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prometheus/config/config_test.go
Thibault Chataigner bf4a279a91 Remote storage reads based on oldest timestamp in primary storage (#3129) 
Currently all read queries are simply pushed to remote read clients.
This is fine, except for remote storage for wich it unefficient and
make query slower even if remote read is unnecessary.
So we need instead to compare the oldest timestamp in primary/local
storage with the query range lower boundary. If the oldest timestamp
is older than the mint parameter, then there is no need for remote read.
This is an optionnal behavior per remote read client.

Signed-off-by: Thibault Chataigner <t.chataigner@criteo.com>
2017-10-18 12:08:14 +01:00

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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"
"path/filepath"
"regexp"
"strings"
"testing"
"time"
"github.com/prometheus/common/model"
"github.com/prometheus/prometheus/util/testutil"
"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{
filepath.FromSlash("testdata/first.rules"),
filepath.FromSlash("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: "$1",
Action: RelabelDrop,
},
},
QueueConfig: DefaultQueueConfig,
},
{
URL: mustParseURL("http://remote2/push"),
RemoteTimeout: model.Duration(30 * time.Second),
QueueConfig: DefaultQueueConfig,
},
},
RemoteReadConfigs: []*RemoteReadConfig{
{
URL: mustParseURL("http://remote1/read"),
RemoteTimeout: model.Duration(1 * time.Minute),
ReadRecent: true,
},
{
URL: mustParseURL("http://remote3/read"),
RemoteTimeout: model.Duration(1 * time.Minute),
ReadRecent: false,
},
},
ScrapeConfigs: []*ScrapeConfig{
{
JobName: "prometheus",
HonorLabels: true,
ScrapeInterval: model.Duration(15 * time.Second),
ScrapeTimeout: DefaultGlobalConfig.ScrapeTimeout,
MetricsPath: DefaultScrapeConfig.MetricsPath,
Scheme: DefaultScrapeConfig.Scheme,
HTTPClientConfig: HTTPClientConfig{
BearerTokenFile: filepath.FromSlash("testdata/valid_token_file"),
},
ServiceDiscoveryConfig: ServiceDiscoveryConfig{
StaticConfigs: []*TargetGroup{
{
Targets: []model.LabelSet{
{model.AddressLabel: "localhost:9090"},
{model.AddressLabel: "localhost:9191"},
},
Labels: model.LabelSet{
"my": "label",
"your": "label",
},
},
},
FileSDConfigs: []*FileSDConfig{
{
Files: []string{"testdata/foo/*.slow.json", "testdata/foo/*.slow.yml", "testdata/single/file.yml"},
RefreshInterval: model.Duration(10 * time.Minute),
},
{
Files: []string{"testdata/bar/*.yaml"},
RefreshInterval: model.Duration(5 * time.Minute),
},
},
},
RelabelConfigs: []*RelabelConfig{
{
SourceLabels: model.LabelNames{"job", "__meta_dns_name"},
TargetLabel: "job",
Separator: ";",
Regex: MustNewRegexp("(.*)some-[regex]"),
Replacement: "foo-${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: "multiline\nmysecret\ntest",
},
},
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",
Token: "mysecret",
Services: []string{"nginx", "cache", "mysql"},
TagSeparator: DefaultConsulSDConfig.TagSeparator,
Scheme: "https",
TLSConfig: TLSConfig{
CertFile: filepath.FromSlash("testdata/valid_cert_file"),
KeyFile: filepath.FromSlash("testdata/valid_key_file"),
CAFile: filepath.FromSlash("testdata/valid_ca_file"),
InsecureSkipVerify: false,
},
},
},
},
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: filepath.FromSlash("testdata/valid_cert_file"),
KeyFile: filepath.FromSlash("testdata/valid_key_file"),
},
BearerToken: "mysecret",
},
},
{
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: "mysecret",
},
NamespaceDiscovery: KubernetesNamespaceDiscovery{},
},
},
},
},
{
JobName: "service-kubernetes-namespaces",
ScrapeInterval: model.Duration(15 * time.Second),
ScrapeTimeout: DefaultGlobalConfig.ScrapeTimeout,
MetricsPath: DefaultScrapeConfig.MetricsPath,
Scheme: DefaultScrapeConfig.Scheme,
ServiceDiscoveryConfig: ServiceDiscoveryConfig{
KubernetesSDConfigs: []*KubernetesSDConfig{
{
APIServer: kubernetesSDHostURL(),
Role: KubernetesRoleEndpoint,
NamespaceDiscovery: KubernetesNamespaceDiscovery{
Names: []string{
"default",
},
},
},
},
},
},
{
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: filepath.FromSlash("testdata/valid_cert_file"),
KeyFile: filepath.FromSlash("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: "mysecret",
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: "mysecret",
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.
