构建kafka-eagle docker镜像

from openjdk:8u282-slim

ENV KE_HOME=/opt/kafka-eagle
ENV EAGLE_VERSION=2.0.3

#ADD system-config.properties /tmp

COPY kafka-eagle-web-${EAGLE_VERSION}-bin.tar.gz  /tmp

RUN mkdir -p /opt/kafka-eagle/conf

RUN tar zxvf /tmp/kafka-eagle-web-${EAGLE_VERSION}-bin.tar.gz -C /opt/kafka-eagle --strip-components 1 && \
    chmod +x /opt/kafka-eagle/bin/ke.sh && \
    mkdir -p /hadoop/kafka-eagle/db

EXPOSE 8048 8080

COPY system-config.properties /opt/kafka-eagle/conf/system-config.properties
COPY entrypoint.sh /opt/kafka-eagle/bin/entrypoint.sh

RUN chmod +x /opt/kafka-eagle/bin/entrypoint.sh

WORKDIR /opt/kafka-eagle

CMD ["sh", "/opt/kafka-eagle/bin/entrypoint.sh"]

#!/bin/bash

# 实现通过KAFKA_EAGLE_XX前缀来替代system-config.properties对应配置的功能
echo "" >> "$KE_HOME/conf/system-config.properties"

(
    function updateConfig() {
        key=$1
        value=$2
        file=$3

        # Omit $value here, in case there is sensitive information
        echo "[Configuring] '$key' in '$file'"

        # If config exists in file, replace it. Otherwise, append to file.
        if grep -E -q "^#?$key=" "$file"; then
            sed -r -i "s@^#?$key=.*@$key=$value@g" "$file" #note that no config values may contain an '@' char
        else
            echo "$key=$value" >> "$file"
        fi
    }

    # Fixes #312
    # KAFKA_VERSION + KAFKA_HOME + grep -rohe KAFKA[A-Z0-0_]* /opt/kafka/bin | sort | uniq | tr '\n' '|'
    EXCLUSIONS="|KAFKA_VERSION|KAFKA_HOME|KAFKA_DEBUG|KAFKA_GC_LOG_OPTS|KAFKA_HEAP_OPTS|KAFKA_JMX_OPTS|KAFKA_JVM_PERFORMANCE_OPTS|KAFKA_LOG|KAFKA_OPTS|"

    # Read in env as a new-line separated array. This handles the case of env variables have spaces and/or carriage returns. See #313
    IFS=$'\n'
    for VAR in $(env)
    do
        env_var=$(echo "$VAR" | cut -d= -f1)
        if [[ "$EXCLUSIONS" = *"|$env_var|"* ]]; then
            echo "Excluding $env_var from broker config"
            continue
        fi
		
        if [[ $env_var =~ ^KAFKA_EAGLE ]]; then
            kafka_name=$(echo "$env_var" | cut -d_ -f3- | tr '[:upper:]' '[:lower:]' | tr _ .)
            updateConfig "$kafka_name" "${!env_var}" "$KAFKA_HOME/config/server.properties"
        fi
    done
)

/opt/kafka-eagle/bin/ke.sh start
tail -f /dev/null

version: '3'

networks:
  cluster_default:
    external: true

services:
  kafka-eagle:
    restart: always
    image: repos.jtl3d.com/kafka-eagle:1.0.0
    deploy:
      placement:
        constraints:                      # 添加条件约束
          - node.labels.server==tb
    networks:
      - cluster_default
    ports:
      - "8148:8048"
    environment:
      KAFKA_EAGLE_CLUSTER1_ZK_LIST: zk1:2181,zk2:2181,zk3:2181
      KAFKA_EAGLE_KAFKA_EAGLE_URL: jdbc:mysql://mysql:3306/ke?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull
      KAFKA_EAGLE_KAFKA_EAGLE_USERNAME: root
      KAFKA_EAGLE_KAFKA_EAGLE_PASSWORD: 123456
      TZ: Asia/Shanghai

  mysql:
    image: "mysql:5.7"
    deploy:
        placement:
          constraints:                      # 添加条件约束
           - node.labels.server==tb
    restart: always  
    environment:
         MYSQL_ROOT_PASSWORD: "123456"
         MYSQL_USER: 'root'
         MYSQL_PASS: '123456'

    networks:
        - cluster_default
    ports:
        - "3306:3306"