137 lines
4.2 KiB
Nix
137 lines
4.2 KiB
Nix
{ system ? builtins.currentSystem, pkgs ? import <nixpkgs> { inherit system; } }:
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with import ./base.nix { inherit system; };
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let
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roServiceAccount = pkgs.writeText "ro-service-account.json" (builtins.toJSON {
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kind = "ServiceAccount";
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apiVersion = "v1";
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metadata = {
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name = "read-only";
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namespace = "default";
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};
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});
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roRoleBinding = pkgs.writeText "ro-role-binding.json" (builtins.toJSON {
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apiVersion = "rbac.authorization.k8s.io/v1beta1";
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kind = "RoleBinding";
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metadata = {
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name = "read-pods";
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namespace = "default";
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};
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roleRef = {
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apiGroup = "rbac.authorization.k8s.io";
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kind = "Role";
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name = "pod-reader";
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};
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subjects = [{
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kind = "ServiceAccount";
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name = "read-only";
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namespace = "default";
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}];
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});
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roRole = pkgs.writeText "ro-role.json" (builtins.toJSON {
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apiVersion = "rbac.authorization.k8s.io/v1beta1";
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kind = "Role";
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metadata = {
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name = "pod-reader";
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namespace = "default";
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};
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rules = [{
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apiGroups = [""];
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resources = ["pods"];
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verbs = ["get" "list" "watch"];
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}];
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});
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kubectlPod = pkgs.writeText "kubectl-pod.json" (builtins.toJSON {
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kind = "Pod";
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apiVersion = "v1";
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metadata.name = "kubectl";
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metadata.namespace = "default";
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metadata.labels.name = "kubectl";
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spec.serviceAccountName = "read-only";
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spec.containers = [{
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name = "kubectl";
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image = "kubectl:latest";
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command = ["/bin/tail" "-f"];
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imagePullPolicy = "Never";
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tty = true;
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}];
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});
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kubectlPod2 = pkgs.writeTextDir "kubectl-pod-2.json" (builtins.toJSON {
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kind = "Pod";
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apiVersion = "v1";
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metadata.name = "kubectl-2";
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metadata.namespace = "default";
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metadata.labels.name = "kubectl-2";
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spec.serviceAccountName = "read-only";
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spec.containers = [{
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name = "kubectl-2";
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image = "kubectl:latest";
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command = ["/bin/tail" "-f"];
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imagePullPolicy = "Never";
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tty = true;
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}];
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});
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kubectl = pkgs.runCommand "copy-kubectl" { buildInputs = [ pkgs.kubernetes ]; } ''
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mkdir -p $out/bin
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cp ${pkgs.kubernetes}/bin/kubectl $out/bin/kubectl
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'';
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kubectlImage = pkgs.dockerTools.buildImage {
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name = "kubectl";
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tag = "latest";
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contents = [ kubectl pkgs.busybox kubectlPod2 ];
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config.Entrypoint = "/bin/sh";
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};
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base = {
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name = "rbac";
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};
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singlenode = base // {
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test = ''
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$machine1->waitUntilSucceeds("kubectl get node machine1.my.zyx | grep -w Ready");
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$machine1->execute("docker load < ${kubectlImage}");
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$machine1->waitUntilSucceeds("kubectl apply -f ${roServiceAccount}");
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$machine1->waitUntilSucceeds("kubectl apply -f ${roRole}");
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$machine1->waitUntilSucceeds("kubectl apply -f ${roRoleBinding}");
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$machine1->waitUntilSucceeds("kubectl create -f ${kubectlPod}");
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$machine1->waitUntilSucceeds("kubectl get pod kubectl | grep Running");
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$machine1->succeed("kubectl exec -ti kubectl -- kubectl get pods");
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$machine1->fail("kubectl exec -ti kubectl -- kubectl create -f /kubectl-pod-2.json");
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$machine1->fail("kubectl exec -ti kubectl -- kubectl delete pods -l name=kubectl");
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'';
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};
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multinode = base // {
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test = ''
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$machine1->waitUntilSucceeds("kubectl get node machine1.my.zyx | grep -w Ready");
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$machine1->waitUntilSucceeds("kubectl get node machine2.my.zyx | grep -w Ready");
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$machine2->execute("docker load < ${kubectlImage}");
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$machine1->waitUntilSucceeds("kubectl apply -f ${roServiceAccount}");
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$machine1->waitUntilSucceeds("kubectl apply -f ${roRole}");
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$machine1->waitUntilSucceeds("kubectl apply -f ${roRoleBinding}");
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$machine1->waitUntilSucceeds("kubectl create -f ${kubectlPod}");
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$machine1->waitUntilSucceeds("kubectl get pod kubectl | grep Running");
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$machine1->succeed("kubectl exec -ti kubectl -- kubectl get pods");
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$machine1->fail("kubectl exec -ti kubectl -- kubectl create -f /kubectl-pod-2.json");
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$machine1->fail("kubectl exec -ti kubectl -- kubectl delete pods -l name=kubectl");
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'';
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};
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in {
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singlenode = mkKubernetesSingleNodeTest singlenode;
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multinode = mkKubernetesMultiNodeTest multinode;
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}
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