doc/dev/developer_guide/essentials: update mailing lists

Update information for subscribing to Ceph development mailing lists as current documentation is outdated.

Fixes: https://tracker.ceph.com/issues/64580
Signed-off-by: Laimis Juzeliunas <laimis.juzeliunas@oxylabs.io>

diff --git a/doc/dev/developer_guide/essentials.rst b/doc/dev/developer_guide/essentials.rst
index 7cce4c6f898ffc207675b2d34b66825ff1fd45a0..501dd0bbfbb346e4e8f7cb24dc3a3deb2abff365 100644 (file)
--- a/doc/dev/developer_guide/essentials.rst
+++ b/doc/dev/developer_guide/essentials.rst
@@ -88,6 +88,10 @@ Ceph's Slack is https://ceph-storage.slack.com/.
 Mailing lists
 -------------
 
+Ceph developers and users discuss the project on `Ceph-related mailing lists`_.
+
+.. _`Ceph-related mailing lists`: https://ceph.com/en/community/connect
+
 Ceph Development Mailing List
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 The ``dev@ceph.io`` list is for discussion about the development of Ceph,
@@ -95,11 +99,9 @@ its interoperability with other technology, and the operations of the
 project itself.
 
 The email discussion list for Ceph development is open to all. Subscribe by
-sending a message to ``dev-request@ceph.io`` with the following line in the
-body of the message::
-
-    subscribe ceph-devel
+completing the `sign-up form on dev.ceph.io`_.
 
+.. _`sign-up form on dev.ceph.io`: https://lists.ceph.io/postorius/lists/dev.ceph.io
 
 Ceph Client Patch Review Mailing List
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -108,19 +110,10 @@ for the Linux kernel Ceph client component. Note that this list used to
 be an all-encompassing list for developers. When searching the archives, 
 remember that this list contains the generic devel-ceph archives before mid-2018.
 
-Subscribe to the list covering the Linux kernel Ceph client component by sending
-a message to ``majordomo@vger.kernel.org`` with the following line in the body
-of the message::
-
-    subscribe ceph-devel
-
-
-Other Ceph Mailing Lists
-~~~~~~~~~~~~~~~~~~~~~~~~
-
-There are also `other Ceph-related mailing lists`_.
+Subscribe to the list covering the Linux kernel Ceph client component by using
+the `sub link for ceph-devel in vger.kernel.org`_.
 
-.. _`other Ceph-related mailing lists`: https://ceph.com/irc/
+.. _`sub link for ceph-devel in vger.kernel.org`: https://subspace.kernel.org/vger.kernel.org.html
 
 .. _irc: