基于godror 的 oracle prometheus exporter

iamseth/oracledb_exporter 是一个挺不错的 oracle prometheus exporter ，但是因为oracle golang 驱动的问题，不是很方便
（构建，使用），所以基于godror/godror 调整了一个版本（很简单，替换一个依赖包就可以了），以下是参考说明

修改的文件

go.mod

 

module github.com/iamseth/oracledb_exporter

​

go 1.14

​

require (

    github.com/BurntSushi/toml v0.3.1

    github.com/godror/godror v0.20.10

    github.com/prometheus/client_golang v1.0.0

    github.com/prometheus/common v0.6.0

    gopkg.in/alecthomas/kingpin.v2 v2.2.6

)

 

main.go

package main

​

import (

    "bytes"

    "context"

    "crypto/sha256"

    "database/sql"

    "errors"

    "hash"

    "io"

    "net/http"

    "os"

    "strconv"

    "strings"

    "sync"

    "time"

​

    "github.com/BurntSushi/toml"

​

    _ "github.com/godror/godror"

​

    "fmt"

​

    "github.com/prometheus/client_golang/prometheus"

    "github.com/prometheus/client_golang/prometheus/promhttp"

    "github.com/prometheus/common/log"

    "gopkg.in/alecthomas/kingpin.v2"

    //Required for debugging

    //_ "net/http/pprof"

)

 

Docker 镜像（基于oraclelinux）

FROM golang:1.15 AS build

WORKDIR /go/src/oracledb_exporter

ENV  GO111MODULE=on

ENV  GOPROXY=https://goproxy.cn

COPY . .

RUN go build -v -ldflags "-X main.Version=${VERSION} -s -w"

​

FROM oraclelinux:7-slim

ARG release=19

ARG update=9

RUN  yum -y install oracle-release-el7 && \

     yum -y install oracle-instantclient${release}.${update}-basic && \

     rm -rf /var/cache/yum && \

     yum clean all

COPY --from=build /go/src/oracledb_exporter/oracledb_exporter /oracledb_exporter

ADD ./default-metrics.toml /default-metrics.toml

EXPOSE 9161

ENTRYPOINT ["/oracledb_exporter"]

说明

具体的使用方法没变，还是以前的方法，只是构建以及使用简单了

参考资料

https://github.com/iamseth/oracledb_exporter
https://github.com/rongfengliang/oracledb_exporter
https://www.cnblogs.com/rongfengliang/p/14109740.html
https://github.com/godror/godror