gatus/config/config_test.go
2020-11-21 03:42:42 +01:00

722 lines
23 KiB
Go

package config
import (
"fmt"
"strings"
"testing"
"time"
"github.com/TwinProduction/gatus/core"
"github.com/TwinProduction/gatus/k8stest"
v1 "k8s.io/api/core/v1"
)
func TestGetBeforeConfigIsLoaded(t *testing.T) {
defer func() { recover() }()
Get()
t.Fatal("Should've panicked because the configuration hasn't been loaded yet")
}
func TestLoadFileThatDoesNotExist(t *testing.T) {
err := Load("file-that-does-not-exist.yaml")
if err == nil {
t.Error("Should've returned an error, because the file specified doesn't exist")
}
}
func TestLoadDefaultConfigurationFile(t *testing.T) {
err := LoadDefaultConfiguration()
if err == nil {
t.Error("Should've returned an error, because there's no configuration files at the default path nor the default fallback path")
}
}
func TestParseAndValidateConfigBytes(t *testing.T) {
config, err := parseAndValidateConfigBytes([]byte(`
services:
- name: twinnation
url: https://twinnation.org/health
interval: 15s
conditions:
- "[STATUS] == 200"
- name: github
url: https://api.github.com/healthz
conditions:
- "[STATUS] != 400"
- "[STATUS] != 500"
`))
if err != nil {
t.Error("No error should've been returned")
}
if config == nil {
t.Fatal("Config shouldn't have been nil")
}
if len(config.Services) != 2 {
t.Error("Should have returned two services")
}
if config.Services[0].URL != "https://twinnation.org/health" {
t.Errorf("URL should have been %s", "https://twinnation.org/health")
}
if config.Services[1].URL != "https://api.github.com/healthz" {
t.Errorf("URL should have been %s", "https://api.github.com/healthz")
}
if config.Services[0].Method != "GET" {
t.Errorf("Method should have been %s (default)", "GET")
}
if config.Services[1].Method != "GET" {
t.Errorf("Method should have been %s (default)", "GET")
}
if config.Services[0].Interval != 15*time.Second {
t.Errorf("Interval should have been %s", 15*time.Second)
}
if config.Services[1].Interval != 60*time.Second {
t.Errorf("Interval should have been %s, because it is the default value", 60*time.Second)
}
if len(config.Services[0].Conditions) != 1 {
t.Errorf("There should have been %d conditions", 1)
}
if len(config.Services[1].Conditions) != 2 {
t.Errorf("There should have been %d conditions", 2)
}
}
func TestParseAndValidateConfigBytesDefault(t *testing.T) {
config, err := parseAndValidateConfigBytes([]byte(`
services:
- name: twinnation
url: https://twinnation.org/health
conditions:
- "[STATUS] == 200"
`))
if err != nil {
t.Error("No error should've been returned")
}
if config == nil {
t.Fatal("Config shouldn't have been nil")
}
if config.Metrics {
t.Error("Metrics should've been false by default")
}
if config.Services[0].URL != "https://twinnation.org/health" {
t.Errorf("URL should have been %s", "https://twinnation.org/health")
}
if config.Services[0].Interval != 60*time.Second {
t.Errorf("Interval should have been %s, because it is the default value", 60*time.Second)
}
if config.Web.Address != DefaultAddress {
t.Errorf("Bind address should have been %s, because it is the default value", DefaultAddress)
}
if config.Web.Port != DefaultPort {
t.Errorf("Port should have been %d, because it is the default value", DefaultPort)
}
if config.Web.ContextRoot != DefaultContextRoot {
t.Errorf("ContextRoot should have been %s, because it is the default value", DefaultContextRoot)
}
}
func TestParseAndValidateConfigBytesWithAddress(t *testing.T) {
config, err := parseAndValidateConfigBytes([]byte(`
web:
address: 127.0.0.1
services:
- name: twinnation
url: https://twinnation.org/actuator/health
conditions:
- "[STATUS] == 200"
`))
if err != nil {
t.Error("No error should've been returned")
}
if config == nil {
t.Fatal("Config shouldn't have been nil")
}
