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nixpkgs/nixos/tests/pacemaker.nix
Silvan Mosberger 4f0dadbf38 treewide: format all inactive Nix files
After final improvements to the official formatter implementation,
this commit now performs the first treewide reformat of Nix files using it.
This is part of the implementation of RFC 166.

Only "inactive" files are reformatted, meaning only files that
aren't being touched by any PR with activity in the past 2 months.
This is to avoid conflicts for PRs that might soon be merged.
Later we can do a full treewide reformat to get the rest,
which should not cause as many conflicts.

A CI check has already been running for some time to ensure that new and
already-formatted files are formatted, so the files being reformatted here
should also stay formatted.

This commit was automatically created and can be verified using

    nix-build a08b3a4d19.tar.gz \
      --argstr baseRev b32a094368
    result/bin/apply-formatting $NIXPKGS_PATH
2024-12-10 20:26:33 +01:00

119 lines
3.8 KiB
Nix

import ./make-test-python.nix (
{ pkgs, lib, ... }:
rec {
name = "pacemaker";
meta = with pkgs.lib.maintainers; {
maintainers = [ astro ];
};
nodes =
let
node = i: {
networking.interfaces.eth1.ipv4.addresses = [
{
address = "192.168.0.${toString i}";
prefixLength = 24;
}
];
services.corosync = {
enable = true;
clusterName = "zentralwerk-network";
nodelist = lib.imap (i: name: {
nodeid = i;
inherit name;
ring_addrs = [
(builtins.head nodes.${name}.networking.interfaces.eth1.ipv4.addresses).address
];
}) (builtins.attrNames nodes);
};
environment.etc."corosync/authkey" = {
source =
builtins.toFile "authkey"
# minimum length: 128 bytes
"testtesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttest";
mode = "0400";
};
services.pacemaker.enable = true;
# used for pacemaker resource
systemd.services.ha-cat = {
description = "Highly available netcat";
serviceConfig.ExecStart = "${pkgs.netcat}/bin/nc -l discard";
};
};
in
{
node1 = node 1;
node2 = node 2;
node3 = node 3;
};
# sets up pacemaker with resources configuration, then crashes a
# node and waits for service restart on another node
testScript =
let
resources = builtins.toFile "cib-resources.xml" ''
<resources>
<primitive id="cat" class="systemd" type="ha-cat">
<operations>
<op id="stop-cat" name="start" interval="0" timeout="1s"/>
<op id="start-cat" name="start" interval="0" timeout="1s"/>
<op id="monitor-cat" name="monitor" interval="1s" timeout="1s"/>
</operations>
</primitive>
</resources>
'';
in
''
import re
import time
start_all()
${lib.concatMapStrings (node: ''
${node}.wait_until_succeeds("corosync-quorumtool")
${node}.wait_for_unit("pacemaker.service")
'') (builtins.attrNames nodes)}
# No STONITH device
node1.succeed("crm_attribute -t crm_config -n stonith-enabled -v false")
# Configure the cat resource
node1.succeed("cibadmin --replace --scope resources --xml-file ${resources}")
# wait until the service is started
while True:
output = node1.succeed("crm_resource -r cat --locate")
match = re.search("is running on: (.+)", output)
if match:
for machine in machines:
if machine.name == match.group(1):
current_node = machine
break
time.sleep(1)
current_node.log("Service running here!")
current_node.crash()
# pick another node that's still up
for machine in machines:
if machine.booted:
check_node = machine
# find where the service has been started next
while True:
output = check_node.succeed("crm_resource -r cat --locate")
match = re.search("is running on: (.+)", output)
# output will remain the old current_node until the crash is detected by pacemaker
if match and match.group(1) != current_node.name:
for machine in machines:
if machine.name == match.group(1):
next_node = machine
break
time.sleep(1)
next_node.log("Service migrated here!")
'';
}
)