mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-11-30 17:41:12 +00:00
371 lines
14 KiB
Nix
371 lines
14 KiB
Nix
let
|
|
commonConfig = ./common/acme/client;
|
|
|
|
dnsServerIP = nodes: nodes.dnsserver.config.networking.primaryIPAddress;
|
|
|
|
dnsScript = {pkgs, nodes}: let
|
|
dnsAddress = dnsServerIP nodes;
|
|
in pkgs.writeShellScript "dns-hook.sh" ''
|
|
set -euo pipefail
|
|
echo '[INFO]' "[$2]" 'dns-hook.sh' $*
|
|
if [ "$1" = "present" ]; then
|
|
${pkgs.curl}/bin/curl --data '{"host": "'"$2"'", "value": "'"$3"'"}' http://${dnsAddress}:8055/set-txt
|
|
else
|
|
${pkgs.curl}/bin/curl --data '{"host": "'"$2"'"}' http://${dnsAddress}:8055/clear-txt
|
|
fi
|
|
'';
|
|
|
|
documentRoot = pkgs: pkgs.runCommand "docroot" {} ''
|
|
mkdir -p "$out"
|
|
echo hello world > "$out/index.html"
|
|
'';
|
|
|
|
vhostBase = pkgs: {
|
|
forceSSL = true;
|
|
locations."/".root = documentRoot pkgs;
|
|
};
|
|
|
|
in import ./make-test-python.nix ({ lib, ... }: {
|
|
name = "acme";
|
|
meta.maintainers = lib.teams.acme.members;
|
|
|
|
nodes = {
|
|
# The fake ACME server which will respond to client requests
|
|
acme = { nodes, lib, ... }: {
|
|
imports = [ ./common/acme/server ];
|
|
networking.nameservers = lib.mkForce [ (dnsServerIP nodes) ];
|
|
};
|
|
|
|
# A fake DNS server which can be configured with records as desired
|
|
# Used to test DNS-01 challenge
|
|
dnsserver = { nodes, pkgs, ... }: {
|
|
networking.firewall.allowedTCPPorts = [ 8055 53 ];
|
|
networking.firewall.allowedUDPPorts = [ 53 ];
|
|
systemd.services.pebble-challtestsrv = {
|
|
enable = true;
|
|
description = "Pebble ACME challenge test server";
|
|
wantedBy = [ "network.target" ];
|
|
serviceConfig = {
|
|
ExecStart = "${pkgs.pebble}/bin/pebble-challtestsrv -dns01 ':53' -defaultIPv6 '' -defaultIPv4 '${nodes.webserver.config.networking.primaryIPAddress}'";
|
|
# Required to bind on privileged ports.
|
|
AmbientCapabilities = [ "CAP_NET_BIND_SERVICE" ];
|
|
};
|
|
};
|
|
};
|
|
|
|
# A web server which will be the node requesting certs
|
|
webserver = { pkgs, nodes, lib, config, ... }: {
|
|
imports = [ commonConfig ];
|
|
networking.nameservers = lib.mkForce [ (dnsServerIP nodes) ];
|
|
networking.firewall.allowedTCPPorts = [ 80 443 ];
|
|
|
|
# OpenSSL will be used for more thorough certificate validation
|
|
environment.systemPackages = [ pkgs.openssl ];
|
|
|
|
# Set log level to info so that we can see when the service is reloaded
|
|
services.nginx.enable = true;
|
|
services.nginx.logError = "stderr info";
|
|
|
|
# First tests configure a basic cert and run a bunch of openssl checks
|
|
services.nginx.virtualHosts."a.example.test" = (vhostBase pkgs) // {
|
|
enableACME = true;
|
|
};
|
|
|
|
# Used to determine if service reload was triggered
|
|
systemd.targets.test-renew-nginx = {
|
|
wants = [ "acme-a.example.test.service" ];
|
|
after = [ "acme-a.example.test.service" "nginx-config-reload.service" ];
|
|
};
