Thanks Kristine. From the doc update perspective, we’ve added this as a new task to https://storyboard.openstack.org/#!/story/2006289. -- Mike and team From: Liu, Yang <yang.liu@windriver.com> Sent: Tuesday, August 13, 2019 10:04 AM To: Bujold, Kristine <Kristine.Bujold@windriver.com>; starlingx-discuss@lists.starlingx.io Cc: Balaraj, Juanita <Juanita.Balaraj@windriver.com> Subject: Re: [Starlingx-discuss] [DOCS] new host-fs CLI commands Hi Kristine, What is the current expectation for backup fs when modify controllerfs? e.g., if we want to increase any replicated controller fs, do we first need to modify non-replicated backup fs on both controllers to ensure there are enough spaces for all the replicated and non-replicated file systems? Thanks, Yang From: Bujold, Kristine [mailto:Kristine.Bujold@windriver.com] Sent: August-13-19 12:49 PM To: starlingx-discuss@lists.starlingx.io<mailto:starlingx-discuss@lists.starlingx.io> Cc: Balaraj, Juanita Subject: [Starlingx-discuss] [DOCS] new host-fs CLI commands A new CLI command called host-fs has been introduced to enable resizing of filesystems on a specific host. Changes were also made to the controllerfs API. https://bugs.launchpad.net/starlingx/+bug/1830142 Previously Previously we allowed resizing of our filesystems through the controllerfs API, which only applied to controller hosts. The controllerfs API modified the following filesystems; - drbd replicated database docker-distribution etcd extension glance - non replicated backup docker scratch New host-fs API A new host-fs API has been created to allow a filesystem to be resized on any specific host. The non drbd filesystems from controllerfs (backup, docker and scratch) have been moved to the new host-fs API. Also a new filesystem called "kublet" has been created on all hosts with a default size of 10G. The new API has the following CLI commands system host-fs-list <hostname or id> system host-fs-modify <hostname or id> <fs_name=size> [<fs_name=size> ...] system host-host-show <hostname or id> <fs name or uuid> system host-fs-list controller-1 +--------------------------------------+---------+-------------+----------------+ | UUID | FS Name | Size in GiB | Logical Volume | +--------------------------------------+---------+-------------+----------------+ | a4d83571-a555-4ba5-999f-af709206ae35 | backup | 40 | backup-lv | | d57652a1-af17-47b8-b941-9ebfeee4a56f | docker | 30 | docker-lv | | a84374c6-8917-4db5-bd34-2a8d244f2bf6 | kubelet | 10 | kubelet-lv | | 2c026d6f-5c03-4135-abca-c0047aa7f5a6 | scratch | 8 | scratch-lv | +--------------------------------------+---------+-------------+----------------+ system host-fs-list compute-1 +--------------------------------------+---------+-------------+----------------+ | UUID | FS Name | Size in GiB | Logical Volume | +--------------------------------------+---------+-------------+----------------+ | 32e8b0b2-8a26-4c87-ae2e-71477b276740 | docker | 30 | docker-lv | | 223671f7-aed0-4c6e-b1d2-1327aae74439 | kubelet | 10 | kubelet-lv | | 36b96d05-febb-411b-a290-abdc5a2be0ff | scratch | 4 | scratch-lv | +--------------------------------------+---------+-------------+----------------+ system host-fs-show controller-1 a4d83571-a555-4ba5-999f-af709206ae35 +----------------+--------------------------------------+ | Property | Value | +----------------+--------------------------------------+ | uuid | a4d83571-a555-4ba5-999f-af709206ae35 | | name | backup | | size | 40 | | logical_volume | backup-lv | | created_at | 2019-08-08T03:05:25.341669+00:00 | | updated_at | None | +----------------+--------------------------------------+ system host-fs-modify controller-1 docker=31 kubelet=11 +--------------------------------------+---------+-------------+----------------+ | UUID | FS Name | Size in GiB | Logical Volume | +--------------------------------------+---------+-------------+----------------+ | a4d83571-a555-4ba5-999f-af709206ae35 | backup | 40 | backup-lv | | d57652a1-af17-47b8-b941-9ebfeee4a56f | docker | 31 | docker-lv | | a84374c6-8917-4db5-bd34-2a8d244f2bf6 | kubelet | 11 | kubelet-lv | | 2c026d6f-5c03-4135-abca-c0047aa7f5a6 | scratch | 8 | scratch-lv | +--------------------------------------+---------+-------------+----------------+ Filesystem Supported Hosts Folder Logical Volume Default Size backup controller /opt/backups backup-lv 40G scratch all hosts /scratch scratch-lv varies depending on system, configured in kickstart docker all hosts /var/lib/docker docker-lv 30G (new fs to worker and storage hosts) kublet all hosts /var/lib/kublet kublet-lv 10G (new fs to all hosts) Changes to controllerfs API The existing “platform” filesystem is now resizable and added to controllerfs. The “glance” filesystem is now merged into platform. Below are the new filesystems resizable by controllerfs. The backup, docker and scratch filesystems are now resizable under host-fs. Filesystem Folder Logical Volume Default Size database /var/lib/postgresql pgsql-lv 40G docker-distribution /var/lib/docker-distribution dockerdistribution-lv 16G etcd /opt/etcd etcd-lv 5G extension /opt/extension extension-lv 1G glance /opt/cgcs cgcs-lv 20g (removed and merged with platform) platform /opt/platform platform-lv 10G backup /opt/backups backup-lv managed by host-fs scratch /scratch scratch-lv managed by host-fs docker /var/lib/docker docker-lv managed by host-fs Thanks, Kristine