vmalert-tool: add more syntax checks for input_series and exp_samples (#7263)

address https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7224,
allow using
```
        exp_samples:
          - labels: '{}'
```
for prometheus compatibility.

---------

Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: hagen1778 <roman@victoriametrics.com>
This commit is contained in:
Hui Wang 2024-10-17 17:00:34 +08:00 committed by Zakhar Bessarab
parent 8bb3ef09f9
commit 952fce152a
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@ -31,6 +31,7 @@ See also [LTS releases](https://docs.victoriametrics.com/lts-releases/).
* BUGFIX: `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/cluster-victoriametrics/): properly process response in [multi-level cluster setup](https://docs.victoriametrics.com/cluster-victoriametrics/#multi-level-cluster-setup). Before, vmselect could return no data in multi-level setup. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7270) for details. The issue was introduced in [v1.104.0](https://docs.victoriametrics.com/changelog/#v11040).
* BUGFIX: [vmctl](https://docs.victoriametrics.com/vmctl/): properly add metrics tags for `opentsdb` migration source. Previously it could have empty values. See [this PR](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7161).
* BUGFIX: [vmalert-tool](https://docs.victoriametrics.com/vmalert-tool/): reduce the initial health check interval for datasource. This reduces the time spent on evaluating rules by vmalert-tool. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6970).
* BUGFIX: [vmalert-tool](https://docs.victoriametrics.com/vmalert-tool/): allow specifying empty labels list `labels: '{}'` in the same way as promtool does. This improves compatibility between these tools.
## [v1.104.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.104.0)