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k8sres_test.go
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package cluster
import (
"context"
"errors"
"fmt"
"reflect"
"sort"
"testing"
"github.com/stretchr/testify/assert"
acidv1 "github.com/zalando/postgres-operator/pkg/apis/acid.zalan.do/v1"
"github.com/zalando/postgres-operator/pkg/spec"
"github.com/zalando/postgres-operator/pkg/util"
"github.com/zalando/postgres-operator/pkg/util/config"
"github.com/zalando/postgres-operator/pkg/util/constants"
"github.com/zalando/postgres-operator/pkg/util/k8sutil"
appsv1 "k8s.io/api/apps/v1"
v1 "k8s.io/api/core/v1"
policyv1beta1 "k8s.io/api/policy/v1beta1"
"k8s.io/apimachinery/pkg/api/resource"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
"k8s.io/apimachinery/pkg/util/intstr"
v1core "k8s.io/client-go/kubernetes/typed/core/v1"
)
// For testing purposes
type ExpectedValue struct {
envIndex int
envVarConstant string
envVarValue string
}
func toIntStr(val int) *intstr.IntOrString {
b := intstr.FromInt(val)
return &b
}
func TestGenerateSpiloJSONConfiguration(t *testing.T) {
var cluster = New(
Config{
OpConfig: config.Config{
ProtectedRoles: []string{"admin"},
Auth: config.Auth{
SuperUsername: superUserName,
ReplicationUsername: replicationUserName,
},
},
}, k8sutil.KubernetesClient{}, acidv1.Postgresql{}, logger, eventRecorder)
testName := "TestGenerateSpiloConfig"
tests := []struct {
subtest string
pgParam *acidv1.PostgresqlParam
patroni *acidv1.Patroni
role string
opConfig config.Config
result string
}{
{
subtest: "Patroni default configuration",
pgParam: &acidv1.PostgresqlParam{PgVersion: "9.6"},
patroni: &acidv1.Patroni{},
role: "zalandos",
opConfig: config.Config{},
result: `{"postgresql":{"bin_dir":"/usr/lib/postgresql/9.6/bin"},"bootstrap":{"initdb":[{"auth-host":"md5"},{"auth-local":"trust"}],"users":{"zalandos":{"password":"","options":["CREATEDB","NOLOGIN"]}},"dcs":{}}}`,
},
{
subtest: "Patroni configured",
pgParam: &acidv1.PostgresqlParam{PgVersion: "11"},
patroni: &acidv1.Patroni{
InitDB: map[string]string{
"encoding": "UTF8",
"locale": "en_US.UTF-8",
"data-checksums": "true",
},
PgHba: []string{"hostssl all all 0.0.0.0/0 md5", "host all all 0.0.0.0/0 md5"},
TTL: 30,
LoopWait: 10,
RetryTimeout: 10,
MaximumLagOnFailover: 33554432,
SynchronousMode: true,
SynchronousModeStrict: true,
Slots: map[string]map[string]string{"permanent_logical_1": {"type": "logical", "database": "foo", "plugin": "pgoutput"}},
},
role: "zalandos",
opConfig: config.Config{},
result: `{"postgresql":{"bin_dir":"/usr/lib/postgresql/11/bin","pg_hba":["hostssl all all 0.0.0.0/0 md5","host all all 0.0.0.0/0 md5"]},"bootstrap":{"initdb":[{"auth-host":"md5"},{"auth-local":"trust"},"data-checksums",{"encoding":"UTF8"},{"locale":"en_US.UTF-8"}],"users":{"zalandos":{"password":"","options":["CREATEDB","NOLOGIN"]}},"dcs":{"ttl":30,"loop_wait":10,"retry_timeout":10,"maximum_lag_on_failover":33554432,"synchronous_mode":true,"synchronous_mode_strict":true,"slots":{"permanent_logical_1":{"database":"foo","plugin":"pgoutput","type":"logical"}}}}}`,
},
}
for _, tt := range tests {
cluster.OpConfig = tt.opConfig
