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0b6fa5ee40
This adds a new `imageStream` option that can be used in conjunction with `pkgs.dockerTools.streamLayeredImage` so that the image archive never needs to be materialized in the `/nix/store`. This greatly improves the disk utilization for systems that use container images built using Nix because they only need to store image layers instead of the full image. Additionally, when deploying the new system and only new layers need to be built/copied.
99 lines
2.8 KiB
Nix
99 lines
2.8 KiB
Nix
# Test Traefik as a reverse proxy of a local web service
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# and a Docker container.
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import ./make-test-python.nix ({ pkgs, ... }: {
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name = "traefik";
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meta = with pkgs.lib.maintainers; {
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maintainers = [ joko ];
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};
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nodes = {
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client = { config, pkgs, ... }: {
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environment.systemPackages = [ pkgs.curl ];
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};
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traefik = { config, pkgs, ... }: {
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virtualisation.oci-containers = {
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backend = "docker";
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containers.nginx = {
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extraOptions = [
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"-l"
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"traefik.enable=true"
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"-l"
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"traefik.http.routers.nginx.entrypoints=web"
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"-l"
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"traefik.http.routers.nginx.rule=Host(`nginx.traefik.test`)"
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];
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image = "nginx-container";
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imageStream = pkgs.dockerTools.examples.nginxStream;
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};
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};
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networking.firewall.allowedTCPPorts = [ 80 ];
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services.traefik = {
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enable = true;
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dynamicConfigOptions = {
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http.routers.simplehttp = {
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rule = "Host(`simplehttp.traefik.test`)";
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entryPoints = [ "web" ];
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service = "simplehttp";
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};
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http.services.simplehttp = {
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loadBalancer.servers = [{
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url = "http://127.0.0.1:8000";
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}];
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};
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};
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staticConfigOptions = {
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global = {
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checkNewVersion = false;
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sendAnonymousUsage = false;
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};
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entryPoints.web.address = ":\${HTTP_PORT}";
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providers.docker.exposedByDefault = false;
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};
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environmentFiles = [(pkgs.writeText "traefik.env" ''
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HTTP_PORT=80
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'')];
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};
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systemd.services.simplehttp = {
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script = "${pkgs.python3}/bin/python -m http.server 8000";
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serviceConfig.Type = "simple";
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wantedBy = [ "multi-user.target" ];
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};
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users.users.traefik.extraGroups = [ "docker" ];
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};
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};
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testScript = ''
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start_all()
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traefik.wait_for_unit("docker-nginx.service")
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traefik.wait_until_succeeds("docker ps | grep nginx-container")
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traefik.wait_for_unit("simplehttp.service")
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traefik.wait_for_unit("traefik.service")
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traefik.wait_for_open_port(80)
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traefik.wait_for_unit("multi-user.target")
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client.wait_for_unit("multi-user.target")
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client.wait_until_succeeds("curl -sSf -H Host:nginx.traefik.test http://traefik/")
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with subtest("Check that a container can be reached via Traefik"):
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assert "Hello from NGINX" in client.succeed(
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"curl -sSf -H Host:nginx.traefik.test http://traefik/"
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)
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with subtest("Check that dynamic configuration works"):
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assert "Directory listing for " in client.succeed(
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"curl -sSf -H Host:simplehttp.traefik.test http://traefik/"
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)
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'';
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})
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