openstack-ansible-lxc_hosts/releasenotes/notes/base-container-lvm-cow-2faa824f6cd4b083.yaml
Jesse Pretorius b9c515a8a5 Implement base container for LVM-backed CoW containers
This patch implements a base container which may be used by a
deployer to deploy copy-on-write container backing stores backed
by LVM.

This process may be used to speed up the container creation
process without compromising security through the user of
backing stores like overlayfs.

Change-Id: I0bf227891a85bd7c8db53ca73fc5380b95e514fa
2016-08-22 11:40:10 +01:00

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YAML

---
features:
- The container cache preparation process now allows ``copy-on-write`` to be
set as the ``lxc_container_backing_method`` when the
``lxc_container_backing_store`` is set to ``lvm``. When this is set a base
container will be created using a name of the form
`<linux-distribution>`-`distribution-release>`-`<host-cpu-architecture>`.
The container will be stopped as it is not used for anything except to be
a backing store for all other containers which will be based on a snapshot
of the base container.
- When using copy-on-write backing stores for containers, the base container
name may be set using the variable ``lxc_container_base_name`` which
defaults to
`<linux-distribution>`-`distribution-release>`-`<host-cpu-architecture>`.