mirror of
https://github.com/prometheus/prometheus.git
synced 2024-11-13 17:14:05 -08:00
414 lines
11 KiB
Go
414 lines
11 KiB
Go
// Copyright 2015 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package config
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import (
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"encoding/json"
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"io/ioutil"
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"net/url"
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"reflect"
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"strings"
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"testing"
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"time"
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"github.com/prometheus/common/model"
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"gopkg.in/yaml.v2"
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)
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var expectedConf = &Config{
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GlobalConfig: GlobalConfig{
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ScrapeInterval: Duration(15 * time.Second),
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ScrapeTimeout: DefaultGlobalConfig.ScrapeTimeout,
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EvaluationInterval: Duration(30 * time.Second),
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ExternalLabels: model.LabelSet{
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"monitor": "codelab",
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"foo": "bar",
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},
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},
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RuleFiles: []string{
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"testdata/first.rules",
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"/absolute/second.rules",
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"testdata/my/*.rules",
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},
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ScrapeConfigs: []*ScrapeConfig{
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{
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JobName: "prometheus",
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HonorLabels: true,
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ScrapeInterval: Duration(15 * time.Second),
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ScrapeTimeout: DefaultGlobalConfig.ScrapeTimeout,
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MetricsPath: DefaultScrapeConfig.MetricsPath,
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Scheme: DefaultScrapeConfig.Scheme,
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BearerTokenFile: "testdata/valid_token_file",
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TargetGroups: []*TargetGroup{
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{
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Targets: []model.LabelSet{
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{model.AddressLabel: "localhost:9090"},
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{model.AddressLabel: "localhost:9191"},
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},
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Labels: model.LabelSet{
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"my": "label",
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"your": "label",
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},
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},
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},
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FileSDConfigs: []*FileSDConfig{
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{
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Names: []string{"foo/*.slow.json", "foo/*.slow.yml", "single/file.yml"},
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RefreshInterval: Duration(10 * time.Minute),
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},
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{
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Names: []string{"bar/*.yaml"},
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RefreshInterval: Duration(5 * time.Minute),
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},
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},
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RelabelConfigs: []*RelabelConfig{
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{
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SourceLabels: model.LabelNames{"job", "__meta_dns_srv_name"},
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TargetLabel: "job",
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Separator: ";",
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Regex: MustNewRegexp("(.*)some-[regex]"),
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Replacement: "foo-${1}",
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Action: RelabelReplace,
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}, {
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SourceLabels: model.LabelNames{"abc"},
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TargetLabel: "cde",
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Separator: ";",
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Regex: DefaultRelabelConfig.Regex,
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Replacement: DefaultRelabelConfig.Replacement,
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Action: RelabelReplace,
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}, {
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TargetLabel: "abc",
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Separator: ";",
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Regex: DefaultRelabelConfig.Regex,
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Replacement: "static",
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Action: RelabelReplace,
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},
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},
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},
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{
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JobName: "service-x",
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ScrapeInterval: Duration(50 * time.Second),
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ScrapeTimeout: Duration(5 * time.Second),
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BasicAuth: &BasicAuth{
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Username: "admin_name",
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Password: "admin_password",
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},
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MetricsPath: "/my_path",
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Scheme: "https",
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DNSSDConfigs: []*DNSSDConfig{
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{
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Names: []string{
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"first.dns.address.domain.com",
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"second.dns.address.domain.com",
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},
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RefreshInterval: Duration(15 * time.Second),
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Type: "SRV",
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},
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{
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Names: []string{
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"first.dns.address.domain.com",
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},
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RefreshInterval: Duration(30 * time.Second),
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Type: "SRV",
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},
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},
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RelabelConfigs: []*RelabelConfig{
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{
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SourceLabels: model.LabelNames{"job"},
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Regex: MustNewRegexp("(.*)some-[regex]"),
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Separator: ";",
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Replacement: DefaultRelabelConfig.Replacement,
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Action: RelabelDrop,
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},
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{
