Zabbix serverをdocker-composeで立ち上げる
dockerをインストール
適宜
イメージをダウンロード
zabbix/zabbix-docker: Official Zabbix Dockerfiles https://github.com/zabbix/zabbix-docker/blob/6.4/docker-compose_v3_alpine_mysql_latest.yaml を選択。
Tips
※ secretsを利用しているようだが設定が正しくされないのでenv_filesを利用した。
設定の書き換え
Zabbix Docker Installation | Mike Polinowski を参考に、agentのIPアドレスを確認して管理画面よりIPアドレスを書き換える。
Tips
サービスの指定 下記のようにサービスを選択しないと、zabbix-agent、zabbix-snmptrapsが自動起動しなかった。
$ docker-compose up -d zabbix-server zabbix-web-nginx-mysql zabbix-agent mysql-server db_data_mysql Linkが自動作成されない
observer-zabbix-agent-1 | 18820:20231119:050956.125 Unable to connect to [zabbix-server]:10051 [cannot connect to [[zabbix-server]:10051]: [111] Connection refused] IPアドレスを書き換えてもActiveにならない。下記で明示的にエイリアスを指定する必要がある
zabbix-agent: ... links: - zabbix-server:zabbix-server 作成したdocker-composeファイル
version: "3.5" services: zabbix-server: image: zabbix/zabbix-server-mysql:alpine-6.4-latest ports: - "10051:10051" volumes: - /tmp/localtime:/etc/localtime:ro # mountエラーになるため変更 - /etc/timezone:/etc/timezone:ro - ./zbx_env/usr/lib/zabbix/alertscripts:/usr/lib/zabbix/alertscripts:ro - ./zbx_env/usr/lib/zabbix/externalscripts:/usr/lib/zabbix/externalscripts:ro - ./zbx_env/var/lib/zabbix/dbscripts:/var/lib/zabbix/dbscripts:ro - ./zbx_env/var/lib/zabbix/export:/var/lib/zabbix/export:rw - ./zbx_env/var/lib/zabbix/modules:/var/lib/zabbix/modules:ro - ./zbx_env/var/lib/zabbix/enc:/var/lib/zabbix/enc:ro - ./zbx_env/var/lib/zabbix/ssh_keys:/var/lib/zabbix/ssh_keys:ro - ./zbx_env/var/lib/zabbix/mibs:/var/lib/zabbix/mibs:ro - snmptraps:/var/lib/zabbix/snmptraps:rw links: - mysql-server:mysql-server ulimits: nproc: 65535 nofile: soft: 20000 hard: 40000 deploy: resources: limits: cpus: "0.70" memory: 1G reservations: cpus: "0.5" memory: 512M env_file: - ./env_vars/.env_db_mysql depends_on: - mysql-server networks: zbx_net_backend: aliases: - zabbix-server - zabbix-server-mysql - zabbix-server-alpine-mysql - zabbix-server-mysql-alpine zbx_net_frontend: stop_grace_period: 30s sysctls: - net.ipv4.ip_local_port_range=1024 64999 - net.ipv4.conf.all.accept_redirects=0 - net.ipv4.conf.all.secure_redirects=0 - net.ipv4.conf.all.send_redirects=0 labels: com.zabbix.description: "Zabbix server with MySQL database support" com.zabbix.company: "Zabbix LLC" com.zabbix.component: "zabbix-server" com.zabbix.dbtype: "mysql" com.zabbix.os: "alpine" zabbix-web-nginx-mysql: image: zabbix/zabbix-web-nginx-mysql:alpine-6.4-latest ports: - "8080:8080" volumes: - /etc/localtime:/etc/localtime:ro - /etc/timezone:/etc/timezone:ro - ./zbx_env/etc/ssl/nginx:/etc/ssl/nginx:ro - ./zbx_env/usr/share/zabbix/modules/:/usr/share/zabbix/modules/:ro links: - mysql-server:mysql-server - zabbix-server:zabbix-server deploy: resources: limits: cpus: "0.70" memory: 512M reservations: cpus: "0.5" memory: 256M env_file: - ./env_vars/.env_db_mysql - ./env_vars/.env_zabbix depends_on: - mysql-server - zabbix-server healthcheck: test: ["CMD", "curl", "-f", "http://localhost:8080/ping"] interval: 10s timeout: 5s retries: 3 start_period: 30s networks: zbx_net_backend: aliases: - zabbix-web-nginx-mysql - zabbix-web-nginx-alpine-mysql - zabbix-web-nginx-mysql-alpine zbx_net_frontend: stop_grace_period: 10s sysctls: - net.core.somaxconn=65535 labels: com.zabbix.description: "Zabbix frontend on Nginx web-server with MySQL database support" com.zabbix.company: "Zabbix LLC" com.zabbix.component: "zabbix-frontend" com.zabbix.webserver: "nginx" com.zabbix.dbtype: "mysql" com.zabbix.os: "alpine" zabbix-agent: image: zabbix/zabbix-agent:alpine-6.4-latest profiles: - full - all ports: - "10050:10050" volumes: - /etc/localtime:/etc/localtime:ro - /etc/timezone:/etc/timezone:ro - ./zbx_env/etc/zabbix/zabbix_agentd.d:/etc/zabbix/zabbix_agentd.d:ro - ./zbx_env/var/lib/zabbix/modules:/var/lib/zabbix/modules:ro - ./zbx_env/var/lib/zabbix/enc:/var/lib/zabbix/enc:ro - ./zbx_env/var/lib/zabbix/ssh_keys:/var/lib/zabbix/ssh_keys:ro links: - zabbix-server:zabbix-server deploy: resources: limits: cpus: "0.2" memory: 128M reservations: cpus: "0.1" memory: 64M mode: global privileged: true pid: "host" networks: zbx_net_backend: aliases: - zabbix-agent - zabbix-agent-passive - zabbix-agent-alpine stop_grace_period: 5s labels: com.zabbix.description: "Zabbix agent" com.zabbix.company: "Zabbix LLC" com.zabbix.component: "zabbix-agentd" com.zabbix.os: "alpine" mysql-server: image: mysql:8.0-oracle command: - mysqld - --character-set-server=utf8mb4 - --collation-server=utf8mb4_bin volumes: - ./zbx_env/var/zabbixdb:/var/lib/mysql:rw env_file: - ./env_vars/.env_db_mysql stop_grace_period: 1m networks: zbx_net_backend: aliases: - mysql-server - zabbix-database - mysql-database db_data_mysql: image: busybox volumes: - ./zbx_env/var/zabbixdb:/var/lib/mysql:rw networks: zbx_net_frontend: driver: bridge driver_opts: com.docker.network.enable_ipv6: "false" ipam: driver: default config: - subnet: 172.16.238.0/24 zbx_net_backend: driver: bridge driver_opts: com.docker.network.enable_ipv6: "false" internal: true ipam: driver: default config: - subnet: 172.16.239.0/24 volumes: snmptraps: ./env_vars/.env_db_mysql に下記を記載してください
MYSQL_USER=xxx MYSQL_PASSWORD=xxx MYSQL_ROOT_PASSWORD=xxx ./env_vars/.env_zabbix に下記を記載してください
ZBX_SERVER_HOST=zabbix-server ZBX_SERVER_PORT=10051 別端末をzabbix agentで監視する
参考
- 辺境SEの雑多な備忘録: OpenWrtにZabbix Agentを入れてZabbix Serverから監視する
- Installing/Configuring Zabbix – Iron Comet Customer Portal
Tips
agentのログを見たい
logread | tail -10 ... Sun Nov 19 21:02:19 2023 daemon.info zabbix_agentd[15700]: Press Ctrl+C to exit. Sun Nov 19 21:02:19 2023 daemon.info zabbix_agentd[15700]: IPv6 support: YES Sun Nov 19 21:02:19 2023 daemon.info zabbix_agentd[15700]: Sun Nov 19 21:02:19 2023 daemon.info zabbix_agentd[15700]: TLS support: NO Sun Nov 19 21:02:19 2023 daemon.info zabbix_agentd[15700]: ************************** Sun Nov 19 21:02:19 2023 daemon.info zabbix_agentd[15700]: using configuration file: /etc/zabbix_agentd.conf Sun Nov 19 21:02:19 2023 daemon.info zabbix_agentd[15700]: agent #0 started [main process] Sun Nov 19 21:02:19 2023 daemon.info zabbix_agentd[15702]: agent #1 started [collector] Sun Nov 19 21:02:19 2023 daemon.info zabbix_agentd[15704]: agent #3 started [active checks #1] Sun Nov 19 21:02:19 2023 daemon.info zabbix_agentd[15703]: agent #2 started [listener #1] portが開いているか確認 telnetを利用する（インストールする必要がある）
# telnet 192.168.2.10 10051 Trying 192.168.2.10... Connected to 192.168.2.10. Escape character is '^]'. Connection closed by foreign host. 開いていない場合は下記のエラーが発生する
# telnet 192.168.2.10 1234 Trying 192.168.2.10... telnet: connect to address 192.168.2.10: Connection refused https://blog.silver-cat.info/2021/10/openwrtzabbix-agentzabbix-server.html
# iptables -A INPUT -p tcp --dport 10050 -j ACCEPT -s <Zabbix ServerのIP>
Frontendの表示が遅い
https://www.initmax.cz/wp-content/uploads/2022/06/zabbix_performance_tuning_6.0.pdf
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