* 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>
The 'zenith' CLI utility can now be used to launch safekeepers. By
default, one safekeeper is configured. There are new 'safekeeper
start/stop' subcommands to manage the safekeepers. Each safekeeper is
given a name that can be used to identify the safekeeper to start/stop
with the 'zenith start/stop' commands. The safekeeper data is stored
in '.zenith/safekeepers/<name>'.
The 'zenith start' command now starts the pageserver and also all
safekeepers. 'zenith stop' stops pageserver, all safekeepers, and all
postgres nodes.
Introduce new 'zenith pageserver start/stop' subcommands for
starting/stopping just the page server.
The biggest change here is to the 'zenith init' command. This adds a
new 'zenith init --config=<path to toml file>' option. It takes a toml
config file that describes the environment. In the config file, you
can specify options for the pageserver, like the pg and http ports,
and authentication. For each safekeeper, you can define a name and the
pg and http ports. If you don't use the --config option, you get a
default configuration with a pageserver and one safekeeper. Note that
that's different from the previous default of no safekeepers. Any
fields that are omitted in the configuration file are filled with
defaults. You can also specify the initial tenant ID in the config
file. A couple of sample config files are added in the control_plane/
directory.
The --pageserver-pg-port, --pageserver-http-port, and
--pageserver-auth options to 'zenith init' are removed. Use a config
file instead.
Finally, change the python test fixtures to use the new 'zenith'
commands and the config file to describe the environment.
