Create Variables to setup TLS Client

[mmorel-35]

Changes

Add new environement variables :

• OTEL_EXPORTER_ZIPKIN_CERTIFICATE
• OTEL_EXPORTER_ZIPKIN_CLIENT_KEY
• OTEL_EXPORTER_ZIPKIN_CLIENT_CERTIFICATE

Theses variables are based on the existing OTLP variables from here

Related to open-telemetry/opentelemetry-java#5085

[tigrannajaryan]

There is currently a moratorium (with exceptions possible) on env variables: #2891 (comment)

Please read the moratorium rules and if you believe the changes in PR don't fall under the specified rules then the PR can be reviewed.

[mmorel-35]

Hi @tigrannajaryan ,

I saw the comment, but except if I misunderstood, I don't think the variables I'm proposing are blocked by the quoted criteria.
Do you have different perception ?

[tigrannajaryan]

Hi @tigrannajaryan ,

I saw the comment, but except if I misunderstood, I don't think the variables I'm proposing are blocked by the quoted criteria. Do you have different perception ?

I had a quick look at the PR and I think it may be accepted as an exception to moratorium since it is very similar to env variable that we already have for OTLP.

[github-actions]

This PR was marked stale due to lack of activity. It will be closed in 7 days.

[github-actions]

Closed as inactive. Feel free to reopen if this PR is still being worked on.