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ruler_test.go
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//go:build integration_ruler
// +build integration_ruler
package integration
import (
"bytes"
"context"
"crypto/x509"
"crypto/x509/pkix"
"encoding/json"
"fmt"
"math/rand"
"net/http"
"os"
"path/filepath"
"sort"
"strconv"
"strings"
"testing"
"time"
v1 "github.com/prometheus/client_golang/api/prometheus/v1"
"github.com/prometheus/common/model"
"github.com/prometheus/prometheus/model/labels"
"github.com/prometheus/prometheus/model/rulefmt"
"github.com/prometheus/prometheus/prompb"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/thanos-io/objstore/providers/s3"
"gopkg.in/yaml.v3"
"github.com/cortexproject/cortex/integration/ca"
"github.com/cortexproject/cortex/integration/e2e"
e2edb "github.com/cortexproject/cortex/integration/e2e/db"
"github.com/cortexproject/cortex/integration/e2ecortex"
"github.com/cortexproject/cortex/pkg/ruler"
"github.com/cortexproject/cortex/pkg/ruler/rulespb"
"github.com/cortexproject/cortex/pkg/storage/tsdb"
)
func TestRulerAPI(t *testing.T) {
var (
namespaceOne = "test_/encoded_+namespace/?"
namespaceTwo = "test_/encoded_+namespace/?/two"
)
ruleGroup := createTestRuleGroup(t)
for _, thanosEngine := range []bool{false, true} {
t.Run(fmt.Sprintf("thanosEngine=%t", thanosEngine), func(t *testing.T) {
s, err := e2e.NewScenario(networkName)
require.NoError(t, err)
defer s.Close()
// Start dependencies.
consul := e2edb.NewConsul()
minio := e2edb.NewMinio(9000, rulestoreBucketName, bucketName)
require.NoError(t, s.StartAndWaitReady(consul, minio))
flags := mergeFlags(BlocksStorageFlags(), RulerFlags(), map[string]string{
"-querier.thanos-engine": strconv.FormatBool(thanosEngine),
})
// Start Cortex components.
ruler := e2ecortex.NewRuler("ruler", consul.NetworkHTTPEndpoint(), flags, "")
require.NoError(t, s.StartAndWaitReady(ruler))
// Create a client with the ruler address configured
c, err := e2ecortex.NewClient("", "", "", ruler.HTTPEndpoint(), "user-1")
require.NoError(t, err)
// Set the rule group into the ruler
require.NoError(t, c.SetRuleGroup(ruleGroup, namespaceOne))
// Wait until the user manager is created
require.NoError(t, ruler.WaitSumMetrics(e2e.Equals(1), "cortex_ruler_managers_total"))
// Check to ensure the rules running in the ruler match what was set
rgs, err := c.GetRuleGroups()
require.NoError(t, err)
retrievedNamespace, exists := rgs[namespaceOne]
require.True(t, exists)
require.Len(t, retrievedNamespace, 1)
require.Equal(t, retrievedNamespace[0].Name, ruleGroup.Name)
// Add a second rule group with a similar namespace
require.NoError(t, c.SetRuleGroup(ruleGroup, namespaceTwo))
require.NoError(t, ruler.WaitSumMetrics(e2e.Equals(2), "cortex_prometheus_rule_group_rules"))
// Check to ensure the rules running in the ruler match what was set
rgs, err = c.GetRuleGroups()
require.NoError(t, err)
retrievedNamespace, exists = rgs[namespaceOne]
require.True(t, exists)
require.Len(t, retrievedNamespace, 1)
require.Equal(t, retrievedNamespace[0].Name, ruleGroup.Name)
retrievedNamespace, exists = rgs[namespaceTwo]
require.True(t, exists)
require.Len(t, retrievedNamespace, 1)
require.Equal(t, retrievedNamespace[0].Name, ruleGroup.Name)
// Test compression by inspecting the response Headers
req, err := http.NewRequest("GET", fmt.Sprintf("http://%s/api/prom/rules", ruler.HTTPEndpoint()), nil)
require.NoError(t, err)
req.Header.Set("X-Scope-OrgID", "user-1")
req.Header.Set("Accept-Encoding", "gzip")
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
// Execute HTTP request
res, err := http.DefaultClient.Do(req.WithContext(ctx))
require.NoError(t, err)
defer res.Body.Close()
// We assert on the Vary header as the minimum response size for enabling compression is 1500 bytes.
