Gradle 7.0 refused to run docker because of undeclared dependency

[ihchristianto]

What happened?

Gradle 7.0 refused to build the project because the library does not declare dependencies on other task. If we use Gradle 6.7.1 it was okay. Maybe Gradle becomes stricter. Directory & subproject names have been censored.

Execution optimizations have been disabled for task ':dockerPrepare' to ensure correctness due to the following reasons:
  - Gradle detected a problem with the following location: '*******************'. Reason: Task ':dockerPrepare' uses this output of task ':bootBuildInfo' without declaring an explicit or implicit dependency. This can lead to incorrect results being produced, depending on what order the tasks are executed. Please refer to https://docs.gradle.org/7.0/userguide/validation_problems.html#implicit_dependency for more details about this problem.
  - Gradle detected a problem with the following location: '*******************'. Reason: Task ':dockerPrepare' uses this output of task ':bootJar' without declaring an explicit or implicit dependency. This can lead to incorrect results being produced, depending on what order the tasks are executed. Please refer to https://docs.gradle.org/7.0/userguide/validation_problems.html#implicit_dependency for more details about this problem.
  - Gradle detected a problem with the following location: '*******************'. Reason: Task ':dockerPrepare' uses this output of task ':bootJarMainClassName' without declaring an explicit or implicit dependency. This can lead to incorrect results being produced, depending on what order the tasks are executed. Please refer to https://docs.gradle.org/7.0/userguide/validation_problems.html#implicit_dependency for more details about this problem.
  - Gradle detected a problem with the following location: '*******************'. Reason: Task ':dockerPrepare' uses this output of task ':compileJava' without declaring an explicit or implicit dependency. This can lead to incorrect results being produced, depending on what order the tasks are executed. Please refer to https://docs.gradle.org/7.0/userguide/validation_problems.html#implicit_dependency for more details about this problem.
  - Gradle detected a problem with the following location: '*******************'. Reason: Task ':dockerPrepare' uses this output of task ':compileKotlin' without declaring an explicit or implicit dependency. This can lead to incorrect results being produced, depending on what order the tasks are executed. Please refer to https://docs.gradle.org/7.0/userguide/validation_problems.html#implicit_dependency for more details about this problem.
  - Gradle detected a problem with the following location: '*******************'. Reason: Task ':dockerPrepare' uses this output of task ':***************:compileJava' without declaring an explicit or implicit dependency. This can lead to incorrect results being produced, depending on what order the tasks are executed. Please refer to https://docs.gradle.org/7.0/userguide/validation_problems.html#implicit_dependency for more details about this problem.
  - Gradle detected a problem with the following location: '*******************'. Reason: Task ':dockerPrepare' uses this output of task ':***************:compileKotlin' without declaring an explicit or implicit dependency. This can lead to incorrect results being produced, depending on what order the tasks are executed. Please refer to https://docs.gradle.org/7.0/userguide/validation_problems.html#implicit_dependency for more details about this problem.
  - Gradle detected a problem with the following location: '*******************'. Reason: Task ':dockerPrepare' uses this output of task ':***************:inspectClassesForKotlinIC' without declaring an explicit or implicit dependency. This can lead to incorrect results being produced, depending on what order the tasks are executed. Please refer to https://docs.gradle.org/7.0/userguide/validation_problems.html#implicit_dependency for more details about this problem.
  - Gradle detected a problem with the following location: '*******************'. Reason: Task ':dockerPrepare' uses this output of task ':***************:jar' without declaring an explicit or implicit dependency. This can lead to incorrect results being produced, depending on what order the tasks are executed. Please refer to https://docs.gradle.org/7.0/userguide/validation_problems.html#implicit_dependency for more details about this problem.
  - Gradle detected a problem with the following location: '*******************'. Reason: Task ':dockerPrepare' uses this output of task ':***************:processResources' without declaring an explicit or implicit dependency. This can lead to incorrect results being produced, depending on what order the tasks are executed. Please refer to https://docs.gradle.org/7.0/userguide/validation_problems.html#implicit_dependency for more details about this problem.
  - Gradle detected a problem with the following location: '*******************'. Reason: Task ':dockerPrepare' uses this output of task ':**********:compileJava' without declaring an explicit or implicit dependency. This can lead to incorrect results being produced, depending on what order the tasks are executed. Please refer to https://docs.gradle.org/7.0/userguide/validation_problems.html#implicit_dependency for more details about this problem.
  - Gradle detected a problem with the following location: '*******************'. Reason: Task ':dockerPrepare' uses this output of task ':**********:compileKotlin' without declaring an explicit or implicit dependency. This can lead to incorrect results being produced, depending on what order the tasks are executed. Please refer to https://docs.gradle.org/7.0/userguide/validation_problems.html#implicit_dependency for more details about this problem.
  - Gradle detected a problem with the following location: '*******************'. Reason: Task ':dockerPrepare' uses this output of task ':**********:inspectClassesForKotlinIC' without declaring an explicit or implicit dependency. This can lead to incorrect results being produced, depending on what order the tasks are executed. Please refer to https://docs.gradle.org/7.0/userguide/validation_problems.html#implicit_dependency for more details about this problem.
  - Gradle detected a problem with the following location: '*******************'. Reason: Task ':dockerPrepare' uses this output of task ':**********:jar' without declaring an explicit or implicit dependency. This can lead to incorrect results being produced, depending on what order the tasks are executed. Please refer to https://docs.gradle.org/7.0/userguide/validation_problems.html#implicit_dependency for more details about this problem.
  - Gradle detected a problem with the following location: '*******************'. Reason: Task ':dockerPrepare' uses this output of task ':**********:processResources' without declaring an explicit or implicit dependency. This can lead to incorrect results being produced, depending on what order the tasks are executed. Please refer to https://docs.gradle.org/7.0/userguide/validation_problems.html#implicit_dependency for more details about this problem.
  - Gradle detected a problem with the following location: '*******************'. Reason: Task ':dockerPrepare' uses this output of task ':processResources' without declaring an explicit or implicit dependency. This can lead to incorrect results being produced, depending on what order the tasks are executed. Please refer to https://docs.gradle.org/7.0/userguide/validation_problems.html#implicit_dependency for more details about this problem.

