[CouchDB] Enable secrets to mask username and password

[devamanv]

Proposed commit message

The PR contains changes to allow users to provide username and password as separate fields and marks the password field as secret.

Important points for the reviewers:

• The changes will continue to work for the existing users and the old Host string pattern containing username and password
• Configured username and password take precedence over username/password in the Hosts URI
• The changes were tested with couchdb v3.1, that is also the supported version.

Checklist

• I have reviewed tips for building integrations and this pull request is aligned with them.
• I have verified that all data streams collect metrics or logs.
• I have added an entry to my package's changelog.yml file.
• I have verified that Kibana version constraints are current according to guidelines.

Author's Checklist

• Mark the password field as secret
• Upgrading the package doesn't break the existing integration and metrics still come through
• No dashboards are broken

How to test this PR locally

• Spin up the Elastic stack and point your elastic-package to the running Kibana instance
• Build the package locally and install the package using elastic-package install --zip couchdb-1.3.0.zip
• Upgrade the integration to the latest version i.e. 1.3.0, there shouldn't be any errors. If you find any errors while upgrading, please report it by adding a comment to this PR.
• You should now see separate fields for username and password under advanced options while configuring the Integration for metrics collection
• Take a look at the dashboards, they shouldn't be broken and metrics should still be coming in just fine

Related issues

• Relates to https://github.com/elastic/obs-integration-team/issues/1

Screenshots

[elasticmachine]

🚀 Benchmarks report

To see the full report comment with /test benchmark fullreport

[elastic-sonarqube]

Quality Gate passed

Issues
0 New issues
0 Fixed issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
No data about Duplication

See analysis details on SonarQube

[elasticmachine]

💚 Build Succeeded

• Buildkite Build
• Commit: 9683cc0

History

• 💔 Build #13610 failed 3060352
• 💔 Build #13607 failed 49873bd
• 💔 Build #12380 failed 7175bcf
• 💚 Build #12377 succeeded 5794556
• 💚 Build #12314 succeeded 77aff8a

cc @devamanv

[elastic-sonarqube]

Quality Gate passed

Issues
0 New issues
0 Fixed issues
0 Accepted issues

Measures
0 Security Hotspots
68.8% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube

[elasticmachine]

Package couchdb - 1.4.0 containing this change is available at https://epr.elastic.co/search?package=couchdb