alloy: configMapGenerator setup config.alloy
This commit is contained in:
Márcio Fernandes
@@ -0,0 +1,145 @@
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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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// Metrics: Prometheus connection config
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// ============================================
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prometheus.remote_write "metrics_service" {
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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 = "^(/host|/)(etc/resolv.conf|etc/hosts|etc/hostname|etc/machine-id|dataDisks/nvme01-ephemeral/.+|proc|sys|run/containerd/.+|run/k3s/containerd/.+|var/lib/docker/.+|var/lib/kubelet/.+)($|/)"
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fs_types_exclude = "^(tmpfs|shm|autofs|binfmt_misc|bpf|cgroup2?|configfs|debugfs|devpts|devtmpfs|fusectl|hugetlbfs|iso9660|mqueue|nsfs|overlay|proc|procfs|pstore|rpc_pipefs|securityfs|selinuxfs|squashfs|sysfs|tracefs|erofs)$"
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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.metrics_service.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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@@ -57,154 +57,9 @@ alloy:
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readOnly: true
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# https://grafana.com/docs/alloy/latest/collect/logs-in-kubernetes/
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configMap:
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content: |
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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 = "journald",
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service_name = "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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// Metrics: Prometheus connection config
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// ============================================
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prometheus.remote_write "metrics_service" {
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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 = "^(/host|/)(etc/resolv.conf|etc/hosts|etc/hostname|etc/machine-id|dataDisks/nvme01-ephemeral/.+|proc|sys|run/containerd/.+|run/k3s/containerd/.+|var/lib/docker/.+|var/lib/kubelet/.+)($|/)"
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fs_types_exclude = "^(tmpfs|shm|autofs|binfmt_misc|bpf|cgroup2?|configfs|debugfs|devpts|devtmpfs|fusectl|hugetlbfs|iso9660|mqueue|nsfs|overlay|proc|procfs|pstore|rpc_pipefs|securityfs|selinuxfs|squashfs|sysfs|tracefs|erofs)$"
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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.metrics_service.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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create: false
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name: alloy-node-scraper
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key: config.alloy
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extraEnv:
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- name: NODE_IP
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valueFrom:
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@@ -3,6 +3,12 @@ kind: Kustomization
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namespace: monitoring
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resources:
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- helm-release.yaml
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configMapGenerator:
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- name: alloy-node-scraper
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files:
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- config.alloy=config.alloy
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secretGenerator:
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- name: alloy-node-scraper-helm-values
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files:
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