439 lines
10 KiB
Plaintext
439 lines
10 KiB
Plaintext
logging {
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level = "warn"
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}
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// ============================================
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// LOKI WRITE TARGET
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// ============================================
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loki.write "loki_srv" {
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endpoint {
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url = sys.env("LOKI_URL")
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}
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}
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// ============================================
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// HOST JOURNALD SOURCE
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// ============================================
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// Read journald logs from the host
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loki.source.journal "journal" {
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max_age = "24h"
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relabel_rules = discovery.relabel.host_journal.rules
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forward_to = [loki.process.host_journal.receiver]
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}
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// ============================================
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// HOST JOURNALD RELABELING
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// ============================================
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// Convert journald metadata into Loki labels
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discovery.relabel "host_journal" {
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targets = []
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// Systemd unit name
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rule {
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source_labels = ["__journal__systemd_unit"]
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target_label = "systemd_unit"
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}
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// Transport type (stdout, syslog, kernel, audit, etc.)
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rule {
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source_labels = ["__journal__transport"]
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target_label = "journal_transport"
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}
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// Priority (info, warning, error)
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rule {
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source_labels = ["__journal_priority_keyword"]
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target_label = "level"
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}
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}
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// ============================================
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// HOST JOURNALD PROCESSING
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// ============================================
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// Add static labels and forward journald logs to Loki
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loki.process "host_journal" {
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stage.static_labels {
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values = {
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cluster = sys.env("CLUSTER_NAME"),
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host = sys.env("HOSTNAME"),
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zone = sys.env("ZONE"),
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job = "integrations/journald",
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}
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}
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forward_to = [loki.write.loki_srv.receiver]
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}
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// ============================================
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// Discovery: Kubernetes - pods
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// ============================================
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discovery.kubernetes "kube_pods" {
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role = "pod"
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selectors {
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role = "pod"
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field = "spec.nodeName=" + coalesce(env("HOSTNAME"), constants.hostname)
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}
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}
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loki.process "kube_pod_logs" {
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stage.static_labels {
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values = {
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cluster = sys.env("CLUSTER_NAME"),
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zone = sys.env("ZONE"),
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host = sys.env("HOSTNAME"),
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node_name = sys.env("HOSTNAME"),
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job = "integrations/kubernetes/pod-logs",
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}
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}
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forward_to = [loki.write.loki_srv.receiver]
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}
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// ============================================
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// Loki.source kube_pod_logs
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// ============================================
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loki.source.kubernetes "kube_pod_logs" {
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targets = discovery.relabel.kube_pod_logs.output
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forward_to = [loki.process.kube_pod_logs.receiver]
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}
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discovery.relabel "kube_pod_logs" {
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targets = discovery.kubernetes.kube_pods.targets
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rule {
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source_labels = ["__meta_kubernetes_namespace"]
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target_label = "namespace"
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}
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rule {
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source_labels = ["__meta_kubernetes_pod_name"]
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regex = "^(.+?)-[0-9a-zA-Z]{4,16}(?:-[0-9a-zA-Z]{4,16})?$"
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replacement = "$1"
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target_label = "pod"
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}
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rule {
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source_labels = ["__meta_kubernetes_pod_container_name"]
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target_label = "container"
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}
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rule {
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source_labels = [
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"__meta_kubernetes_pod_controller_name",
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]
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regex = "([0-9a-z-.]+?)(-[0-9a-f]{8,10})?"
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target_label = "controller"
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}
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rule {
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source_labels = [
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"__meta_kubernetes_pod_label_app_kubernetes_io_name",
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"__meta_kubernetes_pod_label_app",
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"controller_name",
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"__meta_kubernetes_pod_name",
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]
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regex = "^;*([^;]+)(;.*)?$"
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target_label = "app"
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}
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}
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// ============================================
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// Metrics: Prometheus connection config
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// ============================================
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prometheus.remote_write "prometheus_srv" {
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endpoint {
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url = sys.env("PROMETHEUS_URL")
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}
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// global labels
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external_labels = {
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cluster = sys.env("CLUSTER_NAME"),
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zone = sys.env("ZONE"),
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}
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}
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// ============================================
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// Metrics: Prometheus Unix Exporter
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// ============================================
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prometheus.exporter.unix "node_exporter" {
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rootfs_path = "/host"
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disable_collectors = ["ipvs", "btrfs", "infiniband", "xfs", "zfs"]
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enable_collectors = [
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"cpu",
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"meminfo",
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"vmstat",
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"loadavg",
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"filesystem",
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"netdev",
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"uname",
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]
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filesystem {
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mount_points_exclude = "(^/etc|^/dev|^/proc|^/sys|^/run|/kubelet|/volume-subpaths|/kubelet-pods)(?:$|/.*)"
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fs_types_exclude = "^(tmpfs|shm|autofs|binfmt_misc|bpf|cgroup2?|configfs|debugfs|devpts|devtmpfs|fusectl|hugetlbfs|iso9660|mqueue|nsfs|overlay|proc|procfs|pstore|rpc_pipefs|securityfs|selinuxfs|squashfs|sysfs|tracefs|erofs)$"
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mount_timeout = "5s"
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}
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netclass {
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ignored_devices = "^(veth.*|cali.*|[a-f0-9]{15})$"
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}
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netdev {
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device_exclude = "^(veth.*|cali.*|[a-f0-9]{15})$"
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}
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}
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prometheus.scrape "node_exporter" {
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targets = prometheus.exporter.unix.node_exporter.targets
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scrape_interval = "30s"
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forward_to = [prometheus.relabel.node_exporter.receiver]
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}
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prometheus.relabel "node_exporter" {
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forward_to = [prometheus.remote_write.prometheus_srv.receiver]
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rule {
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action = "replace"
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replacement = sys.env("HOSTNAME")
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target_label = "nodename"
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}
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rule {
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action = "replace"
