[build] Introduce flink-quickstart docker file

docker/quickstart-flink/Dockerfile

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+#
+# 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.
+#
+
+# Use Flink 1.20.0 as base image
+FROM flink:1.20.0-scala_2.12-java17
+
+# Switch to root user for installation and setup
+USER root
+
+# Install necessary packages
+RUN apt-get update && \
+    apt-get install -y tree && \
+    rm -rf /var/lib/apt/lists/*
+
+# Copy sql-client script to the container
+COPY bin/* /opt/sql-client/
+
+# Set working directory and environment
+WORKDIR /opt/sql-client
+ENV SQL_CLIENT_HOME=/opt/sql-client
+
+# Copy Fluss connector JARs and SQL files
+# Copy JARs to both sql-client lib and Flink lib directories
+COPY lib/* /opt/sql-client/lib/
+COPY sql/* /opt/sql-client/sql/
+COPY lib/* /opt/flink/lib/
+COPY opt/* /opt/flink/opt/
+
+# Modify docker-entrypoint.sh to allow Flink to run as root user
+# This is needed for the quickstart environment
+RUN sed -i 's/exec $(drop_privs_cmd)/exec/g' /docker-entrypoint.sh
+
+# Make sql-client script executable
+RUN ["chmod", "+x", "/opt/sql-client/sql-client"]

docker/quickstart-flink/README.md

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+# Fluss Quickstart Flink Docker
+
+This directory contains the Docker setup for Fluss Quickstart with Flink integration.
+
+## Overview
+
+The Fluss Quickstart Flink Docker image provides a complete environment for running Flink with Fluss, powered by Paimon lake storage.
+
+## Prerequisites
+
+Before building the Docker image, ensure you have:
+
+1. Check out the code version that you want to use for the Docker image. Go to the project root directory and build Fluss using `./mvnw clean package -DskipTests`.
+The local build will be used for the Docker image.
+2. Docker installed and running
+3. Internet access for retrieving dependencies
+
+## Build Process
+
+The build process consists of two main steps:
+
+### Step 1: Prepare Build Files
+
+First, you need to prepare the required JAR files and dependencies:
+
+```bash
+# Make the script executable
+chmod +x prepare_build.sh
+
+# Run the preparation script
+./prepare_build.sh
+```
+
+### Step 2: Build Docker Image
+
+After the preparation is complete, build the Docker image:
+
+```bash
+# Build the Docker image
+docker build -t fluss/quickstart-flink:1.20-latest .
+```

docker/quickstart-flink/bin/sql-client

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+#!/bin/bash
+
+#
+# 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.
+#
+
+${FLINK_HOME}/bin/sql-client.sh  -i ${SQL_CLIENT_HOME}/sql/sql-client.sql

