alloy:kube scraper config review

This commit is contained in:
Márcio Fernandes
2026-09-04 22:24:42 +00:00
parent da434fe631
commit 926e5f9efa
@@ -141,57 +141,32 @@ alloy:
stage.static_labels { stage.static_labels {
values = { values = {
cluster = env("CLUSTER_NAME"), cluster = env("CLUSTER_NAME"),
host = "casa-kube", host = "icarus-kube",
job = "cluster_events", job = "cluster_events",
zone = env("ZONE"), zone = env("ZONE"),
} }
} }
}
discovery.kubernetes "k8s_nodes" { // stage.labels {
role = "node" // values = {
// kubernetes_cluster_events = "job",
// }
// }
} }
discovery.relabel "cadvisor" { // Metrics
targets = discovery.kubernetes.k8s_nodes.targets
rule {
replacement = "/metrics/cadvisor"
target_label = "__metrics_path__"
}
rule {
target_label = "instance"
replacement = env("NODE_IP") + ":10250"
}
rule {
target_label = "node"
replacement = env("HOSTNAME")
}
rule {
target_label = "service"
replacement = "kube-scrapper"
}
rule {
target_label = "cluster"
replacement = env("CLUSTER_NAME")
}
rule {
target_label = "job"
replacement = "kubelet"
}
}
prometheus.remote_write "metrics_service" {
prometheus.remote_write "prometheus_srv" {
endpoint { endpoint {
url = env("PROMETHEUS_URL") url = env("PROMETHEUS_URL")
} }
}
// discovery kubernetes
discovery.kubernetes "k8s_nodes" {
role = "node"
} }
prometheus.scrape "cadvisor" { prometheus.scrape "cadvisor" {
@@ -206,14 +181,50 @@ alloy:
} }
bearer_token_file = "/var/run/secrets/kubernetes.io/serviceaccount/token" bearer_token_file = "/var/run/secrets/kubernetes.io/serviceaccount/token"
forward_to = [prometheus.remote_write.metrics_service.receiver] forward_to = [prometheus.remote_write.prometheus_srv.receiver]
} }
discovery.relabel "cadvisor" {
targets = discovery.kubernetes.k8s_nodes.targets
rule {
replacement = "/metrics/cadvisor"
target_label = "__metrics_path__"
}
rule {
target_label = "instance"
replacement = env("NODE_IP") + ":10250"
}
rule {
target_label = "node"
replacement = env("HOSTNAME")
}
// rule {
// target_label = "service"
// replacement = "kube-scrapper"
// }
rule {
target_label = "cluster"
replacement = env("CLUSTER_NAME")
}
// rule {
// target_label = "job"
// replacement = "kubelet"
// }
}
discovery.kubernetes "k8s_services" { discovery.kubernetes "k8s_services" {
role = "service" role = "service"
} }
discovery.relabel "ksm" { discovery.relabel "kube_state_metrics" {
targets = discovery.kubernetes.k8s_services.targets targets = discovery.kubernetes.k8s_services.targets
rule { rule {
@@ -221,32 +232,7 @@ alloy:
regex = "kube-state-metrics" regex = "kube-state-metrics"
action = "keep" action = "keep"
} }
}
prometheus.scrape "kube_state_metrics" {
job_name = "integrations/kubernetes/kube-state-metrics"
targets = discovery.relabel.ksm.output
scheme = "http"
forward_to = [prometheus.remote_write.metrics_service.receiver]
}
// ============================================
// CoreDNS discovery
// ============================================
discovery.kubernetes "coredns_pod" {
role = "pod"
}
discovery.relabel "coredns" {
targets = discovery.kubernetes.pod.targets
rule {
source_labels = ["__meta_kubernetes_pod_label_k8s_app"]
regex = "kube-dns"
action = "keep"
}
rule { rule {
target_label = "node" target_label = "node"
replacement = env("HOSTNAME") replacement = env("HOSTNAME")
@@ -258,28 +244,21 @@ alloy:
} }
} }
// ============================================ prometheus.scrape "kube_state_metrics" {
// CoreDNS scrape job_name = "integrations/kubernetes/kube-state-metrics"
// ============================================ targets = discovery.relabel.kube_state_metrics.output
prometheus.scrape "coredns" {
job_name = "integrations/kubernetes/coredns-pods"
targets = discovery.relabel.coredns.output
scheme = "http" scheme = "http"
metrics_path = "/metrics"
forward_to = [prometheus.remote_write.metrics_service.receiver] forward_to = [prometheus.remote_write.prometheus_srv.receiver]
} }
// ============================================ // ============================================
// API Server discovery // API Server discovery
// ============================================ // ============================================
discovery.kubernetes "apiserver_services" {
role = "service"
}
discovery.relabel "apiserver" { discovery.relabel "apiserver" {
targets = discovery.kubernetes.apiserver_services.targets targets = discovery.kubernetes.k8s_services.targets
rule { rule {
source_labels = ["__meta_kubernetes_service_name"] source_labels = ["__meta_kubernetes_service_name"]
@@ -297,9 +276,6 @@ alloy:
} }
} }
// ============================================
// API Server scrape
// ============================================
prometheus.scrape "apiserver" { prometheus.scrape "apiserver" {
job_name = "integrations/kubernetes/apiserver" job_name = "integrations/kubernetes/apiserver"
targets = discovery.relabel.apiserver.output targets = discovery.relabel.apiserver.output
@@ -315,7 +291,39 @@ alloy:
bearer_token_file = "/var/run/secrets/kubernetes.io/serviceaccount/token" bearer_token_file = "/var/run/secrets/kubernetes.io/serviceaccount/token"
forward_to = [prometheus.remote_write.metrics_service.receiver] forward_to = [prometheus.remote_write.prometheus_srv.receiver]
}
// ============================================
// CoreDNS discovery
// ============================================
discovery.relabel "coredns" {
targets = discovery.kubernetes.k8s_services.targets
rule {
source_labels = ["__meta_kubernetes_pod_label_k8s_app"]
regex = "kube-dns"
action = "keep"
}
rule {
target_label = "node"
replacement = env("HOSTNAME")
}
rule {
target_label = "cluster"
replacement = env("CLUSTER_NAME")
}
}
prometheus.scrape "coredns" {
job_name = "integrations/kubernetes/coredns-pods"
targets = discovery.relabel.coredns.output
scheme = "http"
metrics_path = "/metrics"
forward_to = [prometheus.remote_write.prometheus_srv.receiver]
} }