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SourceLabels: model.LabelNames{"__address__"},
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TargetLabel: "__tmp_hash",
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Regex: DefaultRelabelConfig.Regex,
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Replacement: DefaultRelabelConfig.Replacement,
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Modulus: 8,
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Separator: ";",
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Action: RelabelHashMod,
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},
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{
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SourceLabels: model.LabelNames{"__tmp_hash"},
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Regex: MustNewRegexp("1"),
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Separator: ";",
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Replacement: DefaultRelabelConfig.Replacement,
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Action: RelabelKeep,
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},
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{
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Regex: MustNewRegexp("1"),
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Separator: ";",
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Replacement: DefaultRelabelConfig.Replacement,
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Action: RelabelLabelMap,
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},
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},
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MetricRelabelConfigs: []*RelabelConfig{
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{
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SourceLabels: model.LabelNames{"__name__"},
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Regex: MustNewRegexp("expensive_metric.*"),
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Separator: ";",
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Replacement: DefaultRelabelConfig.Replacement,
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Action: RelabelDrop,
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},
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},
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},
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{
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JobName: "service-y",
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ScrapeInterval: Duration(15 * time.Second),
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ScrapeTimeout: DefaultGlobalConfig.ScrapeTimeout,
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MetricsPath: DefaultScrapeConfig.MetricsPath,
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Scheme: DefaultScrapeConfig.Scheme,
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ConsulSDConfigs: []*ConsulSDConfig{
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{
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Server: "localhost:1234",
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Services: []string{"nginx", "cache", "mysql"},
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TagSeparator: DefaultConsulSDConfig.TagSeparator,
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Scheme: DefaultConsulSDConfig.Scheme,
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},
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},
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},
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{
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JobName: "service-z",
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ScrapeInterval: Duration(15 * time.Second),
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ScrapeTimeout: Duration(10 * time.Second),
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MetricsPath: "/metrics",
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Scheme: "http",
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TLSConfig: TLSConfig{
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CertFile: "testdata/valid_cert_file",
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KeyFile: "testdata/valid_key_file",
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},
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BearerToken: "avalidtoken",
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},
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{
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JobName: "service-kubernetes",
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ScrapeInterval: Duration(15 * time.Second),
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ScrapeTimeout: DefaultGlobalConfig.ScrapeTimeout,
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MetricsPath: DefaultScrapeConfig.MetricsPath,
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Scheme: DefaultScrapeConfig.Scheme,
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KubernetesSDConfigs: []*KubernetesSDConfig{
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{
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APIServers: []URL{kubernetesSDHostURL()},
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BasicAuth: &BasicAuth{
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Username: "myusername",
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Password: "mypassword",
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},
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KubeletPort: 10255,
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RequestTimeout: Duration(10 * time.Second),
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RetryInterval: Duration(1 * time.Second),
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},
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},
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},
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{
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JobName: "service-marathon",
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ScrapeInterval: Duration(15 * time.Second),
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ScrapeTimeout: DefaultGlobalConfig.ScrapeTimeout,
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MetricsPath: DefaultScrapeConfig.MetricsPath,
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Scheme: DefaultScrapeConfig.Scheme,
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MarathonSDConfigs: []*MarathonSDConfig{
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{
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Servers: []string{
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"http://marathon.example.com:8080",
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},
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RefreshInterval: Duration(30 * time.Second),
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},
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},
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},
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{
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JobName: "service-ec2",
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ScrapeInterval: Duration(15 * time.Second),
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ScrapeTimeout: DefaultGlobalConfig.ScrapeTimeout,
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MetricsPath: DefaultScrapeConfig.MetricsPath,
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Scheme: DefaultScrapeConfig.Scheme,
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EC2SDConfigs: []*EC2SDConfig{
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{
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Region: "us-east-1",
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AccessKey: "access",
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SecretKey: "secret",
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RefreshInterval: Duration(60 * time.Second),
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Port: 80,
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},
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},
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},
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},
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original: "",
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}
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func TestLoadConfig(t *testing.T) {
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// Parse a valid file that sets a global scrape timeout. This tests whether parsing
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// an overwritten default field in the global config permanently changes the default.