// This is enough to know whenever the handler for compression is enabled or not.
require.Equal(t, "Accept-Encoding", res.Header.Get("Vary"))
// Delete the set rule groups
require.NoError(t, c.DeleteRuleGroup(namespaceOne, ruleGroup.Name))
require.NoError(t, c.DeleteRuleNamespace(namespaceTwo))
// Get the rule group and ensure it returns a 404
resp, err := c.GetRuleGroup(namespaceOne, ruleGroup.Name)
require.NoError(t, err)
defer resp.Body.Close()
require.Equal(t, http.StatusNotFound, resp.StatusCode)
// Wait until the users manager has been terminated
require.NoError(t, ruler.WaitSumMetrics(e2e.Equals(0), "cortex_ruler_managers_total"))
// Check to ensure the rule groups are no longer active
_, err = c.GetRuleGroups()
require.Error(t, err)
// Ensure no service-specific metrics prefix is used by the wrong service.
assertServiceMetricsPrefixes(t, Ruler, ruler)
})
}
}
func TestRulerAPISingleBinary(t *testing.T) {
s, err := e2e.NewScenario(networkName)
require.NoError(t, err)
defer s.Close()
namespace := "ns"
user := "fake"
configOverrides := map[string]string{
"-ruler-storage.local.directory": filepath.Join(e2e.ContainerSharedDir, "ruler_configs"),
"-ruler.poll-interval": "2s",
"-ruler.rule-path": filepath.Join(e2e.ContainerSharedDir, "rule_tmp/"),
// alert manager
"-alertmanager.web.external-url": "http://localhost/alertmanager",
"-alertmanager-storage.backend": "local",
"-alertmanager-storage.local.path": filepath.Join(e2e.ContainerSharedDir, "alertmanager_configs"),
}
// make alert manager config dir
require.NoError(t, writeFileToSharedDir(s, "alertmanager_configs", []byte{}))
// Start Cortex components.
require.NoError(t, copyFileToSharedDir(s, "docs/configuration/single-process-config-blocks-local.yaml", cortexConfigFile))
require.NoError(t, writeFileToSharedDir(s, filepath.Join("ruler_configs", user, namespace), []byte(cortexRulerUserConfigYaml)))
cortex := e2ecortex.NewSingleBinaryWithConfigFile("cortex", cortexConfigFile, configOverrides, "", 9009, 9095)
require.NoError(t, s.StartAndWaitReady(cortex))
// Create a client with the ruler address configured
c, err := e2ecortex.NewClient("", "", "", cortex.HTTPEndpoint(), "")
require.NoError(t, err)
// Wait until the user manager is created
require.NoError(t, cortex.WaitSumMetrics(e2e.Equals(1), "cortex_ruler_managers_total"))
// Check to ensure the rules running in the cortex match what was set
rgs, err := c.GetRuleGroups()
require.NoError(t, err)
retrievedNamespace, exists := rgs[namespace]
require.True(t, exists)
require.Len(t, retrievedNamespace, 1)
require.Equal(t, retrievedNamespace[0].Name, "rule")
// Check to make sure prometheus engine metrics are available for both engine types
require.NoError(t, cortex.WaitSumMetricsWithOptions(e2e.Equals(0), []string{"prometheus_engine_queries"}, e2e.WithLabelMatchers(
labels.MustNewMatcher(labels.MatchEqual, "engine", "querier"))))
require.NoError(t, cortex.WaitSumMetricsWithOptions(e2e.Equals(0), []string{"prometheus_engine_queries"}, e2e.WithLabelMatchers(
labels.MustNewMatcher(labels.MatchEqual, "engine", "ruler"))))
// Test Cleanup and Restart
// Stop the running cortex
require.NoError(t, cortex.Stop())
// Restart Cortex with identical configs
cortexRestarted := e2ecortex.NewSingleBinaryWithConfigFile("cortex-restarted", cortexConfigFile, configOverrides, "", 9009, 9095)
require.NoError(t, s.StartAndWaitReady(cortexRestarted))
// Wait until the user manager is created
require.NoError(t, cortexRestarted.WaitSumMetrics(e2e.Equals(1), "cortex_ruler_managers_total"))
}
func TestRulerSharding(t *testing.T) {
const numRulesGroups = 100
s, err := e2e.NewScenario(networkName)
require.NoError(t, err)
defer s.Close()
// Generate multiple rule groups, with 1 rule each.
ruleGroups := make([]rulefmt.RuleGroup, numRulesGroups)
expectedNames := make([]string, numRulesGroups)
for i := 0; i < numRulesGroups; i++ {
var recordNode yaml.Node
var exprNode yaml.Node
recordNode.SetString(fmt.Sprintf("rule_%d", i))
exprNode.SetString(strconv.Itoa(i))
ruleName := fmt.Sprintf("test_%d", i)
expectedNames[i] = ruleName
ruleGroups[i] = rulefmt.RuleGroup{
Name: ruleName,
Interval: 60,
Rules: []rulefmt.RuleNode{{
Record: recordNode,
Expr: exprNode,
}},
}
}
// Start dependencies.
consul := e2edb.NewConsul()
minio := e2edb.NewMinio(9000, rulestoreBucketName)
require.NoError(t, s.StartAndWaitReady(consul, minio))
// Configure the ruler.
rulerFlags := mergeFlags(
BlocksStorageFlags(),
RulerFlags(),
RulerShardingFlags(consul.NetworkHTTPEndpoint()),
map[string]string{
// Since we're not going to run any rule, we don't need the
// store-gateway to be configured to a valid address.
"-querier.store-gateway-addresses": "localhost:12345",
// Enable the bucket index so we can skip the initial bucket scan.
