write-ups-challenges-2020-2021/lost-keys/image.nix

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Nix
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2022-11-24 17:03:20 +00:00
{ pkgs ? import <nixpkgs> {} }:
let utils = import ../deployment/utils.nix {} ;
files = [
(utils.copy ./flag.txt "home/joske/flag.txt")
(pkgs.writeTextDir "home/joske/.ssh/authorized_keys" ''
ssh-rsa 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 nibor@Rylia
'')
] ;
in
pkgs.dockerTools.buildImage {
name = "lost-keys";
tag = "latest";
contents = files ++ [ pkgs.busybox ];
runAsRoot = ''
${pkgs.dockerTools.shadowSetup}
useradd -U -m joske
mkdir -p /home/joske/
chown -R joske:joske /home/joske/
echo "joske:hvfu7s7xBNGe6Rxa" | chpasswd
mkdir -p /root
${pkgs.dropbear}/bin/dropbearkey -t rsa -f /root/hostkey
chmod o-r /root/hostkey
chmod -R -w /home/joske/
'';
config = {
ExposedPorts = {
"2222/tcp" = {};
};
Cmd = [ "${pkgs.dropbear}/bin/dropbear" "-r" "/root/hostkey" "-F" "-g" "-j" "-k" "-p" "2222" ];
};
}