Build Telegram Bot API as a docker container

Use this Dockerfile if you need have a local telegram bot api server to provide webhooks and other extra
functionality for telegram bot services runed in Docker enviroment.

Telegram Bot API repository https://github.com/tdlib/telegram-bot-api
How to use gude https://core.telegram.org/bots/api#using-a-local-bot-api-server

Before run

Get you own application api id and hash on https://my.telegram.org
Put it into tg-bot-api.env file variables.

Build and run

Just run ./build.sh script
Or build manualy: docker build -t <you image name> .
And run it: 
    docker run -p <host port>:8081 --name <you container name> --env=./tg-bot-api.env <you image name>

Crossbuild

Use qemu and buildx if you need it.

Install and configure qemu the way you OS requre that
Get buidlx here https://github.com/docker/buildx
Buildix documentation here https://docs.docker.com/buildx/working-with-buildx/

Run image
docker run --privileged --rm docker/binfmt
Or (alternative)
docker run --privileged --rm  multiarch/qemu-user-static:latest

Create profile (linux/arm/v7 used as example)
docker buildx create --platform linux/arm/v7

Command returns profile name like <gallant_mahavira> use it for future configuration

Show profiles
docker buildx ls
NAME/NODE           DRIVER/ENDPOINT             STATUS  PLATFORMS
<gallant_mahavira> *  docker-container                    
  gallant_mahavira0 unix:///var/run/docker.sock running linux/arm/v7*, linux/amd64, linux/386
default             docker                              
  default           default                     running linux/amd64, linux/386

Set used by default
docker buildx use <gallant_mahavira>

Run crossbuild
docker buildx build -t <you image name> --platform linux/arm/v7 .