deployment/docker: replace Prometheus with vmagent (#635)

* replace Prometheus with vmagent in docker compose env;
* cluster dashboard: exclude vmagent from job list;
* cluster dasbhoard: reference datasource var instead of datasource name.

dashboards/victoriametrics.json

@@ -1,20 +1,11 @@
 {
-  "__inputs": [
-    {
-      "name": "DS_PROMETHEUS",
-      "label": "Prometheus",
-      "description": "",
-      "type": "datasource",
-      "pluginId": "prometheus",
-      "pluginName": "Prometheus"
-    }
-  ],
+  "__inputs": [],
   "__requires": [
     {
       "type": "grafana",
       "id": "grafana",
       "name": "Grafana",
-      "version": "7.0.2"
+      "version": "7.0.3"
     },
     {
       "type": "panel",
@@ -59,7 +50,7 @@
   "gnetId": null,
   "graphTooltip": 0,
   "id": null,
-  "iteration": 1591987127262,
+  "iteration": 1594940971206,
   "links": [
     {
       "icon": "doc",
@@ -89,7 +80,7 @@
   "panels": [
     {
       "collapsed": false,
-      "datasource": "${DS_PROMETHEUS}",
+      "datasource": "$ds",
       "gridPos": {
         "h": 1,
         "w": 24,
@@ -1480,7 +1471,7 @@
     },
     {
       "collapsed": true,
-      "datasource": "${DS_PROMETHEUS}",
+      "datasource": "$ds",
       "gridPos": {
         "h": 1,
         "w": 24,
@@ -1946,7 +1937,7 @@
     },
     {
       "collapsed": true,
-      "datasource": "${DS_PROMETHEUS}",
+      "datasource": "$ds",
       "gridPos": {
         "h": 1,
         "w": 24,
@@ -2227,7 +2218,7 @@
     },
     {
       "collapsed": true,
-      "datasource": "${DS_PROMETHEUS}",
+      "datasource": "$ds",
       "gridPos": {
         "h": 1,
         "w": 24,
@@ -2914,7 +2905,7 @@
     },
     {
       "collapsed": true,
-      "datasource": "${DS_PROMETHEUS}",
+      "datasource": "$ds",
       "gridPos": {
         "h": 1,
         "w": 24,
@@ -3129,7 +3120,7 @@
     },
     {
       "collapsed": true,
-      "datasource": "${DS_PROMETHEUS}",
+      "datasource": "$ds",
       "gridPos": {
         "h": 1,
         "w": 24,
@@ -4052,7 +4043,7 @@
     },
     {
       "collapsed": true,
-      "datasource": "${DS_PROMETHEUS}",
+      "datasource": "$ds",
       "gridPos": {
         "h": 1,
         "w": 24,
@@ -4379,7 +4370,7 @@
     },
     {
       "collapsed": true,
-      "datasource": "${DS_PROMETHEUS}",
+      "datasource": "$ds",
       "gridPos": {
         "h": 1,
         "w": 24,
@@ -4894,14 +4885,14 @@
         "allValue": null,
         "current": {},
         "datasource": "$ds",
-        "definition": "label_values(vm_app_version{version=~\"^vm.*\"}, job)",
+        "definition": "label_values(vm_app_version{version=~\"^vm(insert|select|storage).*\"}, job)",
         "hide": 0,
         "includeAll": true,
         "label": null,
         "multi": true,
         "name": "job",
         "options": [],
-        "query": "label_values(vm_app_version{version=~\"^vm.*\"}, job)",
+        "query": "label_values(vm_app_version{version=~\"^vm(insert|select|storage).*\"}, job)",
         "refresh": 1,
         "regex": "",
         "skipUrlSync": false,
@@ -4938,6 +4929,10 @@
             "selected": false,
             "text": "vmstorage"
           },
+          {
+            "selected": false,
+            "text": "vmagent"
+          },
           {
             "selected": false,
             "text": "vminsert"

deployment/docker/docker-compose.yml

@@ -1,39 +1,33 @@
 version: '3.5'
 services:
-  prometheus:
-    container_name: prometheus
-    image: prom/prometheus:v2.19.1
+  vmagent:
+    container_name: vmagent
+    image: victoriametrics/vmagent
     depends_on:
-    - "vminsert"
-    - "vmselect"
+      - "vminsert"
     ports:
-      - 9090:9090
+      - 8429:8429
     volumes:
-      - promdata:/prometheus
+      - vmagentdata:/vmagentdata
       - ./prometheus.yml:/etc/prometheus/prometheus.yml
     command:
-      - '--config.file=/etc/prometheus/prometheus.yml'
-      - '--storage.tsdb.path=/prometheus'
+      - '--promscrape.config=/etc/prometheus/prometheus.yml'
+      - '--remoteWrite.url=http://vminsert:8480/insert/0/prometheus/'
     restart: always
 
   grafana:
     container_name: grafana
     image: grafana/grafana:7.0.3
-    entrypoint: >
-      /bin/sh -c "
-      cd /var/lib/grafana &&
-      mkdir -p dashboards &&
-      sed 's/$${DS_PROMETHEUS}/Prometheus/g' vm.json > dashboards/vm.json &&
-      /run.sh"
     depends_on:
-      - "prometheus"
+      - "vmselect"
     ports:
       - 3000:3000
     restart: always
     volumes:
       - grafanadata:/var/lib/grafana
       - ./provisioning/:/etc/grafana/provisioning/
-      - ./../../dashboards/victoriametrics.json:/var/lib/grafana/vm.json
+      - ./../../dashboards/victoriametrics.json:/var/lib/grafana/dashboards/vm.json
+      - ./../../dashboards/vmagent.json:/var/lib/grafana/dashboards/vmagent.json
 
   vmstorage:
     container_name: vmstorage
@@ -71,6 +65,6 @@ services:
     restart: always
 
 volumes:
-  promdata: {}
+  vmagentdata: {}
   strgdata: {}
   grafanadata: {}

deployment/docker/prometheus.yml

@@ -2,13 +2,10 @@ global:
   scrape_interval:     1s
   evaluation_interval: 1s
 
-remote_write:
-  - url: "http://vminsert:8480/insert/0/prometheus/"
-
 scrape_configs:
-  - job_name: 'prometheus'
+  - job_name: 'vmagent'
     static_configs:
-      - targets: ['prometheus:9090']
+      - targets: ['vmagent:8429']
 
   - job_name: 'vminsert'
     static_configs:

deployment/docker/provisioning/datasources/datasource.yml

@@ -1,14 +1,8 @@
 apiVersion: 1
 
 datasources:
-  - name: Prometheus
-    type: prometheus
-    access: proxy
-    url: http://prometheus:9090
-    isDefault: true
-
   - name: VictoriaMetrics
     type: prometheus
     access: proxy
     url: http://vmselect:8481/select/0/prometheus
-    isDefault: false
+    isDefault: true