if config.Metrics {
t.Error("Metrics should've been false by default")
}
if config.Services[0].URL != "https://twinnation.org/actuator/health" {
t.Errorf("URL should have been %s", "https://twinnation.org/actuator/health")
}
if config.Services[0].Interval != 60*time.Second {
t.Errorf("Interval should have been %s, because it is the default value", 60*time.Second)
}
if config.Web.Address != "127.0.0.1" {
t.Errorf("Bind address should have been %s, because it is specified in config", "127.0.0.1")
}
if config.Web.Port != DefaultPort {
t.Errorf("Port should have been %d, because it is the default value", DefaultPort)
}
}
func TestParseAndValidateConfigBytesWithPort(t *testing.T) {
config, err := parseAndValidateConfigBytes([]byte(`
web:
port: 12345
services:
- name: twinnation
url: https://twinnation.org/actuator/health
conditions:
- "[STATUS] == 200"
`))
if err != nil {
t.Error("No error should've been returned")
}
if config == nil {
t.Fatal("Config shouldn't have been nil")
}
if config.Metrics {
t.Error("Metrics should've been false by default")
}
if config.Services[0].URL != "https://twinnation.org/actuator/health" {
t.Errorf("URL should have been %s", "https://twinnation.org/actuator/health")
}
if config.Services[0].Interval != 60*time.Second {
t.Errorf("Interval should have been %s, because it is the default value", 60*time.Second)
}
if config.Web.Address != DefaultAddress {
t.Errorf("Bind address should have been %s, because it is the default value", DefaultAddress)
}
if config.Web.Port != 12345 {
t.Errorf("Port should have been %d, because it is specified in config", 12345)
}
}
func TestParseAndValidateConfigBytesWithPortAndHost(t *testing.T) {
config, err := parseAndValidateConfigBytes([]byte(`
web:
port: 12345
address: 127.0.0.1
services:
- name: twinnation
url: https://twinnation.org/health
conditions:
- "[STATUS] == 200"
`))
if err != nil {
t.Error("No error should've been returned")
}
if config == nil {
t.Fatal("Config shouldn't have been nil")
}
if config.Metrics {
t.Error("Metrics should've been false by default")
}
if config.Services[0].URL != "https://twinnation.org/health" {
t.Errorf("URL should have been %s", "https://twinnation.org/health")
}
if config.Services[0].Interval != 60*time.Second {
t.Errorf("Interval should have been %s, because it is the default value", 60*time.Second)
}
if config.Web.Address != "127.0.0.1" {
t.Errorf("Bind address should have been %s, because it is specified in config", "127.0.0.1")
}
if config.Web.Port != 12345 {
t.Errorf("Port should have been %d, because it is specified in config", 12345)
}
}
func TestParseAndValidateConfigBytesWithPortAndHostAndContextRoot(t *testing.T) {
config, err := parseAndValidateConfigBytes([]byte(`
web:
port: 12345
address: 127.0.0.1
context-root: /deeply/nested/down=/their
services:
- name: twinnation
url: https://twinnation.org/health
conditions:
- "[STATUS] == 200"
`))
if err != nil {
t.Error("No error should've been returned")
}
if config == nil {
t.Fatal("Config shouldn't have been nil")
}
if config.Metrics {
t.Error("Metrics should've been false by default")
}
if config.Services[0].URL != "https://twinnation.org/health" {
t.Errorf("URL should have been %s", "https://twinnation.org/health")
}
if config.Services[0].Interval != 60*time.Second {
t.Errorf("Interval should have been %s, because it is the default value", 60*time.Second)
}
if config.Web.Address != "127.0.0.1" {
t.Errorf("Bind address should have been %s, because it is specified in config", "127.0.0.1")
}
if config.Web.Port != 12345 {
t.Errorf("Port should have been %d, because it is specified in config", 12345)
}
if config.Web.ContextRoot != "/deeply/nested/down=/their/" {
t.Errorf("Port should have been %s, because it is specified in config", "/deeply/nested/down=/their/")
