2018-09-06 10:03:38 +00:00
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# frozen_string_literal: true
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require 'spec_helper'
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describe Gitlab::Kubernetes::KubeClient do
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2019-07-19 02:12:02 +00:00
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include StubRequests
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2018-09-06 10:03:38 +00:00
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include KubernetesHelpers
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let(:api_url) { 'https://kubernetes.example.com/prefix' }
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let(:kubeclient_options) { { auth_options: { bearer_token: 'xyz' } } }
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2018-10-23 10:52:34 +00:00
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let(:client) { described_class.new(api_url, kubeclient_options) }
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2018-09-06 10:03:38 +00:00
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before do
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stub_kubeclient_discover(api_url)
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end
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2019-07-19 02:12:02 +00:00
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def method_call(client, method_name)
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case method_name
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when /\A(get_|delete_)/
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client.public_send(method_name)
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when /\A(create_|update_)/
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client.public_send(method_name, {})
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else
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raise "Unknown method name #{method_name}"
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end
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end
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2018-10-03 02:36:00 +00:00
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shared_examples 'a Kubeclient' do
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it 'is a Kubeclient::Client' do
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is_expected.to be_an_instance_of Kubeclient::Client
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2018-09-06 10:03:38 +00:00
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end
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2018-10-03 02:36:00 +00:00
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it 'has the kubeclient options' do
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expect(subject.auth_options).to eq({ bearer_token: 'xyz' })
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2018-09-06 10:03:38 +00:00
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end
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end
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2019-01-09 23:26:40 +00:00
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shared_examples 'redirection not allowed' do |method_name|
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2019-07-19 02:12:02 +00:00
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context 'api_url is redirected' do
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before do
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redirect_url = 'https://not-under-our-control.example.com/api/v1/pods'
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2019-01-09 23:26:40 +00:00
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2019-07-19 02:12:02 +00:00
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stub_request(:get, %r{\A#{api_url}/})
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.to_return(status: 302, headers: { location: redirect_url })
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2019-01-09 23:26:40 +00:00
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2019-07-19 02:12:02 +00:00
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stub_request(:get, redirect_url)
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.to_return(status: 200, body: '{}')
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end
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2019-01-09 23:26:40 +00:00
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2019-07-19 02:12:02 +00:00
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it 'does not follow redirects' do
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expect { method_call(client, method_name) }.to raise_error(Kubeclient::HttpError)
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2019-01-09 23:26:40 +00:00
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end
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2019-07-19 02:12:02 +00:00
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end
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end
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shared_examples 'dns rebinding not allowed' do |method_name|
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it 'does not allow DNS rebinding' do
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stub_dns(api_url, ip_address: '8.8.8.8')
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client
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stub_dns(api_url, ip_address: '192.168.2.120')
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expect { method_call(client, method_name) }.to raise_error(ArgumentError, /is blocked/)
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2019-01-09 23:26:40 +00:00
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end
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end
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2020-05-14 21:07:52 +00:00
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describe '.graceful_request' do
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context 'successful' do
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before do
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allow(client).to receive(:foo).and_return(true)
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end
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it 'returns connected status and foo response' do
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result = described_class.graceful_request(1) { client.foo }
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expect(result).to eq({ status: :connected, response: true })
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end
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end
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context 'errored' do
