kube-arangodb/pkg/deployment/deployment_pod_probe_test.go

//
// DISCLAIMER
//
// Copyright 2020 ArangoDB GmbH, Cologne, Germany
//
// 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.
//
// Copyright holder is ArangoDB GmbH, Cologne, Germany
//
// Author Adam Janikowski
//

package deployment

import (
	"testing"

	api "github.com/arangodb/kube-arangodb/pkg/apis/deployment/v1"
	"github.com/arangodb/kube-arangodb/pkg/util"
	"github.com/arangodb/kube-arangodb/pkg/util/k8sutil"
	core "k8s.io/api/core/v1"
)

func TestEnsurePod_ArangoDB_Probe(t *testing.T) {
	testCases := []testCaseStruct{
		{
			Name: "Agent Pod default probes",
			ArangoDeployment: &api.ArangoDeployment{
				Spec: api.DeploymentSpec{
					Image:          util.NewString(testImage),
					Authentication: noAuthentication,
					TLS:            noTLS,
				},
			},
			Helper: func(t *testing.T, deployment *Deployment, testCase *testCaseStruct) {
				deployment.status.last = api.DeploymentStatus{
					Members: api.DeploymentStatusMembers{
						Agents: api.MemberStatusList{
							firstAgentStatus,
						},
					},
					Images: createTestImages(false),
				}
				testCase.createTestPodData(deployment, api.ServerGroupAgents, firstAgentStatus)
			},
			ExpectedEvent: "member agent is created",
			ExpectedPod: core.Pod{
				Spec: core.PodSpec{
					Volumes: []core.Volume{
						k8sutil.CreateVolumeEmptyDir(k8sutil.ArangodVolumeName),
					},
					Containers: []core.Container{
						{
							Name:    k8sutil.ServerContainerName,
							Image:   testImage,
							Command: createTestCommandForAgent(firstAgentStatus.ID, false, false, false),
							Ports:   createTestPorts(),
							VolumeMounts: []core.VolumeMount{
								k8sutil.ArangodVolumeMount(),
							},
							Resources:       emptyResources,
							LivenessProbe:   createTestLivenessProbe(httpProbe, false, "", k8sutil.ArangoPort),
							ImagePullPolicy: core.PullIfNotPresent,
							SecurityContext: securityContext.NewSecurityContext(),
						},
					},
					RestartPolicy:                 core.RestartPolicyNever,
					TerminationGracePeriodSeconds: &defaultAgentTerminationTimeout,
					Hostname:                      testDeploymentName + "-" + api.ServerGroupAgentsString + "-" + firstAgentStatus.ID,
					Subdomain:                     testDeploymentName + "-int",
					Affinity: k8sutil.CreateAffinity(testDeploymentName, api.ServerGroupAgentsString,
						false, ""),
				},
			},
		},
		{
			Name: "Agent Pod customized probes",
			ArangoDeployment: &api.ArangoDeployment{
				Spec: api.DeploymentSpec{
					Image:          util.NewString(testImage),
					Authentication: noAuthentication,
					TLS:            noTLS,
					Agents: api.ServerGroupSpec{
						Probes: &api.ServerGroupProbesSpec{
							LivenessProbeSpec: &api.ServerGroupProbeSpec{
								TimeoutSeconds: util.NewInt32(50),
							},
						},
					},
				},
			},
			Helper: func(t *testing.T, deployment *Deployment, testCase *testCaseStruct) {
				deployment.status.last = api.DeploymentStatus{
					Members: api.DeploymentStatusMembers{
						Agents: api.MemberStatusList{
							firstAgentStatus,
						},
					},
					Images: createTestImages(false),
				}
				testCase.createTestPodData(deployment, api.ServerGroupAgents, firstAgentStatus)
			},
			ExpectedEvent: "member agent is created",
			ExpectedPod: core.Pod{
				Spec: core.PodSpec{
					Volumes: []core.Volume{
						k8sutil.CreateVolumeEmptyDir(k8sutil.ArangodVolumeName),
					},
					Containers: []core.Container{
						{
							Name:    k8sutil.ServerContainerName,
							Image:   testImage,
							Command: createTestCommandForAgent(firstAgentStatus.ID, false, false, false),
							Ports:   createTestPorts(),
