How to Keep LXC Containers HostFile After a Reboot
Proxmox VE tries to detect the Linux distribution in the container, and modifies some files. Here is a short list of things done at container startup:
set /etc/hostname
to set the container name
modify /etc/hosts
to allow lookup of the local hostname
Changes made by Proxmox VE are enclosed by comment markers:
# — BEGIN PVE —
data
# — END PVE —
Those markers will be inserted at a reasonable location in the file. If such a section already exists, it will be updated in place and will not be moved.
Modification of a file can be prevented by adding a .pve-ignore. file for it. For instance, if the file /etc/.pve-ignore.hosts exists then the /etc/hosts file will not be touched. This can be a simple empty file created via:
# touch /etc/.pve-ignore.hosts
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