"-blocks-storage.bucket-store.bucket-index.enabled": "true",
},
)
// Start rulers.
ruler1 := e2ecortex.NewRuler("ruler-1", consul.NetworkHTTPEndpoint(), rulerFlags, "")
ruler2 := e2ecortex.NewRuler("ruler-2", consul.NetworkHTTPEndpoint(), rulerFlags, "")
rulers := e2ecortex.NewCompositeCortexService(ruler1, ruler2)
require.NoError(t, s.StartAndWaitReady(ruler1, ruler2))
// Upload rule groups to one of the rulers.
c, err := e2ecortex.NewClient("", "", "", ruler1.HTTPEndpoint(), "user-1")
require.NoError(t, err)
for _, ruleGroup := range ruleGroups {
require.NoError(t, c.SetRuleGroup(ruleGroup, "test"))
}
// Wait until rulers have loaded all rules.
require.NoError(t, rulers.WaitSumMetricsWithOptions(e2e.Equals(numRulesGroups), []string{"cortex_prometheus_rule_group_rules"}, e2e.WaitMissingMetrics))
// Since rulers have loaded all rules, we expect that rules have been sharded
// between the two rulers.
require.NoError(t, ruler1.WaitSumMetrics(e2e.Less(numRulesGroups), "cortex_prometheus_rule_group_rules"))
require.NoError(t, ruler2.WaitSumMetrics(e2e.Less(numRulesGroups), "cortex_prometheus_rule_group_rules"))
// Even with rules sharded, we expect rulers to have the same cortex_ruler_rule_groups_in_store metric values
require.NoError(t, ruler1.WaitSumMetrics(e2e.Equals(numRulesGroups), "cortex_ruler_rule_groups_in_store"))
require.NoError(t, ruler2.WaitSumMetrics(e2e.Equals(numRulesGroups), "cortex_ruler_rule_groups_in_store"))
// Fetch the rules and ensure they match the configured ones.
actualGroups, _, err := c.GetPrometheusRules(e2ecortex.DefaultFilter)
require.NoError(t, err)
var actualNames []string
for _, group := range actualGroups {
actualNames = append(actualNames, group.Name)
}
assert.ElementsMatch(t, expectedNames, actualNames)
}
func TestRulerAPISharding(t *testing.T) {
testRulerAPIWithSharding(t, false)
}
func TestRulerAPIShardingWithAPIRulesBackupEnabled(t *testing.T) {
testRulerAPIWithSharding(t, true)
}
func testRulerAPIWithSharding(t *testing.T, enableRulesBackup bool) {
const numRulesGroups = 100
random := rand.New(rand.NewSource(time.Now().UnixNano()))
s, err := e2e.NewScenario(networkName)
require.NoError(t, err)
defer s.Close()
// Generate multiple rule groups, with 1 rule each.
ruleGroups := make([]rulefmt.RuleGroup, numRulesGroups)
expectedNames := make([]string, numRulesGroups)
alertCount := 0
evalInterval, _ := model.ParseDuration("1s")
for i := 0; i < numRulesGroups; i++ {
num := random.Intn(100)
var ruleNode yaml.Node
var exprNode yaml.Node
ruleNode.SetString(fmt.Sprintf("rule_%d", i))
exprNode.SetString(strconv.Itoa(i))
ruleName := fmt.Sprintf("test_%d", i)
expectedNames[i] = ruleName
if num%2 == 0 {
alertCount++
ruleGroups[i] = rulefmt.RuleGroup{
Name: ruleName,
Interval: evalInterval,
Rules: []rulefmt.RuleNode{{
Alert: ruleNode,
Expr: exprNode,
}},
}
} else {
ruleGroups[i] = rulefmt.RuleGroup{
Name: ruleName,
Interval: evalInterval,
Rules: []rulefmt.RuleNode{{
Record: ruleNode,
Expr: exprNode,
}},
}
}
}
// Start dependencies.
consul := e2edb.NewConsul()
minio := e2edb.NewMinio(9000, rulestoreBucketName)
require.NoError(t, s.StartAndWaitReady(consul, minio))
// Configure the ruler.
overrides := map[string]string{
// Since we're not going to run any rule, we don't need the
// store-gateway to be configured to a valid address.
"-querier.store-gateway-addresses": "localhost:12345",
// Enable the bucket index so we can skip the initial bucket scan.
"-blocks-storage.bucket-store.bucket-index.enabled": "true",
"-ruler.poll-interval": "5s",
}
if enableRulesBackup {
overrides["-ruler.ring.replication-factor"] = "3"
}
rulerFlags := mergeFlags(
BlocksStorageFlags(),
RulerFlags(),
RulerShardingFlags(consul.NetworkHTTPEndpoint()),
overrides,
)
// Start rulers.
ruler1 := e2ecortex.NewRuler("ruler-1", consul.NetworkHTTPEndpoint(), rulerFlags, "")
ruler2 := e2ecortex.NewRuler("ruler-2", consul.NetworkHTTPEndpoint(), rulerFlags, "")
ruler3 := e2ecortex.NewRuler("ruler-3", consul.NetworkHTTPEndpoint(), rulerFlags, "")
rulers := e2ecortex.NewCompositeCortexService(ruler1, ruler2, ruler3)
require.NoError(t, s.StartAndWaitReady(ruler1, ruler2, ruler3))
// Upload rule groups to one of the rulers.
