command -init does, just run shell command once on start?

i think it's better to do it separately, for example in own Docker image. because i want to keep tool as simple as possible

anyway, msoap/shell2http - it's a not vanilla container, it's more like example of docker image.

[misery]

Well, most people uses docker images "as-is" and don't want to customize it with a separate docker images since it is much more easier to just deploy the image and add flags like environment variables or something like this to the configuration in portainer, rancher or even synology docker.

So a "setup" function would help a lot here.

[msoap]

there is one solution: you can use entrypoint in docker compose, and override default binary by own shell script like:

entrypoint: >
    apk install ...
    some init shell command
    another command
    /app/shell2http -include-stderr -500 -init apk /openssl "openssl s_client -connect dummyhost:443 -status" ...

[misery]

Did you tried your example? Seems I'm too stupid to geht it working.

[msoap]

hm yes, it doesn't working, it (entrypoint) seems to require the path to the binary file and not accept shell script.

need to think, I don't like the idea of ​​-init, for example with it we cannot setup environment variables.

and for apk add -U openssl command I still think that better to build own docker image.