prometheus监控tomcat
制作tomcat镜像
[root@k8s-master tomcat-image]# ll
total 473764
-rwxr-xr-x 1 root root 126 Aug 11 18:06 build-command.sh
-rw-r--r-- 1 root root 697 Jun 12 15:59 Dockerfile
-rw-r--r-- 1 root root 3405 Dec 17 2021 metrics.war
drwxr-xr-x 2 root root 4096 Jun 12 15:51 myapp
-rw-r--r-- 1 root root 175 Jul 16 2021 myapp.tar.gz
-rwxr-xr-x 1 root root 125 Jul 16 2021 run_tomcat.sh
-rw-r--r-- 1 root root 7592 Jul 16 2021 server.xml
-rw-r--r-- 1 root root 59477 Dec 17 2021 simpleclient-0.8.0.jar
-rw-r--r-- 1 root root 5840 Dec 17 2021 simpleclient_common-0.8.0.jar
-rw-r--r-- 1 root root 21767 Dec 17 2021 simpleclient_hotspot-0.8.0.jar
-rw-r--r-- 1 root root 7104 Dec 17 2021 simpleclient_servlet-0.8.0.jar
-rw-r--r-- 1 root root 484967424 Dec 17 2021 tomcat-8.5.73-jdk11-corretto.tar.gz
-rw-r--r-- 1 root root 19582 Dec 17 2021 tomcat_exporter_client-0.0.12.jar
-rw-r--r-- 1 root root 3405 Dec 17 2021 tomcat_exporter_servlet-0.0.12.war
[root@k8s-master tomcat-image]# cat build-command.sh
#!/bin/bash
docker build -t harbor.yangzhenyu.com/yzy/tomcat-app1:v1 .
docker push harbor.yangzhenyu.com/yzy/tomcat-app1:v1
[root@k8s-master tomcat-image]# cat Dockerfile
#FROM tomcat:8.5.73-jdk11-corretto
FROM tomcat:8.5.73
LABEL maintainer="jack 2973707860@qq.com"
ADD server.xml /usr/local/tomcat/conf/server.xml
RUN mkdir /data/tomcat/webapps -p
ADD myapp /data/tomcat/webapps/myapp
ADD metrics.war /data/tomcat/webapps
ADD simpleclient-0.8.0.jar /usr/local/tomcat/lib/
ADD simpleclient_common-0.8.0.jar /usr/local/tomcat/lib/
ADD simpleclient_hotspot-0.8.0.jar /usr/local/tomcat/lib/
ADD simpleclient_servlet-0.8.0.jar /usr/local/tomcat/lib/
ADD tomcat_exporter_client-0.0.12.jar /usr/local/tomcat/lib/
#ADD run_tomcat.sh /apps/tomcat/bin/
EXPOSE 8080 8443 8009
CMD ["/usr/local/tomcat/bin/catalina.sh","run"]
#CMD ["/apps/tomcat/bin/run_tomcat.sh"]制作镜像将镜像传输到自己的harbor
bash build-command.sh在k8s中启动tomcat
[root@k8s-master yaml]# cat tomcat-deploy.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: tomcat-deployment
namespace: yangzhenyu
spec:
selector:
matchLabels:
app: tomcat
replicas: 1 # tells deployment to run 2 pods matching the template
template: # create pods using pod definition in this template
metadata:
labels:
app: tomcat
annotations:
prometheus.io/scrape: 'true'
spec:
containers:
- name: tomcat
image: harbor.yangzhenyu.com/yzy/tomcat-app1:v1
ports:
- containerPort: 8080
securityContext:
privileged: true
[root@k8s-master yaml]# cat tomcat-svc.yaml
kind: Service #service 类型
apiVersion: v1
metadata:
annotations:
prometheus.io/scrape: 'true'
name: tomcat-service
namespace: yangzhenyu
spec:
selector:
app: tomcat
ports:
- nodePort: 30080
port: 80
protocol: TCP
targetPort: 8080
type: NodePort浏览器访问http://10.211.55.20:30080/metrics/，如果有数据就是正常的
看下是否正常 http://10.211.55.20:30080/myapp/
编辑prometheus.yml
- job_name: "prometheus-tomcat-metrics"
static_configs:
- targets: ["10.211.55.20:30080"]重启prometheus
systemctl restart prometheus访问prometheus可以看到tomcat监控数据了
Grafana导入模板
copy下面地址json文件
https://github.com/nlighten/tomcat_exporter/blob/master/dashboard/example.json
查看代码
{
"__inputs": [
{
"name": "DS_PROMETHEUS",
"label": "Prometheus",
"description": "",
"type": "datasource",
"pluginId": "prometheus",
"pluginName": "Prometheus"
}
],
"__requires": [
{
"type": "grafana",
"id": "grafana",
"name": "Grafana",
"version": "7.3.6"
},
{
"type": "panel",
"id": "graph",
"name": "Graph",
"version": ""
},
{
"type": "panel",
"id": "heatmap",
"name": "Heatmap",
"version": ""
},
{
"type": "datasource",
"id": "prometheus",
"name": "Prometheus",
"version": "1.0.0"
},
{
"type": "panel",
"id": "stat",
"name": "Stat",
"version": ""
},
{
"type": "panel",
"id": "table",
"name": "Table",
"version": ""
},
{
"type": "panel",