c, err := e2ecortex.NewClient("", "", "", ruler1.HTTPEndpoint(), "user-1")
require.NoError(t, err)
namespaceNames := []string{"test1", "test2", "test3", "test4", "test5"}
namespaceNameCount := make([]int, 5)
nsRand := rand.New(rand.NewSource(time.Now().UnixNano()))
for _, ruleGroup := range ruleGroups {
index := nsRand.Intn(len(namespaceNames))
namespaceNameCount[index] = namespaceNameCount[index] + 1
require.NoError(t, c.SetRuleGroup(ruleGroup, namespaceNames[index]))
}
// Wait until rulers have loaded all rules.
require.NoError(t, rulers.WaitSumMetricsWithOptions(e2e.Equals(numRulesGroups), []string{"cortex_prometheus_rule_group_rules"}, e2e.WaitMissingMetrics))
// Since rulers have loaded all rules, we expect that rules have been sharded
// between the two rulers.
require.NoError(t, ruler1.WaitSumMetrics(e2e.Less(numRulesGroups), "cortex_prometheus_rule_group_rules"))
require.NoError(t, ruler2.WaitSumMetrics(e2e.Less(numRulesGroups), "cortex_prometheus_rule_group_rules"))
testCases := map[string]struct {
filter e2ecortex.RuleFilter
resultCheckFn func(assert.TestingT, []*ruler.RuleGroup)
}{
"Filter for Alert Rules": {
filter: e2ecortex.RuleFilter{
RuleType: "alert",
},
resultCheckFn: func(t assert.TestingT, ruleGroups []*ruler.RuleGroup) {
assert.Len(t, ruleGroups, alertCount, "Expected %d rules but got %d", alertCount, len(ruleGroups))
},
},
"Filter for Recording Rules": {
filter: e2ecortex.RuleFilter{
RuleType: "record",
},
resultCheckFn: func(t assert.TestingT, ruleGroups []*ruler.RuleGroup) {
assert.Len(t, ruleGroups, numRulesGroups-alertCount, "Expected %d rules but got %d", numRulesGroups-alertCount, len(ruleGroups))
},
},
"Filter by Namespace Name": {
filter: e2ecortex.RuleFilter{
Namespaces: []string{namespaceNames[2]},
},
resultCheckFn: func(t assert.TestingT, ruleGroups []*ruler.RuleGroup) {
assert.Len(t, ruleGroups, namespaceNameCount[2], "Expected %d rules but got %d", namespaceNameCount[2], len(ruleGroups))
},
},
"Filter by Namespace Name and Alert Rules": {
filter: e2ecortex.RuleFilter{
RuleType: "alert",
Namespaces: []string{namespaceNames[2]},
},
resultCheckFn: func(t assert.TestingT, ruleGroups []*ruler.RuleGroup) {
for _, ruleGroup := range ruleGroups {
rule := ruleGroup.Rules[0].(map[string]interface{})
ruleType := rule["type"]
assert.Equal(t, "alerting", ruleType, "Expected 'alerting' rule type but got %s", ruleType)
}
},
},
"Filter by Rule Names": {
filter: e2ecortex.RuleFilter{
RuleNames: []string{"rule_3", "rule_64", "rule_99"},
},
resultCheckFn: func(t assert.TestingT, ruleGroups []*ruler.RuleGroup) {
ruleNames := []string{}
for _, ruleGroup := range ruleGroups {
rule := ruleGroup.Rules[0].(map[string]interface{})
ruleName := rule["name"]
ruleNames = append(ruleNames, ruleName.(string))
}
assert.Len(t, ruleNames, 3, "Expected %d rules but got %d", 3, len(ruleNames))
},
},
"Exclude Alerts": {
filter: e2ecortex.RuleFilter{
ExcludeAlerts: "true",
},
resultCheckFn: func(t assert.TestingT, ruleGroups []*ruler.RuleGroup) {
alertsCount := 0
for _, ruleGroup := range ruleGroups {
for _, rule := range ruleGroup.Rules {
r := rule.(map[string]interface{})
if v, OK := r["alerts"]; OK {
alerts := v.([]interface{})
alertsCount = alertsCount + len(alerts)
}
}
}
assert.Equal(t, 0, alertsCount, "Expected 0 alerts but got %d", alertsCount)
},
},
"Include Alerts": {
filter: e2ecortex.RuleFilter{
ExcludeAlerts: "false",
},
resultCheckFn: func(t assert.TestingT, ruleGroups []*ruler.RuleGroup) {
alertsCount := 0
for _, ruleGroup := range ruleGroups {
for _, rule := range ruleGroup.Rules {
r := rule.(map[string]interface{})
if v, OK := r["alerts"]; OK {
alerts := v.([]interface{})
alertsCount = alertsCount + len(alerts)
}
}
}
assert.Greater(t, alertsCount, 0, "Expected greater than 0 alerts but got %d", alertsCount)
},
},
}
// For each test case, fetch the rules with configured filters, and ensure the results match.
