ihrwein

When we started to create our own Docker images we didn't have much experience in this area. I think our current solution solves many problems but leaves one problem open: it's too complex. It it good for our first try, we learned many things from it and got a lot of useful preliminary work on our Docker images but I think we should move on.

Base images

What I expect as an user

When I try to use some software through Docker I visit Docker Hub and search for a name: syslog-ng. I don't care what's the underlying operating system I'm only interested in the software.

If I want to use a specific version I expect to work the following commands:

ihrwein

I'm the function: host=localhost 1st arg=first_arg 2nd arg=second_arg

ihrwein

wget -qO - http://download.opensuse.org/repositories/home:/laszlo_budai:/syslog-ng/Debian_8.0/Release.key | apt-key add -
echo 'deb http://download.opensuse.org/repositories/home:/laszlo_budai:/syslog-ng/Debian_8.0 ./' >> /etc/apt/sources.list.d/syslog-ng-obs.list

ihrwein

/* automatically generated by rust-bindgen */

pub type ptrdiff_t = ::libc::c_long;
pub type size_t = ::libc::c_ulong;
pub type wchar_t = ::libc::c_int;
pub type gint8 = ::libc::c_char;
pub type guint8 = ::libc::c_uchar;
pub type gint16 = ::libc::c_short;
pub type guint16 = ::libc::c_ushort;
pub type gint32 = ::libc::c_int;

ihrwein

A feladat celja egy korokre osztott halozati torpedo jatek keszitese szoveges                                                                    
felhasznalo interfesszel.  A torpedo jatekot ket fel jatssza egymas ellen. A                                                                     
szerver egyszerre tobb parhuzamos jatekot is tamogat, melynek maximalis szamat                                                                   
forditas idoben lehet megadni.                                                                                                                   
                                                                                                                                                 
A jatekok futasahoz eloszor a szervert kell elinditani, mely egy adott TCP                                                                       
porton varja a kliensek csatlakozasat. Miutan ket jatekra varo kliens is                                                                         
cs

ihrwein

/*
 1. copy getch() into getch.c from here: http://stackoverflow.com/a/912796/3989982
 2. compile getch.c with: gcc -o libgetch.so -shared -fPIC getch.c
 3. create getch.rs with the below content
 4. compile getch.rs: rustc -L. getch.rs
 5. run it: LD_LIBRARY_PATH=. ./getch
 
 You can extract these steps into a build script (or someone can make a platform independent getch based on this)

*/

ihrwein

// D is some data shared among event handlers
pub trait EventHandler<D> {
    fn handle_event(&mut self, &mut D);
}

pub struct EH;

impl<'a> EventHandler<Data<'a>> for EH {
    fn handle_event(&mut self, data: &mut Data<'a>) {
        println!("{}", data._d1);

ihrwein

extern crate alloc;
extern crate libc;

use std::mem;
use std::ptr;

pub struct Trie {
    data: alloc::raw_vec::RawVec<u8>,
}

ihrwein

The built image for a hello world project is less than 8 MB.

Builder image (it'd be best to upload this image to Docker Hub. This is 100% percent reusable).

FROM ubuntu:latest

ENV TARGET=x86_64-unknown-linux-musl
ENV BUILD_DIR=/src/target/x86_64-unknown-linux-musl/release/

ihrwein

syntax on
set hlsearch
set expandtab
set tabstop=4