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replacement = sys.env("HOSTNAME")
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target_label = "node"
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}
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}
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// ============================================
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// Discovery: Kubernetes - Nodes
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// ============================================
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discovery.kubernetes "kube_nodes" {
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role = "node"
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}
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discovery.relabel "kubelet" {
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targets = discovery.kubernetes.kube_nodes.targets
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rule {
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source_labels = ["__meta_kubernetes_node_name"]
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regex = coalesce(sys.env("HOSTNAME"), constants.hostname)
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action = "keep"
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}
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rule {
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regex = ".*_uid$|.*_id$|^annotation_.*|^label_.*|^endpoint_.*|^pod_ip$"
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action = "drop"
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}
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rule {
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regex = "container_fs_.*|container_network_.*|container_hugetlb_.*|container_blkio_.*|container_tasks_state_.*"
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action = "drop"
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}
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// duplicate metrics from cAdviser
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rule {
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regex = "container_cpu_usage_seconds_total|container_memory_working_set_bytes|container_memory_rss|container_memory_cache"
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action = "drop"
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}
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rule {
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source_labels = ["__meta_kubernetes_node_address_InternalIP"]
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target_label = "__address__"
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replacement = "$1:10250"
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}
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rule {
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action = "replace"
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source_labels = ["__meta_kubernetes_node_name"]
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regex = "(.+)"
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target_label = "node"
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}
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rule {
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source_labels = ["node"]
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target_label = "host"
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}
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rule {
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target_label = "__metrics_path__"
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replacement = "/metrics"
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}
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rule {
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target_label = "cluster"
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replacement = sys.env("CLUSTER_NAME")
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}
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rule {
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target_label = "zone"
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replacement = sys.env("ZONE")
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}
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}
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prometheus.scrape "kubelet" {
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job_name = "integrations/kubernetes/kubelet"
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targets = discovery.relabel.kubelet.output
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scheme = "https"
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metrics_path = "/metrics"
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tls_config {
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server_name = "kubernetes"
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ca_file = "/var/run/secrets/kubernetes.io/serviceaccount/ca.crt"
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insecure_skip_verify = true
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}
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bearer_token_file = "/var/run/secrets/kubernetes.io/serviceaccount/token"
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forward_to = [prometheus.remote_write.prometheus_srv.receiver]
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}
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// ===========================================================
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// Discovery:relabel: kube_node_metrics (cAdviser)
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// Requirements:
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// - discovery.kubernetes.role.node: kube_nodes
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// ===========================================================
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discovery.relabel "kube_node_metrics" {
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targets = discovery.kubernetes.kube_nodes.targets
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rule {
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source_labels = ["__meta_kubernetes_node_name"]
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regex = coalesce(sys.env("HOSTNAME"), constants.hostname)
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action = "keep"
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}
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rule {
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regex = ".*_uid$|.*_id$|^annotation_.*|^label_.*|^endpoint_.*|^pod_ip$"
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action = "drop"
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}
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rule {
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action = "replace"
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source_labels = ["__meta_kubernetes_node_name"]
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regex = "(.+)"
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target_label = "node"
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}
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rule {
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source_labels = ["node"]
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target_label = "host"
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}
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rule {
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replacement = "/metrics/cadvisor"
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target_label = "__metrics_path__"
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}
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rule {
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target_label = "cluster"
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replacement = sys.env("CLUSTER_NAME")
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}
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rule {
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target_label = "zone"
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replacement = sys.env("ZONE")
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}
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}
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// ===============================================================================
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// Scrape Kubernetes pods containers metrics / cAdvisor
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// Requirements:
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// - discovery.relabel - kube_node_metrics
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// ===============================================================================
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prometheus.scrape "cadvisor" {
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job_name = "integrations/kubernetes/cadvisor"
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targets = discovery.relabel.kube_node_metrics.output
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scheme = "https"
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tls_config {
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server_name = "kubernetes"
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ca_file = "/var/run/secrets/kubernetes.io/serviceaccount/ca.crt"
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insecure_skip_verify = true
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}
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bearer_token_file = "/var/run/secrets/kubernetes.io/serviceaccount/token"
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forward_to = [prometheus.remote_write.prometheus_srv.receiver]
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}
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// ============================================
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// Discovery: Kubernetes - endpoints
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// used by:
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// - loki kubernetes kube state metrics
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// ============================================
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discovery.kubernetes "kube_endpoints" {
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role = "endpoints"
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}
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// ===============================================================================
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// prometheus / Metrics - Scrape kube_state_metrics
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// Requirements:
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// - discovery.relabel - kube_state_metrics
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// ===============================================================================
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prometheus.scrape "kube_state_metrics" {
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job_name = "integrations/kubernetes/kube-state-metrics"
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targets = discovery.relabel.kube_state_metrics.output
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scheme = "http"
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forward_to = [prometheus.remote_write.prometheus_srv.receiver]
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}
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discovery.relabel "kube_state_metrics" {
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targets = discovery.kubernetes.kube_endpoints.targets
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rule {
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source_labels = ["__meta_kubernetes_endpoint_node_name"]
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regex = coalesce(sys.env("HOSTNAME"), constants.hostname)
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action = "keep"
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}
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rule {
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source_labels = ["__meta_kubernetes_service_name"]
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regex = "kube-state-metrics"
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action = "keep"
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}
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rule {
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regex = ".*_uid$|.*_id$|^annotation_.*|^label_.*|^endpoint_.*|^pod_ip$"
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action = "drop"
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}
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rule {
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target_label = "cluster"
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replacement = sys.env("CLUSTER_NAME")
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}
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rule {
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target_label = "zone"
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replacement = sys.env("ZONE")
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}
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}
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