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prometheus/config/config_test.go

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// Copyright 2015 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package config
import (
"encoding/json"
"io/ioutil"
"net/url"
"reflect"
"strings"
"testing"
"time"
"github.com/prometheus/common/model"
"gopkg.in/yaml.v2"
)
func mustParseURL(u string) *URL {
parsed, err := url.Parse(u)
if err != nil {
panic(err)
}
return &URL{URL: parsed}
}
var expectedConf = &Config{
GlobalConfig: GlobalConfig{
ScrapeInterval: model.Duration(15 * time.Second),
ScrapeTimeout: DefaultGlobalConfig.ScrapeTimeout,
EvaluationInterval: model.Duration(30 * time.Second),
ExternalLabels: model.LabelSet{
"monitor": "codelab",
"foo": "bar",
},
},
RuleFiles: []string{
"testdata/first.rules",
"/absolute/second.rules",
"testdata/my/*.rules",
},
RemoteWriteConfigs: []*RemoteWriteConfig{
{
URL: mustParseURL("http://remote1/push"),
RemoteTimeout: model.Duration(30 * time.Second),
WriteRelabelConfigs: []*RelabelConfig{
{
SourceLabels: model.LabelNames{"__name__"},
Separator: ";",
Regex: MustNewRegexp("expensive.*"),
Replacement: "$1",
Action: RelabelDrop,
},
},
},
{
URL: mustParseURL("http://remote2/push"),
RemoteTimeout: model.Duration(30 * time.Second),
},
},
ScrapeConfigs: []*ScrapeConfig{
{
JobName: "prometheus",
HonorLabels: true,
ScrapeInterval: model.Duration(15 * time.Second),
ScrapeTimeout: DefaultGlobalConfig.ScrapeTimeout,
MetricsPath: DefaultScrapeConfig.MetricsPath,
Scheme: DefaultScrapeConfig.Scheme,
HTTPClientConfig: HTTPClientConfig{
BearerTokenFile: "testdata/valid_token_file",
},
ServiceDiscoveryConfig: ServiceDiscoveryConfig{
StaticConfigs: []*TargetGroup{
{
Targets: []model.LabelSet{
{model.AddressLabel: "localhost:9090"},
{model.AddressLabel: "localhost:9191"},
},
Labels: model.LabelSet{
"my": "label",
"your": "label",
},
},
},
FileSDConfigs: []*FileSDConfig{
{
Files: []string{"foo/*.slow.json", "foo/*.slow.yml", "single/file.yml"},
RefreshInterval: model.Duration(10 * time.Minute),
},
{
Files: []string{"bar/*.yaml"},
RefreshInterval: model.Duration(5 * time.Minute),
},
},
},
RelabelConfigs: []*RelabelConfig{
{
SourceLabels: model.LabelNames{"job", "__meta_dns_name"},
TargetLabel: "job",
Separator: ";",
Regex: MustNewRegexp("(.*)some-[regex]"),
Replacement: "foo-${1}",
Action: RelabelReplace,
}, {
SourceLabels: model.LabelNames{"abc"},
TargetLabel: "cde",
Separator: ";",
Regex: DefaultRelabelConfig.Regex,
Replacement: DefaultRelabelConfig.Replacement,
Action: RelabelReplace,
}, {
TargetLabel: "abc",
Separator: ";",
Regex: DefaultRelabelConfig.Regex,
Replacement: "static",
Action: RelabelReplace,
}, {
TargetLabel: "abc",
Separator: ";",
Regex: MustNewRegexp(""),
Replacement: "static",
Action: RelabelReplace,
},
},
},
{
JobName: "service-x",
ScrapeInterval: model.Duration(50 * time.Second),
ScrapeTimeout: model.Duration(5 * time.Second),
SampleLimit: 1000,
HTTPClientConfig: HTTPClientConfig{
BasicAuth: &BasicAuth{
Username: "admin_name",
Password: "admin_password",
},
},
MetricsPath: "/my_path",
Scheme: "https",
ServiceDiscoveryConfig: ServiceDiscoveryConfig{
DNSSDConfigs: []*DNSSDConfig{
{
Names: []string{
"first.dns.address.domain.com",
"second.dns.address.domain.com",
},
RefreshInterval: model.Duration(15 * time.Second),
Type: "SRV",
},
{
Names: []string{
"first.dns.address.domain.com",
},
RefreshInterval: model.Duration(30 * time.Second),
Type: "SRV",
},
},
},
RelabelConfigs: []*RelabelConfig{
{
SourceLabels: model.LabelNames{"job"},
Regex: MustNewRegexp("(.*)some-[regex]"),
Separator: ";",
