使用docker轻量化部署snmp agent（SNMPv2访问）

2024-01-01 19:04
文章标签 部署 访问 使用 docker agent snmp 轻量化 snmpv2

本文主要是介绍使用docker轻量化部署snmp agent（SNMPv2访问），希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

文章目录

  • 服务器环境说明
  • 单机部署（非挂载conf文件版）
    • debian:buster-slim容器简介
    • 实现步骤
      • 创建Dockerfile
      • 创建SNMP配置文件 (snmpd.conf)
      • 构建Docker镜像
      • 运行Docker容器
    • 注意
    • 补充
      • 复制容器文件到本地
      • 容器、镜像操作
  • 单机部署（挂载conf文件版）
  • 批量部署
    • 说明
    • 创建Dockerfile
    • 创建SNMP配置文件 (snmpd.conf)
    • 构建Docker镜像
    • 编辑python脚本命令
    • 执行脚本
    • 启动所有服务
    • 批量删除命令

服务器环境说明

  • linux宿主系统为centos7
  • 提前安装docker环境，并注意配置国内镜像源
  • 推荐使用1panel管理面板进行可视化操作和容器管理
  • 记得关闭防火墙，简化操作
  • 项目源码地址

单机部署（非挂载conf文件版）

debian:buster-slim容器简介

  • Debian是一个流行的Linux发行版之一，而"Buster"是Debian的代号，用于代表其发布版本号的名称。"Slim"版本的Docker镜像是指一个精简过的、轻量级的Debian Buster镜像.
  • Debian Buster Slim镜像的主要特点包括：
    1. 精简尺寸: Slim版本的镜像相比标准版本会更小，删除一些不必要的软件包和组件。
    2. 最小化安装: 这些镜像通常只包含操作系统的核心组件和必要的软件，以最大程度地减少容器的大小和资源占用。
    3. 适合特定用途: 适合作为基础镜像用于构建应用程序或服务。由于其精简的特性，它们常用于需要高度可控和安全性的容器环境中。

实现步骤

创建Dockerfile

  • 创建一个Dockerfile，用于构建一个包含SNMP服务的Docker镜像。
# 使用Debian的slim版本作为基础镜像
FROM debian:buster-slim
# 设置清华大学TUNA镜像源
RUN sed -i 's/deb.debian.org/mirrors.tuna.tsinghua.edu.cn/g' /etc/apt/sources.list \&& sed -i 's/security.debian.org/mirrors.tuna.tsinghua.edu.cn/g' /etc/apt/sources.list \&& apt-get update && apt-get install -y snmp snmpd# 使用非自由软件包源(non-free repositories)来安装完整的MIB包
RUN sed -i 's/main/main non-free/' /etc/apt/sources.list \&& apt-get update && apt-get install -y snmp-mibs-downloader# 拷贝SNMPD配置文件到容器中
COPY snmpd.conf /etc/snmp/# 开放161端口，SNMP标准端口
EXPOSE 161/udp# 启动snmpd服务
CMD [ "snmpd", "-f", "-Lo" ]

创建SNMP配置文件 (snmpd.conf)

