Add script to configure metrics and log collection from a local node (#…

…3517)

scripts/configure-local-metrics-collection.sh

@@ -0,0 +1,54 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+# Configures prometheus and promtail to collect metrics and logs from
+# a local node.
+
+API_PORT="${API_PORT:-9650}"
+
+LOGS_PATH="${LOGS_PATH:-${HOME}/.avalanchego/logs}"
+
+# Generate a uuid to uniquely identify the collected metrics
+METRICS_UUID="$(uuidgen)"
+
+echo "Configuring metrics and log collection for a local node with API port ${API_PORT} and logs path ${LOGS_PATH}"
+
+PROMETHEUS_CONFIG_PATH="${HOME}/.tmpnet/prometheus/file_sd_configs"
+PROMETHEUS_CONFIG_FILE="${PROMETHEUS_CONFIG_PATH}/local.json"
+mkdir -p "${PROMETHEUS_CONFIG_PATH}"
+cat > "${PROMETHEUS_CONFIG_FILE}" <<EOL
+[
+  {
+    "labels": {
+      "network_uuid": "${METRICS_UUID}"
+    },
+    "targets": [
+      "127.0.0.1:${API_PORT}"
+    ]
+  }
+]
+EOL
+echo "Wrote prometheus configuration to ${PROMETHEUS_CONFIG_FILE}"
+
+PROMTAIL_CONFIG_PATH="${HOME}/.tmpnet/promtail/file_sd_configs"
+PROMTAIL_CONFIG_FILE="${PROMTAIL_CONFIG_PATH}/local.json"
+mkdir -p "${PROMTAIL_CONFIG_PATH}"
+cat > "${PROMTAIL_CONFIG_FILE}" <<EOL
+[
+  {
+    "labels": {
+      "__path__": "${LOGS_PATH}/*.log",
+      "network_uuid": "${METRICS_UUID}"
+    },
+    "targets": [
+      "localhost"
+    ]
+  }
+]
+EOL
+echo "Wrote promtail configuration to ${PROMTAIL_CONFIG_FILE}"
+
+echo "Metrics collection by prometheus can be started with ./scripts/run_prometheus.sh"
+echo "Log collection by promtail can be started with ./scripts/run_promtail.sh"
+echo "Grafana link: https://grafana-poc.avax-dev.network/d/kBQpRdWnk/avalanche-main-dashboard?var-filter=network_uuid%7C%3D%7C${METRICS_UUID}"