							VolumeMounts: []core.VolumeMount{
								k8sutil.ArangodVolumeMount(),
							},
							Resources: emptyResources,
							LivenessProbe: modTestLivenessProbe(httpProbe, false, "", k8sutil.ArangoPort, func(probe *core.Probe) {
								probe.TimeoutSeconds = 50
							}),
							ImagePullPolicy: core.PullIfNotPresent,
							SecurityContext: securityContext.NewSecurityContext(),
						},
					},
					RestartPolicy:                 core.RestartPolicyNever,
					TerminationGracePeriodSeconds: &defaultAgentTerminationTimeout,
					Hostname:                      testDeploymentName + "-" + api.ServerGroupAgentsString + "-" + firstAgentStatus.ID,
					Subdomain:                     testDeploymentName + "-int",
					Affinity: k8sutil.CreateAffinity(testDeploymentName, api.ServerGroupAgentsString,
						false, ""),
				},
			},
		},
		{
			Name: "Agent Pod enabled probes",
			ArangoDeployment: &api.ArangoDeployment{
				Spec: api.DeploymentSpec{
					Image:          util.NewString(testImage),
					Authentication: noAuthentication,
					TLS:            noTLS,
					Agents: api.ServerGroupSpec{
						Probes: &api.ServerGroupProbesSpec{
							LivenessProbeDisabled:  util.NewBool(false),
							ReadinessProbeDisabled: util.NewBool(false),
						},
					},
				},
			},
			Helper: func(t *testing.T, deployment *Deployment, testCase *testCaseStruct) {
				deployment.status.last = api.DeploymentStatus{
					Members: api.DeploymentStatusMembers{
						Agents: api.MemberStatusList{
							firstAgentStatus,
						},
					},
					Images: createTestImages(false),
				}
				testCase.createTestPodData(deployment, api.ServerGroupAgents, firstAgentStatus)
			},
			ExpectedEvent: "member agent is created",
			ExpectedPod: core.Pod{
				Spec: core.PodSpec{
					Volumes: []core.Volume{
						k8sutil.CreateVolumeEmptyDir(k8sutil.ArangodVolumeName),
					},
					Containers: []core.Container{
						{
							Name:    k8sutil.ServerContainerName,
							Image:   testImage,
							Command: createTestCommandForAgent(firstAgentStatus.ID, false, false, false),
							Ports:   createTestPorts(),
							VolumeMounts: []core.VolumeMount{
								k8sutil.ArangodVolumeMount(),
							},
							Resources:       emptyResources,
							LivenessProbe:   createTestLivenessProbe(httpProbe, false, "", k8sutil.ArangoPort),
							ReadinessProbe:  createTestReadinessSimpleProbe(httpProbe, false, ""),
							ImagePullPolicy: core.PullIfNotPresent,
							SecurityContext: securityContext.NewSecurityContext(),
						},
					},
					RestartPolicy:                 core.RestartPolicyNever,
					TerminationGracePeriodSeconds: &defaultAgentTerminationTimeout,
					Hostname:                      testDeploymentName + "-" + api.ServerGroupAgentsString + "-" + firstAgentStatus.ID,
					Subdomain:                     testDeploymentName + "-int",
					Affinity: k8sutil.CreateAffinity(testDeploymentName, api.ServerGroupAgentsString,
						false, ""),
				},
			},
		},
		{
			Name: "DBServer Pod default probes",
			ArangoDeployment: &api.ArangoDeployment{
				Spec: api.DeploymentSpec{
					Image:          util.NewString(testImage),
					Authentication: noAuthentication,
					TLS:            noTLS,
				},
			},
			Helper: func(t *testing.T, deployment *Deployment, testCase *testCaseStruct) {
				deployment.status.last = api.DeploymentStatus{
					Members: api.DeploymentStatusMembers{
						DBServers: api.MemberStatusList{
							firstDBServerStatus,
						},
					},
					Images: createTestImages(false),
				}
				testCase.createTestPodData(deployment, api.ServerGroupDBServers, firstDBServerStatus)
			},
			ExpectedEvent: "member dbserver is created",
			ExpectedPod: core.Pod{
				Spec: core.PodSpec{
