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zabbix-agent.conf での個人的勘所

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serverバージョンは4系、AmazonLinux2環境

ubuntu環境に入れた時はこの記事をまんま進めてた(大感謝)。
ubuntuにagentを入れた時はインスコ完了時点でstartしている。

zabbix-agent.confでよく弄る箇所

### Option: LogFile
#	Log file name for LogType ‘file’ parameter.
#
# Mandatory: yes, if LogType is set to file, otherwise no
# Default:
# LogFile=

LogFile=/var/log/zabbix/zabbix_agentd.log

agentのLogを吐き出す場所の指定。
各agentのログを一箇所にまとめたい時等に割と弄る


### Option: EnableRemoteCommands
#	Whether remote commands from Zabbix server are allowed.
#	0 - not allowed
#	1 - allowed
#
# Mandatory: no
# Default:
# EnableRemoteCommands=0

リモートコマンドを許可するかどうかの設定。
コンテナのdownを検知してActionから $docker restart〜 等々、アラートに応じて自動でコマンドを流したい時に弄る。

# EnableRemoteCommands=0
EnableRemoteCommands=1

こんな感じに書いておけばconf.orgとdiff撮った時に見やすい、個人的に。


### Option: LogRemoteCommands
#	Enable logging of executed shell commands as warnings.
#	0 - disabled
#	1 - enabled
#
# Mandatory: no
# Default:
# LogRemoteCommands=0

説明の通り。ログは大事、マジで。


##### Passive checks related

### Option: Server
#	List of comma delimited IP addresses, optionally in CIDR notation, or DNS names of Zabbix servers and Zabbix proxies.
#	Incoming connections will be accepted only from the hosts listed here.
#	If IPv6 support is enabled then ‘127.0.0.1’, ‘::127.0.0.1’, ‘::ffff:127.0.0.1’ are treated equally
#	and ‘::/0’ will allow any IPv4 or IPv6 address.
#	‘0.0.0.0/0’ can be used to allow any IPv4 address.
#	Example: Server=127.0.0.1,192.168.1.0/24,::1,2001:db8::/32,zabbix.example.com
#
# Mandatory: yes, if StartAgents is not explicitly set to 0
# Default:
# Server=

Server=127.0.0.1

zabbix-serverのIP入力欄。
proxyを噛ませている場合はproxyのIP。そらそうでしょって感じだが意外と忘れてる事がある。


##### Active checks related

### Option: ServerActive
#	List of comma delimited IP:port (or DNS name:port) pairs of Zabbix servers and Zabbix proxies for active checks.
#	If port is not specified, default port is used.
#	IPv6 addresses must be enclosed in square brackets if port for that host is specified.
#	If port is not specified, square brackets for IPv6 addresses are optional.
#	If this parameter is not specified, active checks are disabled.
#	Example: ServerActive=127.0.0.1:20051,zabbix.domain,[::1]:30051,::1,[12fc::1]
#
# Mandatory: no
# Default:
# ServerActive=

ServerActive=127.0.0.1

アクティブチェックの設定。
基本的には Serverの設定と一緒。
serverやらproxyがコンテナで稼働している時はコンテナが使っているportを要確認。


### Option: Hostname
#	Unique, case sensitive hostname.
#	Required for active checks and must match hostname as configured on the server.
#	Value is acquired from HostnameItem if undefined.
#
# Mandatory: no
# Default:
# Hostname=

Hostname=Zabbix server

Hostnameの設定。
Autoregistの設定をしている時はココで設定した値がHostnameになる(そのまんま)


### Option: HostMetadata
#	Optional parameter that defines host metadata.
#	Host metadata is used at host auto-registration process.
#	An agent will issue an error and not start if the value is over limit of 255 characters.
#	If not defined, value will be acquired from HostMetadataItem.
#
# Mandatory: no
# Range: 0-255 characters
# Default:
# HostMetadata=

web側のauto registration設定で拾うHostMetaDataの設定。
ココ次第でHostGroupsの振り分けとかもできる。


### Option: RefreshActiveChecks
#	How often list of active checks is refreshed, in seconds.
#
# Mandatory: no
# Range: 60-3600
# Default:
# RefreshActiveChecks=120

ActiveCheckの更新間隔。
デフォの120secは少々長い印象。自分用に構築するときは大体60sec


### Option: Timeout
#	Spend no more than Timeout seconds on processing
#
# Mandatory: no
# Range: 1-30
# Default:
# Timeout=3

timeoutの長さ。
デフォの3secは短い印象。30sec位でええでしょ程度に。


雑多なメモ

・Elasticache memcacheの監視反映は思ったより時間がかかる。
・発報テスト時はseverityに注意しましょう(slack転送設定をした後とか稼働中のサービスがあったりすると。。。)
・Templateのimport時、Discovery配下設定はimportされない
※一例
All Template -> 対象Template -> Discover rules -> filesysteのtrigger prototypes

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