From 391abe42adf3bf065d9543ada068b696b00efdcd Mon Sep 17 00:00:00 2001
From: clarkzjw <i@jinwei.me>
Date: Fri, 24 Feb 2023 00:49:12 -0800
Subject: deploy: add krakend monitoring using influxdb and grafana

---
 contrib/docker-compose.yaml | 27 ++++++++++++++++++++++++++-
 contrib/influx/initdb.sh    | 16 ++++++++++++++++
 contrib/krakend.json        | 20 +++++++-------------
 3 files changed, 49 insertions(+), 14 deletions(-)
 create mode 100755 contrib/influx/initdb.sh

diff --git a/contrib/docker-compose.yaml b/contrib/docker-compose.yaml
index 3ca7981..8aeaff8 100644
--- a/contrib/docker-compose.yaml
+++ b/contrib/docker-compose.yaml
@@ -10,7 +10,7 @@ services:
       - "8080:8080"
 
   krakend:
-    image: "devopsfaith/krakend:latest"
+    image: "devopsfaith/krakend:2.2"
     restart: always
     ports:
       - "8081:8080"
@@ -18,5 +18,30 @@ services:
     volumes:
       - "./krakend.json:/etc/krakend/krakend.json"
 
+  influx:
+    image: influxdb:2.6.1
+    environment:
+      - "DOCKER_INFLUXDB_INIT_MODE=setup"
+      - "DOCKER_INFLUXDB_INIT_USERNAME=krakend"
+      - "DOCKER_INFLUXDB_INIT_PASSWORD=password"
+      - "DOCKER_INFLUXDB_INIT_ORG=my-org"
+      - "DOCKER_INFLUXDB_INIT_BUCKET=krakend"
+      - "DOCKER_INFLUXDB_INIT_RETENTION=1w"
+      - "DOCKER_INFLUXDB_INIT_ADMIN_TOKEN=my-super-secret-auth-token"
+    ports:
+      - "8086:8086"
+    volumes:
+      - "./influx/initdb.sh:/docker-entrypoint-initdb.d/initdb.sh"
+
+  grafana:
+    image: "grafana/grafana:9.3.6"
+    restart: always
+    ports:
+      - "3000:3000"
+    volumes:
+      - grafana:/var/lib/grafana
+
 volumes:
     sqlite3:
+    grafana:
+    influxdb:
diff --git a/contrib/influx/initdb.sh b/contrib/influx/initdb.sh
new file mode 100755
index 0000000..b1d07af
--- /dev/null
+++ b/contrib/influx/initdb.sh
@@ -0,0 +1,16 @@
+#!/bin/bash
+# The following script creates the authentication for Grafana
+# and is meant to be added to InfluxDB docker-compose.yml file.
+# image: influxdb
+# volumes:
+# - "./config/influx:/docker-entrypoint-initdb.d"
+set -e
+
+# Retrieve the ID from the bucket created during setup
+BUCKET_ID=$(influx bucket list | grep "$DOCKER_INFLUXDB_INIT_BUCKET" | awk '{print $1}')
+
+influx v1 auth create \
+  --username ${DOCKER_INFLUXDB_INIT_USERNAME} \
+  --password ${DOCKER_INFLUXDB_INIT_PASSWORD} \
+  --write-bucket ${BUCKET_ID} \
+  --org ${DOCKER_INFLUXDB_INIT_ORG}
diff --git a/contrib/krakend.json b/contrib/krakend.json
index 1f89340..2ed23d8 100644
--- a/contrib/krakend.json
+++ b/contrib/krakend.json
@@ -3,19 +3,13 @@
   "version": 3,
   "name": "Checkin.bot API",
   "extra_config": {
-    "telemetry/opencensus": {
-        "sample_rate": 100,
-        "reporting_period": 0,
-        "exporters": {
-          "prometheus": {
-              "port": 9091,
-              "namespace": "krakend",
-              "tag_host": false,
-              "tag_path": true,
-              "tag_method": true,
-              "tag_statuscode": false
-          }
-      }
+    "telemetry/influx": {
+      "address": "http://influx:8086",
+      "ttl": "25s",
+      "buffer_size": 100,
+      "db": "krakend",
+      "username": "krakend",
+      "password": "password"
     },
     "telemetry/metrics": {
       "collection_time": "60s",
-- 
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