|
|
|
|
# Cert config changes will not cause the nginx configuration to change.
|
|
# This tests that the reload service is correctly triggered.
|
|
# It also tests that postRun is exec'd as root
|
|
specialisation.cert-change.configuration = { pkgs, ... }: {
|
|
security.acme.certs."a.example.test".keyType = "ec384";
|
|
security.acme.certs."a.example.test".postRun = ''
|
|
set -euo pipefail
|
|
touch test
|
|
chown root:root test
|
|
echo testing > test
|
|
'';
|
|
};
|
|
|
|
# Now adding an alias to ensure that the certs are updated
|
|
specialisation.nginx-aliases.configuration = { pkgs, ... }: {
|
|
services.nginx.virtualHosts."a.example.test" = {
|
|
serverAliases = [ "b.example.test" ];
|
|
};
|
|
};
|
|
|
|
# Test OCSP Stapling
|
|
specialisation.ocsp-stapling.configuration = { pkgs, ... }: {
|
|
security.acme.certs."a.example.test" = {
|
|
ocspMustStaple = true;
|
|
};
|
|
services.nginx.virtualHosts."a.example.com" = {
|
|
extraConfig = ''
|
|
ssl_stapling on;
|
|
ssl_stapling_verify on;
|
|
'';
|
|
};
|
|
};
|
|
|
|
# Test using Apache HTTPD
|
|
specialisation.httpd-aliases.configuration = { pkgs, config, lib, ... }: {
|
|
services.nginx.enable = lib.mkForce false;
|
|
services.httpd.enable = true;
|
|
services.httpd.adminAddr = config.security.acme.email;
|
|
services.httpd.virtualHosts."c.example.test" = {
|
|
serverAliases = [ "d.example.test" ];
|
|
forceSSL = true;
|
|
enableACME = true;
|
|
documentRoot = documentRoot pkgs;
|
|
};
|
|
|
|
# Used to determine if service reload was triggered
|
|
systemd.targets.test-renew-httpd = {
|
|
wants = [ "acme-c.example.test.service" ];
|
|
after = [ "acme-c.example.test.service" "httpd-config-reload.service" ];
|
|
};
|
|
};
|
|
|
|
# Validation via DNS-01 challenge
|
|
specialisation.dns-01.configuration = { pkgs, config, nodes, ... }: {
|
|
security.acme.certs."example.test" = {
|
|
domain = "*.example.test";
|
|
group = config.services.nginx.group;
|
|
dnsProvider = "exec";
|
|
dnsPropagationCheck = false;
|
|
credentialsFile = pkgs.writeText "wildcard.env" ''
|
|
EXEC_PATH=${dnsScript { inherit pkgs nodes; }}
|
|
'';
|
|
};
|
|
|
|
services.nginx.virtualHosts."dns.example.test" = (vhostBase pkgs) // {
|
|
useACMEHost = "example.test";
|
|
};
|
|
};
|
|
|
|
# Validate service relationships by adding a slow start service to nginx' wants.
|
|
# Reproducer for https://github.com/NixOS/nixpkgs/issues/81842
|
|
specialisation.slow-startup.configuration = { pkgs, config, nodes, lib, ... }: {
|
|
systemd.services.my-slow-service = {
|
|
wantedBy = [ "multi-user.target" "nginx.service" ];
|
|
before = [ "nginx.service" ];
|
|
preStart = "sleep 5";
|
|
script = "${pkgs.python3}/bin/python -m http.server";
|
|
};
|
|
|
|
services.nginx.virtualHosts."slow.example.com" = {
|
|
forceSSL = true;
|
|
enableACME = true;
|
|
locations."/".proxyPass = "http://localhost:8000";
|
|
};
|
|
};
|
|
};
|
|
|
|
# The client will be used to curl the webserver to validate configuration
|
|
client = {nodes, lib, pkgs, ...}: {
|
|
imports = [ commonConfig ];
|
|
networking.nameservers = lib.mkForce [ (dnsServerIP nodes) ];
|
|
|
|
# OpenSSL will be used for more thorough certificate validation
|
|
environment.systemPackages = [ pkgs.openssl ];
|
|
};
|
|
};
|
|
|
|
testScript = {nodes, ...}:
|
|
let
|
|
caDomain = nodes.acme.config.test-support.acme.caDomain;
|
|
newServerSystem = nodes.webserver.config.system.build.toplevel;
|
|
switchToNewServer = "${newServerSystem}/bin/switch-to-configuration test";
