Merge ~aieri/charm-hw-health:bug/1928404 into charm-hw-health:master

[Andrea Ieri]

Amend the ack-sel documentation.

Only entries _newer_ than the set date will be considered for alerting.

Closes-bug: 1928404

[🤖 prod-jenkaas-bootstack (prod-jenkaas-bootstack)]

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[🤖 prod-jenkaas-bootstack (prod-jenkaas-bootstack)]

FAILED: Continuous integration, rev:107ae594539b2ed8d7544eacf2d5a8a6cd6fa9f2
https://jenkins.canonical.com/bootstack/job/lp-charm-hw-health-ci/6/
Executed test runs:
    FAILURE: https://jenkins.canonical.com/bootstack/job/lp-charm-test-unit/67/
    None: https://jenkins.canonical.com/bootstack/job/lp-update-mp/194/

Click here to trigger a rebuild:
https://jenkins.canonical.com/bootstack/job/lp-charm-hw-health-ci/6//rebuild

review: Needs Fixing (continuous-integration)

[Xav Paice (xavpaice)]

LGTM

review: Approve

diff --git a/src/actions.yaml b/src/actions.yaml
index d66df4d..888711d 100644
--- a/src/actions.yaml
+++ b/src/actions.yaml
@@ -11,12 +11,18 @@ show-sel:
       type: boolean
       description: Show all events, not just the non-nominal ones.
 ack-sel:
-  description: |
-    Set date filter for ipmi-sel to filter out old logs from ongoing reports.
+  description: >
+    The IPMI check alerts whenever entries are present in the SEL.
+
+    This action limits the alerting to entries newer than than the date
+    specified via the 'date' parameter, effectively acknowledging any older
+    entry.
   params:
     date:
       type: string
-      description: Newer entries than specified date will be left out, format is YYYY-MM-DD (default to now if unspecified)
+      description: |
+        Lower threshold for ipmi-sel alerts. The format is YYYY-MM-DD.
+        Defaults to the current date.
 unack-sel:
   description: |
     Unset the date filter set by ack-sel action.