"id": "text",
"name": "Text",
"version": ""
}
],
"annotations": {
"list": [
{
"builtIn": 1,
"datasource": "-- Grafana --",
"enable": true,
"hide": true,
"iconColor": "rgba(0, 211, 255, 1)",
"name": "Annotations & Alerts",
"type": "dashboard"
}
]
},
"editable": true,
"gnetId": null,
"graphTooltip": 1,
"id": null,
"iteration": 1633634435078,
"links": [],
"panels": [
{
"collapsed": false,
"datasource": "${DS_PROMETHEUS}",
"gridPos": {
"h": 1,
"w": 24,
"x": 0,
"y": 0
},
"id": 25,
"panels": [],
"title": "General Info",
"type": "row"
},
{
"datasource": "${DS_PROMETHEUS}",
"fieldConfig": {
"defaults": {
"custom": {},
"mappings": [
{
"from": "-999999999999999",
"id": 1,
"text": "N/A",
"to": "0",
"type": 2,
"value": "<0"
}
],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
}
]
}
},
"overrides": []
},
"gridPos": {
"h": 3,
"w": 3,
"x": 0,
"y": 1
},
"id": 51,
"options": {
"colorMode": "value",
"graphMode": "area",
"justifyMode": "auto",
"orientation": "auto",
"reduceOptions": {
"calcs": [
"mean"
],
"fields": "",
"values": false
},
"textMode": "name"
},
"pluginVersion": "7.3.6",
"targets": [
{
"expr": "jvm_info{instance=\"$node\",job=\"$job\"}",
"format": "time_series",
"instant": true,
"interval": "",
"legendFormat": "{{vendor}}",
"refId": "A"
}
],
"timeFrom": null,
"timeShift": null,
"title": "JVM Runtime Vendor",
"type": "stat"
},
{
"datasource": "${DS_PROMETHEUS}",
"fieldConfig": {
"defaults": {
"custom": {},
"mappings": [
{
"from": "-999999999999999",
"id": 1,
"text": "N/A",
"to": "0",
"type": 2,
"value": "<0"
}
],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
}
]
}
},
"overrides": []
},
"gridPos": {
"h": 3,
"w": 6,
"x": 3,
"y": 1
},
"id": 49,
"options": {
"colorMode": "value",
"graphMode": "area",
"justifyMode": "auto",
"orientation": "auto",
"reduceOptions": {
"calcs": [
"mean"
],
"fields": "",
"values": false
},
"textMode": "name"
},
"pluginVersion": "7.3.6",
"targets": [
{
"expr": "jvm_info{instance=\"$node\",job=\"$job\"}",
"format": "time_series",
"instant": true,
"interval": "",
"legendFormat": "{{runtime}}",
"refId": "A"
}
],
"timeFrom": null,
"timeShift": null,
"title": "JVM Runtime",
"type": "stat"
},
{
"datasource": "${DS_PROMETHEUS}",
"fieldConfig": {
"defaults": {
"custom": {},
"mappings": [
{
"from": "-999999999999999",
"id": 1,
"text": "N/A",
"to": "0",
"type": 2,
"value": "<0"
}
],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
}
]
}
},
"overrides": []
},
"gridPos": {
"h": 3,
"w": 3,
"x": 9,
"y": 1
},
"id": 50,
"options": {
"colorMode": "value",
"graphMode": "area",
"justifyMode": "auto",
"orientation": "auto",
"reduceOptions": {
"calcs": [
"mean"
],
"fields": "",
"values": false
},
"textMode": "name"
},
"pluginVersion": "7.3.6",
"targets": [
{
"expr": "jvm_info{instance=\"$node\",job=\"$job\"}",
"format": "time_series",
"instant": true,
"interval": "",
"legendFormat": "{{version}}",
"refId": "A"
}
],
"timeFrom": null,
"timeShift": null,
"title": "JVM Runtime Version",
"type": "stat"
},
{
"datasource": "${DS_PROMETHEUS}",
"fieldConfig": {
"defaults": {
"custom": {},
"mappings": [
{
"from": "-999999999999999",
"id": 1,
"text": "N/A",
"to": "0",
"type": 2,
"value": "<0"
}
],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
}
]
}
},
"overrides": []
},
"gridPos": {
"h": 3,
"w": 3,
"x": 12,
"y": 1
},
"id": 22,
"options": {
"colorMode": "value",
"graphMode": "area",
"justifyMode": "auto",
"orientation": "auto",
"reduceOptions": {
"calcs": [
"mean"
],
"fields": "",
"values": false
},
"textMode": "auto"
},
"pluginVersion": "7.3.6",
"targets": [
{
"expr": "(time()-(process_start_time_seconds{instance=\"$node\",job=\"$job\"})) /60/60",
"format": "table",
"instant": true,
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"timeFrom": null,
