66 lines
2.1 KiB
Nix
66 lines
2.1 KiB
Nix
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{ config, lib, pkgs, ... }:
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let
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# Provides a fake "docker" binary mapping to podman
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cfg = config.services.podman;
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podmanPackage = cfg.package;
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docker_host = "unix:///run/user/$UID/podman/podman.sock";
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fakeDockerBinary = pkgs.runCommandNoCC "${podmanPackage.pname}-docker-compat-${podmanPackage.version}"
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{
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outputs = [ "out" "man" ];
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inherit (podmanPackage) meta;
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} ''
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mkdir -p $out/bin
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ln -s ${podmanPackage}/bin/podman $out/bin/docker
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mkdir -p $man/share/man/man1
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for f in ${podmanPackage.man}/share/man/man1/*; do
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basename=$(basename $f | sed s/podman/docker/g)
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ln -s $f $man/share/man/man1/$basename
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done
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'';
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dockerComposeCompat = pkgs.runCommandNoCC "docker-compose-podman-compat"
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{
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buildInputs = [ pkgs.makeWrapper ];
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} ''
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mkdir -p $out/bin
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makeWrapper '${pkgs.docker-compose_2}/libexec/docker/cli-plugins/docker-compose' "$out/bin/docker-compose" \
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--set-default "DOCKER_HOST" 'unix:///run/user/$UID/podman/podman.sock' \
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--set-default DOCKER_BUILDKIT 0
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'';
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in
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with lib; {
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options.services.podman = {
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dockerCompat =
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{
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fakeDockerBinary.enable = mkEnableOption {
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description = ''
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Create an alias mapping <command>docker</command> to <command>podman</command>.
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'';
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};
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dockerSocket.enable = mkEnableOption {
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description = ''
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Set the DOCKER_HOST environment variable to make docker tools use the podman docker
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'';
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};
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dockerCompose.enable = mkEnableOption {
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description = ''
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Install a docker-compose binary that uses the podman socket
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'';
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};
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};
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};
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config = lib.mkIf cfg.enable (lib.mkMerge [
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(lib.mkIf cfg.dockerCompat.fakeDockerBinary.enable {
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home.packages = [ fakeDockerBinary ];
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})
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(lib.mkIf cfg.dockerCompat.dockerCompose.enable {
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home.packages = [ dockerComposeCompat ];
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})
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(lib.mkIf cfg.dockerCompat.dockerSocket.enable {
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home.sessionVariables."DOCKER_HOST" = "unix:///run/user/$UID/podman/podman.sock";
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})
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]);
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}
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