自宅のルータ(Yamahaルータ)のモニタリングをNew Relicで行えるようにしてみた

snmp local address {{ルータのIFのIP}}
snmp trap enable snmp all
snmp sysname home-router-master
snmpv3 context name home-router
snmpv3 usm user 1 new-relic-watcher group 1 sha {{パスワード}} aes128-cfb {{パスワード}}
snmpv3 trap host {{AlmaLinuxのホスト名}} user 1
snmpv3 host {{AlmaLinuxのホスト名}} user 1
snmpv3 vacm view 1 include 1.3.6.1
snmpv3 vacm access 1 read 1 write none

syslog host {{AlmaLinuxのホスト名}}

version: "3.9"
services:
  SnmpManager:
    image: kentik/ktranslate:v2
    container_name: snmp-manager
    restart: unless-stopped
    ports:
      - "162:1620/udp"
    volumes:
      - ./snmp-base.yaml:/snmp-base.yaml
　　　　　　　　　　　　# 後述します
      - ./profiles:/etc/ktranslate/profiles
    environment:
      NEW_RELIC_API_KEY: xxxxx
    command:
      - -snmp=/snmp-base.yaml
      - -nr_account_id=xxxxx
      - -metrics=jchf
      - -tee_logs=true
      - -service_name=router-snmp
      - -snmp_discovery_on_start=true
      - -snmp_discovery_min=60
      - nr1.snmp
  SyslogManager:
    image: kentik/ktranslate:v2
    container_name: syslog-manager
    restart: unless-stopped
    ports:
      - "514:5143/udp"
    volumes:
      - ./snmp-base.yaml:/snmp-base.yaml
    environment:
      NEW_RELIC_API_KEY: xxxxx
    command:
      - -snmp=/snmp-base.yaml
      - -nr_account_id=xxxxxx
      - -metrics=jchf
      - -tee_logs=true
      - -service_name=router-syslog
      - -snmp_discovery_min=60
      - nr1.syslog

devices: {}
trap:
    listen: 0.0.0.0:1620
    community: ""
    version: v3
    transport: ""
    v3_config:
        user_name: new-relic-watcher
        authentication_protocol: SHA
        authentication_passphrase: xxxxx
        privacy_protocol: AES
        privacy_passphrase: xxxxx
        context_name: home-router
    trap_only: false
discovery:
    cidrs:
        - {{ルーターのIP}}/32
    ignore_list: []
    ports:
        - 161
    default_communities: []
    use_snmp_v1: false
    default_v3:
        user_name: new-relic-watcher
        authentication_protocol: SHA
        authentication_passphrase: xxxxx
        privacy_protocol: AES
        privacy_passphrase: xxxxx
        context_name: home-router
    add_devices: true
    add_mibs: true
    threads: 4
    replace_devices: true
    check_all_ips: true
    kentik: null
global:
  poll_time_sec: 300
  mib_profile_dir: /etc/ktranslate/profiles
  mibs_enabled:
    - IF-MIB
  timeout_ms: 3000
  retries: 0

docker compose up -d

#NOTE: 別途先ほどのyamaha-private-mib.zipをダウンロードして解凍済み
#      ~/git/ディレクトリ上で作業しています。
pip install pysmi
git clone git@github.com:librenms/librenms.git
git clone git@github.com:kentik/snmp-profiles.git
mkdir snmp-profiles/profiles/kentik_snmp/yamaha/

cd yamaha-private-mib
#末尾が.txtだとうまく動かなかったので.txtを全て除去しておく
rename "s/.txt//g" ./*
mibdump.py --mib-source ../librenms/mibs --mib-source ./ --destination-format json  --destination-directory ../snmp-profiles/profiles/kentik_snmp/yamaha/ yamaha-rt-hardware.mib

# $ ls ~/git/snmp-profiles/profiles/kentik_snmp/yamaha 
#  YAMAHA-RT-HARDWARE.json YAMAHA-RT.json          YAMAHA-SMI.json
docker run --rm -v ~/git/snmp-profiles/profiles/kentik_snmp/yamaha/:/snmp_out kentik/ktranslate:v2 -snmp /etc/ktranslate/snmp-base.yaml -snmp_json2yaml  /snmp_out/YAMAHA-RT-HARDWARE.json

# Autogenerated by ktranslate on Wed Nov  8 17:34:01 UTC 2023 from YAMAHA-RT-HARDWARE.json
# 他のものをを見る限り大体この２つ固定だった。共通MIBっぽい感じがする
extends:
  - system-mib.yml
  - if-mib.yml
# 雰囲気ハードウェアのoidな気がするのでとりあえずそれで
sysobjectid:
  - 1.3.6.1.4.1.1182.1.53
metrics:
    - MIB: YAMAHA-RT-HARDWARE
      symbol:
        OID: 1.3.6.1.4.1.1182.2.1.1
        name: yrhCpuType
      walk_full_table: false
    - MIB: YAMAHA-RT-HARDWARE
      symbol:
        OID: 1.3.6.1.4.1.1182.2.1.17
        name: yrhEnableSystemAlarmTrap
      walk_full_table: false
    - MIB: YAMAHA-RT-HARDWARE
      symbol:
        OID: 1.3.6.1.4.1.1182.2.1.3
        name: yrhFlashROMSize
      walk_full_table: false
    - MIB: YAMAHA-RT-HARDWARE
      symbol:
        OID: 1.3.6.1.4.1.1182.2.1.2
        name: yrhMemorySize
      walk_full_table: false
    - MIB: YAMAHA-RT-HARDWARE
      symbol:
        OID: 1.3.6.1.4.1.1182.2.1.19
        name: yrhMemorySizeMB
      walk_full_table: false
    - MIB: YAMAHA-RT-HARDWARE
      symbol:
        OID: 1.3.6.1.4.1.1182.2.1.16
        name: yrhSystemAlarm
      walk_full_table: false
    - MIB: YAMAHA-RT-HARDWARE
      symbol:
        OID: 1.3.6.1.4.1.1182.2.1.4
        name: yrhMemoryUtil
      walk_full_table: false
    - MIB: YAMAHA-RT-HARDWARE
      symbol:
        OID: 1.3.6.1.4.1.1182.2.1.6
        name: yrhCpuUtil1min
      walk_full_table: false
no_use_bulkwalkall: false
matches: {}
matches_list: []
sysmap: {}