/var/log bind mount overshadows /var/log/journal bindmount in lxc container setup

[Jocelyn Thode]

Hi,

While deploying openstack with openstack-ansible 20.1.3 (stable/train) in lxc containers we ran into an issue related to logs mount points

By default when creating the containers, the role will add a bind mount so that the journald logs are sent to the host which is very useful for log collection. (see https://github.com/openstack/openstack-ansible-lxc_container_create/blob/stable/train/tasks/lxc_container_config.yml#L44)

However, this mount point is overshadowed when running a service install after having created the containers. For example running the playbook os-heat-install.yml will overshadow the mount point /var/log/journal/... due to the variable lxc_default_bind_mounts (see https://github.com/openstack/openstack-ansible/blob/stable/train/playbooks/common-tasks/os-lxc-container-setup.yml#L49)

Expected behavior would be that the more specific mount point would be mounted after the more general one to avoid overshadowing.

[Dmitriy Rabotyagov (noonedeadpunk)]

I think as a workaround you can try setting `lxc_default_bind_mounts: false` in your user_variables, to omit mounting /var/log at all, while journal is supposed to be mounted anyway.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/752059

[Jocelyn Thode (jocelynthode)]

Hi,

do we have an ETA on when we can expect this to land in master?

Cheers

[Dmitriy Rabotyagov (noonedeadpunk)]

This has been landed on master and backported to stable/victoria

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/openstack-ansible 22.0.1 release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/openstack-ansible 23.0.0.0b1 development milestone.