homelab-nomad/core/metrics/prometheus.nomad

112 lines
2.6 KiB
HCL

job "prometheus" {
datacenters = ["dc1"]
group "prometheus" {
count = 1
network {
mode = "bridge"
port "web" {
host_network = "wesher"
to = 9090
}
}
# ephemeral_disk {
# migrate = true
# sticky = true
# }
service {
name = "prometheus"
provider = "nomad"
port = "web"
// TODO: Remove traefik tags
tags = [
"traefik.enable=true",
"traefik.http.routers.prometheus.entryPoints=websecure",
]
}
task "prometheus" {
driver = "docker"
config {
image = "prom/prometheus:v2.43.0"
ports = ["web"]
args = [
"--config.file=/etc/prometheus/config/prometheus.yml",
"--storage.tsdb.path=${NOMAD_ALLOC_DIR}/data/tsdb",
"--web.listen-address=0.0.0.0:9090",
"--web.console.libraries=/usr/share/prometheus/console_libraries",
"--web.console.templates=/usr/share/prometheus/consoles",
]
mount {
type = "bind"
target = "/etc/prometheus/config"
source = "local/config"
}
}
template {
data = <<EOF
---
global:
scrape_interval: 30s
evaluation_interval: 3s
scrape_configs:
- job_name: prometheus
static_configs:
- targets:
- 0.0.0.0:9090
- job_name: "nomad_client"
metrics_path: "/v1/metrics"
params:
format:
- "prometheus"
nomad_sd_configs:
- server: "http://{{env "attr.unique.network.ip-address"}}:4646"
relabel_configs:
- source_labels: [__meta_nomad_service]
regex: nomad-client-stalker
action: keep
- source_labels: [__meta_nomad_address]
replacement: "$1:4646"
target_label: __address__
- job_name: "nomad_services"
metrics_path: "/metrics"
nomad_sd_configs:
- server: "http://{{env "attr.unique.network.ip-address"}}:4646"
relabel_configs:
- source_labels: [__meta_nomad_tags]
regex: .*(prometheus.scrape).*
action: keep
- source_labels: [__meta_nomad_service_address,__meta_nomad_service_port]
separator: ":"
target_label: __address__
- source_labels: [__meta_nomad_service]
target_label: nomad_service
- source_labels: [__meta_nomad_dc]
target_label: nomad_dc
- source_labels: [__meta_nomad_node_id]
target_label: nomad_node_id
EOF
change_mode = "signal"
change_signal = "SIGHUP"
destination = "local/config/prometheus.yml"
}
resources {
cpu = 100
memory = 300
}
}
}
}