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using RSpec::Parameterized::TableSyntax
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where(:error, :error_status) do
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SocketError | :unreachable
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OpenSSL::X509::CertificateError | :authentication_failure
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StandardError | :unknown_failure
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Kubeclient::HttpError.new(408, "timed out", nil) | :unreachable
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Kubeclient::HttpError.new(408, "timeout", nil) | :unreachable
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Kubeclient::HttpError.new(408, "", nil) | :authentication_failure
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end
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with_them do
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before do
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allow(client).to receive(:foo).and_raise(error)
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end
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it 'returns error status' do
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result = described_class.graceful_request(1) { client.foo }
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expect(result).to eq({ status: error_status })
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end
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end
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end
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end
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2019-02-12 20:46:59 +00:00
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describe '#initialize' do
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shared_examples 'local address' do
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it 'blocks local addresses' do
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expect { client }.to raise_error(Gitlab::UrlBlocker::BlockedUrlError)
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end
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context 'when local requests are allowed' do
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before do
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2019-07-26 10:21:52 +00:00
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stub_application_setting(allow_local_requests_from_web_hooks_and_services: true)
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2019-02-12 20:46:59 +00:00
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end
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it 'allows local addresses' do
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expect { client }.not_to raise_error
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end
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end
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end
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context 'localhost address' do
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let(:api_url) { 'http://localhost:22' }
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it_behaves_like 'local address'
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end
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context 'private network address' do
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let(:api_url) { 'http://192.168.1.2:3003' }
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it_behaves_like 'local address'
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end
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2020-02-09 12:08:54 +00:00
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it 'falls back to default options, but allows overriding' do
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client = Gitlab::Kubernetes::KubeClient.new(api_url, {})
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defaults = Gitlab::Kubernetes::KubeClient::DEFAULT_KUBECLIENT_OPTIONS
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expect(client.kubeclient_options[:timeouts]).to eq(defaults[:timeouts])
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client = Gitlab::Kubernetes::KubeClient.new(api_url, timeouts: { read: 7 })
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expect(client.kubeclient_options[:timeouts][:read]).to eq(7)
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expect(client.kubeclient_options[:timeouts][:open]).to eq(defaults[:timeouts][:open])
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end
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2019-02-12 20:46:59 +00:00
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end
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2018-10-03 02:36:00 +00:00
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describe '#core_client' do
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subject { client.core_client }
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2018-09-06 10:03:38 +00:00
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2018-10-03 02:36:00 +00:00
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it_behaves_like 'a Kubeclient'
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2018-09-06 10:03:38 +00:00
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2018-10-03 02:36:00 +00:00
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it 'has the core API endpoint' do
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expect(subject.api_endpoint.to_s).to match(%r{\/api\Z})
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2018-09-06 10:03:38 +00:00
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end
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it 'has the api_version' do
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2018-10-03 02:36:00 +00:00
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expect(subject.instance_variable_get(:@api_version)).to eq('v1')
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2018-09-06 10:03:38 +00:00
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end
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end
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describe '#rbac_client' do
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subject { client.rbac_client }
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2018-10-03 02:36:00 +00:00
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it_behaves_like 'a Kubeclient'
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2018-09-06 10:03:38 +00:00
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it 'has the RBAC API group endpoint' do
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expect(subject.api_endpoint.to_s).to match(%r{\/apis\/rbac.authorization.k8s.io\Z})
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end
