Add integration test for Identity

[juniortaeza]

Desired Outcome

This pull request adds integration tests for Identity.

Implemented Changes

• adds integration tests for Identity
• updates start script to support Identity configurations
• updates container to capture Identity environment variables
• adds Identity users template file for policy loading and general secrets file

Changelog

• The CHANGELOG has been updated, or
• This PR does not include user-facing changes and doesn't require a
  CHANGELOG update

Test coverage

• This PR includes new unit and integration tests to go with the code
  changes, or
• The changes in this PR do not require tests

Documentation

• Docs (e.g. READMEs) were updated in this PR
• A follow-up issue to update official docs has been filed here: [insert issue ID]
• This PR does not require updating any documentation

Behavior

• This PR changes product behavior and has been reviewed by a PO, or
• These changes are part of a larger initiative that will be reviewed later, or
• [] No behavior was changed with this PR

Security

• Security architect has reviewed the changes in this PR,
• These changes are part of a larger initiative with a separate security review, or
• There are no security aspects to these changes

[codeclimate]

Function TestOIDCIntegration has 114 lines of code (exceeds 70 allowed). Consider refactoring.

[codeclimate]

Code Climate has analyzed commit fb5d4e1 and detected 1 issue on this pull request.

Here's the issue category breakdown:

Category	Count
Complexity	1

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 82.3% (0.0% change).

View more on Code Climate.