charts/gateway OTK Release 4.6.2

[APIM-KiranVaddadi]

Description of the change

• OTK DB install/upgrade using Liquibase scripts for MySql and Oracle.
• OTK DB install/upgrade on the gateways MySQL container (MySQL subchart)
• Install/upgrade OTK of type SINGLE on Ephemeral gateways using initContainer is now supported.
• Added OTK Connection properties to support c3p0 settings.
• Added support OTK read-only connections for MySQL and Oracle.
• Added support for OTK policies customization through config maps and secrets.
• OTK DMZ/Internal gateway certs can now be configured using values file.

Benefits

Drawbacks

Applicable issues

• fixes #

Additional information

Checklist

• [x] Chart version bumped in Chart.yaml according to semver.
• [x] Variables are documented in the README.md
• [x] Title of the PR starts with chart name (e.g. [charts/gateway])
• [x] If the chart contains a values-production.yaml apart from values.yaml, ensure that you implement the changes in both files

[Gazza7205]

In DMZ and Internal mode changes are made to the customizations folder - these changes would be overritten by a customization bundle applied at bootstrap or via Restman/Graphman.

We should document which policies are changed per mode and advise excluding them from custom customization bundles.

This applies to the following (varying across otk types)

• #OTK OVP Configuration
• #OTK Storage Configuration
• #OTK Client Context Variables
• OTK FIP Client Authentication Extension