"timeShift": null,
"title": "JVM Uptime Hrs",
"type": "stat"
},
{
"datasource": "${DS_PROMETHEUS}",
"description": "The number of classes that are currently loaded in the JVM",
"fieldConfig": {
"defaults": {
"custom": {},
"mappings": [
{
"from": "-999999999999999",
"id": 1,
"text": "N/A",
"to": "0",
"type": 2,
"value": "<0"
}
],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
}
]
}
},
"overrides": []
},
"gridPos": {
"h": 3,
"w": 3,
"x": 15,
"y": 1
},
"id": 46,
"options": {
"colorMode": "value",
"graphMode": "area",
"justifyMode": "auto",
"orientation": "auto",
"reduceOptions": {
"calcs": [
"mean"
],
"fields": "",
"values": false
},
"textMode": "auto"
},
"pluginVersion": "7.3.6",
"targets": [
{
"expr": "jvm_classes_loaded{instance=\"$node\",job=\"$job\"}",
"format": "table",
"instant": true,
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"timeFrom": null,
"timeShift": null,
"title": "JVM Classes Loaded",
"type": "stat"
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": "${DS_PROMETHEUS}",
"description": "Indication if the lifecycle state of this context is STARTED",
"fieldConfig": {
"defaults": {
"custom": {}
},
"overrides": []
},
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 8,
"w": 12,
"x": 0,
"y": 4
},
"hiddenSeries": false,
"id": 34,
"legend": {
"avg": false,
"current": false,
"max": false,
"min": false,
"show": true,
"total": false,
"values": false
},
"lines": true,
"linewidth": 1,
"nullPointMode": "null",
"options": {
"alertThreshold": true
},
"percentage": false,
"pluginVersion": "7.3.6",
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "tomcat_context_state_started{instance=\"$node\",job=\"$job\"}",
"interval": "",
"intervalFactor": 1,
"legendFormat": "{{context}}",
"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "Application Contexts Started",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": "${DS_PROMETHEUS}",
"description": "Count of JVM garbage collector runs",
"fieldConfig": {
"defaults": {
"custom": {}
},
"overrides": []
},
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 8,
"w": 12,
"x": 0,
"y": 12
},
"hiddenSeries": false,
"id": 47,
"legend": {
"avg": false,
"current": false,
"max": false,
"min": false,
"show": true,
"total": false,
"values": false
},
"lines": true,
"linewidth": 1,
"nullPointMode": "null",
"options": {
"alertThreshold": true
},
"percentage": false,
"pluginVersion": "7.3.6",
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "rate(jvm_gc_collection_seconds_count{instance=\"$node\",job=\"$job\"}[1m])*100",
"interval": "",
"intervalFactor": 1,
"legendFormat": "{{gc}}",
"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "Garbage Collection Runs /sec over 1 min",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": "${DS_PROMETHEUS}",
"description": "Time spent in a given JVM garbage collector in seconds.",
"fieldConfig": {
"defaults": {
"custom": {}
},
"overrides": []
},
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 8,
"w": 12,
"x": 0,
"y": 20
},
"hiddenSeries": false,
"id": 48,
"legend": {
"avg": false,
"current": false,
"max": false,
"min": false,
"show": true,
"total": false,
"values": false
},
"lines": true,
"linewidth": 1,
"nullPointMode": "null",
"options": {
"alertThreshold": true
},
"percentage": false,
"pluginVersion": "7.3.6",
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "rate(jvm_gc_collection_seconds_sum{instance=\"$node\",job=\"$job\"}[1m])*100",
"interval": "",
"intervalFactor": 1,
"legendFormat": "{{gc}}",
"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "GC time in sec over 1 min",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
},
{
"cards": {
"cardPadding": null,
"cardRound": null
},
"color": {
"cardColor": "#b4ff00",
"colorScale": "sqrt",
