zrepl/docs/configuration/sendrecvoptions.rst
Christian Schwarz 30cdc1430e replication + endpoint: replication guarantees: guarantee_{resumability,incremental,nothing}
This commit

- adds a configuration in which no step holds, replication cursors, etc. are created
- removes the send.step_holds.disable_incremental setting
- creates a new config option `replication` for active-side jobs
- adds the replication.protection.{initial,incremental} settings, each
  of which can have values
    - `guarantee_resumability`
    - `guarantee_incremental`
    - `guarantee_nothing`
  (refer to docs/configuration/replication.rst for semantics)

The `replication` config from an active side is sent to both endpoint.Sender and endpoint.Receiver
for each replication step. Sender and Receiver then act accordingly.

For `guarantee_incremental`, we add the new `tentative-replication-cursor` abstraction.
The necessity for that abstraction is outlined in https://github.com/zrepl/zrepl/issues/340.

fixes https://github.com/zrepl/zrepl/issues/340
2020-07-26 20:32:35 +02:00

46 lines
1.4 KiB
ReStructuredText

.. include:: ../global.rst.inc
Send & Recv Options
===================
.. _job-send-options:
Send Options
~~~~~~~~~~~~
::
jobs:
- type: push
filesystems: ...
send:
encrypted: true
...
:ref:`Source<job-source>` and :ref:`push<job-push>` jobs have an optional ``send`` configuration section.
``encryption`` option
---------------------
The ``encryption`` variable controls whether the matched filesystems are sent as `OpenZFS native encryption <http://open-zfs.org/wiki/ZFS-Native_Encryption>`_ raw sends.
More specifically, if ``encryption=true``, zrepl
* checks for any of the filesystems matched by ``filesystems`` whether the ZFS ``encryption`` property indicates that the filesystem is actually encrypted with ZFS native encryption and
* invokes the ``zfs send`` subcommand with the ``-w`` option (raw sends) and
* expects the receiving side to support OpenZFS native encryption (recv will fail otherwise)
Filesystems matched by ``filesystems`` that are not encrypted are not sent and will cause error log messages.
If ``encryption=false``, zrepl expects that filesystems matching ``filesystems`` are not encrypted or have loaded encryption keys.
.. _job-recv-options:
Recv Options
~~~~~~~~~~~~
:ref:`Sink<job-sink>` and :ref:`pull<job-pull>` jobs have an optional ``recv`` configuration section.
However, there are currently no variables to configure there.