nixpkgs/nixos/tests/etcd.nix

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# This test runs etcd as single node, multy node and using discovery
import ./make-test.nix {
name = "etcd";
nodes = {
simple =
{ config, pkgs, nodes, ... }:
{
services.etcd.enable = true;
services.etcd.listenClientUrls = ["http://0.0.0.0:4001"];
environment.systemPackages = [ pkgs.curl ];
networking.firewall.allowedTCPPorts = [ 4001 ];
};
node1 =
{ config, pkgs, nodes, ... }:
{
services = {
etcd = {
enable = true;
listenPeerUrls = ["http://0.0.0.0:7001"];
initialAdvertisePeerUrls = ["http://node1:7001"];
initialCluster = ["node1=http://node1:7001" "node2=http://node2:7001"];
};
};
networking.firewall.allowedTCPPorts = [ 7001 ];
};
node2 =
{ config, pkgs, ... }:
{
services = {
etcd = {
enable = true;
listenPeerUrls = ["http://0.0.0.0:7001"];
initialAdvertisePeerUrls = ["http://node2:7001"];
initialCluster = ["node1=http://node1:7001" "node2=http://node2:7001"];
};
};
networking.firewall.allowedTCPPorts = [ 7001 ];
};
discovery1 =
{ config, pkgs, nodes, ... }:
{
services = {
etcd = {
enable = true;
listenPeerUrls = ["http://0.0.0.0:7001"];
initialAdvertisePeerUrls = ["http://discovery1:7001"];
discovery = "http://simple:4001/v2/keys/discovery/6c007a14875d53d9bf0ef5a6fc0257c817f0fb83/";
};
};
networking.firewall.allowedTCPPorts = [ 7001 ];
};
discovery2 =
{ config, pkgs, ... }:
{
services = {
etcd = {
enable = true;
listenPeerUrls = ["http://0.0.0.0:7001"];
initialAdvertisePeerUrls = ["http://discovery2:7001"];
discovery = "http://simple:4001/v2/keys/discovery/6c007a14875d53d9bf0ef5a6fc0257c817f0fb83/";
};
};
networking.firewall.allowedTCPPorts = [ 7001 ];
};
};
testScript = ''
subtest "single node", sub {
$simple->start();
$simple->waitForUnit("etcd.service");
$simple->succeed("etcdctl set /foo/bar 'Hello world'");
$simple->waitUntilSucceeds("etcdctl get /foo/bar | grep 'Hello world'");
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};
subtest "multy node", sub {
$node1->start();
$node2->start();
$node1->waitForUnit("etcd.service");
$node2->waitForUnit("etcd.service");
$node1->succeed("etcdctl set /foo/bar 'Hello world'");
$node2->waitUntilSucceeds("etcdctl get /foo/bar | grep 'Hello world'");
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$node1->shutdown();
$node2->shutdown();
};
subtest "discovery", sub {
$simple->succeed("curl -X PUT http://localhost:4001/v2/keys/discovery/6c007a14875d53d9bf0ef5a6fc0257c817f0fb83/_config/size -d value=2");
$discovery1->start();
$discovery2->start();
$discovery1->waitForUnit("etcd.service");
$discovery2->waitForUnit("etcd.service");
$discovery1->succeed("etcdctl set /foo/bar 'Hello world'");
$discovery2->waitUntilSucceeds("etcdctl get /foo/bar | grep 'Hello world'");
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};
'';
}