Snapshot Deny List

[bowenlan-amzn]

Issue #, if available:

Description of changes:

Consume cluster setting opendistro.index_state_management.snapshot.deny_list from Runner, pass it to Snapshot Step, will block any snapshot repository if it matches with the prefix in the cluster setting.

We cannot directly consume this cluster setting in Snapshot Step, since it is not instantiate when the plugin started, it can only start to consume cluster setting when it's instantiated.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov]

Codecov Report

Merging #366 (ce961f8) into master (ae97e5a) will increase coverage by 0.34%.
The diff coverage is 96.77%.

@@             Coverage Diff              @@
##             master     #366      +/-   ##
============================================
+ Coverage     76.21%   76.55%   +0.34%     
- Complexity     1455     1457       +2     
============================================
  Files           188      188              
  Lines          7314     7332      +18     
  Branches       1186     1187       +1     
============================================
+ Hits           5574     5613      +39     
+ Misses         1096     1078      -18     
+ Partials        644      641       -3     

Impacted Files	Coverage Δ	Complexity Δ
...atemanagement/step/snapshot/AttemptSnapshotStep.kt	90.27% <95.45%> (+1.38%)	10.00 <1.00> (+2.00)
...ticsearch/indexmanagement/IndexManagementPlugin.kt	92.17% <100.00%> (+0.06%)	11.00 <0.00> (ø)
...exstatemanagement/settings/ManagedIndexSettings.kt	98.71% <100.00%> (+0.12%)	1.00 <0.00> (ø)
...ent/indexstatemanagement/util/ManagedIndexUtils.kt	78.35% <100.00%> (+0.11%)	88.00 <1.00> (+1.00)
...nt/indexstatemanagement/model/destination/Slack.kt	40.90% <0.00%> (-13.64%)	2.00% <0.00%> (-2.00%)
...icsearch/indexmanagement/rollup/model/ISMRollup.kt	92.66% <0.00%> (-1.84%)	29.00% <0.00%> (-2.00%)
...agement/indexstatemanagement/ManagedIndexRunner.kt	55.65% <0.00%> (+0.61%)	41.00% <0.00%> (ø%)
...anagement/indexstatemanagement/model/Transition.kt	67.69% <0.00%> (+3.07%)	5.00% <0.00%> (ø%)
...adata/TransportUpdateManagedIndexMetaDataAction.kt	88.88% <0.00%> (+3.70%)	10.00% <0.00%> (+1.00%)
...statemanagement/model/destination/CustomWebhook.kt	94.20% <0.00%> (+28.98%)	14.00% <0.00%> (+2.00%)

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