mirror of
https://github.com/prometheus/prometheus.git
synced 2024-12-25 05:34:05 -08:00
Add lightsail service discovery (#8693)
Signed-off-by: N888 <drifto@gmail.com>
This commit is contained in:
parent
e36e5fa833
commit
7c028d59c2
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@ -30,11 +30,11 @@ import (
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"gopkg.in/yaml.v2"
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"github.com/prometheus/prometheus/discovery"
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"github.com/prometheus/prometheus/discovery/aws"
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"github.com/prometheus/prometheus/discovery/azure"
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"github.com/prometheus/prometheus/discovery/consul"
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"github.com/prometheus/prometheus/discovery/digitalocean"
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"github.com/prometheus/prometheus/discovery/dns"
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"github.com/prometheus/prometheus/discovery/ec2"
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"github.com/prometheus/prometheus/discovery/eureka"
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"github.com/prometheus/prometheus/discovery/file"
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"github.com/prometheus/prometheus/discovery/hetzner"
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@ -465,14 +465,14 @@ var expectedConf = &Config{
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HTTPClientConfig: config.DefaultHTTPClientConfig,
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ServiceDiscoveryConfigs: discovery.Configs{
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&ec2.SDConfig{
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&aws.EC2SDConfig{
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Region: "us-east-1",
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AccessKey: "access",
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SecretKey: "mysecret",
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Profile: "profile",
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RefreshInterval: model.Duration(60 * time.Second),
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Port: 80,
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Filters: []*ec2.Filter{
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Filters: []*aws.EC2Filter{
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{
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Name: "tag:environment",
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Values: []string{"prod"},
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@ -485,6 +485,28 @@ var expectedConf = &Config{
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},
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},
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},
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{
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JobName: "service-lightsail",
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HonorTimestamps: true,
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ScrapeInterval: model.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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HTTPClientConfig: config.DefaultHTTPClientConfig,
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ServiceDiscoveryConfigs: discovery.Configs{
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&aws.LightsailSDConfig{
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Region: "us-east-1",
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AccessKey: "access",
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SecretKey: "mysecret",
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Profile: "profile",
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RefreshInterval: model.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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JobName: "service-azure",
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@ -886,7 +908,7 @@ func TestElideSecrets(t *testing.T) {
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yamlConfig := string(config)
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matches := secretRe.FindAllStringIndex(yamlConfig, -1)
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require.Equal(t, 12, len(matches), "wrong number of secret matches found")
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require.Equal(t, 13, len(matches), "wrong number of secret matches found")
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require.NotContains(t, yamlConfig, "mysecret",
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"yaml marshal reveals authentication credentials.")
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}
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7
config/testdata/conf.good.yml
vendored
7
config/testdata/conf.good.yml
vendored
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@ -215,6 +215,13 @@ scrape_configs:
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- web
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- db
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- job_name: service-lightsail
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lightsail_sd_configs:
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- region: us-east-1
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access_key: access
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secret_key: mysecret
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profile: profile
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- job_name: service-azure
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azure_sd_configs:
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- environment: AzurePublicCloud
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@ -1,4 +1,4 @@
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// Copyright 2015 The Prometheus Authors
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// Copyright 2021 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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@ -11,7 +11,7 @@
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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 ec2
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package aws
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import (
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"context"
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@ -61,24 +61,26 @@ const (
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ec2LabelSeparator = ","
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)
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// DefaultSDConfig is the default EC2 SD configuration.
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var DefaultSDConfig = SDConfig{
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Port: 80,
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RefreshInterval: model.Duration(60 * time.Second),
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}
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var (
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// DefaultEC2SDConfig is the default EC2 SD configuration.
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DefaultEC2SDConfig = EC2SDConfig{
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Port: 80,
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RefreshInterval: model.Duration(60 * time.Second),
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}
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)
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func init() {
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discovery.RegisterConfig(&SDConfig{})
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discovery.RegisterConfig(&EC2SDConfig{})
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}
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// Filter is the configuration for filtering EC2 instances.
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type Filter struct {
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type EC2Filter struct {
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Name string `yaml:"name"`
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Values []string `yaml:"values"`
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}
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// SDConfig is the configuration for EC2 based service discovery.
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type SDConfig struct {
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// EC2SDConfig is the configuration for EC2 based service discovery.