  • SNMP配置文件来配置snmpd服务,基于debian:buster-slim中默认snmp.conf文件修改而来，这里给出完整的内容，大家可以在此基础上进行完善和修改
###############################################################################
#
# EXAMPLE.conf:
#   An example configuration file for configuring the Net-SNMP agent ('snmpd')
#   See the 'snmpd.conf(5)' man page for details
#
#  Some entries are deliberately commented out, and will need to be explicitly activated
#
###############################################################################
#
#  AGENT BEHAVIOUR
##  Listen for connections from the local system only
#agentAddress  udp:127.0.0.1:161
#  Listen for connections on all interfaces (both IPv4 *and* IPv6)
#agentAddress udp:161,udp6:[::1]:161
agentAddress udp:161###############################################################################
#
#  SNMPv3 AUTHENTICATION
#
#  Note that these particular settings don't actually belong here.
#  They should be copied to the file /var/lib/snmp/snmpd.conf
#     and the passwords changed, before being uncommented in that file *only*.
#  Then restart the agent#  createUser authOnlyUser  MD5 "remember to change this password"
#  createUser authPrivUser  SHA "remember to change this one too"  DES
#  createUser internalUser  MD5 "this is only ever used internally, but still change the password"#  If you also change the usernames (which might be sensible),
#  then remember to update the other occurances in this example config file to match.###############################################################################
#
#  ACCESS CONTROL
##  system + hrSystem groups only
view   systemonly  included   .1.3.6.1.2.1.1
view   systemonly  included   .1.3.6.1.2.1.25.1#  Full access from the local host
#rocommunity public  localhost
#  Default access to basic system info
rocommunity public  default    -V systemonly
#  rocommunity6 is for IPv6
rocommunity6 public  default   -V systemonly#  Full access from an example network#     Adjust this network address to match your local#     settings, change the community string,#     and check the 'agentAddress' setting above
#rocommunity secret  10.0.0.0/16#  Full read-only access for SNMPv3rouser   authOnlyUser
#  Full write access for encrypted requests
#     Remember to activate the 'createUser' lines above
#rwuser   authPrivUser   priv#  It's no longer typically necessary to use the full 'com2sec/group/access' configuration
#  r[ow]user and r[ow]community, together with suitable views, should cover most requirements###############################################################################
#
#  SYSTEM INFORMATION
##  Note that setting these values here, results in the corresponding MIB objects being 'read-only'
#  See snmpd.conf(5) for more details
sysLocation    Sitting on the Dock of the Bay
sysContact     Me <me@example.org># Application + End-to-End layers
sysServices    72#
#  Process Monitoring
#
# At least one  'mountd' process
proc  mountd
# No more than 4 'ntalkd' processes - 0 is OK
proc  ntalkd    4
# At least one 'sendmail' process, but no more than 10
proc  sendmail 10 1#  Walk the UCD-SNMP-MIB::prTable to see the resulting output
#  Note that this table will be empty if there are no "proc" entries in the snmpd.conf file#
#  Disk Monitoring
#
# 10MBs required on root disk, 5% free on /var, 10% free on all other disks
disk       /     10000
disk       /var  5%
includeAllDisks  10%#  Walk the UCD-SNMP-MIB::dskTable to see the resulting output
#  Note that this table will be empty if there are no "disk" entries in the snmpd.conf file#
#  System Load
#
# Unacceptable 1-, 5-, and 15-minute load averages
load   12 10 5#  Walk the UCD-SNMP-MIB::laTable to see the resulting output
#  Note that this table *will* be populated, even without a "load" entry in the snmpd.conf file###############################################################################
#
#  ACTIVE MONITORING
##   send SNMPv1  traps
trapsink     localhost public
#   send SNMPv2c traps
#trap2sink    localhost public
#   send SNMPv2c INFORMs
#informsink   localhost public#  Note that you typically only want *one* of these three lines
#  Uncommenting two (or all three) will result in multiple copies of each notification.#
#  Event MIB - automatically generate alerts
#
# Remember to activate the 'createUser' lines above
iquerySecName   internalUser       
rouser          internalUser
# generate traps on UCD error conditions
defaultMonitors          no
# generate traps on linkUp/Down
linkUpDownNotifications  yes###############################################################################
#
#  EXTENDING THE AGENT
##
#  Arbitrary extension commands
#extend    test1   /bin/echo  Hello, world!extend-sh test2   echo Hello, world! ; echo Hi there ; exit 35
#extend-sh test3   /bin/sh /tmp/shtest#  Note that this last entry requires the script '/tmp/shtest' to be created first,
#    containing the same three shell commands, before the line is uncommented#  Walk the NET-SNMP-EXTEND-MIB tables (nsExtendConfigTable, nsExtendOutput1Table
#     and nsExtendOutput2Table) to see the resulting output#  Note that the "extend" directive supercedes the previous "exec" and "sh" directives
#  However, walking the UCD-SNMP-MIB::extTable should still returns the same output,
#     as well as the fuller results in the above tables.#
#  "Pass-through" MIB extension command
#
#pass .1.3.6.1.4.1.8072.2.255  /bin/sh       PREFIX/local/passtest
#pass .1.3.6.1.4.1.8072.2.255  /usr/bin/perl PREFIX/local/passtest.pl# Note that this requires one of the two 'passtest' scripts to be installed first,
#    before the appropriate line is uncommented.
# These scripts can be found in the 'local' directory of the source distribution,
#     and are not installed automatically.#  Walk the NET-SNMP-PASS-MIB::netSnmpPassExamples subtree to see the resulting output#
#  AgentX Sub-agents
#
#  Run as an AgentX master agentmaster          agentx
#  Listen for network connections (from localhost)
#    rather than the default named socket /var/agentx/master
#agentXSocket    tcp:localhost:705

