102 lines
3.2 KiB
Nix
102 lines
3.2 KiB
Nix
{ config, pkgs, lib, ... }:
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with lib;
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let
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cfg = config.virtualisation.podman;
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# System-wide script for updating containers (works with sudo)
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update-containers-script = pkgs.writeShellScriptBin "update-containers" ''
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echo "Scanning running containers..."
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containers=$(podman ps --format "{{.Names}}")
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if [[ -z "$containers" ]]; then
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echo "No running containers found."
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exit 0
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fi
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for container in $containers; do
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echo "=================================================="
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echo "Processing container: $container"
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# Get the image used by this container
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image=$(podman inspect "$container" --format "{{.ImageName}}")
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echo "Current image: $image"
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# Pull the latest version of the image
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echo "Pulling latest version of $image..."
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if podman pull "$image"; then
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# Check if the image was updated by comparing IDs
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old_id=$(podman inspect "$container" --format "{{.Image}}")
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new_id=$(podman inspect "$image" --format "{{.Id}}")
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if [[ "$old_id" != "$new_id" ]]; then
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echo "New version available! Restarting container..."
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podman restart "$container"
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echo "Container $container restarted with new image"
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else
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echo "Container $container is already using the latest image"
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fi
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else
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echo "Failed to pull image for $container"
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fi
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echo ""
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done
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echo "Container update scan complete!"
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'';
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in
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{
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options.virtualisation.podman.updateContainers = {
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enable = mkEnableOption "automatic container updates";
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interval = mkOption {
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type = types.str;
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default = "daily";
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example = "*-*-* 03:00:00";
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description = "Systemd timer schedule for automatic updates (OnCalendar format)";
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};
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};
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config = {
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# Container virtualization with Podman
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virtualisation = {
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podman = {
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enable = true;
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# Create a `docker` alias for podman, to use it as a drop-in replacement
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dockerCompat = true;
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# Required for containers under podman-compose to be able to talk to each other
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defaultNetwork.settings.dns_enabled = true;
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# Extra packages for networking
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extraPackages = [ pkgs.netavark pkgs.aardvark-dns ];
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};
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# Enable OCI container support
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oci-containers = {
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backend = "podman";
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# Container definitions are now defined in host-specific containers.nix files
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# and will be merged with this base configuration
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};
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};
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# Make update-containers available system-wide (works with sudo)
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environment.systemPackages = [ update-containers-script ];
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# Automatic container updates via systemd timer
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systemd.services.container-update-all = mkIf cfg.updateContainers.enable {
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description = "Automatic Podman container updates";
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serviceConfig = {
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Type = "oneshot";
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ExecStart = "${update-containers-script}/bin/update-containers";
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};
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};
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systemd.timers.container-update-all = mkIf cfg.updateContainers.enable {
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description = "Timer for automatic Podman container updates";
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wantedBy = [ "timers.target" ];
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timerConfig = {
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OnCalendar = cfg.updateContainers.interval;
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Persistent = true;
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};
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};
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};
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}
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