Replacement: DefaultRelabelConfig.Replacement,
Action: RelabelDrop,
},
{
SourceLabels: model.LabelNames{"__address__"},
TargetLabel: "__tmp_hash",
Regex: DefaultRelabelConfig.Regex,
Replacement: DefaultRelabelConfig.Replacement,
Modulus: 8,
Separator: ";",
Action: RelabelHashMod,
},
{
SourceLabels: model.LabelNames{"__tmp_hash"},
Regex: MustNewRegexp("1"),
Separator: ";",
Replacement: DefaultRelabelConfig.Replacement,
Action: RelabelKeep,
},
{
Regex: MustNewRegexp("1"),
Separator: ";",
Replacement: DefaultRelabelConfig.Replacement,
Action: RelabelLabelMap,
},
{
Regex: MustNewRegexp("d"),
Separator: ";",
Replacement: DefaultRelabelConfig.Replacement,
Action: RelabelLabelDrop,
},
{
Regex: MustNewRegexp("k"),
Separator: ";",
Replacement: DefaultRelabelConfig.Replacement,
Action: RelabelLabelKeep,
},
},
MetricRelabelConfigs: []*RelabelConfig{
{
SourceLabels: model.LabelNames{"__name__"},
Regex: MustNewRegexp("expensive_metric.*"),
Separator: ";",
Replacement: DefaultRelabelConfig.Replacement,
Action: RelabelDrop,
},
},
},
{
JobName: "service-y",
ScrapeInterval: model.Duration(15 * time.Second),
ScrapeTimeout: DefaultGlobalConfig.ScrapeTimeout,
MetricsPath: DefaultScrapeConfig.MetricsPath,
Scheme: DefaultScrapeConfig.Scheme,
ServiceDiscoveryConfig: ServiceDiscoveryConfig{
ConsulSDConfigs: []*ConsulSDConfig{
{
Server: "localhost:1234",
Services: []string{"nginx", "cache", "mysql"},
TagSeparator: DefaultConsulSDConfig.TagSeparator,
Scheme: DefaultConsulSDConfig.Scheme,
},
},
},
RelabelConfigs: []*RelabelConfig{
{
SourceLabels: model.LabelNames{"__meta_sd_consul_tags"},
Regex: MustNewRegexp("label:([^=]+)=([^,]+)"),
Separator: ",",
TargetLabel: "${1}",
Replacement: "${2}",
Action: RelabelReplace,
},
},
},
{
JobName: "service-z",
ScrapeInterval: model.Duration(15 * time.Second),
ScrapeTimeout: model.Duration(10 * time.Second),
MetricsPath: "/metrics",
Scheme: "http",
HTTPClientConfig: HTTPClientConfig{
TLSConfig: TLSConfig{
CertFile: "testdata/valid_cert_file",
KeyFile: "testdata/valid_key_file",
},
BearerToken: "avalidtoken",
},
},
{
JobName: "service-kubernetes",
ScrapeInterval: model.Duration(15 * time.Second),
ScrapeTimeout: DefaultGlobalConfig.ScrapeTimeout,
MetricsPath: DefaultScrapeConfig.MetricsPath,
Scheme: DefaultScrapeConfig.Scheme,
ServiceDiscoveryConfig: ServiceDiscoveryConfig{
KubernetesSDConfigs: []*KubernetesSDConfig{
{
APIServer: kubernetesSDHostURL(),
Role: KubernetesRoleEndpoint,
BasicAuth: &BasicAuth{
Username: "myusername",
Password: "mypassword",
},
},
},
},
},
{
JobName: "service-marathon",
ScrapeInterval: model.Duration(15 * time.Second),
ScrapeTimeout: DefaultGlobalConfig.ScrapeTimeout,
MetricsPath: DefaultScrapeConfig.MetricsPath,
Scheme: DefaultScrapeConfig.Scheme,
ServiceDiscoveryConfig: ServiceDiscoveryConfig{
MarathonSDConfigs: []*MarathonSDConfig{
{
Servers: []string{
"https://marathon.example.com:443",
},
Timeout: model.Duration(30 * time.Second),
RefreshInterval: model.Duration(30 * time.Second),
TLSConfig: TLSConfig{
CertFile: "testdata/valid_cert_file",
KeyFile: "testdata/valid_key_file",
},
},
},
},
},
{
JobName: "service-ec2",
ScrapeInterval: model.Duration(15 * time.Second),
ScrapeTimeout: DefaultGlobalConfig.ScrapeTimeout,
MetricsPath: DefaultScrapeConfig.MetricsPath,
Scheme: DefaultScrapeConfig.Scheme,
ServiceDiscoveryConfig: ServiceDiscoveryConfig{
EC2SDConfigs: []*EC2SDConfig{
{
Region: "us-east-1",
AccessKey: "access",
SecretKey: "secret",
Profile: "profile",
RefreshInterval: model.Duration(60 * time.Second),
Port: 80,
},
},
},
},
{
JobName: "service-azure",
ScrapeInterval: model.Duration(15 * time.Second),
