feat: Add Kafka Connect Cloud Bigtable sink connector

.github/workflows/ci.yaml

@@ -33,12 +33,12 @@ jobs:
         distribution: temurin
         java-version: ${{matrix.java}}
     - run: java -version
-    - run: .kokoro/build.sh
-      env:
-        JOB_TYPE: test
-  units-java8:
-    # Building using Java 17 and run the tests with Java 8 runtime
-    name: "units (8)"
+    - run: mvn -B -ntp test
+      # TODO: remove in the target repo
+      working-directory: google-cloud-bigtable-kafka-connect-sink
+  units-java11:
+    # Building using Java 21 and run the tests with Java 11 runtime
+    name: "units (11)"
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -53,71 +53,79 @@ jobs:
         shell: bash
       - uses: actions/setup-java@v4
         with:
-          java-version: 17
+          java-version: 21
           distribution: temurin
-      - run: .kokoro/build.sh
-        env:
-          JOB_TYPE: test
-  windows:
-    runs-on: windows-latest
+      - run: mvn -B -ntp test
+        # TODO: remove in the target repo
+        working-directory: google-cloud-bigtable-kafka-connect-sink
+  integrations:
+    runs-on: ubuntu-latest
     steps:
-    - name: Support longpaths
-      run: git config --system core.longpaths true
     - uses: actions/checkout@v4
     - uses: actions/setup-java@v4
       with:
         distribution: temurin
-        java-version: 8
+        java-version: 11
     - run: java -version
-    - run: .kokoro/build.bat
-      env:
-        JOB_TYPE: test
-  dependencies:
+    - name: 'Set up Cloud SDK'
+      uses: 'google-github-actions/setup-gcloud@v2'
+      with:
+        version: latest
+        install_components: beta,bigtable
+    - run: |
+        set -euo pipefail
+        gcloud beta emulators bigtable start --host-port=0.0.0.0:8086 &
+        mvn -B -ntp verify -DskipUnitTests
+      # TODO: remove in the target repo
+      working-directory: google-cloud-bigtable-kafka-connect-sink
+  package:
     runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        java: [17]
     steps:
     - uses: actions/checkout@v4
     - uses: actions/setup-java@v4
       with:
         distribution: temurin
-        java-version: ${{matrix.java}}
+        java-version: 11
     - run: java -version
-    - run: .kokoro/dependencies.sh
-  javadoc:
-    runs-on: ubuntu-latest
+    - run: mvn -B -ntp package -Dmaven.test.skip
+      # TODO: remove in the target repo
+      working-directory: google-cloud-bigtable-kafka-connect-sink
+  windows:
+    runs-on: windows-latest
     steps:
+    - name: Support longpaths
+      run: git config --system core.longpaths true
     - uses: actions/checkout@v4
     - uses: actions/setup-java@v4
       with:
         distribution: temurin
-        java-version: 17
+        java-version: 11
     - run: java -version
-    - run: .kokoro/build.sh
-      env:
-        JOB_TYPE: javadoc
-  lint:
+    - run: mvn -B -ntp test
+      # TODO: remove in the target repo
+      working-directory: google-cloud-bigtable-kafka-connect-sink
+  javadoc:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
     - uses: actions/setup-java@v4
       with:
         distribution: temurin
-        java-version: 11
+        java-version: 17
     - run: java -version
-    - run: .kokoro/build.sh
-      env:
-        JOB_TYPE: lint
-  clirr:
+    # TODO: also run javadoc:test-javadoc?
+    - run: mvn -B -ntp javadoc:javadoc
+      # TODO: remove in the target repo
+      working-directory: google-cloud-bigtable-kafka-connect-sink
+  lint:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
     - uses: actions/setup-java@v4
       with:
         distribution: temurin
-        java-version: 8
+        java-version: 11
     - run: java -version
-    - run: .kokoro/build.sh
-      env:
-        JOB_TYPE: clirr
+    - run: mvn -B -ntp spotless:check
+      # TODO: remove in the target repo
+      working-directory: google-cloud-bigtable-kafka-connect-sink

google-cloud-bigtable-kafka-connect-sink/.gitignore

@@ -0,0 +1,3 @@
+target
+.idea
+*.iml

google-cloud-bigtable-kafka-connect-sink/LICENSE

@@ -0,0 +1,201 @@
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google-cloud-bigtable-kafka-connect-sink/README.md

@@ -0,0 +1,14 @@
+# Code organization
+The maven project is split into two modules:
+- [sink](sink) - the sink and its unit tests
+- [integration-tests](integration-tests) - the integration tests
+
+This split enables two desirable properties for the integration tests:
+- the versions of dependencies used by the integration tests and the sink may be different (since Kafka Connect isolates connectors' class loaders automatically),
+- the sink is provided to the integration tests with a directory of jars just like in a real Kafka Connect deployment.
+
+# Tests
+For details on running the tests, please see [doc/tests.md](doc/tests.md).
+
+# Performance test setup
+The performance test setup is described in detail in [doc/performance/README.md](doc/performance/README.md).