result, err := generateSpiloJSONConfiguration(tt.pgParam, tt.patroni, tt.role, logger)
if err != nil {
t.Errorf("Unexpected error: %v", err)
}
if tt.result != result {
t.Errorf("%s %s: Spilo Config is %v, expected %v for role %#v and param %#v",
testName, tt.subtest, result, tt.result, tt.role, tt.pgParam)
}
}
}
func TestGenerateSpiloPodEnvVars(t *testing.T) {
var cluster = New(
Config{
OpConfig: config.Config{
WALGSBucket: "wale-gs-bucket",
ProtectedRoles: []string{"admin"},
Auth: config.Auth{
SuperUsername: superUserName,
ReplicationUsername: replicationUserName,
},
},
}, k8sutil.KubernetesClient{}, acidv1.Postgresql{}, logger, eventRecorder)
expectedValuesGSBucket := []ExpectedValue{
ExpectedValue{
envIndex: 15,
envVarConstant: "WAL_GS_BUCKET",
envVarValue: "wale-gs-bucket",
},
ExpectedValue{
envIndex: 16,
envVarConstant: "WAL_BUCKET_SCOPE_SUFFIX",
envVarValue: "/SomeUUID",
},
ExpectedValue{
envIndex: 17,
envVarConstant: "WAL_BUCKET_SCOPE_PREFIX",
envVarValue: "",
},
}
expectedValuesGCPCreds := []ExpectedValue{
ExpectedValue{
envIndex: 15,
envVarConstant: "WAL_GS_BUCKET",
envVarValue: "wale-gs-bucket",
},
ExpectedValue{
envIndex: 16,
envVarConstant: "WAL_BUCKET_SCOPE_SUFFIX",
envVarValue: "/SomeUUID",
},
ExpectedValue{
envIndex: 17,
envVarConstant: "WAL_BUCKET_SCOPE_PREFIX",
envVarValue: "",
},
ExpectedValue{
envIndex: 18,
envVarConstant: "GOOGLE_APPLICATION_CREDENTIALS",
envVarValue: "some_path_to_credentials",
},
}
testName := "TestGenerateSpiloPodEnvVars"
tests := []struct {
subTest string
opConfig config.Config
uid types.UID
spiloConfig string
cloneDescription *acidv1.CloneDescription
standbyDescription *acidv1.StandbyDescription
customEnvList []v1.EnvVar
expectedValues []ExpectedValue
}{
{
subTest: "Will set WAL_GS_BUCKET env",
opConfig: config.Config{
WALGSBucket: "wale-gs-bucket",
},
uid: "SomeUUID",
spiloConfig: "someConfig",
cloneDescription: &acidv1.CloneDescription{},
standbyDescription: &acidv1.StandbyDescription{},
customEnvList: []v1.EnvVar{},
expectedValues: expectedValuesGSBucket,
},
{
subTest: "Will set GOOGLE_APPLICATION_CREDENTIALS env",
opConfig: config.Config{
WALGSBucket: "wale-gs-bucket",
GCPCredentials: "some_path_to_credentials",
},
uid: "SomeUUID",
spiloConfig: "someConfig",
cloneDescription: &acidv1.CloneDescription{},
standbyDescription: &acidv1.StandbyDescription{},
customEnvList: []v1.EnvVar{},
expectedValues: expectedValuesGCPCreds,
},
}
for _, tt := range tests {
cluster.OpConfig = tt.opConfig
actualEnvs := cluster.generateSpiloPodEnvVars(tt.uid, tt.spiloConfig, tt.cloneDescription, tt.standbyDescription, tt.customEnvList)
for _, ev := range tt.expectedValues {
env := actualEnvs[ev.envIndex]
if env.Name != ev.envVarConstant {
t.Errorf("%s %s: Expected env name %s, have %s instead",
testName, tt.subTest, ev.envVarConstant, env.Name)
}
if env.Value != ev.envVarValue {
t.Errorf("%s %s: Expected env value %s, have %s instead",
testName, tt.subTest, ev.envVarValue, env.Value)
}
}
}
}
func TestCreateLoadBalancerLogic(t *testing.T) {
var cluster = New(
Config{
OpConfig: config.Config{
ProtectedRoles: []string{"admin"},
Auth: config.Auth{
SuperUsername: superUserName,
ReplicationUsername: replicationUserName,