docker/quickstart-flink/prepare_build.sh

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+#!/bin/bash
+
+# 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.
+
+set -e
+
+# Configuration
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+PROJECT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
+
+# Logging functions
+log_info() {
+    echo "ℹ️  $1"
+}
+
+log_success() {
+    echo "✅ $1"
+}
+
+log_error() {
+    echo "❌ $1" >&2
+}
+
+# Utility function to copy JAR files with version numbers
+copy_jar() {
+    local src_pattern="$1"
+    local dest_dir="$2"
+    local description="$3"
+
+    log_info "Copying $description..."
+
+    # Find matching files
+    local matches=($src_pattern)
+    local count=${#matches[@]}
+
+    # No files matched
+    if (( count == 0 )); then
+        log_error "No matching JAR files found: $src_pattern"
+        log_error "Please build the Fluss project first: mvn clean package"
+        return 1
+    fi
+
+    # Multiple files matched
+    if (( count > 1 )); then
+        log_error "Multiple matching JAR files found:"
+        printf "    %s\n" "${matches[@]}"
+        return 1
+    fi
+
+    # Exactly one file matched → copy it with original file name
+    mkdir -p "$dest_dir"
+    cp "${matches[0]}" "$dest_dir/"
+    log_success "Copied: $(basename "${matches[0]}")"
+}
+
+# Utility function to download and verify JAR
+download_jar() {
+    local url="$1"
+    local dest_file="$2"
+    local expected_hash="$3"
+    local description="$4"
+
+    log_info "Downloading $description..."
+
+    # Download the file
+    if ! wget -O "$dest_file" "$url"; then
+        log_error "Failed to download $description from $url"
+        return 1
+    fi
+
+    # Verify file size
+    if [ ! -s "$dest_file" ]; then
+        log_error "Downloaded file is empty: $dest_file"
+        return 1
+    fi
+
+    # Verify checksum if provided
+    if [ -n "$expected_hash" ]; then
+        local actual_hash=$(shasum "$dest_file" | awk '{print $1}')
+        if [ "$expected_hash" != "$actual_hash" ]; then
+            log_error "Checksum mismatch for $description"
+            log_error "Expected: $expected_hash"
+            log_error "Actual:   $actual_hash"
+            return 1
+        fi
+        log_success "Checksum verified for $description"
+    else
+        log_success "Downloaded $description"
+    fi
+}
+
+# Check if required directories exist
+check_prerequisites() {
+    log_info "Checking prerequisites..."
+
+    local required_dirs=(
+        "$PROJECT_ROOT/fluss-flink/fluss-flink-1.20/target"
+        "$PROJECT_ROOT/fluss-lake/fluss-lake-paimon/target"
+        "$PROJECT_ROOT/fluss-flink/fluss-flink-tiering/target"
+    )
+
+    for dir in "${required_dirs[@]}"; do
+        if [ ! -d "$dir" ]; then
+            log_error "Required directory not found: $dir"
+            log_error "Please build the Fluss project first: mvn clean package"
+            exit 1
+        fi
+    done
+
+    log_success "All prerequisites met"
+}
+
+# Main execution
+main() {
+    log_info "Preparing JAR files for Fluss Quickstart Flink Docker..."
+    log_info "Project root: $PROJECT_ROOT"
+
+    # Check prerequisites
+    check_prerequisites
+
+    # Clean and create directories
+    log_info "Setting up directories..."
+    rm -rf lib opt
+    mkdir -p lib opt
+
+    # Copy Fluss connector JARs
+    log_info "Copying Fluss connector JARs..."
+    copy_jar "$PROJECT_ROOT/fluss-flink/fluss-flink-1.20/target/fluss-flink-1.20-*.jar" "./lib" "fluss-flink-1.20 connector"
+    copy_jar "$PROJECT_ROOT/fluss-lake/fluss-lake-paimon/target/fluss-lake-paimon-*.jar" "./lib" "fluss-lake-paimon connector"
+
+    # Download external dependencies
+    log_info "Downloading external dependencies..."
+
+    # Download flink-faker for data generation
+    download_jar \
+        "https://github.com/knaufk/flink-faker/releases/download/v0.5.3/flink-faker-0.5.3.jar" \
+        "./lib/flink-faker-0.5.3.jar" \
+        "" \
+        "flink-faker-0.5.3"
+
+    # Download flink-shaded-hadoop-2-uber for Hadoop integration
+    download_jar \
+        "https://repo1.maven.org/maven2/io/trino/hadoop/hadoop-apache/3.3.5-2/hadoop-apache-3.3.5-2.jar" \
+        "./lib/hadoop-apache-3.3.5-2.jar" \
+        "508255883b984483a45ca48d5af6365d4f013bb8" \
+        "hadoop-apache-3.3.5-2.jar"
+
+    # Download paimon-flink connector
+    download_jar \
+        "https://repo1.maven.org/maven2/org/apache/paimon/paimon-flink-1.20/1.2.0/paimon-flink-1.20-1.2.0.jar" \
+        "./lib/paimon-flink-1.20-1.2.0.jar" \
+        "b9f8762c6e575f6786f1d156a18d51682ffc975c" \
+        "paimon-flink-1.20-1.2.0"
+
+    # Prepare lake tiering JAR
+    log_info "Preparing lake tiering JAR..."
+    copy_jar "$PROJECT_ROOT/fluss-flink/fluss-flink-tiering/target/fluss-flink-tiering-*.jar" "./opt" "fluss-flink-tiering"
+
+    # Final verification
+    verify_jars
+
+    # Show summary
+    show_summary
+}
+
+# Verify that all required JAR files are present
+verify_jars() {
+    log_info "Verifying all required JAR files are present..."
+
+    local missing_jars=()
+    local lib_jars=(
+        "fluss-flink-1.20-*.jar"
+        "fluss-lake-paimon-*.jar"
+        "flink-faker-0.5.3.jar"
+        "hadoop-apache-3.3.5-2.jar"
+        "paimon-flink-1.20-1.2.0.jar"
+    )
+
+    local opt_jars=(
+        "fluss-flink-tiering-*.jar"
+    )
+
+    # Check lib directory
+    for jar_pattern in "${lib_jars[@]}"; do
+        if ! ls ./lib/$jar_pattern >/dev/null 2>&1; then
+            missing_jars+=("lib/$jar_pattern")
+        fi
+    done
+
+    # Check opt directory
+    for jar_pattern in "${opt_jars[@]}"; do
+        if ! ls ./opt/$jar_pattern >/dev/null 2>&1; then
+            missing_jars+=("opt/$jar_pattern")
+        fi
+    done
+
+    # Report results
+    if [ ${#missing_jars[@]} -eq 0 ]; then
+        log_success "All required JAR files are present!"
+    else
+        log_error "Missing required JAR files:"
+        for jar in "${missing_jars[@]}"; do
+            log_error "  - $jar"
+        done
+        exit 1
+    fi
+}
+
+# Summary function
+show_summary() {
+    log_success "JAR files preparation completed!"
+    echo ""
+    log_info "📦 Generated JAR files:"
+    echo "Lib directory:"
+    ls -la ./lib/ 2>/dev/null || echo "  (empty)"
+    echo "Opt directory:"
+    ls -la ./opt/ 2>/dev/null || echo "  (empty)"
+}
+
+# Run main function
+main "$@"