					Volumes: []core.Volume{
						k8sutil.CreateVolumeEmptyDir(k8sutil.ArangodVolumeName),
					},
					Containers: []core.Container{
						{
							Name:    k8sutil.ServerContainerName,
							Image:   testImage,
							Command: createTestCommandForDBServer(firstDBServerStatus.ID, false, false, false),
							Ports:   createTestPorts(),
							VolumeMounts: []core.VolumeMount{
								k8sutil.ArangodVolumeMount(),
							},
							Resources:       emptyResources,
							LivenessProbe:   createTestLivenessProbe(httpProbe, false, "", k8sutil.ArangoPort),
							ImagePullPolicy: core.PullIfNotPresent,
							SecurityContext: securityContext.NewSecurityContext(),
						},
					},
					RestartPolicy:                 core.RestartPolicyNever,
					TerminationGracePeriodSeconds: &defaultDBServerTerminationTimeout,
					Hostname:                      testDeploymentName + "-" + api.ServerGroupDBServersString + "-" + firstDBServerStatus.ID,
					Subdomain:                     testDeploymentName + "-int",
					Affinity: k8sutil.CreateAffinity(testDeploymentName, api.ServerGroupDBServersString,
						false, ""),
				},
			},
		},
		{
			Name: "DBServer Pod enabled probes",
			ArangoDeployment: &api.ArangoDeployment{
				Spec: api.DeploymentSpec{
					Image:          util.NewString(testImage),
					Authentication: noAuthentication,
					TLS:            noTLS,
					DBServers: api.ServerGroupSpec{
						Probes: &api.ServerGroupProbesSpec{
							LivenessProbeDisabled:  util.NewBool(false),
							ReadinessProbeDisabled: util.NewBool(false),
						},
					},
				},
			},
			Helper: func(t *testing.T, deployment *Deployment, testCase *testCaseStruct) {
				deployment.status.last = api.DeploymentStatus{
					Members: api.DeploymentStatusMembers{
						DBServers: api.MemberStatusList{
							firstDBServerStatus,
						},
					},
					Images: createTestImages(false),
				}
				testCase.createTestPodData(deployment, api.ServerGroupDBServers, firstDBServerStatus)
			},
			ExpectedEvent: "member dbserver is created",
			ExpectedPod: core.Pod{
				Spec: core.PodSpec{
					Volumes: []core.Volume{
						k8sutil.CreateVolumeEmptyDir(k8sutil.ArangodVolumeName),
					},
					Containers: []core.Container{
						{
							Name:    k8sutil.ServerContainerName,
							Image:   testImage,
							Command: createTestCommandForDBServer(firstDBServerStatus.ID, false, false, false),
							Ports:   createTestPorts(),
							VolumeMounts: []core.VolumeMount{
								k8sutil.ArangodVolumeMount(),
							},
							Resources:       emptyResources,
							LivenessProbe:   createTestLivenessProbe(httpProbe, false, "", k8sutil.ArangoPort),
							ReadinessProbe:  createTestReadinessSimpleProbe(httpProbe, false, ""),
							ImagePullPolicy: core.PullIfNotPresent,
							SecurityContext: securityContext.NewSecurityContext(),
						},
					},
					RestartPolicy:                 core.RestartPolicyNever,
					TerminationGracePeriodSeconds: &defaultDBServerTerminationTimeout,
					Hostname:                      testDeploymentName + "-" + api.ServerGroupDBServersString + "-" + firstDBServerStatus.ID,
					Subdomain:                     testDeploymentName + "-int",
					Affinity: k8sutil.CreateAffinity(testDeploymentName, api.ServerGroupDBServersString,
						false, ""),
				},
			},
		},
		{
			Name: "Coordinator Pod default probes",
			ArangoDeployment: &api.ArangoDeployment{
				Spec: api.DeploymentSpec{
					Image:          util.NewString(testImage),
					Authentication: noAuthentication,
					TLS:            noTLS,
				},
			},
			Helper: func(t *testing.T, deployment *Deployment, testCase *testCaseStruct) {
				deployment.status.last = api.DeploymentStatus{
					Members: api.DeploymentStatusMembers{
