Error: Cannot open file: [2] No such file or directory

[nicolas.pereira]

Hello, I have a Zabbix server running in a Docker container according to the .yaml compose file.

I am trying to read a file that is being generated on the host machine according to the volume mapping in the compose.

I am trying to use the item: vfs.file.contents[/var/lib/zabbix/httptrace_results.json]

However, the error is always the same: Cannot open file: [2] No such file or directory

I have already tried adjusting permissions, even setting chmod 777, but the error persists. Could someone help?

I have also tried checking the logs of the Zabbix server container, but there is no output shown there. I have also tried without the ro option.

  zabbix-server:
    image: zabbix/zabbix-server-mysql:ubuntu-latest
    container_name: zabbix-server
    privileged: true
    environment:
      DB_SERVER_HOST: zabbix-db
      MYSQL_DATABASE: zabbix
      MYSQL_USER: zabbix
      MYSQL_PASSWORD: 
      ZBX_SERVER_NAME: 'xpto'
      ZBX_CACHESIZE: 512M
      ZBX_VALUECACHESIZE: 256M
      ZBX_STARTPOLLERS: 15
      ZBX_STARTPREPROCESSORS: 10
      ZBX_STARTHTTPPOLLERS: 10
    depends_on:
      - zabbix-db
    ports:
      - "10051:10051"
    volumes:
      - /opt/monitor-data/zabbix-server-data:/var/lib/zabbix
      - /etc/localtime:/etc/localtime:ro
      - /root/monitor-cae/httptrace/httptrace_results.json:/var/lib/zabbix/httptrace_results.json:ro
    networks:
      zabbix-network:
        ipv4_address: 172.30.0.3
    restart: unless-stopped

[Brambo]

Edited the post,
Can you access other files from the container correctly and check userparameters if you allowed the agent to be able to access it as wel.

[nicolas.pereira]

I discovered the issue, and it was basically my mistake—I think I was tired.

I was trying to read the file from inside the Zabbix Server container, which doesn’t have an agent installed. The location where I should have been looking for my file was on the host that runs the Zabbix Server, as only there an agent was installed. After fixing this, everything worked. Thank you!

[cyber]

As long as I understand this, your container maps /var/lib/zabbix as /opt/monitor-data/zabbix-server-data, so you should maybe turn to that file as "/opt/monitor-data/zabbix-server-data/httptrace_results.json" ?

[Brambo]

Had a second look,
Is it possible to do a docker exec and cat the file you try to use. If it's not possible by docker exec than you know where to look.
A mount bind is possible on file but it should be there when you try to create the bind.