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2018-10-03 02:36:00 +00:00
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it 'has the api_version' do
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expect(subject.instance_variable_get(:@api_version)).to eq('v1')
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end
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2018-09-06 10:03:38 +00:00
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end
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describe '#extensions_client' do
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subject { client.extensions_client }
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2018-10-03 02:36:00 +00:00
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it_behaves_like 'a Kubeclient'
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2018-09-06 10:03:38 +00:00
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it 'has the extensions API group endpoint' do
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expect(subject.api_endpoint.to_s).to match(%r{\/apis\/extensions\Z})
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end
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2018-10-03 02:36:00 +00:00
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it 'has the api_version' do
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expect(subject.instance_variable_get(:@api_version)).to eq('v1beta1')
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end
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2018-09-06 10:03:38 +00:00
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end
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2019-12-24 00:07:31 +00:00
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describe '#istio_client' do
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subject { client.istio_client }
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it_behaves_like 'a Kubeclient'
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it 'has the Istio API group endpoint' do
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expect(subject.api_endpoint.to_s).to match(%r{\/apis\/networking.istio.io\Z})
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end
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it 'has the api_version' do
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expect(subject.instance_variable_get(:@api_version)).to eq('v1alpha3')
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end
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end
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2018-11-15 11:39:43 +00:00
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describe '#knative_client' do
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subject { client.knative_client }
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it_behaves_like 'a Kubeclient'
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it 'has the extensions API group endpoint' do
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expect(subject.api_endpoint.to_s).to match(%r{\/apis\/serving.knative.dev\Z})
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end
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it 'has the api_version' do
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expect(subject.instance_variable_get(:@api_version)).to eq('v1alpha1')
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end
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end
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2020-04-28 15:09:29 +00:00
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describe '#networking_client' do
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subject { client.networking_client }
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it_behaves_like 'a Kubeclient'
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it 'has the networking API group endpoint' do
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expect(subject.api_endpoint.to_s).to match(%r{\/apis\/networking.k8s.io\Z})
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end
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it 'has the api_version' do
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expect(subject.instance_variable_get(:@api_version)).to eq('v1')
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end
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end
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2020-05-14 21:07:52 +00:00
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describe '#metrics_client' do
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subject { client.metrics_client }
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it_behaves_like 'a Kubeclient'
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it 'has the metrics API group endpoint' do
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expect(subject.api_endpoint.to_s).to match(%r{\/apis\/metrics.k8s.io\Z})
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end
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it 'has the api_version' do
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expect(subject.instance_variable_get(:@api_version)).to eq('v1beta1')
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end
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end
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2018-09-06 10:03:38 +00:00
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describe 'core API' do
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let(:core_client) { client.core_client }
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[
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2020-05-14 21:07:52 +00:00
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:get_nodes,
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2018-09-06 10:03:38 +00:00
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:get_pods,
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:get_secrets,
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:get_config_map,
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:get_pod,
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:get_namespace,
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2018-09-07 11:48:06 +00:00
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:get_secret,
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2018-09-06 10:03:38 +00:00
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:get_service,
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:get_service_account,
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2019-09-24 00:06:02 +00:00
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:delete_namespace,
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2018-09-06 10:03:38 +00:00
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:delete_pod,
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2019-10-06 12:05:58 +00:00
