summaryrefslogtreecommitdiff
path: root/spec/services/clusters/gcp/kubernetes/create_service_account_service_spec.rb
blob: c32e85fed8c507cd48fe206452d126af3581dcd9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
# frozen_string_literal: true
require 'spec_helper'

describe Clusters::Gcp::Kubernetes::CreateServiceAccountService do
  include KubernetesHelpers

  let(:api_url) { 'http://111.111.111.111' }
  let(:platform_kubernetes) { cluster.platform_kubernetes }
  let(:cluster_project) { cluster.cluster_project }
  let(:project) { cluster_project.project }
  let(:cluster) do
    create(:cluster,
           :project, :provided_by_gcp,
           platform_kubernetes: create(:cluster_platform_kubernetes, :configured))
  end

  let(:kubeclient) do
    Gitlab::Kubernetes::KubeClient.new(
      api_url,
      auth_options: { username: 'admin', password: 'xxx' }
    )
  end

  shared_examples 'creates service account and token' do
    it 'creates a kubernetes service account' do
      subject

      expect(WebMock).to have_requested(:post, api_url + "/api/v1/namespaces/#{namespace}/serviceaccounts").with(
        body: hash_including(
          kind: 'ServiceAccount',
          metadata: { name: service_account_name, namespace: namespace }
        )
      )
    end

    it 'creates a kubernetes secret' do
      subject

      expect(WebMock).to have_requested(:post, api_url + "/api/v1/namespaces/#{namespace}/secrets").with(
        body: hash_including(
          kind: 'Secret',
          metadata: {
            name: token_name,
            namespace: namespace,
            annotations: {
              'kubernetes.io/service-account.name': service_account_name
            }
          },
          type: 'kubernetes.io/service-account-token'
        )
      )
    end
  end

  before do
    stub_kubeclient_discover(api_url)
    stub_kubeclient_get_namespace(api_url, namespace: namespace)
    stub_kubeclient_create_service_account(api_url, namespace: namespace )
    stub_kubeclient_create_secret(api_url, namespace: namespace)
  end

  describe '.gitlab_creator' do
    let(:namespace) { 'default' }
    let(:service_account_name) { 'gitlab' }
    let(:token_name) { 'gitlab-token' }

    subject { described_class.gitlab_creator(kubeclient, rbac: rbac).execute }

    context 'with ABAC cluster' do
      let(:rbac) { false }

      it_behaves_like 'creates service account and token'
    end

    context 'with RBAC cluster' do
      let(:rbac) { true }

      before do
        cluster.platform_kubernetes.rbac!

        stub_kubeclient_create_cluster_role_binding(api_url)
      end

      it_behaves_like 'creates service account and token'

      it 'should create a cluster role binding with cluster-admin access' do
        subject

        expect(WebMock).to have_requested(:post, api_url + "/apis/rbac.authorization.k8s.io/v1/clusterrolebindings").with(
          body: hash_including(
            kind: 'ClusterRoleBinding',
            metadata: { name: 'gitlab-admin' },
            roleRef: {
              apiGroup: 'rbac.authorization.k8s.io',
              kind: 'ClusterRole',
              name: 'cluster-admin'
            },
            subjects: [
              {
                kind: 'ServiceAccount',
                name: service_account_name,
                namespace: namespace
              }
            ]
          )
        )
      end
    end
  end

  describe '.namespace_creator' do
    let(:namespace) { "#{project.path}-#{project.id}" }
    let(:service_account_name) { "#{namespace}-service-account" }
    let(:token_name) { "#{namespace}-token" }

    subject do
      described_class.namespace_creator(
        kubeclient,
        service_account_name: service_account_name,
        service_account_namespace: namespace,
        rbac: rbac
      ).execute
    end

    context 'with ABAC cluster' do
      let(:rbac) { false }

      it_behaves_like 'creates service account and token'
    end

    context 'With RBAC enabled cluster' do
      let(:rbac) { true }

      before do
        cluster.platform_kubernetes.rbac!

        stub_kubeclient_create_role_binding(api_url, namespace: namespace)
      end

      it_behaves_like 'creates service account and token'

      it 'creates a namespaced role binding with edit access' do
        subject

        expect(WebMock).to have_requested(:post, api_url + "/apis/rbac.authorization.k8s.io/v1/namespaces/#{namespace}/rolebindings").with(
          body: hash_including(
            kind: 'RoleBinding',
            metadata: { name: "gitlab-#{namespace}", namespace: "#{namespace}" },
            roleRef: {
              apiGroup: 'rbac.authorization.k8s.io',
              kind: 'Role',
              name: 'edit'
            },
            subjects: [
              {
                kind: 'ServiceAccount',
                name: service_account_name,
                namespace: namespace
              }
            ]
          )
        )
      end
    end
  end
end