ScrapeTimeout: DefaultGlobalConfig.ScrapeTimeout,
MetricsPath: DefaultScrapeConfig.MetricsPath,
Scheme: DefaultScrapeConfig.Scheme,
ServiceDiscoveryConfig: ServiceDiscoveryConfig{
AzureSDConfigs: []*AzureSDConfig{
{
SubscriptionID: "11AAAA11-A11A-111A-A111-1111A1111A11",
TenantID: "BBBB222B-B2B2-2B22-B222-2BB2222BB2B2",
ClientID: "333333CC-3C33-3333-CCC3-33C3CCCCC33C",
ClientSecret: "nAdvAK2oBuVym4IXix",
RefreshInterval: model.Duration(5 * time.Minute),
Port: 9100,
},
},
},
},
{
JobName: "service-nerve",
ScrapeInterval: model.Duration(15 * time.Second),
ScrapeTimeout: DefaultGlobalConfig.ScrapeTimeout,
MetricsPath: DefaultScrapeConfig.MetricsPath,
Scheme: DefaultScrapeConfig.Scheme,
ServiceDiscoveryConfig: ServiceDiscoveryConfig{
NerveSDConfigs: []*NerveSDConfig{
{
Servers: []string{"localhost"},
Paths: []string{"/monitoring"},
Timeout: model.Duration(10 * time.Second),
},
},
},
},
{
JobName: "0123service-xxx",
ScrapeInterval: model.Duration(15 * time.Second),
ScrapeTimeout: DefaultGlobalConfig.ScrapeTimeout,
MetricsPath: DefaultScrapeConfig.MetricsPath,
Scheme: DefaultScrapeConfig.Scheme,
ServiceDiscoveryConfig: ServiceDiscoveryConfig{
StaticConfigs: []*TargetGroup{
{
Targets: []model.LabelSet{
{model.AddressLabel: "localhost:9090"},
},
},
},
},
},
{
JobName: "測試",
ScrapeInterval: model.Duration(15 * time.Second),
ScrapeTimeout: DefaultGlobalConfig.ScrapeTimeout,
MetricsPath: DefaultScrapeConfig.MetricsPath,
Scheme: DefaultScrapeConfig.Scheme,
ServiceDiscoveryConfig: ServiceDiscoveryConfig{
StaticConfigs: []*TargetGroup{
{
Targets: []model.LabelSet{
{model.AddressLabel: "localhost:9090"},
},
},
},
},
},
{
JobName: "service-triton",
ScrapeInterval: model.Duration(15 * time.Second),
ScrapeTimeout: DefaultGlobalConfig.ScrapeTimeout,
MetricsPath: DefaultScrapeConfig.MetricsPath,
Scheme: DefaultScrapeConfig.Scheme,
ServiceDiscoveryConfig: ServiceDiscoveryConfig{
TritonSDConfigs: []*TritonSDConfig{
{
Account: "testAccount",
DNSSuffix: "triton.example.com",
Endpoint: "triton.example.com",
Port: 9163,
RefreshInterval: model.Duration(60 * time.Second),
Version: 1,
TLSConfig: TLSConfig{
CertFile: "testdata/valid_cert_file",
KeyFile: "testdata/valid_key_file",
},
},
},
},
},
},
AlertingConfig: AlertingConfig{
AlertmanagerConfigs: []*AlertmanagerConfig{
{
Scheme: "https",
Timeout: 10 * time.Second,
ServiceDiscoveryConfig: ServiceDiscoveryConfig{
StaticConfigs: []*TargetGroup{
{
Targets: []model.LabelSet{
{model.AddressLabel: "1.2.3.4:9093"},
{model.AddressLabel: "1.2.3.5:9093"},
{model.AddressLabel: "1.2.3.6:9093"},
},
},
},
},
},
},
},
original: "",
}
func TestLoadConfig(t *testing.T) {
// Parse a valid file that sets a global scrape timeout. This tests whether parsing
// an overwritten default field in the global config permanently changes the default.
if _, err := LoadFile("testdata/global_timeout.good.yml"); err != nil {
t.Errorf("Error parsing %s: %s", "testdata/global_timeout.good.yml", err)
}
c, err := LoadFile("testdata/conf.good.yml")
if err != nil {
t.Fatalf("Error parsing %s: %s", "testdata/conf.good.yml", err)
}
bgot, err := yaml.Marshal(c)
if err != nil {
t.Fatalf("%s", err)
}
bexp, err := yaml.Marshal(expectedConf)
if err != nil {
t.Fatalf("%s", err)
}
expectedConf.original = c.original
if !reflect.DeepEqual(c, expectedConf) {
t.Fatalf("%s: unexpected config result: \n\n%s\n expected\n\n%s", "testdata/conf.good.yml", bgot, bexp)
}
// String method must not reveal authentication credentials.
s := c.String()
if strings.Contains(s, "admin_password") {
t.Fatalf("config's String method reveals authentication credentials.")