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:delete_service_account,
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2018-09-06 10:03:38 +00:00
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:create_config_map,
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:create_namespace,
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:create_pod,
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2018-09-07 10:24:39 +00:00
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:create_secret,
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2018-09-06 10:03:38 +00:00
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:create_service_account,
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:update_config_map,
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2018-11-28 10:31:28 +00:00
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:update_secret,
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2018-09-06 10:03:38 +00:00
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:update_service_account
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].each do |method|
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describe "##{method}" do
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2019-01-09 23:26:40 +00:00
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include_examples 'redirection not allowed', method
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2019-07-19 02:12:02 +00:00
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include_examples 'dns rebinding not allowed', method
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2019-01-09 23:26:40 +00:00
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2018-09-06 10:03:38 +00:00
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it 'delegates to the core client' do
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expect(client).to delegate_method(method).to(:core_client)
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end
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it 'responds to the method' do
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expect(client).to respond_to method
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end
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end
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end
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end
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describe 'rbac API group' do
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let(:rbac_client) { client.rbac_client }
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[
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2019-07-11 11:26:15 +00:00
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:create_role,
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:get_role,
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:update_role,
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2018-09-06 10:03:38 +00:00
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:update_cluster_role_binding
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].each do |method|
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describe "##{method}" do
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2019-01-09 23:26:40 +00:00
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include_examples 'redirection not allowed', method
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2019-07-19 02:12:02 +00:00
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include_examples 'dns rebinding not allowed', method
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2019-01-09 23:26:40 +00:00
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2018-09-06 10:03:38 +00:00
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it 'delegates to the rbac client' do
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expect(client).to delegate_method(method).to(:rbac_client)
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end
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it 'responds to the method' do
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expect(client).to respond_to method
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end
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end
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end
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end
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2020-01-23 12:08:38 +00:00
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describe '#get_deployments' do
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2018-09-06 10:03:38 +00:00
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let(:extensions_client) { client.extensions_client }
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2020-01-23 12:08:38 +00:00
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let(:apps_client) { client.apps_client }
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2018-09-06 10:03:38 +00:00
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2020-01-23 12:08:38 +00:00
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include_examples 'redirection not allowed', 'get_deployments'
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include_examples 'dns rebinding not allowed', 'get_deployments'
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2019-01-09 23:26:40 +00:00
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2020-01-23 12:08:38 +00:00
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it 'delegates to the extensions client' do
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expect(extensions_client).to receive(:get_deployments)
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client.get_deployments
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end
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context 'extensions does not have deployments for Kubernetes 1.16+ clusters' do
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before do
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WebMock
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.stub_request(:get, api_url + '/apis/extensions/v1beta1')
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.to_return(kube_response(kube_1_16_extensions_v1beta1_discovery_body))
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2018-09-06 10:03:38 +00:00
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end
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2020-01-23 12:08:38 +00:00
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it 'delegates to the apps client' do
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expect(apps_client).to receive(:get_deployments)
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client.get_deployments
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2018-09-06 10:03:38 +00:00
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end
