[FLINK-36286][Connectors/Prometheus] Set up Github workflows
diff --git a/.github/workflows/common.yml b/.github/workflows/common.yml
new file mode 100644
index 0000000..f37bd59
--- /dev/null
+++ b/.github/workflows/common.yml
@@ -0,0 +1,111 @@
+################################################################################
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+# limitations under the License.
+################################################################################
+
+on:
+  workflow_call:
+    inputs:
+      flink_url:
+        description: "Url to Flink binary."
+        required: true
+        type: string
+      flink_version:
+        description: "Flink version to test against."
+        required: true
+        type: string
+      jdk_version:
+        description: "Jdk version to test against."
+        required: false
+        default: 8, 11
+        type: string
+      cache_flink_binary:
+        description: "Whether to cache the Flink binary. Should be false for SNAPSHOT URLs, true otherwise."
+        required: true
+        type: boolean
+      timeout_global:
+        description: "The timeout in minutes for the entire workflow."
+        required: false
+        type: number
+        default: 60
+      timeout_test:
+        description: "The timeout in minutes for the compile and test step."
+        required: false
+        type: number
+        default: 50
+
+jobs:
+  compile_and_test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        jdk: ${{ fromJSON(format('[{0}]', inputs.jdk_version)) }}
+    timeout-minutes: ${{ inputs.timeout_global }}
+    env:
+      MVN_COMMON_OPTIONS: -U -B --no-transfer-progress -Dflink.version=${{ inputs.flink_version }}
+      MVN_CONNECTION_OPTIONS: -Dhttp.keepAlive=false -Dmaven.wagon.http.pool=false -Dmaven.wagon.httpconnectionManager.ttlSeconds=120
+      FLINK_CACHE_DIR: "/tmp/cache/flink"
+      MVN_BUILD_OUTPUT_FILE: "/tmp/mvn_build_output.out"
+      MVN_VALIDATION_DIR: "/tmp/flink-validation-deployment"
+    steps:
+      - run: echo "Running CI pipeline for JDK version ${{ matrix.jdk }}"
+
+      - name: Check out repository code
+        uses: actions/checkout@v3
+
+      - name: Set JDK
+        uses: actions/setup-java@v3
+        with:
+          java-version: ${{ matrix.jdk }}
+          distribution: 'temurin'
+          cache: 'maven'
+
+      - name: Set Maven 3.8.5
+        uses: stCarolas/setup-maven@v4.5
+        with:
+          maven-version: 3.8.5
+
+      - name: Create cache dirs
+        run: mkdir -p ${{ env.FLINK_CACHE_DIR }}
+
+      - name: Cache Flink binary
+        if: ${{ inputs.cache_flink_binary }}
+        uses: actions/cache@v3
+        id: cache-flink
+        with:
+          path: ${{ env.FLINK_CACHE_DIR }}
+          key: ${{ inputs.flink_url }}
+
+      - name: Download Flink binary
+        working-directory: ${{ env.FLINK_CACHE_DIR }}
+        if: steps.cache-flink.outputs.cache-hit != 'true'
+        run: wget -q -c ${{ inputs.flink_url }} -O - | tar -xz
+
+      - name: Compile and test flink-connector-prometheus
+        timeout-minutes: ${{ inputs.timeout_test }}
+        run: |
+          set -o pipefail
+
+          mvn clean install -Dflink.convergence.phase=install -Pcheck-convergence -U -B ${{ env.MVN_CONNECTION_OPTIONS }} \
+            -DaltDeploymentRepository=validation_repository::default::file:${{ env.MVN_VALIDATION_DIR }} \
+            -Dflink.version=${{ inputs.flink_version }} | tee ${{ env.MVN_BUILD_OUTPUT_FILE }}
+
+      - name: Check licensing
+        run: |
+          mvn ${MVN_COMMON_OPTIONS} exec:java@check-license -N \
+            -Dexec.args="${{ env.MVN_BUILD_OUTPUT_FILE }} $(pwd) $(pwd)" \
+            ${{ env.MVN_CONNECTION_OPTIONS }} \
+            -Dlog4j.configurationFile=file://$(pwd)/tools/ci/log4j.properties
diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
new file mode 100644
index 0000000..3a9c7b3
--- /dev/null
+++ b/.github/workflows/nightly.yml
@@ -0,0 +1,37 @@
+################################################################################
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+# limitations under the License.
+################################################################################
+
+name: "flink-connector-prometheus: nightly build"
+on:
+  schedule:
+    - cron: "0 0 * * *"
+jobs:
+  compile_and_test:
+    if: github.repository_owner == 'apache'
+    strategy:
+      matrix:
+        flink: [1.19-SNAPSHOT, 1.20-SNAPSHOT]
+        java: [ '8, 11, 17']
+    uses: ./.github/workflows/common.yml
+    with:
+      flink_version: ${{ matrix.flink }}
+      jdk_version: ${{ matrix.java }}
+      flink_url: https://s3.amazonaws.com/flink-nightly/flink-${{ matrix.flink }}-bin-scala_2.12.tgz
+      cache_flink_binary: false
+    secrets: inherit
+
diff --git a/.github/workflows/push_pr.yml b/.github/workflows/push_pr.yml
new file mode 100644
index 0000000..2ee9c59
--- /dev/null
+++ b/.github/workflows/push_pr.yml
@@ -0,0 +1,36 @@
+################################################################################
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+# limitations under the License.
+################################################################################
+
+name: "flink-connector-prometheus: build on pull request"
+on: [push, pull_request, workflow_dispatch]
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+jobs:
+  compile_and_test:
+    uses: ./.github/workflows/common.yml
+    strategy:
+      matrix:
+        flink: [1.19.1, 1.20.0]
+        java: [ '8, 11, 17']
+    with:
+      flink_version: ${{ matrix.flink }}
+      jdk_version: ${{ matrix.java }}
+      flink_url: https://archive.apache.org/dist/flink/flink-${{ matrix.flink }}/flink-${{ matrix.flink }}-bin-scala_2.12.tgz
+      cache_flink_binary: true
+    secrets: inherit