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type EC2SDConfig struct {
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Endpoint string `yaml:"endpoint"`
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Region string `yaml:"region"`
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AccessKey string `yaml:"access_key,omitempty"`
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@ -87,21 +89,21 @@ type SDConfig struct {
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RoleARN string `yaml:"role_arn,omitempty"`
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RefreshInterval model.Duration `yaml:"refresh_interval,omitempty"`
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Port int `yaml:"port"`
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Filters []*Filter `yaml:"filters"`
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Filters []*EC2Filter `yaml:"filters"`
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}
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// Name returns the name of the Config.
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func (*SDConfig) Name() string { return "ec2" }
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// Name returns the name of the EC2 Config.
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func (*EC2SDConfig) Name() string { return "ec2" }
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// NewDiscoverer returns a Discoverer for the Config.
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func (c *SDConfig) NewDiscoverer(opts discovery.DiscovererOptions) (discovery.Discoverer, error) {
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return NewDiscovery(c, opts.Logger), nil
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// NewDiscoverer returns a Discoverer for the EC2 Config.
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func (c *EC2SDConfig) NewDiscoverer(opts discovery.DiscovererOptions) (discovery.Discoverer, error) {
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return NewEC2Discovery(c, opts.Logger), nil
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}
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// UnmarshalYAML implements the yaml.Unmarshaler interface.
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func (c *SDConfig) UnmarshalYAML(unmarshal func(interface{}) error) error {
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*c = DefaultSDConfig
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type plain SDConfig
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// UnmarshalYAML implements the yaml.Unmarshaler interface for the EC2 Config.
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func (c *EC2SDConfig) UnmarshalYAML(unmarshal func(interface{}) error) error {
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*c = DefaultEC2SDConfig
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type plain EC2SDConfig
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err := unmarshal((*plain)(c))
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if err != nil {
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return err
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@ -128,18 +130,18 @@ func (c *SDConfig) UnmarshalYAML(unmarshal func(interface{}) error) error {
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// Discovery periodically performs EC2-SD requests. It implements
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// the Discoverer interface.
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type Discovery struct {
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type EC2Discovery struct {
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*refresh.Discovery
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cfg *SDConfig
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cfg *EC2SDConfig
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ec2 *ec2.EC2
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}
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// NewDiscovery returns a new EC2Discovery which periodically refreshes its targets.
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func NewDiscovery(conf *SDConfig, logger log.Logger) *Discovery {
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// NewEC2Discovery returns a new EC2Discovery which periodically refreshes its targets.
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func NewEC2Discovery(conf *EC2SDConfig, logger log.Logger) *EC2Discovery {
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if logger == nil {
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logger = log.NewNopLogger()
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}
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d := &Discovery{
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d := &EC2Discovery{
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cfg: conf,
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}
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d.Discovery = refresh.NewDiscovery(
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@ -151,7 +153,7 @@ func NewDiscovery(conf *SDConfig, logger log.Logger) *Discovery {
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return d
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}
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func (d *Discovery) ec2Client() (*ec2.EC2, error) {
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func (d *EC2Discovery) ec2Client() (*ec2.EC2, error) {
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if d.ec2 != nil {
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return d.ec2, nil
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}
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@ -183,7 +185,7 @@ func (d *Discovery) ec2Client() (*ec2.EC2, error) {
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return d.ec2, nil
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}
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func (d *Discovery) refresh(ctx context.Context) ([]*targetgroup.Group, error) {
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func (d *EC2Discovery) refresh(ctx context.Context) ([]*targetgroup.Group, error) {
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ec2Client, err := d.ec2Client()
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if err != nil {
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return nil, err
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234
discovery/aws/lightsail.go
Normal file
234
discovery/aws/lightsail.go
Normal file
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@ -0,0 +1,234 @@
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// Copyright 2021 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 aws
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import (
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"context"
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"fmt"
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"net"
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"strings"
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"time"
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"github.com/aws/aws-sdk-go/aws"
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"github.com/aws/aws-sdk-go/aws/awserr"
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"github.com/aws/aws-sdk-go/aws/credentials"
