From d4a77341eea5041889dd9900aa57487b036bfb90 Mon Sep 17 00:00:00 2001
From: Daniel Patterson <me@danielpatterson.dev>
Date: Sun, 25 Jun 2023 14:21:19 +0100
Subject: [PATCH] Add podman to deck

---
 users/deck/default.nix |  1 +
 users/deck/podman.nix  | 73 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 74 insertions(+)
 create mode 100644 users/deck/podman.nix

diff --git a/users/deck/default.nix b/users/deck/default.nix
index 86fbb45..60a3aad 100644
--- a/users/deck/default.nix
+++ b/users/deck/default.nix
@@ -29,6 +29,7 @@
 in {
   imports = [
     ../configs/system
+    ./podman.nix
   ];
 
   home = {
diff --git a/users/deck/podman.nix b/users/deck/podman.nix
new file mode 100644
index 0000000..0fe8a23
--- /dev/null
+++ b/users/deck/podman.nix
@@ -0,0 +1,73 @@
+{pkgs, config, ...}: let
+  PODMAN_VERSION = "4.5.1";
+  podman-static = pkgs.stdenv.mkDerivation {
+    name = "podman-static";
+    src = pkgs.fetchzip {
+      url = "https://github.com/mgoltzsche/podman-static/releases/download/v${PODMAN_VERSION}/podman-linux-amd64.tar.gz";
+      hash = "sha256-66eReaToPuusoQI+Ooh+3bKQi39dA46etwX9REwApRc=";
+    };
+
+    runtimeDependencies = with pkgs; [
+      conmon
+      crun
+      slirp4netns
+      fuse-overlayfs
+    ];
+
+    installPhase = ''
+      mkdir -p $out
+      cp -r usr/local/bin $out
+      cp -r usr/local/lib $out
+      cp -r etc $out
+      rm $out/etc/containers/containers.conf
+
+      substituteInPlace $out/etc/containers/storage.conf \
+        --replace "/var" "${config.home.homeDirectory}/.local/share"
+
+      sed -i "s|mount_program =.*|mount_program = \"${pkgs.fuse-overlayfs}/bin/fuse-overlayfs\"|g" \
+	      "$out/etc/containers/storage.conf"
+    '';
+
+  };
+
+  dest_path = ".local/podman";
+
+  configuration = ''
+    # See https://github.com/containers/common/blob/master/pkg/config/containers.conf
+    [engine]
+    infra_image="k8s.gcr.io/pause:3.8"
+    # can be croupfs, systemd
+    cgroup_manager = "systemd"
+    # can be file, journald
+    events_logger="file"
+    exit_command_delay = 10
+    # can be runc, crun
+    runtime = "crun"
+    stop_timeout = 5
+    conmon_path = [ "${pkgs.conmon}/bin/conmon" ]
+    helper_binaries_dir = [ "${podman-static}/lib/podman" ]
+    static_dir = "${config.home.homeDirectory}/.local/share/containers/storage/libpod"
+    volume_path = "${config.home.homeDirectory}/local/share/containers/storage/volumes"
+    [engine.runtimes]
+    crun = [ "${pkgs.crun}/bin/crun" ]
+    [network]
+    cni_plugin_dirs = [ "${podman-static}/lib/cni" ]
+  '';
+
+  conf_path = ".config/containers";
+
+in
+{
+  home.packages = [
+    podman-static
+    pkgs.podman-compose
+  ];
+
+  home.file = {
+    "${conf_path}" = {
+      source = "${podman-static}/etc/containers";
+      recursive = true;
+    };
+    "${conf_path}/containers.conf".text = configuration;
+  };
+}