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use endpoints discovery to find all available control plane nodes #273

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use endpoints discovery to find all available control plane nodes #273

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67 changes: 53 additions & 14 deletions receiver/awscontainerinsightreceiver/internal/k8sapiserver/prometheus_scraper.go
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Original file line number Diff line number Diff line change
Expand Up @@ -11,10 +11,12 @@ import (
"strings"
"time"

ci "github.com/open-telemetry/opentelemetry-collector-contrib/internal/aws/containerinsight"
configutil "github.com/prometheus/common/config"
"github.com/prometheus/common/model"
"github.com/prometheus/prometheus/config"
"github.com/prometheus/prometheus/discovery"
"github.com/prometheus/prometheus/discovery/kubernetes"
"github.com/prometheus/prometheus/model/relabel"
"go.opentelemetry.io/collector/component"
"go.opentelemetry.io/collector/consumer"
Expand Down Expand Up @@ -70,6 +72,7 @@ type PrometheusScraperOpts struct {
Ctx context.Context
TelemetrySettings component.TelemetrySettings
Endpoint string
EndpointAddresses []string
Consumer consumer.Metrics
Host component.Host
ClusterNameProvider clusterNameProvider
Expand Down Expand Up @@ -107,34 +110,34 @@ func NewPrometheusScraper(opts PrometheusScraperOpts) (*PrometheusScraper, error
ScrapeInterval: model.Duration(collectionInterval),
ScrapeTimeout: model.Duration(collectionInterval),
ScrapeProtocols: config.DefaultScrapeProtocols,
JobName: fmt.Sprintf("%s/%s", jobName, opts.Endpoint),
JobName: fmt.Sprintf("%s/%s", jobName, kubernetes.RoleEndpoint),
HonorTimestamps: true,
Scheme: "https",
MetricsPath: "/metrics",
ServiceDiscoveryConfigs: discovery.Configs{
&discovery.StaticConfig{
{
Targets: []model.LabelSet{
{
model.AddressLabel: model.LabelValue(opts.Endpoint),
"ClusterName": model.LabelValue(opts.ClusterNameProvider.GetClusterName()),
"Version": model.LabelValue("0"),
"Sources": model.LabelValue("[\"apiserver\"]"),
"NodeName": model.LabelValue(os.Getenv("HOST_NAME")),
"Type": model.LabelValue("ControlPlane"),
},
},
&kubernetes.SDConfig{
Role: kubernetes.RoleEndpoint,
NamespaceDiscovery: kubernetes.NamespaceDiscovery{
Names: []string{"default"},
},
},
},
RelabelConfigs: []*relabel.Config{
{
SourceLabels: model.LabelNames{"__meta_kubernetes_endpoints_name", "__meta_kubernetes_endpoint_port_name"},
Regex: relabel.MustNewRegexp("kubernetes;https"),
Separator: ";",
Action: relabel.Keep,
},
},
MetricRelabelConfigs: []*relabel.Config{
{
// allow list filter for the control plane metrics we care about
SourceLabels: model.LabelNames{"__name__"},
Regex: relabel.MustNewRegexp(controlPlaneMetricsAllowRegex),
Action: relabel.Keep,
},
// type conflicts with the log Type in the container insights output format, it needs to be replaced and dropped
//type conflicts with the log Type in the container insights output format, it needs to be replaced and dropped
{
Regex: relabel.MustNewRegexp("^type$"),
Replacement: "kubernetes_type",
Expand All @@ -144,6 +147,42 @@ func NewPrometheusScraper(opts PrometheusScraperOpts) (*PrometheusScraper, error
Regex: relabel.MustNewRegexp("^type$"),
Action: relabel.LabelDrop,
},
// default labels set
{
SourceLabels: model.LabelNames{"__meta_kubernetes_namespace"},
TargetLabel: ci.ClusterNameKey,
Regex: relabel.MustNewRegexp(".*"),
Replacement: opts.ClusterNameProvider.GetClusterName(),
Action: relabel.Replace,
},
{
SourceLabels: model.LabelNames{"__meta_kubernetes_namespace"},
TargetLabel: ci.Version,
Regex: relabel.MustNewRegexp(".*"),
Replacement: "0",
Action: relabel.Replace,
},
{
SourceLabels: model.LabelNames{"__meta_kubernetes_namespace"},
TargetLabel: ci.SourcesKey,
Regex: relabel.MustNewRegexp(".*"),
Replacement: "[\"apiserver\"]",
Action: relabel.Replace,
},
{
SourceLabels: model.LabelNames{"__meta_kubernetes_namespace"},
TargetLabel: ci.NodeNameKey,
Regex: relabel.MustNewRegexp(".*"),
Replacement: os.Getenv("HOST_NAME"),
Action: relabel.Replace,
},
{
SourceLabels: model.LabelNames{"__meta_kubernetes_namespace"},
TargetLabel: "Type",
Regex: relabel.MustNewRegexp(".*"),
Replacement: "ControlPlane",
Action: relabel.Replace,
},
},
}

Expand Down
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