构建Docker镜像

docker build -t snmp-router .

运行Docker容器

docker run -d --name=snmp-router-1 -p 1610:161/udp snmp-router

注意

  • snmpd.conf配置文件145一定要配置为no,因为容器中系统服务不完整
    # generate traps on UCD error conditions
defaultMonitors          no
  • 否则会导致报错
    /etc/snmp/snmpd.conf: line 145: Error: unknown monitor OID

补充

复制容器文件到本地

  1. 找到容器的ID或名称:
    docker ps
  2. 复制文件:
    docker cp <container_id_or_name>:/path/to/snmpd.conf /path/to/destination
  • 例如：
    docker cp my-snmp-container:/etc/snmp/snmpd.conf ./snmpd.conf

容器、镜像操作

# 停止容器
docker stop s<container_name_or_id>
# 删除容器
docker rm <container_name_or_id>
# 删除镜像
docker rmi <container_name_or_id>

单机部署（挂载conf文件版）

  • 整体步骤与单机部署（非挂载conf文件版）相同，只是在Dockerfile内容和运行Docker容器不同
  1. Dockerfile
# 使用Debian的slim版本作为基础镜像
FROM debian:buster-slim
# 设置清华大学TUNA镜像源
RUN sed -i 's/deb.debian.org/mirrors.tuna.tsinghua.edu.cn/g' /etc/apt/sources.list \&& sed -i 's/security.debian.org/mirrors.tuna.tsinghua.edu.cn/g' /etc/apt/sources.list \&& apt-get update && apt-get install -y snmp snmpd# 使用非自由软件包源(non-free repositories)来安装完整的MIB包
RUN sed -i 's/main/main non-free/' /etc/apt/sources.list \&& apt-get update && apt-get install -y snmp-mibs-downloader
# 开放161端口，SNMP标准端口
EXPOSE 161/udp# 启动snmpd服务
CMD [ "snmpd", "-f", "-Lo" ]
  1. 运行Docker容器命令
docker run -d --name=snmp-router-1 -p 1610:161/udp -v /path/to/snmpd.conf:/etc/snmp/snmpd.conf snmp-router

批量部署

说明

  • 脚本执行需要python环境
sudo yum update
sudo yum install python3
python3 --version

创建Dockerfile

  • 创建一个Dockerfile，用于构建一个包含SNMP服务的Docker镜像。
# 使用Debian的slim版本作为基础镜像
FROM debian:buster-slim
# 设置清华大学TUNA镜像源
RUN sed -i 's/deb.debian.org/mirrors.tuna.tsinghua.edu.cn/g' /etc/apt/sources.list \&& sed -i 's/security.debian.org/mirrors.tuna.tsinghua.edu.cn/g' /etc/apt/sources.list \&& apt-get update && apt-get install -y snmp snmpd# 使用非自由软件包源(non-free repositories)来安装完整的MIB包
RUN sed -i 's/main/main non-free/' /etc/apt/sources.list \&& apt-get update && apt-get install -y snmp-mibs-downloader# 拷贝SNMPD配置文件到容器中
COPY snmpd.conf /etc/snmp/# 开放161端口，SNMP标准端口
EXPOSE 161/udp# 启动snmpd服务
CMD [ "snmpd", "-f", "-Lo" ]

创建SNMP配置文件 (snmpd.conf)