Refer to: https://docs.gradle.org/7.0/release-notes.html

What did you want to happen?

docker command should just run with latest Gradle 7.0 Will try to find workaround for the moment

[ihchristianto]

Fixed by changing plugin files settings in build.gradle.kts & COPY operation path in dockerfile from:

• build.gradle.kts, note it refer files from the root project dir

docker {
    dependsOn(tasks["build"])
    buildArgs(mapOf(
        Pair("APP_VERSION", "$version"),
        Pair("APP_NAME", rootProject.name)
    ))
    name = "gcr.io/**********/credit:${System.currentTimeMillis() / 1000}"
    files("$projectDir")
}

• dockerfile

ARG APP_NAME
ARG APP_VERSION
ARG JAR_FILE=build/libs/${APP_NAME}-${APP_VERSION}.jar
COPY ${JAR_FILE} app.jar

---

Into:

• build.gradle.kts, note now it refers files from the previous task result

docker {
    dependsOn(tasks["build"])
    buildArgs(mapOf(
        Pair("APP_VERSION", "$version"),
        Pair("APP_NAME", rootProject.name)
    ))
    name = "gcr.io/**********/credit:${System.currentTimeMillis() / 1000}"
    files(tasks.withType<org.springframework.boot.gradle.tasks.bundling.BootJar>{ archiveFile })
}

• dockerfile

ARG APP_NAME
ARG APP_VERSION
ARG JAR_FILE=${APP_NAME}-${APP_VERSION}.jar
COPY ${JAR_FILE} app.jar

[aldoKelvianto]

I've tried to remove dependsOn task but the problem still occurs.

I believe Gradle 7.0 doesn't allow us to use projectDir. Maybe because the root project is too dynamic so the task may fail when a certain folder doesn't exist or a task is failed.

So, another solution is to use buildDir instead of projectDir.

build.gradle.kts

docker {
    buildArgs(
        mapOf(
            Pair("APP_VERSION", "$version"),
            Pair("APP_NAME", rootProject.name)
        )
    )
    name = "gcr.io/****/credit:${System.currentTimeMillis() / 1000}"
    files("$buildDir")
}

Dockerfile

ARG APP_NAME
ARG APP_VERSION
ARG JAR_FILE=/libs/${APP_NAME}-${APP_VERSION}.jar
COPY ${JAR_FILE} app.jar

ENTRYPOINT ["java", "-jar", "/app.jar"]

[szaffarano]

You can configure tasks dependencies in this way (just change bootJar with the one you want):

tasks.dockerPrepare.configure {
    dependsOn(tasks.bootJar.name)
}