Add ConfigMap template for plugins configuration

[bgoareguer]

Fix #435

[codecov]

Codecov Report

Merging #437 (4f0fd93) into main (42c8621) will increase coverage by 0.47%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #437      +/-   ##
==========================================
+ Coverage   68.37%   68.85%   +0.47%     
==========================================
  Files          57       57              
  Lines        3371     3371              
==========================================
+ Hits         2305     2321      +16     
+ Misses        785      772      -13     
+ Partials      281      278       -3     

Impacted Files	Coverage Δ
pkg/operator/controller/ciskubebenchreport.go	65.68% <0.00%> (+1.18%)	⬆️
pkg/operator/controller/vulnerabilityreport.go	63.67% <0.00%> (+3.30%)	⬆️
pkg/operator/controller/configauditreport.go	69.23% <0.00%> (+3.36%)	⬆️

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[danielpacak]

Have you tested this change @bgoareguer ? I got the following error on my end:

{"level":"error","ts":1616139567.4504297,"logger":"reconciler.configauditreport","msg":"Scan job container","job":"starboard-operator/scan-configauditreport-c4956cb9d","container":"polaris","status.reason":"Error","status.message":"time="2021-03-19T07:39:26Z" level=error msg="Error parsing config at /etc/starboard/polaris.config.yaml: Decoding config failed: error unmarshaling JSON: while decoding JSON: json: cannot unmarshal array into Go struct field Configuration.checks of type config.Severity"\n"

Notice that we mount the polaris.config.yaml key as file at /etc/starboard/polaris.config.yaml in the container of a pod controlled by a can job. I believe the value should be string not object. Compare your change with https://github.com/aquasecurity/starboard/blob/main/deploy/static/05-starboard-operator.config.yaml#L14

[bgoareguer]

Sorry, I just started the starboard-operator without deploying a workload to scan.
I reproduced the error and the last commit fixes it.

[danielpacak]

Thank you @bgoareguer LGTM!