if enableRulesBackup {
err := ruler2.Kill() // if rules backup is enabled the APIs should be able to handle a ruler going down
require.NoError(t, err)
}
for name, tc := range testCases {
t.Run(name, func(t *testing.T) {
actualGroups, _, err := c.GetPrometheusRules(tc.filter)
require.NoError(t, err)
tc.resultCheckFn(t, actualGroups)
})
}
}
func TestRulesPaginationAPISharding(t *testing.T) {
testRulesPaginationAPIWithSharding(t, false)
}
func TestRulesPaginationAPIShardingWithAPIRulesBackupEnabled(t *testing.T) {
testRulesPaginationAPIWithSharding(t, true)
}
func testRulesPaginationAPIWithSharding(t *testing.T, enableRulesBackup bool) {
const numRulesGroups = 100
random := rand.New(rand.NewSource(time.Now().UnixNano()))
s, err := e2e.NewScenario(networkName)
require.NoError(t, err)
defer s.Close()
// Generate multiple rule groups, with 1 rule each.
ruleGroups := make([]rulefmt.RuleGroup, numRulesGroups)
expectedNames := make([]string, numRulesGroups)
alertCount := 0
evalInterval, _ := model.ParseDuration("1s")
for i := 0; i < numRulesGroups; i++ {
num := random.Intn(100)
var ruleNode yaml.Node
var exprNode yaml.Node
ruleNode.SetString(fmt.Sprintf("rule_%d", i))
exprNode.SetString(strconv.Itoa(i))
ruleName := fmt.Sprintf("test_%d", i)
expectedNames[i] = ruleName
if num%2 == 0 {
alertCount++
ruleGroups[i] = rulefmt.RuleGroup{
Name: ruleName,
Interval: evalInterval,
Rules: []rulefmt.RuleNode{{
Alert: ruleNode,
Expr: exprNode,
}},
}
} else {
ruleGroups[i] = rulefmt.RuleGroup{
Name: ruleName,
Interval: evalInterval,
Rules: []rulefmt.RuleNode{{
Record: ruleNode,
Expr: exprNode,
}},
}
}
}
// Start dependencies.
consul := e2edb.NewConsul()
minio := e2edb.NewMinio(9000, rulestoreBucketName)
require.NoError(t, s.StartAndWaitReady(consul, minio))
// Configure the ruler.
overrides := map[string]string{
// Since we're not going to run any rule, we don't need the
// store-gateway to be configured to a valid address.
"-querier.store-gateway-addresses": "localhost:12345",
// Enable the bucket index so we can skip the initial bucket scan.
"-blocks-storage.bucket-store.bucket-index.enabled": "true",
"-ruler.poll-interval": "5s",
}
if enableRulesBackup {
overrides["-ruler.ring.replication-factor"] = "2"
}
rulerFlags := mergeFlags(
BlocksStorageFlags(),
RulerFlags(),
RulerShardingFlags(consul.NetworkHTTPEndpoint()),
overrides,
)
// Start rulers.
ruler1 := e2ecortex.NewRuler("ruler-1", consul.NetworkHTTPEndpoint(), rulerFlags, "")
ruler2 := e2ecortex.NewRuler("ruler-2", consul.NetworkHTTPEndpoint(), rulerFlags, "")
ruler3 := e2ecortex.NewRuler("ruler-3", consul.NetworkHTTPEndpoint(), rulerFlags, "")
rulers := e2ecortex.NewCompositeCortexService(ruler1, ruler2, ruler3)
require.NoError(t, s.StartAndWaitReady(ruler1, ruler2, ruler3))
// Upload rule groups to one of the rulers.
c, err := e2ecortex.NewClient("", "", "", ruler1.HTTPEndpoint(), "user-1")
require.NoError(t, err)
namespaceNames := []string{"test1", "test2", "test3", "test4", "test5"}
namespaceNameCount := make([]int, len(namespaceNames))
nsRand := rand.New(rand.NewSource(time.Now().UnixNano()))
ruleGroupToNSMap := map[string]string{}
for _, ruleGroup := range ruleGroups {
index := nsRand.Intn(len(namespaceNames))
namespaceNameCount[index] = namespaceNameCount[index] + 1
require.NoError(t, c.SetRuleGroup(ruleGroup, namespaceNames[index]))
ruleGroupToNSMap[ruleGroup.Name] = namespaceNames[index]
}
// Wait until rulers have loaded all rules.
require.NoError(t, rulers.WaitSumMetricsWithOptions(e2e.Equals(numRulesGroups), []string{"cortex_prometheus_rule_group_rules"}, e2e.WaitMissingMetrics))
// Since rulers have loaded all rules, we expect that rules have been sharded
// between the two rulers.