|
|
in
|
|
# Note, wait_for_unit does not work for oneshot services that do not have RemainAfterExit=true,
|
|
# this is because a oneshot goes from inactive => activating => inactive, and never
|
|
# reaches the active state. Targets do not have this issue.
|
|
|
|
''
|
|
import time
|
|
|
|
|
|
has_switched = False
|
|
|
|
|
|
def switch_to(node, name):
|
|
global has_switched
|
|
if has_switched:
|
|
node.succeed(
|
|
"${switchToNewServer}"
|
|
)
|
|
has_switched = True
|
|
node.succeed(
|
|
f"/run/current-system/specialisation/{name}/bin/switch-to-configuration test"
|
|
)
|
|
|
|
|
|
# Ensures the issuer of our cert matches the chain
|
|
# and matches the issuer we expect it to be.
|
|
# It's a good validation to ensure the cert.pem and fullchain.pem
|
|
# are not still selfsigned afer verification
|
|
def check_issuer(node, cert_name, issuer):
|
|
for fname in ("cert.pem", "fullchain.pem"):
|
|
actual_issuer = node.succeed(
|
|
f"openssl x509 -noout -issuer -in /var/lib/acme/{cert_name}/{fname}"
|
|
).partition("=")[2]
|
|
print(f"{fname} issuer: {actual_issuer}")
|
|
assert issuer.lower() in actual_issuer.lower()
|
|
|
|
|
|
# Ensure cert comes before chain in fullchain.pem
|
|
def check_fullchain(node, cert_name):
|
|
subject_data = node.succeed(
|
|
f"openssl crl2pkcs7 -nocrl -certfile /var/lib/acme/{cert_name}/fullchain.pem"
|
|
" | openssl pkcs7 -print_certs -noout"
|
|
)
|
|
for line in subject_data.lower().split("\n"):
|
|
if "subject" in line:
|
|
print(f"First subject in fullchain.pem: ", line)
|
|
assert cert_name.lower() in line
|
|
return
|
|
|
|
assert False
|
|
|
|
|
|
def check_connection(node, domain, retries=3):
|
|
assert retries >= 0
|
|
|
|
result = node.succeed(
|
|
"openssl s_client -brief -verify 2 -CAfile /tmp/ca.crt"
|
|
f" -servername {domain} -connect {domain}:443 < /dev/null 2>&1"
|
|
)
|
|
|
|
for line in result.lower().split("\n"):
|
|
if "verification" in line and "error" in line:
|
|
time.sleep(1)
|
|
return check_connection(node, domain, retries - 1)
|
|
|
|
|
|
def check_connection_key_bits(node, domain, bits, retries=3):
|
|
assert retries >= 0
|
|
|
|
result = node.succeed(
|
|
"openssl s_client -CAfile /tmp/ca.crt"
|
|
f" -servername {domain} -connect {domain}:443 < /dev/null"
|
|
" | openssl x509 -noout -text | grep -i Public-Key"
|
|
)
|
|
print("Key type:", result)
|
|
|
|
if bits not in result:
|
|
time.sleep(1)
|
|
return check_connection_key_bits(node, domain, bits, retries - 1)
|
|
|
|
|
|
def check_stapling(node, domain, retries=3):
|
|
assert retries >= 0
|
|
|
|
# Pebble doesn't provide a full OCSP responder, so just check the URL
|
|
result = node.succeed(
|
|
"openssl s_client -CAfile /tmp/ca.crt"
|
|
f" -servername {domain} -connect {domain}:443 < /dev/null"
|
|
" | openssl x509 -noout -ocsp_uri"
|
|
)
|
|
print("OCSP Responder URL:", result)
|
|
|
|
if "${caDomain}:4002" not in result.lower():
|
|
time.sleep(1)
|
|
return check_stapling(node, domain, retries - 1)
|
|
|
|
|
|
client.start()
|
|
dnsserver.start()
|
|
|
|
dnsserver.wait_for_unit("pebble-challtestsrv.service")
|
|
client.wait_for_unit("default.target")
|
|
|
|
client.succeed(
|
|
'curl --data \'{"host": "${caDomain}", "addresses": ["${nodes.acme.config.networking.primaryIPAddress}"]}\' http://${dnsServerIP nodes}:8055/add-a'
|
|
)
|
|
|
|
acme.start()
|
|
webserver.start()
|
|
|
|
acme.wait_for_unit("default.target")
|
|
acme.wait_for_unit("pebble.service")
|
|
|
|
client.succeed("curl https://${caDomain}:15000/roots/0 > /tmp/ca.crt")
|
|
client.succeed("curl https://${caDomain}:15000/intermediate-keys/0 >> /tmp/ca.crt")
|
|
|
|
with subtest("Can request certificate with HTTPS-01 challenge"):
|
|
