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|
import ./make-test-python.nix ({ pkgs, lib, ... }:
let
configDir = "/var/lib/foobar";
in {
name = "home-assistant";
meta.maintainers = lib.teams.home-assistant.members;
nodes.hass = { pkgs, ... }: {
services.postgresql = {
enable = true;
ensureDatabases = [ "hass" ];
ensureUsers = [{
name = "hass";
ensurePermissions = {
"DATABASE hass" = "ALL PRIVILEGES";
};
}];
};
services.home-assistant = {
enable = true;
inherit configDir;
# provide dependencies through package overrides
package = (pkgs.home-assistant.override {
extraPackages = ps: with ps; [
colorama
];
extraComponents = [
# test char-tty device allow propagation into the service
"zha"
];
});
# provide component dependencies explicitly from the module
extraComponents = [
"mqtt"
];
# provide package for postgresql support
extraPackages = python3Packages: with python3Packages; [
psycopg2
];
config = {
homeassistant = {
name = "Home";
time_zone = "UTC";
latitude = "0.0";
longitude = "0.0";
elevation = 0;
};
# configure the recorder component to use the postgresql db
recorder.db_url = "postgresql://@/hass";
# we can't load default_config, because the updater requires
# network access and would cause an error, so load frontend
# here explicitly.
# https://www.home-assistant.io/integrations/frontend/
frontend = {};
# include some popular integrations, that absolutely shouldn't break
knx = {};
shelly = {};
zha = {};
# set up a wake-on-lan switch to test capset capability required
# for the ping suid wrapper
# https://www.home-assistant.io/integrations/wake_on_lan/
switch = [ {
platform = "wake_on_lan";
mac = "00:11:22:33:44:55";
host = "127.0.0.1";
} ];
# test component-based capability assignment (CAP_NET_BIND_SERVICE)
# https://www.home-assistant.io/integrations/emulated_hue/
emulated_hue = {
host_ip = "127.0.0.1";
listen_port = 80;
};
# https://www.home-assistant.io/integrations/logger/
logger = {
default = "info";
};
};
# configure the sample lovelace dashboard
lovelaceConfig = {
title = "My Awesome Home";
views = [{
title = "Example";
cards = [{
type = "markdown";
title = "Lovelace";
content = "Welcome to your **Lovelace UI**.";
}];
}];
};
lovelaceConfigWritable = true;
};
# Cause a configuration change inside `configuration.yml` and verify that the process is being reloaded.
specialisation.differentName = {
inheritParentConfig = true;
configuration.services.home-assistant.config.homeassistant.name = lib.mkForce "Test Home";
};
# Cause a configuration change that requires a service restart as we added a new runtime dependency
specialisation.newFeature = {
inheritParentConfig = true;
configuration.services.home-assistant.config.backup = {};
};
};
testScript = { nodes, ... }: let
system = nodes.hass.system.build.toplevel;
in
''
import json
start_all()
def get_journal_cursor() -> str:
exit, out = hass.execute("journalctl -u home-assistant.service -n1 -o json-pretty --output-fields=__CURSOR")
assert exit == 0
return json.loads(out)["__CURSOR"]
def get_journal_since(cursor) -> str:
exit, out = hass.execute(f"journalctl --after-cursor='{cursor}' -u home-assistant.service")
assert exit == 0
return out
def get_unit_property(property) -> str:
exit, out = hass.execute(f"systemctl show --property={property} home-assistant.service")
assert exit == 0
return out
def wait_for_homeassistant(cursor):
hass.wait_until_succeeds(f"journalctl --after-cursor='{cursor}' -u home-assistant.service | grep -q 'Home Assistant initialized in'")
hass.wait_for_unit("home-assistant.service")
cursor = get_journal_cursor()
with subtest("Check that YAML configuration file is in place"):
hass.succeed("test -L ${configDir}/configuration.yaml")
with subtest("Check the lovelace config is copied because lovelaceConfigWritable = true"):
hass.succeed("test -f ${configDir}/ui-lovelace.yaml")
with subtest("Check that Home Assistant's web interface and API can be reached"):
wait_for_homeassistant(cursor)
hass.wait_for_open_port(8123)
hass.succeed("curl --fail http://localhost:8123/lovelace")
with subtest("Check that optional dependencies are in the PYTHONPATH"):
env = get_unit_property("Environment")
python_path = env.split("PYTHONPATH=")[1].split()[0]
for package in ["colorama", "paho-mqtt", "psycopg2"]:
assert package in python_path, f"{package} not in PYTHONPATH"
with subtest("Check that declaratively configured components get setup"):
journal = get_journal_since(cursor)
for domain in ["emulated_hue", "wake_on_lan"]:
assert f"Setup of domain {domain} took" in journal, f"{domain} setup missing"
with subtest("Check that capabilities are passed for emulated_hue to bind to port 80"):
hass.wait_for_open_port(80)
hass.succeed("curl --fail http://localhost:80/description.xml")
with subtest("Check extra components are considered in systemd unit hardening"):
hass.succeed("systemctl show -p DeviceAllow home-assistant.service | grep -q char-ttyUSB")
with subtest("Check service reloads when configuration changes"):
pid = hass.succeed("systemctl show --property=MainPID home-assistant.service")
cursor = get_journal_cursor()
hass.succeed("${system}/specialisation/differentName/bin/switch-to-configuration test")
new_pid = hass.succeed("systemctl show --property=MainPID home-assistant.service")
assert pid == new_pid, "The PID of the process should not change between process reloads"
wait_for_homeassistant(cursor)
with subtest("Check service restarts when dependencies change"):
pid = new_pid
cursor = get_journal_cursor()
hass.succeed("${system}/specialisation/newFeature/bin/switch-to-configuration test")
new_pid = hass.succeed("systemctl show --property=MainPID home-assistant.service")
assert pid != new_pid, "The PID of the process should change when its PYTHONPATH changess"
wait_for_homeassistant(cursor)
with subtest("Check that new components get setup after restart"):
journal = get_journal_since(cursor)
for domain in ["backup"]:
assert f"Setup of domain {domain} took" in journal, f"{domain} setup missing"
with subtest("Check that no errors were logged"):
hass.fail("journalctl -u home-assistant -o cat | grep -q ERROR")
with subtest("Check systemd unit hardening"):
hass.log(hass.succeed("systemctl cat home-assistant.service"))
hass.log(hass.succeed("systemd-analyze security home-assistant.service"))
'';
})
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