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|
import ../make-test-python.nix ({ pkgs, lib, rke2, ... }:
let
pauseImage = pkgs.dockerTools.streamLayeredImage {
name = "test.local/pause";
tag = "local";
contents = pkgs.buildEnv {
name = "rke2-pause-image-env";
paths = with pkgs; [ tini bashInteractive coreutils socat ];
};
config.Entrypoint = [ "/bin/tini" "--" "/bin/sleep" "inf" ];
};
# A daemonset that responds 'server' on port 8000
networkTestDaemonset = pkgs.writeText "test.yml" ''
apiVersion: apps/v1
kind: DaemonSet
metadata:
name: test
labels:
name: test
spec:
selector:
matchLabels:
name: test
template:
metadata:
labels:
name: test
spec:
containers:
- name: test
image: test.local/pause:local
imagePullPolicy: Never
resources:
limits:
memory: 20Mi
command: ["socat", "TCP4-LISTEN:8000,fork", "EXEC:echo server"]
'';
tokenFile = pkgs.writeText "token" "p@s$w0rd";
agentTokenFile = pkgs.writeText "agent-token" "p@s$w0rd";
in
{
name = "${rke2.name}-multi-node";
meta.maintainers = rke2.meta.maintainers;
nodes = {
server1 = { pkgs, ... }: {
networking.firewall.enable = false;
networking.useDHCP = false;
networking.defaultGateway = "192.168.1.1";
networking.interfaces.eth1.ipv4.addresses = pkgs.lib.mkForce [
{ address = "192.168.1.1"; prefixLength = 24; }
];
virtualisation.memorySize = 1536;
virtualisation.diskSize = 4096;
services.rke2 = {
enable = true;
role = "server";
inherit tokenFile;
inherit agentTokenFile;
nodeName = "${rke2.name}-server1";
package = rke2;
nodeIP = "192.168.1.1";
disable = [
"rke2-coredns"
"rke2-metrics-server"
"rke2-ingress-nginx"
];
extraFlags = [
"--cluster-reset"
];
};
};
server2 = { pkgs, ... }: {
networking.firewall.enable = false;
networking.useDHCP = false;
networking.defaultGateway = "192.168.1.2";
networking.interfaces.eth1.ipv4.addresses = pkgs.lib.mkForce [
{ address = "192.168.1.2"; prefixLength = 24; }
];
virtualisation.memorySize = 1536;
virtualisation.diskSize = 4096;
services.rke2 = {
enable = true;
role = "server";
serverAddr = "https://192.168.1.1:6443";
inherit tokenFile;
inherit agentTokenFile;
nodeName = "${rke2.name}-server2";
package = rke2;
nodeIP = "192.168.1.2";
disable = [
"rke2-coredns"
"rke2-metrics-server"
"rke2-ingress-nginx"
];
};
};
agent1 = { pkgs, ... }: {
networking.firewall.enable = false;
networking.useDHCP = false;
networking.defaultGateway = "192.168.1.3";
networking.interfaces.eth1.ipv4.addresses = pkgs.lib.mkForce [
{ address = "192.168.1.3"; prefixLength = 24; }
];
virtualisation.memorySize = 1536;
virtualisation.diskSize = 4096;
services.rke2 = {
enable = true;
role = "agent";
tokenFile = agentTokenFile;
serverAddr = "https://192.168.1.2:6443";
nodeName = "${rke2.name}-agent1";
package = rke2;
nodeIP = "192.168.1.3";
};
};
};
testScript = let
kubectl = "${pkgs.kubectl}/bin/kubectl --kubeconfig=/etc/rancher/rke2/rke2.yaml";
ctr = "${pkgs.containerd}/bin/ctr -a /run/k3s/containerd/containerd.sock";
jq = "${pkgs.jq}/bin/jq";
ping = "${pkgs.iputils}/bin/ping";
in ''
machines = [server1, server2, agent1]
for machine in machines:
machine.start()
machine.wait_for_unit("rke2")
# wait for the agent to show up
server1.succeed("${kubectl} get node ${rke2.name}-agent1")
for machine in machines:
machine.succeed("${pauseImage} | ${ctr} image import -")
server1.succeed("${kubectl} cluster-info")
server1.wait_until_succeeds("${kubectl} get serviceaccount default")
# Now create a pod on each node via a daemonset and verify they can talk to each other.
server1.succeed("${kubectl} apply -f ${networkTestDaemonset}")
server1.wait_until_succeeds(
f'[ "$(${kubectl} get ds test -o json | ${jq} .status.numberReady)" -eq {len(machines)} ]'
)
# Get pod IPs
pods = server1.succeed("${kubectl} get po -o json | ${jq} '.items[].metadata.name' -r").splitlines()
pod_ips = [
server1.succeed(f"${kubectl} get po {n} -o json | ${jq} '.status.podIP' -cr").strip() for n in pods
]
# Verify each server can ping each pod ip
for pod_ip in pod_ips:
server1.succeed(f"${ping} -c 1 {pod_ip}")
agent1.succeed(f"${ping} -c 1 {pod_ip}")
# Verify the pods can talk to each other
resp = server1.wait_until_succeeds(f"${kubectl} exec {pods[0]} -- socat TCP:{pod_ips[1]}:8000 -")
assert resp.strip() == "server"
resp = server1.wait_until_succeeds(f"${kubectl} exec {pods[1]} -- socat TCP:{pod_ips[0]}:8000 -")
assert resp.strip() == "server"
# Cleanup
server1.succeed("${kubectl} delete -f ${networkTestDaemonset}")
for machine in machines:
machine.shutdown()
'';
})
|
