Set ossec user's home path

[forana]

ossec expected its user's home directory to be /var/ossec. (ossec's old docs (mentioned this in passing)[https://www.ossec.net/docs/manual/agent/agentless-monitoring.html], but I haven't found it anywhere in wazuh's docs yet).

wazuh/wazuh doesn't specify a home directory at all for the ossec user, meaning that it defaults to /home/ossec, which doesn't exist. This means that the ssh-keygen command in the agentless How It Works section can't be followed. I've made it so /var/ossec is the home directory.

[SitoRBJ]

Hello @forana,

We have reviewed and tested your contributions and it has been a success. The containers keep getting up without any problem and the ossec user already has a directory.

Your contributions have been very valuable, thank you very much for everything. We proceed to merge the code.

Best regards,

Alfonso Ruiz-Bravo