kubernetes gce_loadbalancer_test 源码

kubernetes gce_loadbalancer_test 代码

文件路径：/staging/src/k8s.io/legacy-cloud-providers/gce/gce_loadbalancer_test.go

//go:build !providerless
// +build !providerless

/*
Copyright 2017 The Kubernetes Authors.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package gce

import (
	"context"
	"testing"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)

func TestGetLoadBalancer(t *testing.T) {
	t.Parallel()

	vals := DefaultTestClusterValues()
	gce, err := fakeGCECloud(vals)
	require.NoError(t, err)

	apiService := fakeLoadbalancerService("")

	// When a loadbalancer has not been created
	status, found, err := gce.GetLoadBalancer(context.Background(), vals.ClusterName, apiService)
	assert.Nil(t, status)
	assert.False(t, found)
	assert.NoError(t, err)

	nodeNames := []string{"test-node-1"}
	nodes, err := createAndInsertNodes(gce, nodeNames, vals.ZoneName)
	require.NoError(t, err)
	expectedStatus, err := gce.EnsureLoadBalancer(context.Background(), vals.ClusterName, apiService, nodes)
	require.NoError(t, err)

	status, found, err = gce.GetLoadBalancer(context.Background(), vals.ClusterName, apiService)
	assert.Equal(t, expectedStatus, status)
	assert.True(t, found)
	assert.NoError(t, err)
}

func TestEnsureLoadBalancerCreatesExternalLb(t *testing.T) {
	t.Parallel()

	vals := DefaultTestClusterValues()
	gce, err := fakeGCECloud(vals)
	require.NoError(t, err)

	nodeNames := []string{"test-node-1"}
	nodes, err := createAndInsertNodes(gce, nodeNames, vals.ZoneName)
	require.NoError(t, err)

	apiService := fakeLoadbalancerService("")
	status, err := gce.EnsureLoadBalancer(context.Background(), vals.ClusterName, apiService, nodes)
	assert.NoError(t, err)
	assert.NotEmpty(t, status.Ingress)
	assertExternalLbResources(t, gce, apiService, vals, nodeNames)
}

func TestEnsureLoadBalancerCreatesInternalLb(t *testing.T) {
	t.Parallel()

	vals := DefaultTestClusterValues()
	gce, err := fakeGCECloud(vals)
	require.NoError(t, err)

	nodeNames := []string{"test-node-1"}
	nodes, err := createAndInsertNodes(gce, nodeNames, vals.ZoneName)
	require.NoError(t, err)

	apiService := fakeLoadbalancerService(string(LBTypeInternal))
	apiService, err = gce.client.CoreV1().Services(apiService.Namespace).Create(context.TODO(), apiService, metav1.CreateOptions{})
	require.NoError(t, err)
	status, err := gce.EnsureLoadBalancer(context.Background(), vals.ClusterName, apiService, nodes)
	assert.NoError(t, err)
	assert.NotEmpty(t, status.Ingress)
	assertInternalLbResources(t, gce, apiService, vals, nodeNames)
}

func TestEnsureLoadBalancerDeletesExistingInternalLb(t *testing.T) {
	t.Parallel()

	vals := DefaultTestClusterValues()
	gce, err := fakeGCECloud(vals)
	require.NoError(t, err)

	nodeNames := []string{"test-node-1"}
	nodes, err := createAndInsertNodes(gce, nodeNames, vals.ZoneName)
	require.NoError(t, err)

	apiService := fakeLoadbalancerService("")
	createInternalLoadBalancer(gce, apiService, nil, nodeNames, vals.ClusterName, vals.ClusterID, vals.ZoneName)

	status, err := gce.EnsureLoadBalancer(context.Background(), vals.ClusterName, apiService, nodes)
	assert.NoError(t, err)
	assert.NotEmpty(t, status.Ingress)

	assertExternalLbResources(t, gce, apiService, vals, nodeNames)
	assertInternalLbResourcesDeleted(t, gce, apiService, vals, false)
}