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end
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end
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2019-12-24 00:07:31 +00:00
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|
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describe 'istio API group' do
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|
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let(:istio_client) { client.istio_client }
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|
|
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|
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[
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|
:create_gateway,
|
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|
:get_gateway,
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|
:update_gateway
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|
].each do |method|
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|
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describe "##{method}" do
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|
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include_examples 'redirection not allowed', method
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|
include_examples 'dns rebinding not allowed', method
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it 'delegates to the istio client' do
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expect(client).to delegate_method(method).to(:istio_client)
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|
end
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it 'responds to the method' do
|
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|
expect(client).to respond_to method
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|
|
|
end
|
|
|
|
end
|
|
|
|
end
|
|
|
|
end
|
2020-04-28 15:09:29 +00:00
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|
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|
|
|
describe 'networking API group' do
|
|
|
|
let(:networking_client) { client.networking_client }
|
|
|
|
|
|
|
|
[
|
|
|
|
:create_network_policy,
|
|
|
|
:get_network_policies,
|
|
|
|
:update_network_policy,
|
|
|
|
:delete_network_policy
|
|
|
|
].each do |method|
|
|
|
|
describe "##{method}" do
|
|
|
|
include_examples 'redirection not allowed', method
|
|
|
|
include_examples 'dns rebinding not allowed', method
|
|
|
|
|
|
|
|
it 'delegates to the networking client' do
|
|
|
|
expect(client).to delegate_method(method).to(:networking_client)
|
|
|
|
end
|
|
|
|
|
|
|
|
it 'responds to the method' do
|
|
|
|
expect(client).to respond_to method
|
|
|
|
end
|
|
|
|
end
|
|
|
|
end
|
|
|
|
end
|
2018-09-06 10:03:38 +00:00
|
|
|
|
|
|
|
describe 'non-entity methods' do
|
|
|
|
it 'does not proxy for non-entity methods' do
|
|
|
|
expect(client).not_to respond_to :proxy_url
|
|
|
|
end
|
|
|
|
|
|
|
|
it 'throws an error' do
|
|
|
|
expect { client.proxy_url }.to raise_error(NoMethodError)
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
describe '#get_pod_log' do
|
|
|
|
let(:core_client) { client.core_client }
|
|
|
|
|
|
|
|
it 'is delegated to the core client' do
|
|
|
|
expect(client).to delegate_method(:get_pod_log).to(:core_client)
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
describe '#watch_pod_log' do
|
|
|
|
let(:core_client) { client.core_client }
|
|
|
|
|
|
|
|
it 'is delegated to the core client' do
|
|
|
|
expect(client).to delegate_method(:watch_pod_log).to(:core_client)
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
2020-05-06 12:09:36 +00:00
|
|
|
shared_examples 'create_or_update method using put' do
|
|
|
|
let(:update_method) { "update_#{resource_type}" }
|
|
|
|
|
|
|
|
it 'calls the update method' do
|
|
|
|
expect(client).to receive(update_method).with(resource)
|
|
|
|
|
|
|
|
subject
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
2018-11-28 10:31:28 +00:00
|
|
|
shared_examples 'create_or_update method' do
|
|
|
|
let(:get_method) { "get_#{resource_type}" }
|
|
|
|
let(:update_method) { "update_#{resource_type}" }
|
|
|
|
let(:create_method) { "create_#{resource_type}" }
|
|
|
|
|
|
|
|
context 'resource exists' do
|
|
|
|
before do
|
|
|
|
expect(client).to receive(get_method).and_return(resource)
|
|
|
|
end
|
|
|
|
|
|
|
|
it 'calls the update method' do
|
|
|
|
expect(client).to receive(update_method).with(resource)
|
|
|
|
|
|
|
|
subject
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
context 'resource does not exist' do
|
|
|
|
before do
|
|
|
|
expect(client).to receive(get_method).and_raise(Kubeclient::ResourceNotFoundError.new(404, 'Not found', nil))
|
|
|
|
end
|
|
|
|
|
|
|
|
it 'calls the create method' do
|
|
|
|
expect(client).to receive(create_method).with(resource)
|
|
|
|
|
|
|
|
subject
|
|
|
|
end
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
describe '#create_or_update_cluster_role_binding' do
|
|
|
|
let(:resource_type) { 'cluster_role_binding' }
|
|
|
|
|
|
|
|
let(:resource) do
|
|
|
|
::Kubeclient::Resource.new(metadata: { name: 'name', namespace: 'namespace' })
|
|
|
|
end
|
|
|
|
|
|
|
|
subject { client.create_or_update_cluster_role_binding(resource) }
|
|
|
|
|
2020-05-06 12:09:36 +00:00
|
|
|
it_behaves_like 'create_or_update method using put'
|
2018-11-28 10:31:28 +00:00
|
|
|
end
|
|
|
|
|
|
|
|
describe '#create_or_update_role_binding' do
|
|
|
|
let(:resource_type) { 'role_binding' }
|
|
|
|
|
|
|
|
let(:resource) do
|
|
|
|
::Kubeclient::Resource.new(metadata: { name: 'name', namespace: 'namespace' })
|
|
|
|
end
|
|
|
|
|
|
|
|
subject { client.create_or_update_role_binding(resource) }
|
|
|
|
|
2020-05-06 12:09:36 +00:00
|
|
|
it_behaves_like 'create_or_update method using put'
|
2018-11-28 10:31:28 +00:00
|
|
|
end
|
|
|
|
|
|
|
|
describe '#create_or_update_service_account' do
|
|
|
|
let(:resource_type) { 'service_account' }
|
|
|
|
|
|
|
|
let(:resource) do
|
|
|
|
::Kubeclient::Resource.new(metadata: { name: 'name', namespace: 'namespace' })
|
|
|
|
end
|
|
|
|
|
|
|
|
subject { client.create_or_update_service_account(resource) }
|
|
|
|
|
|
|
|
it_behaves_like 'create_or_update method'
|
|
|
|
end
|
|
|
|
|
|
|
|
describe '#create_or_update_secret' do
|
|
|
|
let(:resource_type) { 'secret' }
|
|
|
|
|
|
|
|
let(:resource) do
|
|
|
|
::Kubeclient::Resource.new(metadata: { name: 'name', namespace: 'namespace' })
|
|
|
|
end
|
|
|
|
|
|
|
|
subject { client.create_or_update_secret(resource) }
|
|
|
|
|
|
|
|
it_behaves_like 'create_or_update method'
|
|
|
|
end
|
|
|
|
|
2018-09-06 10:03:38 +00:00
|
|
|
describe 'methods that do not exist on any client' do
|
|
|
|
it 'throws an error' do
|
|
|
|
expect { client.non_existent_method }.to raise_error(NoMethodError)
|
|
|
|
end
|
|
|
|
|
|
|
|
it 'returns false for respond_to' do
|
|
|
|
expect(client.respond_to?(:non_existent_method)).to be_falsey
|
|
|
|
end
|
|
|
|
end
|
|
|
|
end
|