lack of docs for usage with official wiremock docker image

[typekpb]

Proposal

The Readme.md file should document proper usage in docker.

Reproduction steps

Having Dockerfile with contents:

FROM wiremock/wiremock:3.5.2

COPY ./extensions /var/wiremock/extensions

where ./extensions dir contains: wiremock-jwt-extension-0.1.0.jar (downloaded from: https://mvnrepository.com/artifact/org.wiremock.extensions/wiremock-jwt-extension/0.1.0)

Running the command results in error:

podman build -t foo:latest . && podman run --rm -p 8082:8080 foo:latest --verbose --extensions org.wiremock.extension.jwt.JwtExtensionFactory

STEP 1/3: FROM wiremock/wiremock:3.5.2
STEP 2/3: COPY ./wiremock /home/wiremock
--> dd63ab497386
STEP 3/3: COPY ./extensions /var/wiremock/extensions
COMMIT foo:latest
--> 92a50e4f087e
Successfully tagged localhost/foo:latest
92a50e4f087ec3e2677c0a4a15d91df5faf47c717f64a58f5cb0083a71058b40
2024-05-26 22:06:50.343 Verbose logging enabled
Exception in thread "main" java.lang.ClassCastException: class org.wiremock.extension.jwt.JwtExtensionFactory cannot be cast to class com.github.tomakehurst.wiremock.extension.Extension (org.wiremock.extension.jwt.JwtExtensionFactory and com.github.tomakehurst.wiremock.extension.Extension are in unnamed module of loader 'app')
        at com.github.tomakehurst.wiremock.extension.Extensions.load(Extensions.java:230)
        at java.base/java.util.stream.ReferencePipeline$3$1.accept(Unknown Source)
        at java.base/java.util.stream.ReferencePipeline$3$1.accept(Unknown Source)
        at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(Unknown Source)
        at java.base/java.util.stream.AbstractPipeline.copyInto(Unknown Source)
        at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source)
        at java.base/java.util.stream.StreamSpliterators$WrappingSpliterator.forEachRemaining(Unknown Source)
        at java.base/java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Unknown Source)
        at java.base/java.util.stream.AbstractPipeline.copyInto(Unknown Source)
        at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source)
        at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(Unknown Source)
        at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(Unknown Source)
        at java.base/java.util.stream.AbstractPipeline.evaluate(Unknown Source)
        at java.base/java.util.stream.ReferencePipeline.forEach(Unknown Source)
        at com.github.tomakehurst.wiremock.extension.Extensions.load(Extensions.java:80)
        at com.github.tomakehurst.wiremock.core.WireMockApp.<init>(WireMockApp.java:107)
        at com.github.tomakehurst.wiremock.WireMockServer.<init>(WireMockServer.java:74)
        at com.github.tomakehurst.wiremock.standalone.WireMockServerRunner.run(WireMockServerRunner.java:71)
        at wiremock.Run.main(Run.java:23)

References

No response

[typekpb]

OK, I seem to have found the working way in the meantime, usage of: https://mvnrepository.com/artifact/org.wiremock.extensions/wiremock-jwt-extension-standalone/0.1.0 with command:

podman build -t foo:latest . && podman run --rm -p 8082:8080 foo:latest --verbose

starts properly, listing the expected extensions:

extensions:                   jwt-signing-key-settings-listener,jwt-initialiser,jwt-template-helpers,response-template,webhook

Anyway, might be worth documenting in the Readme.md

[jrnorth]

+1
This is still an issue with wiremock 3.10.0 and extension version 0.2.0

[johndevs]

Ran into this as well, anybody solved this?

[jrnorth]

@johndevs I was able to get this to work by copying the standalone JAR into the /var/wiremock/extensions directory. Here's how I achieved that using Testcontainers:

  @Container
  static final GenericContainer<?> wiremock =
      new GenericContainer<>(DockerImageName.parse("wiremock/wiremock").withTag("3.10.0"))
          .withEnv("WIREMOCK_OPTIONS", "--verbose")
          .withNetwork(network)
          .withNetworkAliases("wiremock")
          .withExposedPorts(8080)
          // copy the standalone extension JAR into the extensions directory
          .withCopyFileToContainer(
              forClasspathResource("wiremock-jwt-extension-standalone.jar"),
              "/var/wiremock/extensions/wiremock-jwt-extension-standalone.jar")
          .withCopyFileToContainer(forClasspathResource("mappings"), "/home/wiremock/mappings")
          .waitingFor(forListeningPorts(8080))
          .withLogConsumer(new Slf4jLogConsumer(WIREMOCK_LOGGER));