Setting environment variables for LXC Containers

[Harish Vishwanath <harish.shastry@xxxxxxxxx>]

Hello

Is there a way to set custom environment variables for LXC containers so that it is available for all processes within the container?

The libvirt-lxc driver seems to be setting up only the below variables (as per the docs), but there doesn't seem to be a way customize it.

container

The fixed string libvirt-lxc to identify libvirt as the creator

container_uuid

The UUID assigned to the container by libvirt

PATH

The fixed string /bin:/usr/bin

TERM

The fixed string linux

HOME

The fixed string /

In addition to the standard variables, the following libvirt specific environment variables are also provided

LIBVIRT_LXC_NAME

The name assigned to the container by libvirt

LIBVIRT_LXC_UUID

The UUID assigned to the container by libvirt

LIBVIRT_LXC_CMDLINE

The unparsed command line arguments specified in the container configuration. Use of this is discouraged, in favour of passing arguments directly to the container init process via the initarg config element.

I am looking for something similar to this: https://linuxcontainers.org/lxc/manpages/man5/lxc.container.conf.5.html (lxc.environment)

Regards,
Harish

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