  • SNMP配置文件来配置snmpd服务,基于debian:buster-slim中默认snmp.conf文件修改而来，这里给出完整的内容，大家可以在此基础上进行完善和修改
###############################################################################
#
# EXAMPLE.conf:
#   An example configuration file for configuring the Net-SNMP agent ('snmpd')
#   See the 'snmpd.conf(5)' man page for details
#
#  Some entries are deliberately commented out, and will need to be explicitly activated
#
###############################################################################
#
#  AGENT BEHAVIOUR
##  Listen for connections from the local system only
#agentAddress  udp:127.0.0.1:161
#  Listen for connections on all interfaces (both IPv4 *and* IPv6)
#agentAddress udp:161,udp6:[::1]:161
agentAddress udp:161###############################################################################
#
#  SNMPv3 AUTHENTICATION
#
#  Note that these particular settings don't actually belong here.
#  They should be copied to the file /var/lib/snmp/snmpd.conf
#     and the passwords changed, before being uncommented in that file *only*.
#  Then restart the agent#  createUser authOnlyUser  MD5 "remember to change this password"
#  createUser authPrivUser  SHA "remember to change this one too"  DES
#  createUser internalUser  MD5 "this is only ever used internally, but still change the password"#  If you also change the usernames (which might be sensible),
#  then remember to update the other occurances in this example config file to match.###############################################################################
#
#  ACCESS CONTROL
##  system + hrSystem groups only
view   systemonly  included   .1.3.6.1.2.1.1
view   systemonly  included   .1.3.6.1.2.1.25.1#  Full access from the local host
#rocommunity public  localhost
#  Default access to basic system info
rocommunity public  default    -V systemonly
#  rocommunity6 is for IPv6
rocommunity6 public  default   -V systemonly#  Full access from an example network#     Adjust this network address to match your local#     settings, change the community string,#     and check the 'agentAddress' setting above
#rocommunity secret  10.0.0.0/16#  Full read-only access for SNMPv3rouser   authOnlyUser
#  Full write access for encrypted requests
#     Remember to activate the 'createUser' lines above
#rwuser   authPrivUser   priv#  It's no longer typically necessary to use the full 'com2sec/group/access' configuration
#  r[ow]user and r[ow]community, together with suitable views, should cover most requirements###############################################################################
#
#  SYSTEM INFORMATION
##  Note that setting these values here, results in the corresponding MIB objects being 'read-only'
#  See snmpd.conf(5) for more details
sysLocation    Sitting on the Dock of the Bay
sysContact     Me <me@example.org># Application + End-to-End layers
sysServices    72#
#  Process Monitoring
#
# At least one  'mountd' process
proc  mountd
# No more than 4 'ntalkd' processes - 0 is OK
proc  ntalkd    4
# At least one 'sendmail' process, but no more than 10
proc  sendmail 10 1#  Walk the UCD-SNMP-MIB::prTable to see the resulting output
#  Note that this table will be empty if there are no "proc" entries in the snmpd.conf file#
#  Disk Monitoring
#
# 10MBs required on root disk, 5% free on /var, 10% free on all other disks
disk       /     10000
disk       /var  5%
includeAllDisks  10%#  Walk the UCD-SNMP-MIB::dskTable to see the resulting output
#  Note that this table will be empty if there are no "disk" entries in the snmpd.conf file#
#  System Load
#
# Unacceptable 1-, 5-, and 15-minute load averages
load   12 10 5#  Walk the UCD-SNMP-MIB::laTable to see the resulting output
#  Note that this table *will* be populated, even without a "load" entry in the snmpd.conf file###############################################################################
#
#  ACTIVE MONITORING
##   send SNMPv1  traps
trapsink     localhost public
#   send SNMPv2c traps
#trap2sink    localhost public
#   send SNMPv2c INFORMs
#informsink   localhost public#  Note that you typically only want *one* of these three lines
#  Uncommenting two (or all three) will result in multiple copies of each notification.#
#  Event MIB - automatically generate alerts
#
# Remember to activate the 'createUser' lines above
iquerySecName   internalUser       
rouser          internalUser
# generate traps on UCD error conditions
defaultMonitors          no
# generate traps on linkUp/Down
linkUpDownNotifications  yes###############################################################################
#
#  EXTENDING THE AGENT
##
#  Arbitrary extension commands
#extend    test1   /bin/echo  Hello, world!extend-sh test2   echo Hello, world! ; echo Hi there ; exit 35
#extend-sh test3   /bin/sh /tmp/shtest#  Note that this last entry requires the script '/tmp/shtest' to be created first,
#    containing the same three shell commands, before the line is uncommented#  Walk the NET-SNMP-EXTEND-MIB tables (nsExtendConfigTable, nsExtendOutput1Table
#     and nsExtendOutput2Table) to see the resulting output#  Note that the "extend" directive supercedes the previous "exec" and "sh" directives
#  However, walking the UCD-SNMP-MIB::extTable should still returns the same output,
#     as well as the fuller results in the above tables.#
#  "Pass-through" MIB extension command
#
#pass .1.3.6.1.4.1.8072.2.255  /bin/sh       PREFIX/local/passtest
#pass .1.3.6.1.4.1.8072.2.255  /usr/bin/perl PREFIX/local/passtest.pl# Note that this requires one of the two 'passtest' scripts to be installed first,
#    before the appropriate line is uncommented.
# These scripts can be found in the 'local' directory of the source distribution,
#     and are not installed automatically.#  Walk the NET-SNMP-PASS-MIB::netSnmpPassExamples subtree to see the resulting output#
#  AgentX Sub-agents
#
#  Run as an AgentX master agentmaster          agentx
#  Listen for network connections (from localhost)
#    rather than the default named socket /var/agentx/master
#agentXSocket    tcp:localhost:705