}
}
func TestParseAndValidateConfigBytesWithInvalidPort(t *testing.T) {
defer func() { recover() }()
_, _ = parseAndValidateConfigBytes([]byte(`
web:
port: 65536
address: 127.0.0.1
services:
- name: twinnation
url: https://twinnation.org/health
conditions:
- "[STATUS] == 200"
`))
t.Fatal("Should've panicked because the configuration specifies an invalid port value")
}
func TestParseAndValidateConfigBytesWithMetrics(t *testing.T) {
config, err := parseAndValidateConfigBytes([]byte(`
metrics: true
services:
- name: twinnation
url: https://twinnation.org/health
conditions:
- "[STATUS] == 200"
`))
if err != nil {
t.Error("No error should've been returned")
}
if config == nil {
t.Fatal("Config shouldn't have been nil")
}
if !config.Metrics {
t.Error("Metrics should have been true")
}
if config.Services[0].URL != "https://twinnation.org/health" {
t.Errorf("URL should have been %s", "https://twinnation.org/health")
}
if config.Services[0].Interval != 60*time.Second {
t.Errorf("Interval should have been %s, because it is the default value", 60*time.Second)
}
if config.Web.Address != DefaultAddress {
t.Errorf("Bind address should have been %s, because it is the default value", DefaultAddress)
}
if config.Web.Port != DefaultPort {
t.Errorf("Port should have been %d, because it is the default value", DefaultPort)
}
if config.Web.ContextRoot != DefaultContextRoot {
t.Errorf("ContextRoot should have been %s, because it is the default value", DefaultContextRoot)
}
}
func TestParseAndValidateConfigBytesWithMetricsAndHostAndPort(t *testing.T) {
config, err := parseAndValidateConfigBytes([]byte(`
metrics: true
services:
- name: twinnation
url: https://twinnation.org/health
conditions:
- "[STATUS] == 200"
web:
address: 192.168.0.1
port: 9090
`))
if err != nil {
t.Error("No error should've been returned")
}
if config == nil {
t.Fatal("Config shouldn't have been nil")
}
if !config.Metrics {
t.Error("Metrics should have been true")
}
if config.Services[0].URL != "https://twinnation.org/health" {
t.Errorf("URL should have been %s", "https://twinnation.org/health")
}
if config.Services[0].Interval != 60*time.Second {
t.Errorf("Interval should have been %s, because it is the default value", 60*time.Second)
}
if config.Web.Address != "192.168.0.1" {
t.Errorf("Bind address should have been %s, because it is the default value", "192.168.0.1")
}
if config.Web.Port != 9090 {
t.Errorf("Port should have been %d, because it is specified in config", 9090)
}
}
func TestParseAndValidateBadConfigBytes(t *testing.T) {
_, err := parseAndValidateConfigBytes([]byte(`
badconfig:
- asdsa: w0w
usadasdrl: asdxzczxc
asdas:
- soup
`))
if err == nil {
t.Error("An error should've been returned")
}
if err != ErrNoServiceInConfig {
t.Error("The error returned should have been of type ErrNoServiceInConfig")
}
}
func TestParseAndValidateConfigBytesWithAlerting(t *testing.T) {
config, err := parseAndValidateConfigBytes([]byte(`
debug: true
alerting:
slack:
webhook-url: "http://example.com"
pagerduty:
integration-key: "00000000000000000000000000000000"
services:
- name: twinnation
url: https://twinnation.org/health
alerts:
- type: slack
enabled: true
- type: pagerduty
enabled: true
failure-threshold: 7
success-threshold: 5
description: "Healthcheck failed 7 times in a row"
conditions:
- "[STATUS] == 200"
`))
if err != nil {
t.Error("No error should've been returned")
}
if config == nil {
t.Fatal("Config shouldn't have been nil")
}
if config.Metrics {
t.Error("Metrics should've been false by default")
}
if config.Alerting == nil {
t.Fatal("config.Alerting shouldn't have been nil")
}
if config.Alerting.Slack == nil || !config.Alerting.Slack.IsValid() {
t.Fatal("Slack alerting config should've been valid")
}