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"github.com/aws/aws-sdk-go/aws/credentials/stscreds"
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"github.com/aws/aws-sdk-go/aws/ec2metadata"
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"github.com/aws/aws-sdk-go/aws/session"
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"github.com/aws/aws-sdk-go/service/lightsail"
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"github.com/go-kit/kit/log"
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"github.com/pkg/errors"
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"github.com/prometheus/common/config"
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"github.com/prometheus/common/model"
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"github.com/prometheus/prometheus/discovery"
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"github.com/prometheus/prometheus/discovery/refresh"
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"github.com/prometheus/prometheus/discovery/targetgroup"
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"github.com/prometheus/prometheus/util/strutil"
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)
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const (
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lightsailLabel = model.MetaLabelPrefix + "lightsail_"
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lightsailLabelAZ = lightsailLabel + "availability_zone"
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lightsailLabelBlueprintID = lightsailLabel + "blueprint_id"
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lightsailLabelBundleID = lightsailLabel + "bundle_id"
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lightsailLabelInstanceName = lightsailLabel + "instance_name"
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lightsailLabelInstanceState = lightsailLabel + "instance_state"
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lightsailLabelInstanceSupportCode = lightsailLabel + "instance_support_code"
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lightsailLabelIPv6Addresses = lightsailLabel + "ipv6_addresses"
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lightsailLabelPrivateIP = lightsailLabel + "private_ip"
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lightsailLabelPublicIP = lightsailLabel + "public_ip"
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lightsailLabelTag = lightsailLabel + "tag_"
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lightsailLabelSeparator = ","
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)
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var (
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// DefaultLightsailSDConfig is the default Lightsail SD configuration.
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DefaultLightsailSDConfig = LightsailSDConfig{
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Port: 80,
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RefreshInterval: model.Duration(60 * time.Second),
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}
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)
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func init() {
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discovery.RegisterConfig(&LightsailSDConfig{})
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}
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// LightsailSDConfig is the configuration for Lightsail based service discovery.
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type LightsailSDConfig struct {
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Endpoint string `yaml:"endpoint"`
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Region string `yaml:"region"`
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AccessKey string `yaml:"access_key,omitempty"`
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SecretKey config.Secret `yaml:"secret_key,omitempty"`
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Profile string `yaml:"profile,omitempty"`
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RoleARN string `yaml:"role_arn,omitempty"`
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RefreshInterval model.Duration `yaml:"refresh_interval,omitempty"`
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Port int `yaml:"port"`
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}
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// Name returns the name of the Lightsail Config.
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func (*LightsailSDConfig) Name() string { return "lightsail" }
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// NewDiscoverer returns a Discoverer for the Lightsail Config.
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func (c *LightsailSDConfig) NewDiscoverer(opts discovery.DiscovererOptions) (discovery.Discoverer, error) {
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return NewLightsailDiscovery(c, opts.Logger), nil
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}
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// UnmarshalYAML implements the yaml.Unmarshaler interface for the Lightsail Config.
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func (c *LightsailSDConfig) UnmarshalYAML(unmarshal func(interface{}) error) error {
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*c = DefaultLightsailSDConfig
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type plain LightsailSDConfig
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err := unmarshal((*plain)(c))
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if err != nil {
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return err
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}
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if c.Region == "" {
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sess, err := session.NewSession()
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if err != nil {
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return err
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}
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metadata := ec2metadata.New(sess)
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region, err := metadata.Region()
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if err != nil {
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return errors.New("Lightsail SD configuration requires a region")
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}
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c.Region = region
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}
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return nil
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}
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// Discovery periodically performs Lightsail-SD requests. It implements
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// the Discoverer interface.
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type LightsailDiscovery struct {
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*refresh.Discovery
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cfg *LightsailSDConfig
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lightsail *lightsail.Lightsail
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}
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// NewLightsailDiscovery returns a new LightsailDiscovery which periodically refreshes its targets.