构建Docker镜像

docker build -t snmp-router .

编辑python脚本命令

  • 生成的docker-compose.yml文件格式，不太正确但是不影响正常执行
  • num_instances定义实例个数，可自定义
import yamldef generate_compose(num_instances, base_port, config_template):services = {}for i in range(1, num_instances + 1):  # 从1开始到num_instances（包括）service_name = f"snmp{i}"services[service_name] = {'image': 'snmp-router','build': '.','ports': [f"{base_port + i}:161/udp"],  # base_port从16201开始'volumes': [f"{config_template}:/etc/snmp/snmpd.conf"]}compose_dict = {'version': '3.8','services': services}# 使用 safe_dump 来避免包含 Python 具体的对象标签with open('docker-compose.yml', 'w') as f:yaml.safe_dump(compose_dict, f, default_flow_style=False)num_instances = 50  # 实例数量
base_port = 16200   # 第一个服务的基础端口号
config_template = "./snmpd.conf"  # 配置文件路径模板generate_compose(num_instances, base_port, config_template)

执行脚本

python3 generate_compose.py

启动所有服务

docker-compose up -d

在这里插入图片描述
在这里插入图片描述

批量删除命令

docker ps -a | awk '$NF ~ /^more-snmp/ {print $1}' | xargs -r docker rm -f
  1. docker ps -a：列出所有容器，包括停止的容器。
  2. awk ‘$NF ~ /^more-snmp/ {print $1}’：使用 awk 过滤出容器名以 “more-snmp” 开头的行，并打印出这些行中的第一个字段，即容器的 ID 或名称。
  3. xargs -r docker rm -f：将上一步得到的容器 ID 或名称传递给 docker rm -f 命令，强制删除这些容器。

这篇关于使用docker轻量化部署snmp agent（SNMPv2访问）的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！


http://www.chinasem.cn/article/560200。

相关文章

使用Python删除Excel中的行列和单元格示例详解

使用Python删除Excel中的行列和单元格示例详解

《使用Python删除Excel中的行列和单元格示例详解》在处理Excel数据时,删除不需要的行、列或单元格是一项常见且必要的操作,本文将使用Python脚本实现对Excel表格的高效自动化处理,感兴... 目录开发环境准备使用 python 删除 Excphpel 表格中的行删除特定行删除空白行删除含指定
阅读更多...
SpringBoot结合Docker进行容器化处理指南