if config.Alerting.Slack.WebhookURL != "http://example.com" {
t.Errorf("Slack webhook should've been %s, but was %s", "http://example.com", config.Alerting.Slack.WebhookURL)
}
if config.Alerting.PagerDuty == nil || !config.Alerting.PagerDuty.IsValid() {
t.Fatal("PagerDuty alerting config should've been valid")
}
if config.Alerting.PagerDuty.IntegrationKey != "00000000000000000000000000000000" {
t.Errorf("PagerDuty integration key should've been %s, but was %s", "00000000000000000000000000000000", config.Alerting.PagerDuty.IntegrationKey)
}
if len(config.Services) != 1 {
t.Error("There should've been 1 service")
}
if config.Services[0].URL != "https://twinnation.org/health" {
t.Errorf("URL should have been %s", "https://twinnation.org/health")
}
if config.Services[0].Interval != 60*time.Second {
t.Errorf("Interval should have been %s, because it is the default value", 60*time.Second)
}
if config.Services[0].Alerts == nil {
t.Fatal("The service alerts shouldn't have been nil")
}
if len(config.Services[0].Alerts) != 2 {
t.Fatal("There should've been 2 alert configured")
}
if !config.Services[0].Alerts[0].Enabled {
t.Error("The alert should've been enabled")
}
if config.Services[0].Alerts[0].FailureThreshold != 3 {
t.Errorf("The default failure threshold of the alert should've been %d, but it was %d", 3, config.Services[0].Alerts[0].FailureThreshold)
}
if config.Services[0].Alerts[0].SuccessThreshold != 2 {
t.Errorf("The default success threshold of the alert should've been %d, but it was %d", 2, config.Services[0].Alerts[0].SuccessThreshold)
}
if config.Services[0].Alerts[1].FailureThreshold != 7 {
t.Errorf("The failure threshold of the alert should've been %d, but it was %d", 7, config.Services[0].Alerts[1].FailureThreshold)
}
if config.Services[0].Alerts[1].SuccessThreshold != 5 {
t.Errorf("The success threshold of the alert should've been %d, but it was %d", 5, config.Services[0].Alerts[1].SuccessThreshold)
}
if config.Services[0].Alerts[0].Type != core.SlackAlert {
t.Errorf("The type of the alert should've been %s, but it was %s", core.SlackAlert, config.Services[0].Alerts[0].Type)
}
if config.Services[0].Alerts[1].Type != core.PagerDutyAlert {
t.Errorf("The type of the alert should've been %s, but it was %s", core.PagerDutyAlert, config.Services[0].Alerts[1].Type)
}
if config.Services[0].Alerts[1].Description != "Healthcheck failed 7 times in a row" {
t.Errorf("The description of the alert should've been %s, but it was %s", "Healthcheck failed 7 times in a row", config.Services[0].Alerts[0].Description)
}
}
func TestParseAndValidateConfigBytesWithInvalidPagerDutyAlertingConfig(t *testing.T) {
config, err := parseAndValidateConfigBytes([]byte(`
alerting:
pagerduty:
integration-key: "INVALID_KEY"
services:
- name: twinnation
url: https://twinnation.org/health
alerts:
- type: pagerduty
conditions:
- "[STATUS] == 200"
`))
if err != nil {
t.Error("No error should've been returned")
}
if config == nil {
t.Fatal("Config shouldn't have been nil")
}
if config.Alerting == nil {
t.Fatal("config.Alerting shouldn't have been nil")
}
if config.Alerting.PagerDuty == nil {
t.Fatal("PagerDuty alerting config shouldn't have been nil")
}
if config.Alerting.PagerDuty.IsValid() {
t.Fatal("PagerDuty alerting config should've been invalid")
}
}
func TestParseAndValidateConfigBytesWithCustomAlertingConfig(t *testing.T) {
config, err := parseAndValidateConfigBytes([]byte(`
alerting:
custom:
url: "https://example.com"
body: |
{
"text": "[ALERT_TRIGGERED_OR_RESOLVED]: [SERVICE_NAME] - [ALERT_DESCRIPTION]"
}
services:
- name: twinnation
url: https://twinnation.org/health
alerts:
- type: custom
conditions:
- "[STATUS] == 200"
`))
if err != nil {
t.Error("No error should've been returned")
}
if config == nil {
t.Fatal("Config shouldn't have been nil")