						Coordinators: api.MemberStatusList{
							firstCoordinatorStatus,
						},
					},
					Images: createTestImages(false),
				}
				testCase.createTestPodData(deployment, api.ServerGroupCoordinators, firstCoordinatorStatus)
			},
			ExpectedEvent: "member coordinator is created",
			ExpectedPod: core.Pod{
				Spec: core.PodSpec{
					Volumes: []core.Volume{
						k8sutil.CreateVolumeEmptyDir(k8sutil.ArangodVolumeName),
					},
					Containers: []core.Container{
						{
							Name:    k8sutil.ServerContainerName,
							Image:   testImage,
							Command: createTestCommandForCoordinator(firstCoordinatorStatus.ID, false, false),
							Ports:   createTestPorts(),
							VolumeMounts: []core.VolumeMount{
								k8sutil.ArangodVolumeMount(),
							},
							Resources:       emptyResources,
							ReadinessProbe:  createTestReadinessProbe(httpProbe, false, ""),
							ImagePullPolicy: core.PullIfNotPresent,
							SecurityContext: securityContext.NewSecurityContext(),
						},
					},
					RestartPolicy:                 core.RestartPolicyNever,
					TerminationGracePeriodSeconds: &defaultCoordinatorTerminationTimeout,
					Hostname:                      testDeploymentName + "-" + api.ServerGroupCoordinatorsString + "-" + firstCoordinatorStatus.ID,
					Subdomain:                     testDeploymentName + "-int",
					Affinity: k8sutil.CreateAffinity(testDeploymentName, api.ServerGroupCoordinatorsString,
						false, ""),
				},
			},
		},
		{
			Name: "Coordinator Pod enabled probes",
			ArangoDeployment: &api.ArangoDeployment{
				Spec: api.DeploymentSpec{
					Image:          util.NewString(testImage),
					Authentication: noAuthentication,
					TLS:            noTLS,
					Coordinators: api.ServerGroupSpec{
						Probes: &api.ServerGroupProbesSpec{
							LivenessProbeDisabled:  util.NewBool(false),
							ReadinessProbeDisabled: util.NewBool(false),
						},
					},
				},
			},
			Helper: func(t *testing.T, deployment *Deployment, testCase *testCaseStruct) {
				deployment.status.last = api.DeploymentStatus{
					Members: api.DeploymentStatusMembers{
						Coordinators: api.MemberStatusList{
							firstCoordinatorStatus,
						},
					},
					Images: createTestImages(false),
				}
				testCase.createTestPodData(deployment, api.ServerGroupCoordinators, firstCoordinatorStatus)
			},
			ExpectedEvent: "member coordinator is created",
			ExpectedPod: core.Pod{
				Spec: core.PodSpec{
					Volumes: []core.Volume{
						k8sutil.CreateVolumeEmptyDir(k8sutil.ArangodVolumeName),
					},
					Containers: []core.Container{
						{
							Name:    k8sutil.ServerContainerName,
							Image:   testImage,
							Command: createTestCommandForCoordinator(firstCoordinatorStatus.ID, false, false),
							Ports:   createTestPorts(),
							VolumeMounts: []core.VolumeMount{
								k8sutil.ArangodVolumeMount(),
							},
							Resources:       emptyResources,
							LivenessProbe:   createTestLivenessProbe(httpProbe, false, "", k8sutil.ArangoPort),
							ReadinessProbe:  createTestReadinessProbe(httpProbe, false, ""),
							ImagePullPolicy: core.PullIfNotPresent,
							SecurityContext: securityContext.NewSecurityContext(),
						},
					},
					RestartPolicy:                 core.RestartPolicyNever,
					TerminationGracePeriodSeconds: &defaultCoordinatorTerminationTimeout,
					Hostname:                      testDeploymentName + "-" + api.ServerGroupCoordinatorsString + "-" + firstCoordinatorStatus.ID,
					Subdomain:                     testDeploymentName + "-int",
					Affinity: k8sutil.CreateAffinity(testDeploymentName, api.ServerGroupCoordinatorsString,
						false, ""),
				},
			},
		},
	}

	runTestCases(t, testCases...)
}