all lists on lists.proxmox.com
 help / color / mirror / Atom feed
* [pve-devel] [PATCH v2 master ceph, quincy-stable 8 ceph, pve-storage, pve-manager 00/11] Fix #4759: Configure Permissions for ceph-crash.service
@ 2024-02-05 17:54 Max Carrara
  2024-02-05 17:54 ` [pve-devel] [PATCH v2 master ceph 01/11] debian: add patch to fix ceph crash dir permissions in postinst hook Max Carrara
                   ` (10 more replies)
  0 siblings, 11 replies; 29+ messages in thread
From: Max Carrara @ 2024-02-05 17:54 UTC (permalink / raw)
  To: pve-devel

This marks version 02 of the patch series "Fix #4759: Configure
Permissions for ceph-crash.service" [0]. 

Each patch also lists which changes have been made between versions.

Other changes not otherwise mentioned in patches:
  v1 --> v2:
    * drop patch regarding POSIX compatibility in debian/postinst hook 
      as suggested [1]


Regarding `ceph.client.crash.keyring`
-------------------------------------

One idea [2] that was mentioned was to have a keyring for each host
instead of sharing a keyring on pmxcfs. While that is indeed possible,
it would require host-specific `client.crash` keys, each requiring
a separate section ('client.crash.$HOSTNAME'). Alternatively, the
default search path location may also be changed, however, the Ceph docs
do not recommend this [3]:

> It is possible to override this search-path location by adding a
> `keyring` option in the `[global]` section of your Ceph configuration
> file, but this is not recommended.

In our case, `ceph-crash` appears to try
'/etc/pve/priv/ceph.client.crash.$HOSTNAME.keyring' first (and
subsequently logs an authentication error) before attempting to
authenticate via other clients/keyrings, which aligns with what Fabian
had discovered.

It is therefore easier to:
  * have one keyring file at '/etc/pve/ceph/ceph.client.crash.keyring'
  * have the configuration point to that file
  * patch Ceph in order to make `ceph-crash` try to authenticate with
    'client.crash' first

This gets rid of the unnecessary warnings and errors that otherwise show
up in the systemd journal.

Furthermore, the Ceph Crash docs use 'client.crash' [4], so I personally
doubt that upstream expects that people use the host-specific key;
rather, it seems that any of the three keys is fine.

Further points I have regarding sharing the key via pmxcfs:
  * in case the key & keyring file ever need to be rotated, only a
    single file location and cephx auth entry needs to be updated
    - instead of having to update every host's key *and* each
      corresponding cephx auth entry

  * the key is generated only once, exactly when the first monitor is
    created
    - otherwise we would need to ensure that the host-specific keys
      exist and are reliably added to cephx - e.g. per each use of
      `pveceph init` while also having to set up the first host-specific
      key when the first monitor is created via `pveceph mon create`

  * the keyring file's name doesn't need to be changed if the hostname
    changes (although that's admittedly a very minor benefit)

  * overall less administrative friction for the user (again, single
    location, single cephx auth entry)

Therefore, I decided to keep most things as they were with other
suggestions incorporated. The order of the identities that `ceph-crash`
checks is adapted, in order to "suppress" the warnings in the systemd
journal.

Though, I will of course consider any feedback in this regard,
especially if my reasoning here proves to be erroneous.


[0]: https://lists.proxmox.com/pipermail/pve-devel/2024-January/061546.html
[1]: https://lists.proxmox.com/pipermail/pve-devel/2024-January/061561.html
[2]: https://lists.proxmox.com/pipermail/pve-devel/2024-January/061566.html
[3]: https://docs.ceph.com/en/reef/rados/configuration/auth-config-ref/#enabling-cephx
[4]: https://docs.ceph.com/en/quincy/mgr/crash/#enabling



ceph (master):

Max Carrara (2):
  debian: add patch to fix ceph crash dir permissions in postinst hook
  patches: add patch that reorders clients used by ceph-crash

 ...rmissions-of-subdirectories-of-var-l.patch | 50 +++++++++++++++++++
 ...h-crash-change-order-of-client-names.patch | 30 +++++++++++
 patches/series                                |  2 +
 3 files changed, 82 insertions(+)
 create mode 100644 patches/0015-debian-adjust-permissions-of-subdirectories-of-var-l.patch
 create mode 100644 patches/0016-ceph-crash-change-order-of-client-names.patch


ceph (quincy-stable-8):

Max Carrara (2):
  debian: add patch to fix ceph crash dir permissions in postinst hook
  patches: add patch that reorders clients used by ceph-crash

