Add manual sidecar definition documentation and example

[ewohltman]

Signed-off-by: Eric Wohltman eric.wohltman@gmail.com

Which problem is this PR solving?

• This PR is in support of Issue Support for StatefulSets and Manual Sidecar Config jaeger-operator#944

Short description of the changes

• This change includes updates for how to include the Jaeger Agent sidecar manually for controllers other than Deployments

[ewohltman]

Is master the correct tag I should be using for next-release?

[jpkrohling]

I think we publish master as latest. @pavolloffay can probably confirm.

[ewohltman]

Found an example of an image tag for next-release using master here:

https://github.com/jaegertracing/documentation/blob/master/content/docs/next-release/operator.md#examples

And in the corresponding 1.17 documentation, it was changed to 1.17.0:

https://github.com/jaegertracing/documentation/blob/master/content/docs/1.17/operator.md#examples

So it would seem that master is the correct tag value for next-release 👍

[jpkrohling]

We use master for the operator, but latest for the Jaeger components in the main repo (collector, agent, query, all-in-one, ingester, ...)

[ewohltman]

Thanks for the clarification! Just updated next-release to point to latest for the agent example.

[jpkrohling]

LGTM, just need to verify the tag for the jaeger-agent image.

[jpkrohling]

Thanks for your contribution!