Reload the service when configuration changes. This means that we don't have a potentially slow startup for every small configuration change.
188 lines
6.6 KiB
Nix
188 lines
6.6 KiB
Nix
import ./make-test-python.nix ({ pkgs, lib, ... }:
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let
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configDir = "/var/lib/foobar";
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in {
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name = "home-assistant";
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meta.maintainers = lib.teams.home-assistant.members;
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nodes.hass = { pkgs, ... }: {
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environment.systemPackages = with pkgs; [ mosquitto ];
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services.postgresql = {
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enable = true;
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ensureDatabases = [ "hass" ];
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ensureUsers = [{
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name = "hass";
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ensurePermissions = {
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"DATABASE hass" = "ALL PRIVILEGES";
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};
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}];
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};
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services.home-assistant = {
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enable = true;
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inherit configDir;
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# tests loading components by overriding the package
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package = (pkgs.home-assistant.override {
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extraPackages = ps: with ps; [
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colorama
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];
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extraComponents = [ "zha" ];
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}).overrideAttrs (oldAttrs: {
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doInstallCheck = false;
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});
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# tests loading components from the module
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extraComponents = [
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"wake_on_lan"
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];
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# test extra package passing from the module
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extraPackages = python3Packages: with python3Packages; [
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psycopg2
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];
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config = {
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homeassistant = {
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name = "Home";
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time_zone = "UTC";
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latitude = "0.0";
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longitude = "0.0";
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elevation = 0;
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};
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# configure the recorder component to use the postgresql db
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recorder.db_url = "postgresql://@/hass";
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# we can't load default_config, because the updater requires
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# network access and would cause an error, so load frontend
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# here explicitly.
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# https://www.home-assistant.io/integrations/frontend/
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frontend = {};
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# set up a wake-on-lan switch to test capset capability required
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# for the ping suid wrapper
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# https://www.home-assistant.io/integrations/wake_on_lan/
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switch = [ {
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platform = "wake_on_lan";
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mac = "00:11:22:33:44:55";
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host = "127.0.0.1";
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} ];
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# test component-based capability assignment (CAP_NET_BIND_SERVICE)
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# https://www.home-assistant.io/integrations/emulated_hue/
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emulated_hue = {
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host_ip = "127.0.0.1";
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listen_port = 80;
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};
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# https://www.home-assistant.io/integrations/logger/
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logger = {
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default = "info";
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};
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};
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# configure the sample lovelace dashboard
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lovelaceConfig = {
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title = "My Awesome Home";
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views = [{
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title = "Example";
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cards = [{
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type = "markdown";
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title = "Lovelace";
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content = "Welcome to your **Lovelace UI**.";
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}];
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}];
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};
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lovelaceConfigWritable = true;
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};
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# Cause a configuration change inside `configuration.yml` and verify that the process is being reloaded.
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specialisation.differentName = {
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inheritParentConfig = true;
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configuration.services.home-assistant.config.homeassistant.name = lib.mkForce "Test Home";
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};
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# Cause a configuration change that requires a service restart as we added a new runtime dependency
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specialisation.newFeature = {
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inheritParentConfig = true;
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configuration.services.home-assistant.config.device_tracker = [
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{ platform = "bluetooth_tracker"; }
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];
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};
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};
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testScript = { nodes, ... }: let
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system = nodes.hass.config.system.build.toplevel;
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in
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''
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import re
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start_all()
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# Parse the package path out of the systemd unit, as we cannot
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# access the final package, that is overriden inside the module,
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# by any other means.
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pattern = re.compile(r"path=(?P<path>[\/a-z0-9-.]+)\/bin\/hass")
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response = hass.execute("systemctl show -p ExecStart home-assistant.service")[1]
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match = pattern.search(response)
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assert match
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package = match.group('path')
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hass.wait_for_unit("home-assistant.service")
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with subtest("Check that YAML configuration file is in place"):
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hass.succeed("test -L ${configDir}/configuration.yaml")
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with subtest("Check the lovelace config is copied because lovelaceConfigWritable = true"):
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hass.succeed("test -f ${configDir}/ui-lovelace.yaml")
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with subtest("Check extraComponents and extraPackages are considered from the package"):
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hass.succeed(f"grep -q 'colorama' {package}/extra_packages")
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hass.succeed(f"grep -q 'zha' {package}/extra_components")
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with subtest("Check extraComponents and extraPackages are considered from the module"):
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hass.succeed(f"grep -q 'psycopg2' {package}/extra_packages")
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hass.succeed(f"grep -q 'wake_on_lan' {package}/extra_components")
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with subtest("Check that Home Assistant's web interface and API can be reached"):
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hass.wait_until_succeeds("journalctl -u home-assistant.service | grep -q 'Home Assistant initialized in'")
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hass.wait_for_open_port(8123)
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hass.succeed("curl --fail http://localhost:8123/lovelace")
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with subtest("Check that capabilities are passed for emulated_hue to bind to port 80"):
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hass.wait_for_open_port(80)
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hass.succeed("curl --fail http://localhost:80/description.xml")
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with subtest("Check extra components are considered in systemd unit hardening"):
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hass.succeed("systemctl show -p DeviceAllow home-assistant.service | grep -q char-ttyUSB")
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with subtest("Check service reloads when configuration changes"):
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# store the old pid of the process
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pid = hass.succeed("systemctl show --property=MainPID home-assistant.service")
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hass.succeed("${system}/specialisation/differentName/bin/switch-to-configuration test")
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new_pid = hass.succeed("systemctl show --property=MainPID home-assistant.service")
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assert pid == new_pid, "The PID of the process should not change between process reloads"
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with subtest("check service restarts when package changes"):
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pid = new_pid
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hass.succeed("${system}/specialisation/newFeature/bin/switch-to-configuration test")
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new_pid = hass.succeed("systemctl show --property=MainPID home-assistant.service")
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assert pid != new_pid, "The PID of the process shoudl change when the HA binary changes"
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with subtest("Print log to ease debugging"):
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output_log = hass.succeed("cat ${configDir}/home-assistant.log")
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print("\n### home-assistant.log ###\n")
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print(output_log + "\n")
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with subtest("Check that no errors were logged"):
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assert "ERROR" not in output_log
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with subtest("Check systemd unit hardening"):
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hass.log(hass.succeed("systemctl cat home-assistant.service"))
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hass.log(hass.succeed("systemd-analyze security home-assistant.service"))
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'';
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})
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