func TestEnsureLoadBalancerDeletesExistingExternalLb(t *testing.T) {
	t.Parallel()

	vals := DefaultTestClusterValues()
	gce, err := fakeGCECloud(vals)
	require.NoError(t, err)

	nodeNames := []string{"test-node-1"}
	nodes, err := createAndInsertNodes(gce, nodeNames, vals.ZoneName)
	require.NoError(t, err)

	apiService := fakeLoadbalancerService("")
	createExternalLoadBalancer(gce, apiService, nodeNames, vals.ClusterName, vals.ClusterID, vals.ZoneName)

	apiService = fakeLoadbalancerService(string(LBTypeInternal))
	apiService, err = gce.client.CoreV1().Services(apiService.Namespace).Create(context.TODO(), apiService, metav1.CreateOptions{})
	require.NoError(t, err)
	status, err := gce.EnsureLoadBalancer(context.Background(), vals.ClusterName, apiService, nodes)
	assert.NoError(t, err)
	assert.NotEmpty(t, status.Ingress)

	assertInternalLbResources(t, gce, apiService, vals, nodeNames)
	assertExternalLbResourcesDeleted(t, gce, apiService, vals, false)
}

func TestEnsureLoadBalancerDeletedDeletesExternalLb(t *testing.T) {
	t.Parallel()

	vals := DefaultTestClusterValues()
	gce, err := fakeGCECloud(vals)
	require.NoError(t, err)

	nodeNames := []string{"test-node-1"}
	_, err = createAndInsertNodes(gce, nodeNames, vals.ZoneName)
	require.NoError(t, err)

	apiService := fakeLoadbalancerService("")
	createExternalLoadBalancer(gce, apiService, nodeNames, vals.ClusterName, vals.ClusterID, vals.ZoneName)

	err = gce.EnsureLoadBalancerDeleted(context.Background(), vals.ClusterName, apiService)
	assert.NoError(t, err)
	assertExternalLbResourcesDeleted(t, gce, apiService, vals, true)
}

func TestEnsureLoadBalancerDeletedDeletesInternalLb(t *testing.T) {
	t.Parallel()

	vals := DefaultTestClusterValues()
	gce, err := fakeGCECloud(vals)
	require.NoError(t, err)

	nodeNames := []string{"test-node-1"}
	_, err = createAndInsertNodes(gce, nodeNames, vals.ZoneName)
	require.NoError(t, err)

	apiService := fakeLoadbalancerService(string(LBTypeInternal))
	apiService, err = gce.client.CoreV1().Services(apiService.Namespace).Create(context.TODO(), apiService, metav1.CreateOptions{})
	require.NoError(t, err)
	createInternalLoadBalancer(gce, apiService, nil, nodeNames, vals.ClusterName, vals.ClusterID, vals.ZoneName)

	err = gce.EnsureLoadBalancerDeleted(context.Background(), vals.ClusterName, apiService)
	assert.NoError(t, err)
	assertInternalLbResourcesDeleted(t, gce, apiService, vals, true)
}

func TestProjectsBasePath(t *testing.T) {
	t.Parallel()
	vals := DefaultTestClusterValues()
	gce, err := fakeGCECloud(vals)
	// Loadbalancer controller code expects basepath to contain the projects string.
	expectProjectsBasePath := "https://compute.googleapis.com/compute/v1/projects/"
	// See https://github.com/kubernetes/kubernetes/issues/102757, the endpoint can have mtls in some cases.
	expectMtlsProjectsBasePath := "https://compute.mtls.googleapis.com/compute/v1/projects/"
	require.NoError(t, err)
	if gce.projectsBasePath != expectProjectsBasePath && gce.projectsBasePath != expectMtlsProjectsBasePath {
		t.Errorf("Compute projectsBasePath has changed. Got %q, want %q or %q", gce.projectsBasePath, expectProjectsBasePath, expectMtlsProjectsBasePath)
	}
}

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