pyrox.dev
1{ system ? builtins.currentSystem, pkgs ? import <nixpkgs> { inherit system; } }:
2with import ./base.nix { inherit system; };
3let
4
5 roServiceAccount = pkgs.writeText "ro-service-account.json" (builtins.toJSON {
6 kind = "ServiceAccount";
7 apiVersion = "v1";
8 metadata = {
9 name = "read-only";
10 namespace = "default";
11 };
12 });
13
14 roRoleBinding = pkgs.writeText "ro-role-binding.json" (builtins.toJSON {
15 apiVersion = "rbac.authorization.k8s.io/v1";
16 kind = "RoleBinding";
17 metadata = {
18 name = "read-pods";
19 namespace = "default";
20 };
21 roleRef = {
22 apiGroup = "rbac.authorization.k8s.io";
23 kind = "Role";
24 name = "pod-reader";
25 };
26 subjects = [{
27 kind = "ServiceAccount";
28 name = "read-only";
29 namespace = "default";
30 }];
31 });
32
33 roRole = pkgs.writeText "ro-role.json" (builtins.toJSON {
34 apiVersion = "rbac.authorization.k8s.io/v1";
35 kind = "Role";
36 metadata = {
37 name = "pod-reader";
38 namespace = "default";
39 };
40 rules = [{
41 apiGroups = [""];
42 resources = ["pods"];
43 verbs = ["get" "list" "watch"];
44 }];
45 });
46
47 kubectlPod = pkgs.writeText "kubectl-pod.json" (builtins.toJSON {
48 kind = "Pod";
49 apiVersion = "v1";
50 metadata.name = "kubectl";
51 metadata.namespace = "default";
52 metadata.labels.name = "kubectl";
53 spec.serviceAccountName = "read-only";
54 spec.containers = [{
55 name = "kubectl";
56 image = "kubectl:latest";
57 command = ["/bin/tail" "-f"];
58 imagePullPolicy = "Never";
59 tty = true;
60 }];
61 });
62
63 kubectlPod2 = pkgs.writeTextDir "kubectl-pod-2.json" (builtins.toJSON {
64 kind = "Pod";
65 apiVersion = "v1";
66 metadata.name = "kubectl-2";
67 metadata.namespace = "default";
68 metadata.labels.name = "kubectl-2";
69 spec.serviceAccountName = "read-only";
70 spec.containers = [{
71 name = "kubectl-2";
72 image = "kubectl:latest";
73 command = ["/bin/tail" "-f"];
74 imagePullPolicy = "Never";
75 tty = true;
76 }];
77 });
78
79 kubectl = pkgs.runCommand "copy-kubectl" { buildInputs = [ pkgs.kubernetes ]; } ''
80 mkdir -p $out/bin
81 cp ${pkgs.kubernetes}/bin/kubectl $out/bin/kubectl
82 '';
83
84 kubectlImage = pkgs.dockerTools.buildImage {
85 name = "kubectl";
86 tag = "latest";
87 contents = [ kubectl pkgs.busybox kubectlPod2 ];
88 config.Entrypoint = "/bin/sh";
89 };
90
91 base = {
92 name = "rbac";
93 };
94
95 singlenode = base // {
96 test = ''
97 $machine1->waitUntilSucceeds("kubectl get node machine1.my.zyx | grep -w Ready");
98
99 $machine1->execute("docker load < ${kubectlImage}");
100
101 $machine1->waitUntilSucceeds("kubectl apply -f ${roServiceAccount}");
102 $machine1->waitUntilSucceeds("kubectl apply -f ${roRole}");
103 $machine1->waitUntilSucceeds("kubectl apply -f ${roRoleBinding}");
104 $machine1->waitUntilSucceeds("kubectl create -f ${kubectlPod}");
105
106 $machine1->waitUntilSucceeds("kubectl get pod kubectl | grep Running");
107
108 $machine1->succeed("kubectl exec -ti kubectl -- kubectl get pods");
109 $machine1->fail("kubectl exec -ti kubectl -- kubectl create -f /kubectl-pod-2.json");
110 $machine1->fail("kubectl exec -ti kubectl -- kubectl delete pods -l name=kubectl");
111 '';
112 };
113
114 multinode = base // {
115 test = ''
116 $machine1->waitUntilSucceeds("kubectl get node machine1.my.zyx | grep -w Ready");
117 $machine1->waitUntilSucceeds("kubectl get node machine2.my.zyx | grep -w Ready");
118
119 $machine2->execute("docker load < ${kubectlImage}");
120
121 $machine1->waitUntilSucceeds("kubectl apply -f ${roServiceAccount}");
122 $machine1->waitUntilSucceeds("kubectl apply -f ${roRole}");
123 $machine1->waitUntilSucceeds("kubectl apply -f ${roRoleBinding}");
124 $machine1->waitUntilSucceeds("kubectl create -f ${kubectlPod}");
125
126 $machine1->waitUntilSucceeds("kubectl get pod kubectl | grep Running");
127
128 $machine1->succeed("kubectl exec -ti kubectl -- kubectl get pods");
129 $machine1->fail("kubectl exec -ti kubectl -- kubectl create -f /kubectl-pod-2.json");
130 $machine1->fail("kubectl exec -ti kubectl -- kubectl delete pods -l name=kubectl");
131 '';
132 };
133
134in {
135 singlenode = mkKubernetesSingleNodeTest singlenode;
136 multinode = mkKubernetesMultiNodeTest multinode;
137}