},
},
}, k8sutil.KubernetesClient{}, acidv1.Postgresql{}, logger, eventRecorder)
testName := "TestCreateLoadBalancerLogic"
tests := []struct {
subtest string
role PostgresRole
spec *acidv1.PostgresSpec
opConfig config.Config
result bool
}{
{
subtest: "new format, load balancer is enabled for replica",
role: Replica,
spec: &acidv1.PostgresSpec{EnableReplicaLoadBalancer: util.True()},
opConfig: config.Config{},
result: true,
},
{
subtest: "new format, load balancer is disabled for replica",
role: Replica,
spec: &acidv1.PostgresSpec{EnableReplicaLoadBalancer: util.False()},
opConfig: config.Config{},
result: false,
},
{
subtest: "new format, load balancer isn't specified for replica",
role: Replica,
spec: &acidv1.PostgresSpec{EnableReplicaLoadBalancer: nil},
opConfig: config.Config{EnableReplicaLoadBalancer: true},
result: true,
},
{
subtest: "new format, load balancer isn't specified for replica",
role: Replica,
spec: &acidv1.PostgresSpec{EnableReplicaLoadBalancer: nil},
opConfig: config.Config{EnableReplicaLoadBalancer: false},
result: false,
},
}
for _, tt := range tests {
cluster.OpConfig = tt.opConfig
result := cluster.shouldCreateLoadBalancerForService(tt.role, tt.spec)
if tt.result != result {
t.Errorf("%s %s: Load balancer is %t, expect %t for role %#v and spec %#v",
testName, tt.subtest, result, tt.result, tt.role, tt.spec)
}
}
}
func TestGeneratePodDisruptionBudget(t *testing.T) {
tests := []struct {
c *Cluster
out policyv1beta1.PodDisruptionBudget
}{
// With multiple instances.
{
New(
Config{OpConfig: config.Config{Resources: config.Resources{ClusterNameLabel: "cluster-name", PodRoleLabel: "spilo-role"}, PDBNameFormat: "postgres-{cluster}-pdb"}},
k8sutil.KubernetesClient{},
acidv1.Postgresql{
ObjectMeta: metav1.ObjectMeta{Name: "myapp-database", Namespace: "myapp"},
Spec: acidv1.PostgresSpec{TeamID: "myapp", NumberOfInstances: 3}},
logger,
eventRecorder),
policyv1beta1.PodDisruptionBudget{
ObjectMeta: metav1.ObjectMeta{
Name: "postgres-myapp-database-pdb",
Namespace: "myapp",
Labels: map[string]string{"team": "myapp", "cluster-name": "myapp-database"},
},
Spec: policyv1beta1.PodDisruptionBudgetSpec{
MinAvailable: toIntStr(1),
Selector: &metav1.LabelSelector{
MatchLabels: map[string]string{"spilo-role": "master", "cluster-name": "myapp-database"},
},
},
},
},
// With zero instances.
{
New(
Config{OpConfig: config.Config{Resources: config.Resources{ClusterNameLabel: "cluster-name", PodRoleLabel: "spilo-role"}, PDBNameFormat: "postgres-{cluster}-pdb"}},
k8sutil.KubernetesClient{},
acidv1.Postgresql{
ObjectMeta: metav1.ObjectMeta{Name: "myapp-database", Namespace: "myapp"},
Spec: acidv1.PostgresSpec{TeamID: "myapp", NumberOfInstances: 0}},
logger,
eventRecorder),
policyv1beta1.PodDisruptionBudget{
ObjectMeta: metav1.ObjectMeta{
Name: "postgres-myapp-database-pdb",
Namespace: "myapp",
Labels: map[string]string{"team": "myapp", "cluster-name": "myapp-database"},
},
Spec: policyv1beta1.PodDisruptionBudgetSpec{
MinAvailable: toIntStr(0),
Selector: &metav1.LabelSelector{
MatchLabels: map[string]string{"spilo-role": "master", "cluster-name": "myapp-database"},
},
},
},
},
// With PodDisruptionBudget disabled.
