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|
{ system ? builtins.currentSystem, pkgs ? import ../../.. { inherit system; } }:
with import ./base.nix { inherit system; };
let
roServiceAccount = pkgs.writeText "ro-service-account.json" (builtins.toJSON {
kind = "ServiceAccount";
apiVersion = "v1";
metadata = {
name = "read-only";
namespace = "default";
};
});
roRoleBinding = pkgs.writeText "ro-role-binding.json" (builtins.toJSON {
apiVersion = "rbac.authorization.k8s.io/v1";
kind = "RoleBinding";
metadata = {
name = "read-pods";
namespace = "default";
};
roleRef = {
apiGroup = "rbac.authorization.k8s.io";
kind = "Role";
name = "pod-reader";
};
subjects = [{
kind = "ServiceAccount";
name = "read-only";
namespace = "default";
}];
});
roRole = pkgs.writeText "ro-role.json" (builtins.toJSON {
apiVersion = "rbac.authorization.k8s.io/v1";
kind = "Role";
metadata = {
name = "pod-reader";
namespace = "default";
};
rules = [{
apiGroups = [""];
resources = ["pods"];
verbs = ["get" "list" "watch"];
}];
});
kubectlPod = pkgs.writeText "kubectl-pod.json" (builtins.toJSON {
kind = "Pod";
apiVersion = "v1";
metadata.name = "kubectl";
metadata.namespace = "default";
metadata.labels.name = "kubectl";
spec.serviceAccountName = "read-only";
spec.containers = [{
name = "kubectl";
image = "kubectl:latest";
command = ["/bin/tail" "-f"];
imagePullPolicy = "Never";
tty = true;
}];
});
kubectlPod2 = pkgs.writeTextDir "kubectl-pod-2.json" (builtins.toJSON {
kind = "Pod";
apiVersion = "v1";
metadata.name = "kubectl-2";
metadata.namespace = "default";
metadata.labels.name = "kubectl-2";
spec.serviceAccountName = "read-only";
spec.containers = [{
name = "kubectl-2";
image = "kubectl:latest";
command = ["/bin/tail" "-f"];
imagePullPolicy = "Never";
tty = true;
}];
});
copyKubectl = pkgs.runCommand "copy-kubectl" { } ''
mkdir -p $out/bin
cp ${pkgs.kubernetes}/bin/kubectl $out/bin/kubectl
'';
kubectlImage = pkgs.dockerTools.buildImage {
name = "kubectl";
tag = "latest";
contents = [ copyKubectl pkgs.busybox kubectlPod2 ];
config.Entrypoint = ["/bin/sh"];
};
base = {
name = "rbac";
};
singlenode = base // {
test = ''
machine1.wait_until_succeeds("kubectl get node machine1.my.zyx | grep -w Ready")
machine1.wait_until_succeeds(
"${pkgs.gzip}/bin/zcat ${kubectlImage} | ${pkgs.containerd}/bin/ctr -n k8s.io image import -"
)
machine1.wait_until_succeeds(
"kubectl apply -f ${roServiceAccount}"
)
machine1.wait_until_succeeds(
"kubectl apply -f ${roRole}"
)
machine1.wait_until_succeeds(
"kubectl apply -f ${roRoleBinding}"
)
machine1.wait_until_succeeds(
"kubectl create -f ${kubectlPod}"
)
machine1.wait_until_succeeds("kubectl get pod kubectl | grep Running")
machine1.wait_until_succeeds("kubectl exec kubectl -- kubectl get pods")
machine1.fail("kubectl exec kubectl -- kubectl create -f /kubectl-pod-2.json")
machine1.fail("kubectl exec kubectl -- kubectl delete pods -l name=kubectl")
'';
};
multinode = base // {
test = ''
# Node token exchange
machine1.wait_until_succeeds(
"cp -f /var/lib/cfssl/apitoken.secret /tmp/shared/apitoken.secret"
)
machine2.wait_until_succeeds(
"cat /tmp/shared/apitoken.secret | nixos-kubernetes-node-join"
)
machine1.wait_until_succeeds("kubectl get node machine2.my.zyx | grep -w Ready")
machine2.wait_until_succeeds(
"${pkgs.gzip}/bin/zcat ${kubectlImage} | ${pkgs.containerd}/bin/ctr -n k8s.io image import -"
)
machine1.wait_until_succeeds(
"kubectl apply -f ${roServiceAccount}"
)
machine1.wait_until_succeeds(
"kubectl apply -f ${roRole}"
)
machine1.wait_until_succeeds(
"kubectl apply -f ${roRoleBinding}"
)
machine1.wait_until_succeeds(
"kubectl create -f ${kubectlPod}"
)
machine1.wait_until_succeeds("kubectl get pod kubectl | grep Running")
machine1.wait_until_succeeds("kubectl exec kubectl -- kubectl get pods")
machine1.fail("kubectl exec kubectl -- kubectl create -f /kubectl-pod-2.json")
machine1.fail("kubectl exec kubectl -- kubectl delete pods -l name=kubectl")
'';
};
in {
singlenode = mkKubernetesSingleNodeTest singlenode;
multinode = mkKubernetesMultiNodeTest multinode;
}
|