}
if config.Alerting == nil {
t.Fatal("config.Alerting shouldn't have been nil")
}
if config.Alerting.Custom == nil {
t.Fatal("PagerDuty alerting config shouldn't have been nil")
}
if !config.Alerting.Custom.IsValid() {
t.Fatal("Custom alerting config should've been valid")
}
if config.Alerting.Custom.Insecure {
t.Fatal("config.Alerting.Custom.Insecure shouldn't have been true")
}
}
func TestParseAndValidateConfigBytesWithCustomAlertingConfigThatHasInsecureSetToTrue(t *testing.T) {
config, err := parseAndValidateConfigBytes([]byte(`
alerting:
custom:
url: "https://example.com"
method: "POST"
insecure: true
body: |
{
"text": "[ALERT_TRIGGERED_OR_RESOLVED]: [SERVICE_NAME] - [ALERT_DESCRIPTION]"
}
services:
- name: twinnation
url: https://twinnation.org/health
alerts:
- type: custom
conditions:
- "[STATUS] == 200"
`))
if err != nil {
t.Error("No error should've been returned")
}
if config == nil {
t.Fatal("Config shouldn't have been nil")
}
if config.Alerting == nil {
t.Fatal("config.Alerting shouldn't have been nil")
}
if config.Alerting.Custom == nil {
t.Fatal("PagerDuty alerting config shouldn't have been nil")
}
if !config.Alerting.Custom.IsValid() {
t.Error("Custom alerting config should've been valid")
}
if config.Alerting.Custom.Method != "POST" {
t.Error("config.Alerting.Custom.Method should've been POST")
}
if !config.Alerting.Custom.Insecure {
t.Error("config.Alerting.Custom.Insecure shouldn't have been true")
}
}
func TestParseAndValidateConfigBytesWithInvalidSecurityConfig(t *testing.T) {
defer func() { recover() }()
_, _ = parseAndValidateConfigBytes([]byte(`
security:
basic:
username: "admin"
password-sha512: "invalid-sha512-hash"
services:
- name: twinnation
url: https://twinnation.org/health
conditions:
- "[STATUS] == 200"
`))
t.Error("Function should've panicked")
}
func TestParseAndValidateConfigBytesWithValidSecurityConfig(t *testing.T) {
const expectedUsername = "admin"
const expectedPasswordHash = "6b97ed68d14eb3f1aa959ce5d49c7dc612e1eb1dafd73b1e705847483fd6a6c809f2ceb4e8df6ff9984c6298ff0285cace6614bf8daa9f0070101b6c89899e22"
config, err := parseAndValidateConfigBytes([]byte(fmt.Sprintf(`
security:
basic:
username: "%s"
password-sha512: "%s"
services:
- name: twinnation
url: https://twinnation.org/health
conditions:
- "[STATUS] == 200"
`, expectedUsername, expectedPasswordHash)))
if err != nil {
t.Error("No error should've been returned")
}
if config == nil {
t.Fatal("Config shouldn't have been nil")
}
if config.Security == nil {
t.Fatal("config.Security shouldn't have been nil")
}
if !config.Security.IsValid() {
t.Error("Security config should've been valid")
}
if config.Security.Basic == nil {
t.Fatal("config.Security.Basic shouldn't have been nil")
}
if config.Security.Basic.Username != expectedUsername {
t.Errorf("config.Security.Basic.Username should've been %s, but was %s", expectedUsername, config.Security.Basic.Username)
}
if config.Security.Basic.PasswordSha512Hash != expectedPasswordHash {
t.Errorf("config.Security.Basic.PasswordSha512Hash should've been %s, but was %s", expectedPasswordHash, config.Security.Basic.PasswordSha512Hash)
}
}
func TestParseAndValidateConfigBytesWithNoServicesOrAutoDiscovery(t *testing.T) {
_, err := parseAndValidateConfigBytes([]byte(``))
if err != ErrNoServiceInConfig {
t.Error("The error returned should have been of type ErrNoServiceInConfig")
}
}
func TestParseAndValidateConfigBytesWithKubernetesAutoDiscovery(t *testing.T) {
var kubernetesServices []v1.Service
kubernetesServices = append(kubernetesServices, k8stest.CreateTestServices("service-1", "default", 8080))
kubernetesServices = append(kubernetesServices, k8stest.CreateTestServices("service-2", "default", 8080))
kubernetesServices = append(kubernetesServices, k8stest.CreateTestServices("service-2-canary", "default", 8080))