{
New(
Config{OpConfig: config.Config{Resources: config.Resources{ClusterNameLabel: "cluster-name", PodRoleLabel: "spilo-role"}, PDBNameFormat: "postgres-{cluster}-pdb", EnablePodDisruptionBudget: util.False()}},
k8sutil.KubernetesClient{},
acidv1.Postgresql{
ObjectMeta: metav1.ObjectMeta{Name: "myapp-database", Namespace: "myapp"},
Spec: acidv1.PostgresSpec{TeamID: "myapp", NumberOfInstances: 3}},
logger,
eventRecorder),
policyv1beta1.PodDisruptionBudget{
ObjectMeta: metav1.ObjectMeta{
Name: "postgres-myapp-database-pdb",
Namespace: "myapp",
Labels: map[string]string{"team": "myapp", "cluster-name": "myapp-database"},
},
Spec: policyv1beta1.PodDisruptionBudgetSpec{
MinAvailable: toIntStr(0),
Selector: &metav1.LabelSelector{
MatchLabels: map[string]string{"spilo-role": "master", "cluster-name": "myapp-database"},
},
},
},
},
// With non-default PDBNameFormat and PodDisruptionBudget explicitly enabled.
{
New(
Config{OpConfig: config.Config{Resources: config.Resources{ClusterNameLabel: "cluster-name", PodRoleLabel: "spilo-role"}, PDBNameFormat: "postgres-{cluster}-databass-budget", EnablePodDisruptionBudget: util.True()}},
k8sutil.KubernetesClient{},
acidv1.Postgresql{
ObjectMeta: metav1.ObjectMeta{Name: "myapp-database", Namespace: "myapp"},
Spec: acidv1.PostgresSpec{TeamID: "myapp", NumberOfInstances: 3}},
logger,
eventRecorder),
policyv1beta1.PodDisruptionBudget{
ObjectMeta: metav1.ObjectMeta{
Name: "postgres-myapp-database-databass-budget",
Namespace: "myapp",
Labels: map[string]string{"team": "myapp", "cluster-name": "myapp-database"},
},
Spec: policyv1beta1.PodDisruptionBudgetSpec{
MinAvailable: toIntStr(1),
Selector: &metav1.LabelSelector{
MatchLabels: map[string]string{"spilo-role": "master", "cluster-name": "myapp-database"},
},
},
},
},
}
for _, tt := range tests {
result := tt.c.generatePodDisruptionBudget()
if !reflect.DeepEqual(*result, tt.out) {
t.Errorf("Expected PodDisruptionBudget: %#v, got %#v", tt.out, *result)
}
}
}
func TestShmVolume(t *testing.T) {
testName := "TestShmVolume"
tests := []struct {
subTest string
podSpec *v1.PodSpec
shmPos int
}{
{
subTest: "empty PodSpec",
podSpec: &v1.PodSpec{
Volumes: []v1.Volume{},
Containers: []v1.Container{
{
VolumeMounts: []v1.VolumeMount{},
},
},
},
shmPos: 0,
},
{
subTest: "non empty PodSpec",
podSpec: &v1.PodSpec{
Volumes: []v1.Volume{{}},
Containers: []v1.Container{
{
VolumeMounts: []v1.VolumeMount{
{},
},
},
},
},
shmPos: 1,
},
}
for _, tt := range tests {
addShmVolume(tt.podSpec)
volumeName := tt.podSpec.Volumes[tt.shmPos].Name
volumeMountName := tt.podSpec.Containers[0].VolumeMounts[tt.shmPos].Name
if volumeName != constants.ShmVolumeName {
t.Errorf("%s %s: Expected volume %s was not created, have %s instead",
testName, tt.subTest, constants.ShmVolumeName, volumeName)
}
if volumeMountName != constants.ShmVolumeName {
t.Errorf("%s %s: Expected mount %s was not created, have %s instead",
testName, tt.subTest, constants.ShmVolumeName, volumeMountName)
}
}
}
func TestCloneEnv(t *testing.T) {
testName := "TestCloneEnv"
tests := []struct {
subTest string
cloneOpts *acidv1.CloneDescription
env v1.EnvVar
envPos int
}{
{
subTest: "custom s3 path",
cloneOpts: &acidv1.CloneDescription{
ClusterName: "test-cluster",
S3WalPath: "s3://some/path/",
EndTimestamp: "somewhen",
},
env: v1.EnvVar{
Name: "CLONE_WALE_S3_PREFIX",
Value: "s3://some/path/",
},
envPos: 1,
},
{
subTest: "generated s3 path, bucket",
cloneOpts: &acidv1.CloneDescription{
ClusterName: "test-cluster",
EndTimestamp: "somewhen",
UID: "0000",
},
env: v1.EnvVar{
Name: "CLONE_WAL_S3_BUCKET",
Value: "wale-bucket",
},
envPos: 1,
},
{
subTest: "generated s3 path, target time",
cloneOpts: &acidv1.CloneDescription{
ClusterName: "test-cluster",
EndTimestamp: "somewhen",
UID: "0000",
},
env: v1.EnvVar{
Name: "CLONE_TARGET_TIME",
Value: "somewhen",
},
envPos: 4,
},
}
var cluster = New(
Config{
OpConfig: config.Config{
WALES3Bucket: "wale-bucket",
ProtectedRoles: []string{"admin"},
Auth: config.Auth{
SuperUsername: superUserName,
ReplicationUsername: replicationUserName,
},
},
}, k8sutil.KubernetesClient{}, acidv1.Postgresql{}, logger, eventRecorder)
for _, tt := range tests {
envs := cluster.generateCloneEnvironment(tt.cloneOpts)
env := envs[tt.envPos]
if env.Name != tt.env.Name {
t.Errorf("%s %s: Expected env name %s, have %s instead",
testName, tt.subTest, tt.env.Name, env.Name)
}
if env.Value != tt.env.Value {
t.Errorf("%s %s: Expected env value %s, have %s instead",
testName, tt.subTest, tt.env.Value, env.Value)
}
}
}
func TestExtractPgVersionFromBinPath(t *testing.T) {
testName := "TestExtractPgVersionFromBinPath"
tests := []struct {
subTest string
binPath string
template string
expected string
}{
{
subTest: "test current bin path with decimal against hard coded template",
binPath: "/usr/lib/postgresql/9.6/bin",
template: pgBinariesLocationTemplate,
expected: "9.6",
},
{
subTest: "test current bin path against hard coded template",
binPath: "/usr/lib/postgresql/12/bin",
template: pgBinariesLocationTemplate,
expected: "12",
},
{
subTest: "test alternative bin path against a matching template",
binPath: "/usr/pgsql-12/bin",
template: "/usr/pgsql-%v/bin",
expected: "12",
},
}
for _, tt := range tests {
pgVersion, err := extractPgVersionFromBinPath(tt.binPath, tt.template)
if err != nil {
t.Errorf("Unexpected error: %v", err)
}
if pgVersion != tt.expected {
t.Errorf("%s %s: Expected version %s, have %s instead",
testName, tt.subTest, tt.expected, pgVersion)
}
}
}
func TestGetPgVersion(t *testing.T) {
testName := "TestGetPgVersion"
tests := []struct {
subTest string
pgContainer v1.Container
currentPgVersion string
newPgVersion string
}{
{
subTest: "new version with decimal point differs from current SPILO_CONFIGURATION",
pgContainer: v1.Container{
Name: "postgres",
Env: []v1.EnvVar{
{
Name: "SPILO_CONFIGURATION",
Value: "{\"postgresql\": {\"bin_dir\": \"/usr/lib/postgresql/9.6/bin\"}}",
},
},
},
currentPgVersion: "9.6",
newPgVersion: "12",
},
{
subTest: "new version differs from current SPILO_CONFIGURATION",
pgContainer: v1.Container{
Name: "postgres",
Env: []v1.EnvVar{
{
Name: "SPILO_CONFIGURATION",
Value: "{\"postgresql\": {\"bin_dir\": \"/usr/lib/postgresql/11/bin\"}}",
},
},
},
currentPgVersion: "11",
newPgVersion: "12",
},
{
subTest: "new version is lower than the one found in current SPILO_CONFIGURATION",
pgContainer: v1.Container{
Name: "postgres",
Env: []v1.EnvVar{
{
Name: "SPILO_CONFIGURATION",
Value: "{\"postgresql\": {\"bin_dir\": \"/usr/lib/postgresql/12/bin\"}}",
