Configurable retry options for file-lock testcontainers-node.lock

[GiDW]

Our current setup in which we use testcontainers consist of jest tests that spin up a container.

This works well however, spinning up a container becomes slower depending on the amount of tests that are started in parallel.

I've tracked it down to the file-lock around testcontainers-node.lock. Tweaking the retry options for proper-lockfile can really speed-up our test suite.

I've made a PR to make the retry options configurable by the user. #886

Would this be something that can be considered adding to testcontainers?

[cristianrgreco]

Implemented by #890