}
}
var expectedErrors = []struct {
filename string
errMsg string
}{
{
filename: "jobname.bad.yml",
errMsg: `job_name is empty`,
}, {
filename: "jobname_dup.bad.yml",
errMsg: `found multiple scrape configs with job name "prometheus"`,
}, {
filename: "scrape_interval.bad.yml",
errMsg: `scrape timeout greater than scrape interval`,
}, {
filename: "labelname.bad.yml",
errMsg: `"not$allowed" is not a valid label name`,
}, {
filename: "labelname2.bad.yml",
errMsg: `"not:allowed" is not a valid label name`,
}, {
filename: "regex.bad.yml",
errMsg: "error parsing regexp",
}, {
filename: "modulus_missing.bad.yml",
errMsg: "relabel configuration for hashmod requires non-zero modulus",
}, {
filename: "rules.bad.yml",
errMsg: "invalid rule file path",
}, {
filename: "unknown_attr.bad.yml",
errMsg: "unknown fields in scrape_config: consult_sd_configs",
}, {
filename: "bearertoken.bad.yml",
errMsg: "at most one of bearer_token & bearer_token_file must be configured",
}, {
filename: "bearertoken_basicauth.bad.yml",
errMsg: "at most one of basic_auth, bearer_token & bearer_token_file must be configured",
}, {
filename: "kubernetes_bearertoken.bad.yml",
errMsg: "at most one of bearer_token & bearer_token_file must be configured",
}, {
filename: "kubernetes_role.bad.yml",
errMsg: "role",
}, {
filename: "kubernetes_bearertoken_basicauth.bad.yml",
errMsg: "at most one of basic_auth, bearer_token & bearer_token_file must be configured",
}, {
filename: "marathon_no_servers.bad.yml",
errMsg: "Marathon SD config must contain at least one Marathon server",
}, {
filename: "url_in_targetgroup.bad.yml",
errMsg: "\"http://bad\" is not a valid hostname",
}, {
filename: "target_label_missing.bad.yml",
errMsg: "relabel configuration for replace action requires 'target_label' value",
}, {
filename: "target_label_hashmod_missing.bad.yml",
errMsg: "relabel configuration for hashmod action requires 'target_label' value",
},
}
func TestBadConfigs(t *testing.T) {
for _, ee := range expectedErrors {
_, err := LoadFile("testdata/" + ee.filename)
if err == nil {
t.Errorf("Expected error parsing %s but got none", ee.filename)
continue
}
if !strings.Contains(err.Error(), ee.errMsg) {
t.Errorf("Expected error for %s to contain %q but got: %s", ee.filename, ee.errMsg, err)
}
}
}
func TestBadStaticConfigs(t *testing.T) {
content, err := ioutil.ReadFile("testdata/static_config.bad.json")
if err != nil {
t.Fatal(err)
}
var tg TargetGroup
err = json.Unmarshal(content, &tg)
if err == nil {
t.Errorf("Expected unmarshal error but got none.")
}
}
func TestEmptyConfig(t *testing.T) {
c, err := Load("")
if err != nil {
t.Fatalf("Unexpected error parsing empty config file: %s", err)
}
exp := DefaultConfig
if !reflect.DeepEqual(*c, exp) {
t.Fatalf("want %v, got %v", exp, c)
}
}
func TestEmptyGlobalBlock(t *testing.T) {
c, err := Load("global:\n")
if err != nil {
t.Fatalf("Unexpected error parsing empty config file: %s", err)
}
exp := DefaultConfig
exp.original = "global:\n"
if !reflect.DeepEqual(*c, exp) {
t.Fatalf("want %v, got %v", exp, c)
}
}
func TestTargetLabelValidity(t *testing.T) {
tests := []struct {
str string
valid bool
}{
{"-label", false},
{"label", true},
{"label${1}", true},
{"${1}label", true},
{"${1}", true},
{"${1}label", true},
{"${", false},
{"$", false},
{"${}", false},
{"foo${", false},
{"$1", true},
{"asd$2asd", true},
{"-foo${1}bar-", false},
{"_${1}_", true},
{"foo${bar}foo", true},
}
for _, test := range tests {
if relabelTarget.Match([]byte(test.str)) != test.valid {
t.Fatalf("Expected %q to be %v", test.str, test.valid)
}
}
}
func kubernetesSDHostURL() URL {
tURL, _ := url.Parse("https://localhost:1234")
return URL{URL: tURL}
}
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