},
},
},
currentPgVersion: "12",
newPgVersion: "11",
},
{
subTest: "new version is the same like in the current SPILO_CONFIGURATION",
pgContainer: v1.Container{
Name: "postgres",
Env: []v1.EnvVar{
{
Name: "SPILO_CONFIGURATION",
Value: "{\"postgresql\": {\"bin_dir\": \"/usr/lib/postgresql/12/bin\"}}",
},
},
},
currentPgVersion: "12",
newPgVersion: "12",
},
}
var cluster = New(
Config{
OpConfig: config.Config{
ProtectedRoles: []string{"admin"},
Auth: config.Auth{
SuperUsername: superUserName,
ReplicationUsername: replicationUserName,
},
},
}, k8sutil.KubernetesClient{}, acidv1.Postgresql{}, logger, eventRecorder)
for _, tt := range tests {
pgVersion, err := cluster.getNewPgVersion(tt.pgContainer, tt.newPgVersion)
if err != nil {
t.Errorf("Unexpected error: %v", err)
}
if pgVersion != tt.currentPgVersion {
t.Errorf("%s %s: Expected version %s, have %s instead",
testName, tt.subTest, tt.currentPgVersion, pgVersion)
}
}
}
func TestSecretVolume(t *testing.T) {
testName := "TestSecretVolume"
tests := []struct {
subTest string
podSpec *v1.PodSpec
secretPos int
}{
{
subTest: "empty PodSpec",
podSpec: &v1.PodSpec{
Volumes: []v1.Volume{},
Containers: []v1.Container{
{
VolumeMounts: []v1.VolumeMount{},
},
},
},
secretPos: 0,
},
{
subTest: "non empty PodSpec",
podSpec: &v1.PodSpec{
Volumes: []v1.Volume{{}},
Containers: []v1.Container{
{
VolumeMounts: []v1.VolumeMount{
{
Name: "data",
ReadOnly: false,
MountPath: "/data",
},
},
},
},
},
secretPos: 1,
},
}
for _, tt := range tests {
additionalSecretMount := "aws-iam-s3-role"
additionalSecretMountPath := "/meta/credentials"
numMounts := len(tt.podSpec.Containers[0].VolumeMounts)
addSecretVolume(tt.podSpec, additionalSecretMount, additionalSecretMountPath)
volumeName := tt.podSpec.Volumes[tt.secretPos].Name
if volumeName != additionalSecretMount {
t.Errorf("%s %s: Expected volume %s was not created, have %s instead",
testName, tt.subTest, additionalSecretMount, volumeName)
}
for i := range tt.podSpec.Containers {
volumeMountName := tt.podSpec.Containers[i].VolumeMounts[tt.secretPos].Name
if volumeMountName != additionalSecretMount {
t.Errorf("%s %s: Expected mount %s was not created, have %s instead",
testName, tt.subTest, additionalSecretMount, volumeMountName)
}
}
numMountsCheck := len(tt.podSpec.Containers[0].VolumeMounts)
if numMountsCheck != numMounts+1 {
t.Errorf("Unexpected number of VolumeMounts: got %v instead of %v",
numMountsCheck, numMounts+1)
}
}
}
const (
testPodEnvironmentConfigMapName = "pod_env_cm"
testPodEnvironmentSecretName = "pod_env_sc"
)
type mockSecret struct {
v1core.SecretInterface
}
type mockConfigMap struct {
v1core.ConfigMapInterface
}
func (c *mockSecret) Get(ctx context.Context, name string, options metav1.GetOptions) (*v1.Secret, error) {
if name != testPodEnvironmentSecretName {
return nil, fmt.Errorf("Secret PodEnvironmentSecret not found")
}
secret := &v1.Secret{}
secret.Name = testPodEnvironmentSecretName
secret.Data = map[string][]byte{
"minio_access_key": []byte("alpha"),
"minio_secret_key": []byte("beta"),
}
return secret, nil
}
func (c *mockConfigMap) Get(ctx context.Context, name string, options metav1.GetOptions) (*v1.ConfigMap, error) {
if name != testPodEnvironmentConfigMapName {
return nil, fmt.Errorf("NotFound")
