* Add --id argument to safekeeper setting its unique u64 id.
In preparation for storage node messaging. IDs are supposed to be monotonically
assigned by the console. In tests it is issued by ZenithEnv; at the zenith cli
level and fixtures, string name is completely replaced by integer id. Example
TOML configs are adjusted accordingly.
Sequential ids are chosen over Zid mainly because they are compact and easy to
type/remember.
* add node id to pageserver
This adds node id parameter to pageserver configuration. Also I use a
simple builder to construct pageserver config struct to avoid setting
node id to some temporary invalid value. Some of the changes in test
fixtures are needed to split init and start operations for envrionment.
Co-authored-by: Arseny Sher <sher-ars@yandex.ru>
* Fix checkpoint.nextXid update
* Add test for cehckpoint.nextXid
* Fix indentation of test_next_xid.py
* Fix mypy error in test_next_xid.py
* Tidy up the test case.
* Add a unit test
Co-authored-by: Heikki Linnakangas <heikki@zenith.tech>