webserver.wait_for_unit("acme-finished-a.example.test.target")
|
|
check_fullchain(webserver, "a.example.test")
|
|
check_issuer(webserver, "a.example.test", "pebble")
|
|
check_connection(client, "a.example.test")
|
|
|
|
with subtest("Can generate valid selfsigned certs"):
|
|
webserver.succeed("systemctl clean acme-a.example.test.service --what=state")
|
|
webserver.succeed("systemctl start acme-selfsigned-a.example.test.service")
|
|
check_fullchain(webserver, "a.example.test")
|
|
check_issuer(webserver, "a.example.test", "minica")
|
|
# Will succeed if nginx can load the certs
|
|
webserver.succeed("systemctl start nginx-config-reload.service")
|
|
|
|
with subtest("Can reload nginx when timer triggers renewal"):
|
|
webserver.succeed("systemctl start test-renew-nginx.target")
|
|
check_issuer(webserver, "a.example.test", "pebble")
|
|
check_connection(client, "a.example.test")
|
|
|
|
with subtest("Can reload web server when cert configuration changes"):
|
|
switch_to(webserver, "cert-change")
|
|
webserver.wait_for_unit("acme-finished-a.example.test.target")
|
|
check_connection_key_bits(client, "a.example.test", "384")
|
|
webserver.succeed("grep testing /var/lib/acme/a.example.test/test")
|
|
|
|
with subtest("Correctly implements OCSP stapling"):
|
|
switch_to(webserver, "ocsp-stapling")
|
|
webserver.wait_for_unit("acme-finished-a.example.test.target")
|
|
check_stapling(client, "a.example.test")
|
|
|
|
with subtest("Can request certificate with HTTPS-01 when nginx startup is delayed"):
|
|
switch_to(webserver, "slow-startup")
|
|
webserver.wait_for_unit("acme-finished-slow.example.com.target")
|
|
check_issuer(webserver, "slow.example.com", "pebble")
|
|
check_connection(client, "slow.example.com")
|
|
|
|
with subtest("Can request certificate for vhost + aliases (nginx)"):
|
|
# Check the key hash before and after adding an alias. It should not change.
|
|
# The previous test reverts the ed384 change
|
|
webserver.wait_for_unit("acme-finished-a.example.test.target")
|
|
keyhash_old = webserver.succeed("md5sum /var/lib/acme/a.example.test/key.pem")
|
|
switch_to(webserver, "nginx-aliases")
|
|
webserver.wait_for_unit("acme-finished-a.example.test.target")
|
|
check_issuer(webserver, "a.example.test", "pebble")
|
|
check_connection(client, "a.example.test")
|
|
check_connection(client, "b.example.test")
|
|
keyhash_new = webserver.succeed("md5sum /var/lib/acme/a.example.test/key.pem")
|
|
assert keyhash_old == keyhash_new
|
|
|
|
with subtest("Can request certificates for vhost + aliases (apache-httpd)"):
|
|
switch_to(webserver, "httpd-aliases")
|
|
webserver.wait_for_unit("acme-finished-c.example.test.target")
|
|
check_issuer(webserver, "c.example.test", "pebble")
|
|
check_connection(client, "c.example.test")
|
|
check_connection(client, "d.example.test")
|
|
|
|
with subtest("Can reload httpd when timer triggers renewal"):
|
|
# Switch to selfsigned first
|
|
webserver.succeed("systemctl clean acme-c.example.test.service --what=state")
|
|
webserver.succeed("systemctl start acme-selfsigned-c.example.test.service")
|
|
check_issuer(webserver, "c.example.test", "minica")
|
|
webserver.succeed("systemctl start httpd-config-reload.service")
|
|
webserver.succeed("systemctl start test-renew-httpd.target")
|
|
check_issuer(webserver, "c.example.test", "pebble")
|
|
check_connection(client, "c.example.test")
|
|
|
|
with subtest("Can request wildcard certificates using DNS-01 challenge"):
|
|
switch_to(webserver, "dns-01")
|
|
webserver.wait_for_unit("acme-finished-example.test.target")
|
|
check_issuer(webserver, "example.test", "pebble")
|
|
check_connection(client, "dns.example.test")
|
|
'';
|
|
})
|