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if _, err := LoadFile("testdata/global_timeout.good.yml"); err != nil {
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t.Errorf("Error parsing %s: %s", "testdata/conf.good.yml", err)
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}
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c, err := LoadFile("testdata/conf.good.yml")
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if err != nil {
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t.Fatalf("Error parsing %s: %s", "testdata/conf.good.yml", err)
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}
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bgot, err := yaml.Marshal(c)
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if err != nil {
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t.Fatalf("%s", err)
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}
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bexp, err := yaml.Marshal(expectedConf)
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if err != nil {
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t.Fatalf("%s", err)
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}
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expectedConf.original = c.original
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if !reflect.DeepEqual(c, expectedConf) {
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t.Fatalf("%s: unexpected config result: \n\n%s\n expected\n\n%s", "testdata/conf.good.yml", bgot, bexp)
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}
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// String method must not reveal authentication credentials.
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s := c.String()
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if strings.Contains(s, "admin_password") {
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t.Fatalf("config's String method reveals authentication credentials.")
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}
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}
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var expectedErrors = []struct {
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filename string
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errMsg string
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}{
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{
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filename: "jobname.bad.yml",
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errMsg: `"prom^etheus" is not a valid job name`,
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}, {
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filename: "jobname_dup.bad.yml",
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errMsg: `found multiple scrape configs with job name "prometheus"`,
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}, {
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filename: "labelname.bad.yml",
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errMsg: `"not$allowed" is not a valid label name`,
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}, {
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filename: "labelname2.bad.yml",
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errMsg: `"not:allowed" is not a valid label name`,
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}, {
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filename: "regex.bad.yml",
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errMsg: "error parsing regexp",
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}, {
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filename: "modulus_missing.bad.yml",
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errMsg: "relabel configuration for hashmod requires non-zero modulus",
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}, {
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filename: "rules.bad.yml",
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errMsg: "invalid rule file path",
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}, {
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filename: "unknown_attr.bad.yml",
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errMsg: "unknown fields in scrape_config: consult_sd_configs",
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}, {
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filename: "bearertoken.bad.yml",
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errMsg: "at most one of bearer_token & bearer_token_file must be configured",
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}, {
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filename: "bearertoken_basicauth.bad.yml",
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errMsg: "at most one of basic_auth, bearer_token & bearer_token_file must be configured",
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}, {
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filename: "kubernetes_bearertoken.bad.yml",
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errMsg: "at most one of bearer_token & bearer_token_file must be configured",
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}, {
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filename: "kubernetes_bearertoken_basicauth.bad.yml",
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errMsg: "at most one of basic_auth, bearer_token & bearer_token_file must be configured",
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}, {
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filename: "marathon_no_servers.bad.yml",
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errMsg: "Marathon SD config must contain at least one Marathon server",
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}, {
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filename: "url_in_targetgroup.bad.yml",
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errMsg: "\"http://bad\" is not a valid hostname",
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},
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}
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func TestBadConfigs(t *testing.T) {
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for _, ee := range expectedErrors {
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_, err := LoadFile("testdata/" + ee.filename)
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if err == nil {
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t.Errorf("Expected error parsing %s but got none", ee.filename)
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continue
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}
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if !strings.Contains(err.Error(), ee.errMsg) {
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t.Errorf("Expected error for %s to contain %q but got: %s", ee.filename, ee.errMsg, err)
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}
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}
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}
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func TestBadTargetGroup(t *testing.T) {
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content, err := ioutil.ReadFile("testdata/tgroup.bad.json")
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if err != nil {
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t.Fatal(err)
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}
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var tg TargetGroup
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err = json.Unmarshal(content, &tg)
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if err == nil {
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t.Errorf("Expected unmarshal error but got none.")
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}
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}
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func TestEmptyConfig(t *testing.T) {
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c, err := Load("")
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if err != nil {
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t.Fatalf("Unexpected error parsing empty config file: %s", err)
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}
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exp := DefaultConfig
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if !reflect.DeepEqual(*c, exp) {
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t.Fatalf("want %v, got %v", exp, c)
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}
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}
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func TestEmptyGlobalBlock(t *testing.T) {
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c, err := Load("global:\n")
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if err != nil {
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t.Fatalf("Unexpected error parsing empty config file: %s", err)
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}
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exp := DefaultConfig
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exp.original = "global:\n"
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if !reflect.DeepEqual(*c, exp) {
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t.Fatalf("want %v, got %v", exp, c)
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}
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}
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func kubernetesSDHostURL() URL {
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tURL, _ := url.Parse("https://localhost:1234")
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return URL{URL: tURL}
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}
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