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func NewLightsailDiscovery(conf *LightsailSDConfig, logger log.Logger) *LightsailDiscovery {
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if logger == nil {
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logger = log.NewNopLogger()
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}
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d := &LightsailDiscovery{
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cfg: conf,
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}
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d.Discovery = refresh.NewDiscovery(
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logger,
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"lightsail",
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time.Duration(d.cfg.RefreshInterval),
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d.refresh,
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)
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return d
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}
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func (d *LightsailDiscovery) lightsailClient() (*lightsail.Lightsail, error) {
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if d.lightsail != nil {
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return d.lightsail, nil
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}
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creds := credentials.NewStaticCredentials(d.cfg.AccessKey, string(d.cfg.SecretKey), "")
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if d.cfg.AccessKey == "" && d.cfg.SecretKey == "" {
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creds = nil
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}
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sess, err := session.NewSessionWithOptions(session.Options{
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Config: aws.Config{
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Endpoint: &d.cfg.Endpoint,
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Region: &d.cfg.Region,
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Credentials: creds,
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},
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Profile: d.cfg.Profile,
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})
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if err != nil {
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return nil, errors.Wrap(err, "could not create aws session")
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}
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if d.cfg.RoleARN != "" {
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creds := stscreds.NewCredentials(sess, d.cfg.RoleARN)
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d.lightsail = lightsail.New(sess, &aws.Config{Credentials: creds})
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} else {
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d.lightsail = lightsail.New(sess)
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}
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return d.lightsail, nil
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}
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func (d *LightsailDiscovery) refresh(ctx context.Context) ([]*targetgroup.Group, error) {
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lightsailClient, err := d.lightsailClient()
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if err != nil {
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return nil, err
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}
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tg := &targetgroup.Group{
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Source: d.cfg.Region,
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}
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input := &lightsail.GetInstancesInput{}
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output, err := lightsailClient.GetInstancesWithContext(ctx, input)
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if err != nil {
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if awsErr, ok := err.(awserr.Error); ok && (awsErr.Code() == "AuthFailure" || awsErr.Code() == "UnauthorizedOperation") {
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d.lightsail = nil
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}
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return nil, errors.Wrap(err, "could not get instances")
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}
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for _, inst := range output.Instances {
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if inst.PrivateIpAddress == nil {
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continue
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}
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labels := model.LabelSet{
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lightsailLabelAZ: model.LabelValue(*inst.Location.AvailabilityZone),
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lightsailLabelBlueprintID: model.LabelValue(*inst.BlueprintId),
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lightsailLabelBundleID: model.LabelValue(*inst.BundleId),
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lightsailLabelInstanceName: model.LabelValue(*inst.Name),
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lightsailLabelInstanceState: model.LabelValue(*inst.State.Name),
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lightsailLabelInstanceSupportCode: model.LabelValue(*inst.SupportCode),
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lightsailLabelPrivateIP: model.LabelValue(*inst.PrivateIpAddress),
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}
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addr := net.JoinHostPort(*inst.PrivateIpAddress, fmt.Sprintf("%d", d.cfg.Port))
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labels[model.AddressLabel] = model.LabelValue(addr)
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if inst.PublicIpAddress != nil {
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labels[lightsailLabelPublicIP] = model.LabelValue(*inst.PublicIpAddress)
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}
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if len(inst.Ipv6Addresses) > 0 {
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var ipv6addrs []string
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for _, ipv6addr := range inst.Ipv6Addresses {
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ipv6addrs = append(ipv6addrs, *ipv6addr)
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}
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labels[lightsailLabelIPv6Addresses] = model.LabelValue(
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lightsailLabelSeparator +
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strings.Join(ipv6addrs, lightsailLabelSeparator) +
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lightsailLabelSeparator)
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}
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for _, t := range inst.Tags {
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if t == nil || t.Key == nil || t.Value == nil {
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continue
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}
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name := strutil.SanitizeLabelName(*t.Key)
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labels[lightsailLabelTag+model.LabelName(name)] = model.LabelValue(*t.Value)
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}
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tg.Targets = append(tg.Targets, labels)
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}
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return []*targetgroup.Group{tg}, nil
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}
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@ -16,11 +16,11 @@
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package install
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import (
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_ "github.com/prometheus/prometheus/discovery/aws" // register aws
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||||
_ "github.com/prometheus/prometheus/discovery/azure" // register azure
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_ "github.com/prometheus/prometheus/discovery/consul" // register consul
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_ "github.com/prometheus/prometheus/discovery/digitalocean" // register digitalocean
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_ "github.com/prometheus/prometheus/discovery/dns" // register dns
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_ "github.com/prometheus/prometheus/discovery/ec2" // register ec2
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_ "github.com/prometheus/prometheus/discovery/eureka" // register eureka
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_ "github.com/prometheus/prometheus/discovery/file" // register file
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_ "github.com/prometheus/prometheus/discovery/gce" // register gce
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|
|
|
@ -238,6 +238,10 @@ hetzner_sd_configs:
|
|||
kubernetes_sd_configs:
|
||||
[ - <kubernetes_sd_config> ... ]
