This PR does those things:
- It allows API calls `MetaWrite` and `MetaRead` in maintenance mode.
- SystemInformation resource now waits for available META
- SystemInformation resource now overwrites UUID from META if there is an override
- META now supports "UUID override" and "unique token" keys
- ProvisionRequest now includes unique token and Talos version
For #7694
Signed-off-by: Dmitriy Matrenichev <dmitry.matrenichev@siderolabs.com>
New variable value is coming from `META`, and it might be set using the
interactive console (not implemented yet, but it will come soon).
I had to refactor the URL expansion implementation:
* simplify things where possible
* provide more unit-tests for smaller units
* handle expansion of all variables in parallel
* allow parallel expansion on multiple variables
Also I refactored download code to support proper passing of endpoint
function with context.
The end result:
* Talos will try to download config for 3 hours before rebooting
* Each attempt which includes URL expansion + download is limited to 3
minutes
Signed-off-by: Andrey Smirnov <andrey.smirnov@talos-systems.com>
A special META key might contain optional platform network config for
the `METAL` platform.
It is completely optional, but if present, it works same way as in the
clouds: it is applied with low priority (can be overridden with machine
config), but provides some initial defaults for the machine.
Signed-off-by: Andrey Smirnov <andrey.smirnov@talos-systems.com>
Use a global instance, handle loading/saving META in global context.
Deprecate legacy syslinux ADV, provide an easier interface for
consumers.
Expose META as resources.
Fix the bootloader revert process (it was completely broken for quite a
while :sad:).
This is a first step which mostly does preparation work, real changes
will come in the next PRs:
* add APIs to write to META
* consume META keys for platform network config for `metal`
* custom key for URL `${code}`
Signed-off-by: Andrey Smirnov <andrey.smirnov@talos-systems.com>
