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nixpkgs/nixos/tests/kubernetes/dns.nix
2017-09-24 11:44:25 +02:00

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3.1 KiB
Nix

{ system ? builtins.currentSystem }:
with import ../../lib/testing.nix { inherit system; };
with import ../../lib/qemu-flags.nix;
with pkgs.lib;
let
servers.master = "192.168.1.1";
servers.one = "192.168.1.10";
certs = import ./certs.nix { inherit servers; };
redisPod = pkgs.writeText "redis-master-pod.json" (builtins.toJSON {
kind = "Pod";
apiVersion = "v1";
metadata.name = "redis";
metadata.labels.name = "redis";
spec.containers = [{
name = "redis";
image = "redis";
args = ["--bind" "0.0.0.0"];
imagePullPolicy = "Never";
ports = [{
name = "redis-server";
containerPort = 6379;
}];
}];
});
redisService = pkgs.writeText "redis-service.json" (builtins.toJSON {
kind = "Service";
apiVersion = "v1";
metadata.name = "redis";
spec = {
ports = [{port = 6379; targetPort = 6379;}];
selector = {name = "redis";};
};
});
redisImage = pkgs.dockerTools.buildImage {
name = "redis";
tag = "latest";
contents = [ pkgs.redis pkgs.bind.dnsutils pkgs.coreutils pkgs.inetutils pkgs.nmap ];
config.Entrypoint = "/bin/redis-server";
};
test = ''
$master->waitUntilSucceeds("kubectl get node master.nixos.xyz | grep Ready");
$master->waitUntilSucceeds("kubectl get node one.nixos.xyz | grep Ready");
$one->execute("docker load < ${redisImage}");
$master->waitUntilSucceeds("kubectl create -f ${redisPod} || kubectl apply -f ${redisPod}");
$master->waitUntilSucceeds("kubectl create -f ${redisService} || kubectl apply -f ${redisService}");
$master->waitUntilSucceeds("kubectl get pod redis | grep Running");
$master->succeed("dig \@192.168.1.1 redis.default.svc.cluster.local");
$one->succeed("dig \@192.168.1.10 redis.default.svc.cluster.local");
$master->succeed("kubectl exec -ti redis -- cat /etc/resolv.conf | grep 'nameserver 192.168.1.10'");
$master->succeed("kubectl exec -ti redis -- dig \@192.168.1.10 redis.default.svc.cluster.local");
'';
in makeTest {
name = "kubernetes-dns";
nodes = {
master =
{ config, pkgs, lib, nodes, ... }:
mkMerge [
{
virtualisation.memorySize = 768;
virtualisation.diskSize = 4096;
networking.interfaces.eth1.ip4 = mkForce [{address = servers.master; prefixLength = 24;}];
networking.primaryIPAddress = mkForce servers.master;
}
(import ./kubernetes-common.nix { inherit pkgs config certs servers; })
(import ./kubernetes-master.nix { inherit pkgs config certs; })
];
one =
{ config, pkgs, lib, nodes, ... }:
mkMerge [
{
virtualisation.memorySize = 768;
virtualisation.diskSize = 4096;
networking.interfaces.eth1.ip4 = mkForce [{address = servers.one; prefixLength = 24;}];
networking.primaryIPAddress = mkForce servers.one;
services.kubernetes.roles = ["node"];
}
(import ./kubernetes-common.nix { inherit pkgs config certs servers; })
];
};
testScript = ''
startAll;
${test}
'';
}