_, err := LoadFile("testdata/global_timeout.good.yml")
testutil.Ok(t, err)
c, err := LoadFile("testdata/conf.good.yml")
testutil.Ok(t, err)
expectedConf.original = c.original
testutil.Equals(t, expectedConf, c)
}
// YAML marshalling must not reveal authentication credentials.
func TestElideSecrets(t *testing.T) {
c, err := LoadFile("testdata/conf.good.yml")
testutil.Ok(t, err)
secretRe := regexp.MustCompile(`\\u003csecret\\u003e|<secret>`)
config, err := yaml.Marshal(c)
testutil.Ok(t, err)
yamlConfig := string(config)
matches := secretRe.FindAllStringIndex(yamlConfig, -1)
testutil.Assert(t, len(matches) == 6, "wrong number of secret matches found")
testutil.Assert(t, !strings.Contains(yamlConfig, "mysecret"),
"yaml marshal reveals authentication credentials.")
}
func TestLoadConfigRuleFilesAbsolutePath(t *testing.T) {
// Parse a valid file that sets a rule files with an absolute path
c, err := LoadFile(ruleFilesConfigFile)
testutil.Ok(t, err)
ruleFilesExpectedConf.original = c.original
testutil.Equals(t, ruleFilesExpectedConf, c)
}
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: "labelkeep.bad.yml",
errMsg: "labelkeep action requires only 'regex', and no other fields",
}, {
filename: "labelkeep2.bad.yml",
errMsg: "labelkeep action requires only 'regex', and no other fields",
}, {
filename: "labelkeep3.bad.yml",
errMsg: "labelkeep action requires only 'regex', and no other fields",
}, {
filename: "labelkeep4.bad.yml",
errMsg: "labelkeep action requires only 'regex', and no other fields",
}, {
filename: "labelkeep5.bad.yml",
errMsg: "labelkeep action requires only 'regex', and no other fields",
}, {
filename: "labeldrop.bad.yml",
errMsg: "labeldrop action requires only 'regex', and no other fields",
}, {
filename: "labeldrop2.bad.yml",
errMsg: "labeldrop action requires only 'regex', and no other fields",
}, {
filename: "labeldrop3.bad.yml",
errMsg: "labeldrop action requires only 'regex', and no other fields",
}, {
filename: "labeldrop4.bad.yml",
errMsg: "labeldrop action requires only 'regex', and no other fields",
}, {
filename: "labeldrop5.bad.yml",
errMsg: "labeldrop action requires only 'regex', and no other fields",
}, {
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_namespace_discovery.bad.yml",
errMsg: "unknown fields in namespaces",
}, {
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",
}, {
filename: "unknown_global_attr.bad.yml",
errMsg: "unknown fields in global config: nonexistent_field",
}, {
filename: "remote_read_url_missing.bad.yml",
errMsg: `url for remote_read is empty`,
}, {
filename: "remote_write_url_missing.bad.yml",
errMsg: `url for remote_write is empty`,
},
}
func TestBadConfigs(t *testing.T) {
for _, ee := range expectedErrors {
_, err := LoadFile("testdata/" + ee.filename)
testutil.Assert(t, err != nil,
"Expected error parsing %s but got none", ee.filename)
testutil.Assert(t, strings.Contains(err.Error(), ee.errMsg),
"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")
testutil.Ok(t, err)
var tg TargetGroup
err = json.Unmarshal(content, &tg)
testutil.Assert(t, err != nil, "Expected unmarshal error but got none.")
}
func TestEmptyConfig(t *testing.T) {
c, err := Load("")
testutil.Ok(t, err)
exp := DefaultConfig
testutil.Equals(t, exp, *c)
}
func TestEmptyGlobalBlock(t *testing.T) {
c, err := Load("global:\n")
testutil.Ok(t, err)
exp := DefaultConfig
exp.original = "global:\n"
testutil.Equals(t, 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 {
testutil.Assert(t, relabelTarget.Match([]byte(test.str)) == test.valid,
"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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