require.NoError(t, ruler1.WaitSumMetrics(e2e.Less(numRulesGroups), "cortex_prometheus_rule_group_rules"))
require.NoError(t, ruler2.WaitSumMetrics(e2e.Less(numRulesGroups), "cortex_prometheus_rule_group_rules"))
testCases := map[string]struct {
filter e2ecortex.RuleFilter
resultCheckFn func(assert.TestingT, []*ruler.RuleGroup, string, int)
iterations int
}{
"List Rule Groups - Equal number of rule groups per page": {
filter: e2ecortex.RuleFilter{
MaxRuleGroup: 20,
},
resultCheckFn: func(t assert.TestingT, resultGroups []*ruler.RuleGroup, token string, iteration int) {
assert.Len(t, resultGroups, 20, "Expected %d rules but got %d", 20, len(resultGroups))
if iteration < 4 {
assert.NotEmpty(t, token)
return
}
assert.Empty(t, token)
},
iterations: 5,
},
"List Rule Groups - Last page unequal": {
filter: e2ecortex.RuleFilter{
MaxRuleGroup: 72,
},
resultCheckFn: func(t assert.TestingT, resultGroups []*ruler.RuleGroup, token string, iteration int) {
if iteration == 0 {
assert.Len(t, resultGroups, 72, "Expected %d rules but got %d", 72, len(resultGroups))
assert.NotEmpty(t, token)
return
}
assert.Len(t, resultGroups, 28, "Expected %d rules but got %d", 28, len(resultGroups))
assert.Empty(t, token)
},
iterations: 2,
},
"List all rule groups": {
filter: e2ecortex.RuleFilter{},
resultCheckFn: func(t assert.TestingT, resultGroups []*ruler.RuleGroup, token string, iteration int) {
assert.Len(t, resultGroups, 100, "Expected %d rules but got %d", 100, len(resultGroups))
assert.Empty(t, token)
},
iterations: 1,
},
"List all rule groups - Max Rule Groups > Actual": {
filter: e2ecortex.RuleFilter{
MaxRuleGroup: 200,
},
resultCheckFn: func(t assert.TestingT, resultGroups []*ruler.RuleGroup, token string, iteration int) {
assert.Len(t, resultGroups, 100, "Expected %d rules but got %d", 100, len(resultGroups))
assert.Empty(t, token)
},
iterations: 1,
},
}
// For each test case, fetch the rules with configured filters, and ensure the results match.
if enableRulesBackup {
err := ruler2.Kill() // if rules backup is enabled the APIs should be able to handle a ruler going down
require.NoError(t, err)
}
for name, tc := range testCases {
t.Run(name, func(t *testing.T) {
filter := tc.filter
for i := 0; i < tc.iterations; i++ {
actualGroups, token, err := c.GetPrometheusRules(filter)
require.NoError(t, err)
tc.resultCheckFn(t, actualGroups, token, i)
filter.NextToken = token
}
})
}
}
func TestRulesPaginationAPIWithShardingAndNextToken(t *testing.T) {
const numRulesGroups = 100
random := rand.New(rand.NewSource(time.Now().UnixNano()))
s, err := e2e.NewScenario(networkName)
require.NoError(t, err)
defer s.Close()
// Generate multiple rule groups, with 1 rule each.
ruleGroups := make([]rulefmt.RuleGroup, numRulesGroups)
expectedNames := make([]string, numRulesGroups)
alertCount := 0
evalInterval, _ := model.ParseDuration("1s")
for i := 0; i < numRulesGroups; i++ {
num := random.Intn(100)
var ruleNode yaml.Node
var exprNode yaml.Node
ruleNode.SetString(fmt.Sprintf("rule_%d", i))
exprNode.SetString(strconv.Itoa(i))
ruleName := fmt.Sprintf("test_%d", i)
expectedNames[i] = ruleName
if num%2 == 0 {
alertCount++
ruleGroups[i] = rulefmt.RuleGroup{
Name: ruleName,
Interval: evalInterval,
Rules: []rulefmt.RuleNode{{
Alert: ruleNode,
Expr: exprNode,
}},
}
} else {
ruleGroups[i] = rulefmt.RuleGroup{
Name: ruleName,
Interval: evalInterval,
Rules: []rulefmt.RuleNode{{
Record: ruleNode,
Expr: exprNode,
}},
}
}
}
// Start dependencies.
consul := e2edb.NewConsul()
minio := e2edb.NewMinio(9000, rulestoreBucketName)
require.NoError(t, s.StartAndWaitReady(consul, minio))
// Configure the ruler.
overrides := map[string]string{
// Since we're not going to run any rule, we don't need the
// store-gateway to be configured to a valid address.
"-querier.store-gateway-addresses": "localhost:12345",
// Enable the bucket index so we can skip the initial bucket scan.
"-blocks-storage.bucket-store.bucket-index.enabled": "true",
"-ruler.poll-interval": "5s",
}
overrides["-ruler.ring.replication-factor"] = "2"
rulerFlags := mergeFlags(
BlocksStorageFlags(),
RulerFlags(),
RulerShardingFlags(consul.NetworkHTTPEndpoint()),
overrides,
)
// Start rulers.
ruler1 := e2ecortex.NewRuler("ruler-1", consul.NetworkHTTPEndpoint(), rulerFlags, "")
ruler2 := e2ecortex.NewRuler("ruler-2", consul.NetworkHTTPEndpoint(), rulerFlags, "")
ruler3 := e2ecortex.NewRuler("ruler-3", consul.NetworkHTTPEndpoint(), rulerFlags, "")
rulers := e2ecortex.NewCompositeCortexService(ruler1, ruler2, ruler3)
require.NoError(t, s.StartAndWaitReady(ruler1, ruler2, ruler3))
// Upload rule groups to one of the rulers.
