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Update label examples: direct access and map_get, note indexed queries

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Alon Girmonsky
2026-03-18 17:11:35 -07:00
parent 10dbedf356
commit 37f8becb7b
1 changed files with 17 additions and 4 deletions
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skills/kfl/SKILL.md
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@@ -125,13 +125,26 @@ Match against any direction (src or dst):
### Labels and Annotations
```
map_get(local_labels, "app", "") == "checkout" // Safe access with default
// Direct access — works when the label is expected to exist
local_labels.app == "payment" || remote_labels.app == "payment"
// Safe access with default — use when the label may not exist
map_get(local_labels, "app", "") == "checkout"
map_get(remote_labels, "version", "") == "canary"
"tier" in local_labels // Label existence check
// Label existence check
"tier" in local_labels
```
Always use `map_get()` for labels and annotations — direct access like
`local_labels["app"]` errors if the key doesn't exist.
Direct access (`local_labels.app`) returns an error if the key doesn't exist.
Use `map_get()` when you're not sure the label is present on all workloads.
Queries can be as complex as needed — combine labels with any other fields.
Responses are fast because all API elements are indexed:
```
local_labels.app == "payment" && http && status_code >= 500 && dst.pod.namespace == "production"
```
### Node and Process