[LI-HOTFIX] CI: Publish artifacts to JFrog

Squashed commits:
- [LI-HOTFIX] add Bintray support to LinkedIn Kafka Github
- [LI-HOTFIX] Migrate bintray publish to JFrog (apache#132)
- [LI-HOTFIX] Use JFrog Api key instead of password (apache#139)

TICKET = N/A
LI_DESCRIPTION = DEPENG-2065.
This is advised by dep engineering
EXIT_CRITERIA = When not using JFrog for publishing

.github/workflows/build-and-upload-archives-upon-creating-tags.yml

@@ -52,5 +52,8 @@ jobs:
         # Set maxTestRetries for flaky tests.  This is the setup in upstream Jenkinsfile
         run: ./gradlew -PmaxTestRetries=3 cleanTest rat checkstyleMain checkstyleTest spotbugsMain spotbugsTest :clients:test :core:test --no-daemon -PxmlFindBugsReport=true -PtestLoggingEvents=started,passed,skipped,failed
       - name: Upload archive
+        env:
+          JFROG_USERNAME: ${{ secrets.JFROG_USERNAME }}
+          JFROG_API_KEY: ${{ secrets.JFROG_API_KEY }}
         run: |
           ./gradlew -Pversion=${{ env.RELEASE_VERSION }} :clients:uploadArchives :core:uploadArchives --no-daemon

README.md

@@ -181,20 +181,29 @@ The `eclipse` task has been configured to use `${project_dir}/build_eclipse` as
 build directory (`${project_dir}/bin`) clashes with Kafka's scripts directory and we don't use Gradle's build directory
 to avoid known issues with this configuration.
 
-### Publishing the jar for all version of Scala and for all projects to maven ###
+### Publishing the jar for all projects to maven ###
 The recommended command is:
 
-    ./gradlewAll publish
+    ./gradlew -Pversion=<RELEASE_VERSION_NUMBER> publish
 
 For backwards compatibility, the following also works:
 
-    ./gradlewAll uploadArchives
+    ./gradlew -Pversion=<RELEASE_VERSION_NUMBER> uploadArchives
 
-Please note for this to work you should create/update `${GRADLE_USER_HOME}/gradle.properties` (typically, `~/.gradle/gradle.properties`) and assign the following variables
+By default, this command will publish artifacts to a JFrog repository named "kafka" under an account specified by the `JFROG_USERNAME` environment variable; 
+and the `JFROG_API_KEY` environment variable is used for the API key for that account.
+
+If you want to publish for all supported Scala version, change `./gradlew` to `./gradlewAll`.
+
+If you want to override this to use a different maven repository, you should create/update `${GRADLE_USER_HOME}/gradle.properties` (typically, `~/.gradle/gradle.properties`)
+and assign the following variables
 
     mavenUrl=
     mavenUsername=
     mavenPassword=
+
+Signing is disabled by default. If you need signing, please set the following variables in `gradle.properties` as well:
+
     signing.keyId=
     signing.password=
     signing.secretKeyRingFile=

build.gradle

@@ -114,9 +114,13 @@ ext {
   skipSigning = project.hasProperty('skipSigning') && skipSigning.toBoolean()
   shouldSign = !skipSigning && !version.endsWith("SNAPSHOT")
 
-  mavenUrl = project.hasProperty('mavenUrl') ? project.mavenUrl : ''
-  mavenUsername = project.hasProperty('mavenUsername') ? project.mavenUsername : ''
-  mavenPassword = project.hasProperty('mavenPassword') ? project.mavenPassword : ''
+  jfrogUsername = System.getenv('JFROG_USERNAME')
+  jfrogApiKey = System.getenv('JFROG_API_KEY')
+
+  // By default, publish to JFrog.
+  mavenUrl = project.hasProperty('mavenUrl') ? project.mavenUrl : jfrogRepoUrl
+  mavenUsername = project.hasProperty('mavenUsername') ? project.mavenUsername : jfrogUsername
+  mavenPassword = project.hasProperty('mavenPassword') ? project.mavenPassword : jfrogApiKey
 
   userShowStandardStreams = project.hasProperty("showStandardStreams") ? showStandardStreams : null
 
@@ -260,8 +264,8 @@ subprojects {
 
             artifactId = archivesBaseName
             pom {
-              name = 'Apache Kafka'
-              url = 'https://kafka.apache.org'
+              name = 'LinkedIn fork of Apache Kafka'
+              url = 'https://github.com/linkedin/kafka'
               licenses {
                 license {
                   name = 'The Apache License, Version 2.0'

gradle.properties

@@ -13,9 +13,12 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-group=org.apache.kafka
-# NOTE: When you change this version number, you should also make sure to update
-# the version numbers in
+group=com.linkedin.kafka
+
+# NOTE: publishing artifacts requires a property named "version" to be set explicitly. For example,
+#   ./gradlew -Pversion=<version> publish
+#
+# You should also make sure to update the version numbers in
 #  - docs/js/templateData.js
 #  - tests/kafkatest/__init__.py
 #  - tests/kafkatest/version.py (variable DEV_VERSION)
@@ -25,3 +28,5 @@ scalaVersion=2.13.6
 task=build
 org.gradle.jvmargs=-Xmx2g -Xss4m -XX:+UseParallelGC
 org.gradle.parallel=true
+skipSigning=true
+jfrogRepoUrl=https://linkedin.jfrog.io/artifactory/kafka