SpringBoot结合Docker进行容器化处理指南

《SpringBoot结合Docker进行容器化处理指南》在当今快速发展的软件工程领域,SpringBoot和Docker已经成为现代Java开发者的必备工具,本文将深入讲解如何将一个SpringBo... 目录前言一、为什么选择 Spring Bootjavascript + docker1. 快速部署与
阅读更多...
golang程序打包成脚本部署到Linux系统方式

golang程序打包成脚本部署到Linux系统方式

《golang程序打包成脚本部署到Linux系统方式》Golang程序通过本地编译（设置GOOS为linux生成无后缀二进制文件）,上传至Linux服务器后赋权执行,使用nohup命令实现后台运行,完... 目录本地编译golang程序上传Golang二进制文件到linux服务器总结本地编译Golang程序
阅读更多...
深入理解Go语言中二维切片的使用

深入理解Go语言中二维切片的使用

《深入理解Go语言中二维切片的使用》本文深入讲解了Go语言中二维切片的概念与应用,用于表示矩阵、表格等二维数据结构,文中通过示例代码介绍的非常详细,需要的朋友们下面随着小编来一起学习学习吧... 目录引言二维切片的基本概念定义创建二维切片二维切片的操作访问元素修改元素遍历二维切片二维切片的动态调整追加行动态
阅读更多...
prometheus如何使用pushgateway监控网路丢包

prometheus如何使用pushgateway监控网路丢包

《prometheus如何使用pushgateway监控网路丢包》：本文主要介绍prometheus如何使用pushgateway监控网路丢包问题,具有很好的参考价值,希望对大家有所帮助,如有错误... 目录监控网路丢包脚本数据图表总结监控网路丢包脚本[root@gtcq-gt-monitor-prome
阅读更多...
Python通用唯一标识符模块uuid使用案例详解

Python通用唯一标识符模块uuid使用案例详解

《Python通用唯一标识符模块uuid使用案例详解》Pythonuuid模块用于生成128位全局唯一标识符,支持UUID1-5版本,适用于分布式系统、数据库主键等场景,需注意隐私、碰撞概率及存储优... 目录简介核心功能1. UUID版本2. UUID属性3. 命名空间使用场景1. 生成唯一标识符2. 数
阅读更多...
SpringBoot中如何使用Assert进行断言校验

SpringBoot中如何使用Assert进行断言校验

《SpringBoot中如何使用Assert进行断言校验》Java提供了内置的assert机制,而Spring框架也提供了更强大的Assert工具类来帮助开发者进行参数校验和状态检查,下... 目录前言一、Java 原生assert简介1.1 使用方式1.2 示例代码1.3 优缺点分析二、Spring Fr
阅读更多...
Android kotlin中 Channel 和 Flow 的区别和选择使用场景分析

Android kotlin中 Channel 和 Flow 的区别和选择使用场景分析

《Androidkotlin中Channel和Flow的区别和选择使用场景分析》Kotlin协程中,Flow是冷数据流,按需触发,适合响应式数据处理；Channel是热数据流,持续发送,支持... 目录一、基本概念界定FlowChannel二、核心特性对比数据生产触发条件生产与消费的关系背压处理机制生命周期
阅读更多...
java使用protobuf-maven-plugin的插件编译proto文件详解

java使用protobuf-maven-plugin的插件编译proto文件详解

《java使用protobuf-maven-plugin的插件编译proto文件详解》：本文主要介绍java使用protobuf-maven-plugin的插件编译proto文件,具有很好的参考价... 目录protobuf文件作为数据传输和存储的协议主要介绍在Java使用maven编译proto文件的插件
阅读更多...
如何在Ubuntu 24.04上部署Zabbix 7.0对服务器进行监控

如何在Ubuntu 24.04上部署Zabbix 7.0对服务器进行监控

《如何在Ubuntu24.04上部署Zabbix7.0对服务器进行监控》在Ubuntu24.04上部署Zabbix7.0监控阿里云ECS服务器,需配置MariaDB数据库、开放10050/1005... 目录软硬件信息部署步骤步骤 1：安装并配置mariadb步骤 2：安装Zabbix 7.0 Server
阅读更多...

Copyright China编程 23002807@qq.com

沪ICP备2023033072号-2