Hi Austin, In our experience, `rules_scala` and `rules_java` are enough for us at this point.
It's entirely possible I'm not thinking far enough into the future, though, so don't take our lack of investment as a sign it's not worth investing in :) Best, Aaron Levin On Thu, Jun 18, 2020 at 10:27 AM Austin Cawley-Edwards < austin.caw...@gmail.com> wrote: > Great to hear Dan! > > @Aaron - would you/ your team be interested in a `rules_flink` project? > I'm still fairly new to Bazel and know enough to contribute, but could > definitely use guidance on design as well. > > Best, > Austin > > On Mon, Jun 15, 2020 at 11:07 PM Dan Hill <quietgol...@gmail.com> wrote: > >> Thanks for the replies! I was able to use the provided answers to get a >> setup working (maybe not the most efficiently). The main change I made was >> to switch to including the deploy jar in the image (rather than the default >> one). >> >> I'm open to contributing to a "rules_flink" project. I don't know enough >> yet to help design it. >> >> On Sat, Jun 13, 2020 at 4:39 AM Till Rohrmann <trohrm...@apache.org> >> wrote: >> >>> Hi Dan, >>> >>> if you want to run a Flink job without specifying the main class via >>> `bin/flink run --class org.a.b.Foobar` then you have to add a MANIFEST.MF >>> file to your jar under META-INF and this file needs to contain `Main-Class: >>> org.a.b.Foobar`. >>> >>> Cheers, >>> Till >>> >>> On Fri, Jun 12, 2020 at 12:30 AM Austin Cawley-Edwards < >>> austin.caw...@gmail.com> wrote: >>> >>>> Hey all, >>>> >>>> Adding to Aaron's response, we use Bazel to build our Flink apps. We've >>>> open-sourced some of our setup here[1] though a bit outdated. There are >>>> definitely rough edges/ probably needs a good deal of work to fit other >>>> setups. We have written a wrapper around the `java_library` and >>>> `java_binary` and could do the same for `rules_scala`, though we just >>>> started using Bazel last November and have a lot to learn in terms of best >>>> practices there. >>>> >>>> If you're interested in contributing to a `rules_flink` project, I >>>> would be as well! >>>> >>>> Best, >>>> Austin >>>> >>>> [1]: https://github.com/fintechstudios/vp-operator-demo-ff-virtual-2020 >>>> >>>> On Thu, Jun 11, 2020 at 6:14 PM Aaron Levin <aaronle...@stripe.com> >>>> wrote: >>>> >>>>> Hi Dan, >>>>> >>>>> We use Bazel to compile our Flink applications. We're using >>>>> "rules_scala" (https://github.com/bazelbuild/rules_scala) to manage >>>>> the dependencies and produce jars. We haven't had any issues. However, I >>>>> have found that sometimes it's difficult to figure out exactly what Flink >>>>> target or dependency my application needs. >>>>> >>>>> Unfortunately I'm not sure what issue you're seeing here. I would >>>>> guess either your flink application wasn't compiled into the jar >>>>> you're executing. If you can paste the bazel target used to generate your >>>>> jar and how you're launching the application, that will be helpful >>>>> for diagnosis. >>>>> >>>>> On Thu, Jun 11, 2020 at 5:21 PM Dan Hill <quietgol...@gmail.com> >>>>> wrote: >>>>> >>>>>> I took the Flink playground and I'm trying to swap out Maven for >>>>>> Bazel. I got to the point where I'm hitting the following error. I want >>>>>> to diff my code with an existing, working setup. >>>>>> >>>>>> Thanks! - Dan >>>>>> >>>>>> >>>>>> client_1 | >>>>>> org.apache.flink.client.program.ProgramInvocationException: >>>>>> Neither a 'Main-Class', nor a 'program-class' entry was found in the jar >>>>>> file. >>>>>> >>>>>> client_1 | at >>>>>> org.apache.flink.client.program.PackagedProgram.getEntryPointClassNameFromJar(PackagedProgram.java:596) >>>>>> >>>>>> client_1 | at >>>>>> org.apache.flink.client.program.PackagedProgram.<init>(PackagedProgram.java:190) >>>>>> >>>>>> client_1 | at >>>>>> org.apache.flink.client.program.PackagedProgram.<init>(PackagedProgram.java:128) >>>>>> >>>>>> client_1 | at >>>>>> org.apache.flink.client.cli.CliFrontend.buildProgram(CliFrontend.java:862) >>>>>> >>>>>> client_1 | at >>>>>> org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:204) >>>>>> >>>>>> client_1 | at >>>>>> org.apache.flink.client.cli.CliFrontend.parseParameters(CliFrontend.java:1050) >>>>>> >>>>>> client_1 | at >>>>>> org.apache.flink.client.cli.CliFrontend.lambda$main$11(CliFrontend.java:1126) >>>>>> >>>>>> client_1 | at >>>>>> org.apache.flink.runtime.security.NoOpSecurityContext.runSecured(NoOpSecurityContext.java:30) >>>>>> >>>>>> client_1 | at >>>>>> org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1126) >>>>>> >>>>>