c, err := e2ecortex.NewClient("", "", "", ruler1.HTTPEndpoint(), "user-1")
require.NoError(t, err)
namespaceNames := []string{"test1", "test2", "test3", "test4", "test5"}
namespaceNameCount := make([]int, len(namespaceNames))
nsRand := rand.New(rand.NewSource(time.Now().UnixNano()))
groupStateDescs := make([]*ruler.GroupStateDesc, len(ruleGroups))
for i, ruleGroup := range ruleGroups {
index := nsRand.Intn(len(namespaceNames))
namespaceNameCount[index] = namespaceNameCount[index] + 1
require.NoError(t, c.SetRuleGroup(ruleGroup, namespaceNames[index]))
groupStateDescs[i] = &ruler.GroupStateDesc{
Group: &rulespb.RuleGroupDesc{
Name: ruleGroup.Name,
Namespace: namespaceNames[index],
},
}
}
sort.Sort(ruler.PaginatedGroupStates(groupStateDescs))
// Wait until rulers have loaded all rules.
require.NoError(t, rulers.WaitSumMetricsWithOptions(e2e.Equals(numRulesGroups), []string{"cortex_prometheus_rule_group_rules"}, e2e.WaitMissingMetrics))
// Since rulers have loaded all rules, we expect that rules have been sharded
// between the two rulers.
require.NoError(t, ruler1.WaitSumMetrics(e2e.Less(numRulesGroups), "cortex_prometheus_rule_group_rules"))
require.NoError(t, ruler2.WaitSumMetrics(e2e.Less(numRulesGroups), "cortex_prometheus_rule_group_rules"))
testCases := map[string]struct {
filter e2ecortex.RuleFilter
resultCheckFn func(assert.TestingT, []*ruler.RuleGroup, string, int)
iterations int
tokens []string
}{
"List Rule Groups - Equal number of rule groups per page": {
filter: e2ecortex.RuleFilter{
MaxRuleGroup: 20,
},
resultCheckFn: func(t assert.TestingT, resultGroups []*ruler.RuleGroup, token string, iteration int) {
assert.Len(t, resultGroups, 20, "Expected %d rules but got %d", 20, len(resultGroups))
},
iterations: 5,
tokens: []string{
ruler.GetRuleGroupNextToken(groupStateDescs[19].Group.Namespace, groupStateDescs[19].Group.Name),
ruler.GetRuleGroupNextToken(groupStateDescs[39].Group.Namespace, groupStateDescs[39].Group.Name),
ruler.GetRuleGroupNextToken(groupStateDescs[59].Group.Namespace, groupStateDescs[59].Group.Name),
ruler.GetRuleGroupNextToken(groupStateDescs[79].Group.Namespace, groupStateDescs[79].Group.Name),
"",
},
},
"List Rule Groups - Retrieve page 2 and 3": {
filter: e2ecortex.RuleFilter{
MaxRuleGroup: 20,
NextToken: ruler.GetRuleGroupNextToken(groupStateDescs[19].Group.Namespace, groupStateDescs[19].Group.Name),
},
resultCheckFn: func(t assert.TestingT, resultGroups []*ruler.RuleGroup, token string, iteration int) {
assert.Len(t, resultGroups, 20, "Expected %d rules but got %d", 20, len(resultGroups))
},
iterations: 2,
tokens: []string{
ruler.GetRuleGroupNextToken(groupStateDescs[39].Group.Namespace, groupStateDescs[39].Group.Name),
ruler.GetRuleGroupNextToken(groupStateDescs[59].Group.Namespace, groupStateDescs[59].Group.Name),
},
},
}
// For each test case, fetch the rules with configured filters, and ensure the results match.
for name, tc := range testCases {
t.Run(name, func(t *testing.T) {
filter := tc.filter
for i := 0; i < tc.iterations; i++ {
actualGroups, token, err := c.GetPrometheusRules(filter)
require.NoError(t, err)
tc.resultCheckFn(t, actualGroups, token, i)
require.Equal(t, tc.tokens[i], token)
filter.NextToken = token
}
})
}
}
func TestRulesAPIWithNoRules(t *testing.T) {
s, err := e2e.NewScenario(networkName)
require.NoError(t, err)
defer s.Close()
// Start dependencies.
consul := e2edb.NewConsul()
minio := e2edb.NewMinio(9000, rulestoreBucketName)
require.NoError(t, s.StartAndWaitReady(consul, minio))
// Configure the ruler.
overrides := map[string]string{
// Since we're not going to run any rule, we don't need the
// store-gateway to be configured to a valid address.
"-querier.store-gateway-addresses": "localhost:12345",
// Enable the bucket index so we can skip the initial bucket scan.