 ...rmissions-of-subdirectories-of-var-l.patch | 50 +++++++++++++++++++
 ...h-crash-change-order-of-client-names.patch | 30 +++++++++++
 patches/series                                |  2 +
 3 files changed, 82 insertions(+)
 create mode 100644 patches/0024-debian-adjust-permissions-of-subdirectories-of-var-l.patch
 create mode 100644 patches/0025-ceph-crash-change-order-of-client-names.patch


pve-storage:

Max Carrara (3):
  cephconfig: align our parser more with Ceph's parser
  cephconfig: allow writing arbitrary sections
  amend! cephconfig: allow writing arbitrary sections

 src/PVE/CephConfig.pm | 42 +++++++++++++++++++++++++++---------------
 1 file changed, 27 insertions(+), 15 deletions(-)


pve-manager:

Max Carrara (4):
  ceph: fix edge case of wrong files being deleted on purge
  fix #4759: ceph: configure keyring for ceph-crash.service
  ceph: create '/etc/pve/ceph' during `pveceph init`
  fix #4759: debian/postinst: configure ceph-crash.service and its key

 PVE/API2/Ceph.pm     |   5 ++
 PVE/API2/Ceph/MON.pm |  17 ++++++-
 PVE/Ceph/Tools.pm    |  57 +++++++++++++++++++---
 debian/postinst      | 113 +++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 185 insertions(+), 7 deletions(-)


-- 
2.39.2





^ permalink raw reply	[flat|nested] 29+ messages in thread

end of thread, other threads:[~2024-02-14 12:43 UTC | newest]

Thread overview: 29+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2024-02-05 17:54 [pve-devel] [PATCH v2 master ceph, quincy-stable 8 ceph, pve-storage, pve-manager 00/11] Fix #4759: Configure Permissions for ceph-crash.service Max Carrara
2024-02-05 17:54 ` [pve-devel] [PATCH v2 master ceph 01/11] debian: add patch to fix ceph crash dir permissions in postinst hook Max Carrara
2024-02-12 13:32   ` Fabian Grünbichler
2024-02-13  8:25     ` Max Carrara
2024-02-05 17:54 ` [pve-devel] [PATCH v2 master ceph 02/11] patches: add patch that reorders clients used by ceph-crash Max Carrara
2024-02-12 13:33   ` Fabian Grünbichler
2024-02-05 17:54 ` [pve-devel] [PATCH v2 quincy-stable-8 ceph 03/11] debian: add patch to fix ceph crash dir permissions in postinst hook Max Carrara
2024-02-12 13:32   ` Fabian Grünbichler
2024-02-05 17:54 ` [pve-devel] [PATCH v2 quincy-stable-8 ceph 04/11] patches: add patch that reorders clients used by ceph-crash Max Carrara
2024-02-12 13:33   ` Fabian Grünbichler
2024-02-05 17:54 ` [pve-devel] [PATCH v2 pve-storage 05/11] cephconfig: align our parser more with Ceph's parser Max Carrara
2024-02-12 13:33   ` Fabian Grünbichler
2024-02-13  8:34     ` Max Carrara
2024-02-05 17:54 ` [pve-devel] [PATCH v2 pve-storage 06/11] cephconfig: allow writing arbitrary sections Max Carrara
2024-02-12 13:33   ` Fabian Grünbichler
2024-02-13  8:46     ` Max Carrara
2024-02-05 17:54 ` [pve-devel] [PATCH v2 pve-storage 07/11] amend! " Max Carrara
2024-02-12 13:33   ` Fabian Grünbichler
2024-02-13  8:50     ` Max Carrara
2024-02-05 17:54 ` [pve-devel] [PATCH v2 pve-manager 08/11] ceph: fix edge case of wrong files being deleted on purge Max Carrara
2024-02-12 13:33   ` [pve-devel] applied: " Fabian Grünbichler
2024-02-05 17:54 ` [pve-devel] [PATCH v2 pve-manager 09/11] fix #4759: ceph: configure keyring for ceph-crash.service Max Carrara
2024-02-12 13:34   ` Fabian Grünbichler
2024-02-13  9:09     ` Max Carrara
2024-02-14 12:43       ` Max Carrara
2024-02-05 17:54 ` [pve-devel] [PATCH v2 pve-manager 10/11] ceph: create '/etc/pve/ceph' during `pveceph init` Max Carrara
2024-02-05 17:54 ` [pve-devel] [PATCH v2 pve-manager 11/11] fix #4759: debian/postinst: configure ceph-crash.service and its key Max Carrara
2024-02-12 13:34   ` Fabian Grünbichler
2024-02-13  9:25     ` Max Carrara

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.
Service provided by Proxmox Server Solutions GmbH | Privacy | Legal