|
||||
|
||||
# List of Lightsail service discovery configurations.
|
||||
lightsail_sd_configs:
|
||||
[ - <lightsail_sd_config> ... ]
|
||||
|
||||
# List of Marathon service discovery configurations.
|
||||
marathon_sd_configs:
|
||||
[ - <marathon_sd_config> ... ]
|
||||
|
@ -1341,6 +1345,54 @@ for a detailed example of configuring Prometheus for Kubernetes.
|
|||
You may wish to check out the 3rd party [Prometheus Operator](https://github.com/coreos/prometheus-operator),
|
||||
which automates the Prometheus setup on top of Kubernetes.
|
||||
|
||||
### `<lightsail_sd_config>`
|
||||
|
||||
Lightsail SD configurations allow retrieving scrape targets from [AWS Lightsail](https://aws.amazon.com/lightsail/)
|
||||
instances. The private IP address is used by default, but may be changed to
|
||||
the public IP address with relabeling.
|
||||
|
||||
The following meta labels are available on targets during [relabeling](#relabel_config):
|
||||
|
||||
* `__meta_lightsail_availability_zone`: the availability zone in which the instance is running
|
||||
* `__meta_lightsail_blueprint_id`: the Lightsail blueprint ID
|
||||
* `__meta_lightsail_bundle_id`: the Lightsail bundle ID
|
||||
* `__meta_lightsail_instance_name`: the name of the Lightsail instance
|
||||
* `__meta_lightsail_instance_state`: the state of the Lightsail instance
|
||||
* `__meta_lightsail_instance_support_code`: the support code of the Lightsail instance
|
||||
* `__meta_lightsail_ipv6_addresses`: comma separated list of IPv6 addresses assigned to the instance's network interfaces, if present
|
||||
* `__meta_lightsail_private_ip`: the private IP address of the instance
|
||||
* `__meta_lightsail_public_ip`: the public IP address of the instance, if available
|
||||
* `__meta_lightsail_tag_<tagkey>`: each tag value of the instance
|
||||
|
||||
See below for the configuration options for Lightsail discovery:
|
||||
|
||||
```yaml
|
||||
# The information to access the Lightsail API.
|
||||
|
||||
# The AWS region. If blank, the region from the instance metadata is used.
|
||||
[ region: <string> ]
|
||||
|
||||
# Custom endpoint to be used.
|
||||
[ endpoint: <string> ]
|
||||
|
||||
# The AWS API keys. If blank, the environment variables `AWS_ACCESS_KEY_ID`
|
||||
# and `AWS_SECRET_ACCESS_KEY` are used.
|
||||
[ access_key: <string> ]
|
||||
[ secret_key: <secret> ]
|
||||
# Named AWS profile used to connect to the API.
|
||||
[ profile: <string> ]
|
||||
|
||||
# AWS Role ARN, an alternative to using AWS API keys.
|
||||
[ role_arn: <string> ]
|
||||
|
||||
# Refresh interval to re-read the instance list.
|
||||
[ refresh_interval: <duration> | default = 60s ]
|
||||
|
||||
# The port to scrape metrics from. If using the public IP address, this must
|
||||
# instead be specified in the relabeling rule.
|
||||
[ port: <int> | default = 80 ]
|
||||
```
|
||||
|
||||
### `<marathon_sd_config>`
|
||||
|
||||
Marathon SD configurations allow retrieving scrape targets using the
|
||||
|
@ -1936,6 +1988,10 @@ hetzner_sd_configs:
|
|||
kubernetes_sd_configs:
|
||||
[ - <kubernetes_sd_config> ... ]
|
||||
|
||||
# List of Lightsail service discovery configurations.
|
||||
lightsail_sd_configs:
|
||||
[ - <lightsail_sd_config> ... ]
|
||||
|
||||
# List of Marathon service discovery configurations.
|
||||
marathon_sd_configs:
|
||||
[ - <marathon_sd_config> ... ]
|
||||
|
|
Loading…
Reference in a new issue