}
configmap := &v1.ConfigMap{}
configmap.Name = testPodEnvironmentConfigMapName
configmap.Data = map[string]string{
"foo1": "bar1",
"foo2": "bar2",
}
return configmap, nil
}
type MockSecretGetter struct {
}
type MockConfigMapsGetter struct {
}
func (c *MockSecretGetter) Secrets(namespace string) v1core.SecretInterface {
return &mockSecret{}
}
func (c *MockConfigMapsGetter) ConfigMaps(namespace string) v1core.ConfigMapInterface {
return &mockConfigMap{}
}
func newMockKubernetesClient() k8sutil.KubernetesClient {
return k8sutil.KubernetesClient{
SecretsGetter: &MockSecretGetter{},
ConfigMapsGetter: &MockConfigMapsGetter{},
}
}
func newMockCluster(opConfig config.Config) *Cluster {
cluster := &Cluster{
Config: Config{OpConfig: opConfig},
KubeClient: newMockKubernetesClient(),
}
return cluster
}
func TestPodEnvironmentConfigMapVariables(t *testing.T) {
testName := "TestPodEnvironmentConfigMapVariables"
tests := []struct {
subTest string
opConfig config.Config
envVars []v1.EnvVar
err error
}{
{
subTest: "no PodEnvironmentConfigMap",
envVars: []v1.EnvVar{},
},
{
subTest: "missing PodEnvironmentConfigMap",
opConfig: config.Config{
Resources: config.Resources{
PodEnvironmentConfigMap: spec.NamespacedName{
Name: "idonotexist",
},
},
},
err: fmt.Errorf("could not read PodEnvironmentConfigMap: NotFound"),
},
{
subTest: "simple PodEnvironmentConfigMap",
opConfig: config.Config{
Resources: config.Resources{
PodEnvironmentConfigMap: spec.NamespacedName{
Name: testPodEnvironmentConfigMapName,
},
},
},
envVars: []v1.EnvVar{
{
Name: "foo1",
Value: "bar1",
},
{
Name: "foo2",
Value: "bar2",
},
},
},
}
for _, tt := range tests {
c := newMockCluster(tt.opConfig)
vars, err := c.getPodEnvironmentConfigMapVariables()
sort.Slice(vars, func(i, j int) bool { return vars[i].Name < vars[j].Name })
if !reflect.DeepEqual(vars, tt.envVars) {
t.Errorf("%s %s: expected `%v` but got `%v`",
testName, tt.subTest, tt.envVars, vars)
}
if tt.err != nil {
if err.Error() != tt.err.Error() {
t.Errorf("%s %s: expected error `%v` but got `%v`",
testName, tt.subTest, tt.err, err)
}
} else {
if err != nil {
t.Errorf("%s %s: expected no error but got error: `%v`",
testName, tt.subTest, err)
}
}
}
}
// Test if the keys of an existing secret are properly referenced
func TestPodEnvironmentSecretVariables(t *testing.T) {
testName := "TestPodEnvironmentSecretVariables"
tests := []struct {
subTest string
opConfig config.Config
envVars []v1.EnvVar
err error
}{
{
subTest: "No PodEnvironmentSecret configured",
envVars: []v1.EnvVar{},
},
{
subTest: "Secret referenced by PodEnvironmentSecret does not exist",
opConfig: config.Config{
Resources: config.Resources{
PodEnvironmentSecret: "idonotexist",
},
},
err: fmt.Errorf("could not read Secret PodEnvironmentSecretName: Secret PodEnvironmentSecret not found"),
},
{
subTest: "Pod environment vars reference all keys from secret configured by PodEnvironmentSecret",
opConfig: config.Config{
Resources: config.Resources{
PodEnvironmentSecret: testPodEnvironmentSecretName,
},
},
envVars: []v1.EnvVar{
{
Name: "minio_access_key",
ValueFrom: &v1.EnvVarSource{
SecretKeyRef: &v1.SecretKeySelector{
LocalObjectReference: v1.LocalObjectReference{
Name: testPodEnvironmentSecretName,
},
Key: "minio_access_key",
