basic auth for API and Metrics

[fjogeleit]

BasicAuthentication for APIs and Metrics endpoints

health- and readycheck API are excluded

• username and password are configured as global values in Helm
• applied on APIs and metrics
• if monitoring is enabled it will also create a secret with the credentials in the ServiceMonitor namespace end applied to the endpoint configuration
• authentication will be applied to core app and kyverno plugin, if enabled
• UI will be configured to do authenticated calls

[github-actions]

Pull Request Test Coverage Report for Build 6130903114

• 41 of 86 (47.67%) changed or added relevant lines in 3 files are covered.
• 12 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-1.1%) to 91.066%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
pkg/api/server.go	36	41	87.8%
pkg/config/resolver.go	5	22	22.73%
pkg/api/basic_auth.go	0	23	0.0%

Files with Coverage Reduction	New Missed Lines	%
pkg/api/server.go	12	75.96%

Totals
Change from base Build 6083235733:	-1.1%
Covered Lines:	4475
Relevant Lines:	4914

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💛 - Coveralls