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https://github.com/ilyakooo0/urbit.git
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8d8dc826cb
Vere will not run a ship if STDIN is closed, unless passed the `-t` flag. Hosted docker containers will not be interactive, but we would like the docker image to be usable locally and interactively as well. Thus, we check for STDIN being closed in the shell prior to launching Vere, and if it is closed, pass the `-t` flag.
69 lines
1.8 KiB
Nix
69 lines
1.8 KiB
Nix
{ urbit, libcap, coreutils, bashInteractive, dockerTools, writeScriptBin, amesPort ? 34343 }:
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let
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startUrbit = writeScriptBin "start-urbit" ''
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#!${bashInteractive}/bin/bash
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set -eu
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# If the container is not started with the `-i` flag
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# then STDIN will be closed and we need to start
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# Urbit/vere with the `-t` flag.
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ttyflag=""
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if [ ! -t 0 ]; then
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echo "Running with no STDIN"
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ttyflag="-t"
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fi
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# Check if there is a keyfile, if so boot a ship with its name, and then remove the key
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if [ -e *.key ]; then
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# Get the name of the key
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keynames="*.key"
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keys=( $keynames )
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keyname=''${keys[0]}
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mv $keyname /tmp
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# Boot urbit with the key, exit when done booting
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urbit $ttyflag -w $(basename $keyname .key) -k /tmp/$keyname -c $(basename $keyname .key) -p ${toString amesPort} -x
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# Remove the keyfile for security
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rm /tmp/$keyname
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rm *.key || true
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elif [ -e *.comet ]; then
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cometnames="*.comet"
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comets=( $cometnames )
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cometname=''${comets[0]}
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rm *.comet
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urbit $ttyflag -c $(basename $cometname .comet) -p ${toString amesPort} -x
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fi
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# Find the first directory and start urbit with the ship therein
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dirnames="*/"
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dirs=( $dirnames )
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dirname=''${dirnames[0]}
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urbit $ttyflag -p ${toString amesPort} $dirname
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'';
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in dockerTools.buildImage {
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name = "urbit";
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tag = "v${urbit.version}";
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contents = [ bashInteractive urbit startUrbit coreutils ];
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runAsRoot = ''
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#!${bashInteractive}
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mkdir -p /urbit
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mkdir -p /tmp
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${libcap}/bin/setcap 'cap_net_bind_service=+ep' /bin/urbit
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'';
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config = {
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Cmd = [ "/bin/start-urbit" ];
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Env = [ "PATH=/bin" ];
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WorkingDir = "/urbit";
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Volumes = {
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"/urbit" = {};
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};
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Expose = [ "80/tcp" "${toString amesPort}/udp" ];
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};
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}
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