},
},
},
{
Name: "minio_secret_key",
ValueFrom: &v1.EnvVarSource{
SecretKeyRef: &v1.SecretKeySelector{
LocalObjectReference: v1.LocalObjectReference{
Name: testPodEnvironmentSecretName,
},
Key: "minio_secret_key",
},
},
},
},
},
}
for _, tt := range tests {
c := newMockCluster(tt.opConfig)
vars, err := c.getPodEnvironmentSecretVariables()
sort.Slice(vars, func(i, j int) bool { return vars[i].Name < vars[j].Name })
if !reflect.DeepEqual(vars, tt.envVars) {
t.Errorf("%s %s: expected `%v` but got `%v`",
testName, tt.subTest, tt.envVars, vars)
}
if tt.err != nil {
if err.Error() != tt.err.Error() {
t.Errorf("%s %s: expected error `%v` but got `%v`",
testName, tt.subTest, tt.err, err)
}
} else {
if err != nil {
t.Errorf("%s %s: expected no error but got error: `%v`",
testName, tt.subTest, err)
}
}
}
}
func testResources(cluster *Cluster, podSpec *v1.PodTemplateSpec) error {
cpuReq := podSpec.Spec.Containers[0].Resources.Requests["cpu"]
if cpuReq.String() != cluster.OpConfig.ConnectionPooler.ConnectionPoolerDefaultCPURequest {
return fmt.Errorf("CPU request doesn't match, got %s, expected %s",
cpuReq.String(), cluster.OpConfig.ConnectionPooler.ConnectionPoolerDefaultCPURequest)
}
memReq := podSpec.Spec.Containers[0].Resources.Requests["memory"]
if memReq.String() != cluster.OpConfig.ConnectionPooler.ConnectionPoolerDefaultMemoryRequest {
return fmt.Errorf("Memory request doesn't match, got %s, expected %s",
memReq.String(), cluster.OpConfig.ConnectionPooler.ConnectionPoolerDefaultMemoryRequest)
}
cpuLim := podSpec.Spec.Containers[0].Resources.Limits["cpu"]
if cpuLim.String() != cluster.OpConfig.ConnectionPooler.ConnectionPoolerDefaultCPULimit {
return fmt.Errorf("CPU limit doesn't match, got %s, expected %s",
cpuLim.String(), cluster.OpConfig.ConnectionPooler.ConnectionPoolerDefaultCPULimit)
}
memLim := podSpec.Spec.Containers[0].Resources.Limits["memory"]
if memLim.String() != cluster.OpConfig.ConnectionPooler.ConnectionPoolerDefaultMemoryLimit {
return fmt.Errorf("Memory limit doesn't match, got %s, expected %s",
memLim.String(), cluster.OpConfig.ConnectionPooler.ConnectionPoolerDefaultMemoryLimit)
}
return nil
}
func testLabels(cluster *Cluster, podSpec *v1.PodTemplateSpec) error {
poolerLabels := podSpec.ObjectMeta.Labels["connection-pooler"]
if poolerLabels != cluster.connectionPoolerLabelsSelector().MatchLabels["connection-pooler"] {
return fmt.Errorf("Pod labels do not match, got %+v, expected %+v",
podSpec.ObjectMeta.Labels, cluster.connectionPoolerLabelsSelector().MatchLabels)
}
return nil
}
func testEnvs(cluster *Cluster, podSpec *v1.PodTemplateSpec) error {
required := map[string]bool{
"PGHOST": false,
"PGPORT": false,
"PGUSER": false,
"PGSCHEMA": false,
"PGPASSWORD": false,
"CONNECTION_POOLER_MODE": false,
"CONNECTION_POOLER_PORT": false,
}
envs := podSpec.Spec.Containers[0].Env
for _, env := range envs {
required[env.Name] = true
}
for env, value := range required {
if !value {
return fmt.Errorf("Environment variable %s is not present", env)
}
}
return nil
}
func testCustomPodTemplate(cluster *Cluster, podSpec *v1.PodTemplateSpec) error {
if podSpec.ObjectMeta.Name != "test-pod-template" {
return fmt.Errorf("Custom pod template is not used, current spec %+v",
podSpec)
}