#78 - Add support for WireMock CLI options as environment variable

[kapishmalik]

This PR adds option to pass wiremock options as env variable to docker file and use it from helm chart.

References

Resolves - https://github.com/wiremock/wiremock-docker/issues/78

Submitter checklist

• [x] Recommended: Join WireMock Slack to get any help in #help-contributing or a project-specific channel like #wiremock-java
• [x] Recommended: If you participate in Hacktoberfest 2023, make sure you're signed up there and in the WireMock form
• [x] The PR request is well described and justified, including the body and the references
• [x] The PR title represents the desired changelog entry
• [x] The repository's code style is followed (see the contributing guide)
• [x] For new features, there's necessary documentation in this pull request or in a subsequent PR to wiremock.org

[kapishmalik]

@oleg-nenashev no change is required on alpine as I have done change at common script docker-entrypoint.sh which is being invoked in both Dockerfiles. Also, integration test written are using testcontainer. Is there any mechanism to set environment variables.

[oleg-nenashev]

There is another entry point for alpine https://github.com/wiremock/wiremock-docker/blob/main/alpine/docker-entrypoint.sh

[oleg-nenashev]

And yes, there is a GenericContainer#withEnv() method

[kapishmalik]

@oleg-nenashev incorporated review comment changes.