kubernetesServices = append(kubernetesServices, k8stest.CreateTestServices("service-3", "kube-system", 8080))
kubernetesServices = append(kubernetesServices, k8stest.CreateTestServices("service-4", "tools", 8080))
kubernetesServices = append(kubernetesServices, k8stest.CreateTestServices("service-5", "tools", 8080))
kubernetesServices = append(kubernetesServices, k8stest.CreateTestServices("service-6", "tools", 8080))
kubernetesServices = append(kubernetesServices, k8stest.CreateTestServices("service-7", "metrics", 8080))
kubernetesServices = append(kubernetesServices, k8stest.CreateTestServices("service-7-canary", "metrics", 8080))
k8stest.InitializeMockedKubernetesClient(kubernetesServices)
config, err := parseAndValidateConfigBytes([]byte(`
debug: true
kubernetes:
cluster-mode: "mock"
auto-discover: true
excluded-service-suffixes:
- canary
service-template:
interval: 29s
conditions:
- "[STATUS] == 200"
namespaces:
- name: default
hostname-suffix: ".default.svc.cluster.local"
target-path: "/health"
- name: tools
hostname-suffix: ".tools.svc.cluster.local"
target-path: "/health"
excluded-services:
- service-6
- name: metrics
hostname-suffix: ".metrics.svc.cluster.local"
target-path: "/health"
`))
if err != nil {
t.Error("No error should've been returned")
}
if config == nil {
t.Fatal("Config shouldn't have been nil")
}
if config.Kubernetes == nil {
t.Fatal("Kuberbetes config shouldn't have been nil")
}
if len(config.Services) != 5 {
t.Error("Expected 5 services to have been added through k8s auto discovery, got", len(config.Services))
}
for _, service := range config.Services {
if service.Name == "service-2-canary" || service.Name == "service-7-canary" {
t.Errorf("service '%s' should've been excluded because excluded-service-suffixes has 'canary'", service.Name)
} else if service.Name == "service-6" {
t.Errorf("service '%s' should've been excluded because excluded-services has 'service-6'", service.Name)
} else if service.Name == "service-3" {
t.Errorf("service '%s' should've been excluded because the namespace 'kube-system' is not configured for auto discovery", service.Name)
} else {
if service.Interval != 29*time.Second {
t.Errorf("service '%s' should've had an interval of 29s, because the template is configured for it", service.Name)
}
if len(service.Conditions) != 1 {
t.Errorf("service '%s' should've had 1 condition", service.Name)
}
if len(service.Conditions) == 1 && *service.Conditions[0] != "[STATUS] == 200" {
t.Errorf("service '%s' should've had the condition '[STATUS] == 200', because the template is configured for it", service.Name)
}
if !strings.HasSuffix(service.URL, ".svc.cluster.local:8080/health") {
t.Errorf("service '%s' should've had an URL with the suffix '.svc.cluster.local:8080/health'", service.Name)
}
}
}
}
func TestParseAndValidateConfigBytesWithKubernetesAutoDiscoveryButNoServiceTemplate(t *testing.T) {
defer func() { recover() }()
_, _ = parseAndValidateConfigBytes([]byte(`
kubernetes:
cluster-mode: "mock"
auto-discover: true
namespaces:
- name: default
hostname-suffix: ".default.svc.cluster.local"
target-path: "/health"
`))
t.Error("Function should've panicked because providing a service-template is mandatory")
}
func TestParseAndValidateConfigBytesWithKubernetesAutoDiscoveryUsingClusterModeIn(t *testing.T) {
defer func() { recover() }()
_, _ = parseAndValidateConfigBytes([]byte(`
kubernetes:
cluster-mode: "in"
auto-discover: true
service-template:
interval: 30s
conditions:
- "[STATUS] == 200"
namespaces:
- name: default
hostname-suffix: ".default.svc.cluster.local"
target-path: "/health"
`))
// TODO: find a way to test this?
t.Error("Function should've panicked because testing with ClusterModeIn isn't supported")
}