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[docker_image_ctl.j2] Share UTS namespace with host OS #4169

Merged
merged 1 commit into from
Feb 26, 2020
Merged

[docker_image_ctl.j2] Share UTS namespace with host OS #4169

merged 1 commit into from
Feb 26, 2020

Commits on Feb 19, 2020

  1. [docker_image_ctl.j2] Share UTS namespace with host OS 

    Instead of updating hostname manualy on Config DB hostname change,
simply share containers UTS namespace with host OS.
Ideally, instead of setting `--uts=host` for every container in SONiC,
this setting can be set per container if feature requires.
One behaviour change is introduced in this commit, when `--privileged`
or `--cap-add=CAP_SYS_ADMIN` and `--uts=host` are combined, container
has privilege to change host OS and every other container hostname.
Such privilege should be fixed by limiting containers capabilities.

Signed-off-by: Stepan Blyschak <stepanb@mellanox.com>
    Stepan Blyschak committed Feb 19, 2020
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