"-blocks-storage.bucket-store.bucket-index.enabled": "true",
"-ruler.poll-interval": "5s",
}
rulerFlags := mergeFlags(
BlocksStorageFlags(),
RulerFlags(),
RulerShardingFlags(consul.NetworkHTTPEndpoint()),
overrides,
)
// Start rulers.
ruler1 := e2ecortex.NewRuler("ruler-1", consul.NetworkHTTPEndpoint(), rulerFlags, "")
ruler2 := e2ecortex.NewRuler("ruler-2", consul.NetworkHTTPEndpoint(), rulerFlags, "")
ruler3 := e2ecortex.NewRuler("ruler-3", consul.NetworkHTTPEndpoint(), rulerFlags, "")
require.NoError(t, s.StartAndWaitReady(ruler1, ruler2, ruler3))
time.Sleep(5 * time.Second)
c, err := e2ecortex.NewClient("", "", "", ruler1.HTTPEndpoint(), "user-1")
require.NoError(t, err)
testCases := map[string]struct {
filter e2ecortex.RuleFilter
}{
"List Rule Groups With Filter": {
filter: e2ecortex.RuleFilter{
MaxRuleGroup: 20,
},
},
"List All Rule Groups With No Filter": {
filter: e2ecortex.RuleFilter{},
},
}
for name, tc := range testCases {
t.Run(name, func(t *testing.T) {
actualGroups, token, err := c.GetPrometheusRules(tc.filter)
require.NoError(t, err)
assert.Empty(t, actualGroups)
assert.Empty(t, token)
})
}
}
func TestRulerAlertmanager(t *testing.T) {
var namespaceOne = "test_/encoded_+namespace/?"
ruleGroup := createTestRuleGroup(t)
s, err := e2e.NewScenario(networkName)
require.NoError(t, err)
defer s.Close()
// Start dependencies.
consul := e2edb.NewConsul()
minio := e2edb.NewMinio(9000, rulestoreBucketName, bucketName)
require.NoError(t, s.StartAndWaitReady(consul, minio))
// Have at least one alertmanager configuration.
require.NoError(t, writeFileToSharedDir(s, "alertmanager_configs/user-1.yaml", []byte(cortexAlertmanagerUserConfigYaml)))
// Start Alertmanagers.
amFlags := mergeFlags(AlertmanagerFlags(), AlertmanagerLocalFlags())
am1 := e2ecortex.NewAlertmanager("alertmanager1", amFlags, "")
am2 := e2ecortex.NewAlertmanager("alertmanager2", amFlags, "")
require.NoError(t, s.StartAndWaitReady(am1, am2))
am1URL := "http://" + am1.HTTPEndpoint()
am2URL := "http://" + am2.HTTPEndpoint()
// Connect the ruler to Alertmanagers
configOverrides := map[string]string{
"-ruler.alertmanager-url": strings.Join([]string{am1URL, am2URL}, ","),
}
// Start Ruler.
ruler := e2ecortex.NewRuler("ruler", consul.NetworkHTTPEndpoint(), mergeFlags(BlocksStorageFlags(), RulerFlags(), configOverrides), "")
require.NoError(t, s.StartAndWaitReady(ruler))
// Create a client with the ruler address configured
c, err := e2ecortex.NewClient("", "", "", ruler.HTTPEndpoint(), "user-1")
require.NoError(t, err)
// Set the rule group into the ruler
require.NoError(t, c.SetRuleGroup(ruleGroup, namespaceOne))
// Wait until the user manager is created
require.NoError(t, ruler.WaitSumMetrics(e2e.Equals(1), "cortex_ruler_managers_total"))
// Wait until we've discovered the alertmanagers.
require.NoError(t, ruler.WaitSumMetricsWithOptions(e2e.Equals(2), []string{"cortex_prometheus_notifications_alertmanagers_discovered"}, e2e.WaitMissingMetrics))
}
func TestRulerAlertmanagerTLS(t *testing.T) {
var namespaceOne = "test_/encoded_+namespace/?"
ruleGroup := createTestRuleGroup(t)
s, err := e2e.NewScenario(networkName)
require.NoError(t, err)
defer s.Close()
// Start dependencies.
consul := e2edb.NewConsul()
minio := e2edb.NewMinio(9000, rulestoreBucketName, bucketName)
require.NoError(t, s.StartAndWaitReady(consul, minio))
// set the ca
cert := ca.New("Ruler/Alertmanager Test")
// Ensure the entire path of directories exist.
require.NoError(t, os.MkdirAll(filepath.Join(s.SharedDir(), "certs"), os.ModePerm))
require.NoError(t, cert.WriteCACertificate(filepath.Join(s.SharedDir(), caCertFile)))
// server certificate
require.NoError(t, cert.WriteCertificate(
&x509.Certificate{
Subject: pkix.Name{CommonName: "client"},
ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageClientAuth},
},
filepath.Join(s.SharedDir(), clientCertFile),
filepath.Join(s.SharedDir(), clientKeyFile),
))
require.NoError(t, cert.WriteCertificate(
&x509.Certificate{
Subject: pkix.Name{CommonName: "server"},
DNSNames: []string{"ruler.alertmanager-client"},
ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
},
filepath.Join(s.SharedDir(), serverCertFile),
filepath.Join(s.SharedDir(), serverKeyFile),
))
// Have at least one alertmanager configuration.
require.NoError(t, writeFileToSharedDir(s, "alertmanager_configs/user-1.yaml", []byte(cortexAlertmanagerUserConfigYaml)))
// Start Alertmanagers.
amFlags := mergeFlags(
AlertmanagerFlags(),
AlertmanagerLocalFlags(),
getServerHTTPTLSFlags(),
)