"colorScheme": "interpolateOranges",
"exponent": 0.5,
"mode": "spectrum"
},
"dataFormat": "timeseries",
"datasource": "${DS_PROMETHEUS}",
"description": "JVM garbage run times",
"fieldConfig": {
"defaults": {
"custom": {
"align": null,
"filterable": false
},
"mappings": [],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "red",
"value": 80
}
]
}
},
"overrides": []
},
"gridPos": {
"h": 8,
"w": 12,
"x": 0,
"y": 28
},
"heatmap": {},
"hideZeroBuckets": false,
"highlightCards": true,
"id": 52,
"legend": {
"show": false
},
"pluginVersion": "7.3.6",
"reverseYBuckets": false,
"targets": [
{
"expr": "(rate(jvm_gc_collection_seconds_sum{instance=\"$node\",job=\"$job\"}[1m])*100 / rate(jvm_gc_collection_seconds_count{instance=\"$node\",job=\"$job\"}[1m])*100)",
"instant": false,
"interval": "",
"intervalFactor": 1,
"legendFormat": "{{gc}}",
"refId": "A"
}
],
"timeFrom": null,
"timeShift": null,
"title": "Avg Time (ms) / GC 1 minute rate",
"tooltip": {
"show": true,
"showHistogram": false
},
"type": "heatmap",
"xAxis": {
"show": true
},
"xBucketNumber": null,
"xBucketSize": null,
"yAxis": {
"decimals": null,
"format": "short",
"logBase": 1,
"max": null,
"min": null,
"show": true,
"splitFactor": null
},
"yBucketBound": "auto",
"yBucketNumber": null,
"yBucketSize": null
},
{
"collapsed": true,
"datasource": "${DS_PROMETHEUS}",
"gridPos": {
"h": 1,
"w": 24,
"x": 0,
"y": 36
},
"id": 5,
"panels": [
{
"datasource": "${DS_PROMETHEUS}",
"description": "Started thread count of a JVM",
"fieldConfig": {
"defaults": {
"custom": {},
"mappings": [
{
"from": "-999999999999999",
"id": 1,
"text": "N/A",
"to": "0",
"type": 2,
"value": "<0"
}
],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
}
]
}
},
"overrides": []
},
"gridPos": {
"h": 4,
"w": 3,
"x": 0,
"y": 37
},
"id": 18,
"options": {
"colorMode": "value",
"graphMode": "area",
"justifyMode": "auto",
"orientation": "auto",
"reduceOptions": {
"calcs": [
"mean"
],
"fields": "",
"values": false
},
"textMode": "auto"
},
"pluginVersion": "7.3.6",
"targets": [
{
"expr": "jvm_threads_started_total{instance=\"$node\",job=\"$job\"}",
"format": "table",
"instant": true,
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"timeFrom": null,
"timeShift": null,
"title": "JVM Threads Started Total",
"type": "stat"
},
{
"datasource": "${DS_PROMETHEUS}",
"description": "Current thread count of a JVM",
"fieldConfig": {
"defaults": {
"custom": {},
"mappings": [
{
"from": "-999999999999999",
"id": 1,
"text": "N/A",
"to": "0",
"type": 2,
"value": "<0"
}
],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
}
]
}
},
"overrides": []
},
"gridPos": {
"h": 4,
"w": 3,
"x": 3,
"y": 37
},
"id": 20,
"options": {
"colorMode": "value",
"graphMode": "area",
"justifyMode": "auto",
"orientation": "auto",
"reduceOptions": {
"calcs": [
"mean"
],
"fields": "",
"values": false
},
"textMode": "auto"
},
"pluginVersion": "7.3.6",
"targets": [
{
"expr": "jvm_threads_current{instance=\"$node\",job=\"$job\"}",
"format": "table",
"instant": true,
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"timeFrom": null,
"timeShift": null,
"title": "JVM Threads Current",
"type": "stat"
},
{
"datasource": "${DS_PROMETHEUS}",
"description": "Peak thread count of a JVM",
"fieldConfig": {
"defaults": {
"custom": {},
"mappings": [
{
"from": "-999999999999999",
"id": 1,
"text": "N/A",
"to": "0",
"type": 2,
"value": "<0"
}
],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
}
]
}
},
"overrides": []
},
"gridPos": {
"h": 4,
"w": 3,
"x": 6,
"y": 37
},
"id": 19,
"options": {
"colorMode": "value",
"graphMode": "area",
"justifyMode": "auto",
"orientation": "auto",
"reduceOptions": {
"calcs": [
"mean"
],
"fields": "",
"values": false
},
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