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×°ÖÃDocker£ºDockerÊÇÒ»¸ö¿ªÔ´µÄÈÝÆ÷»¯Æ½Ì¨£¬¿ÉÒÔ×ÊÖúÎÒÃÇ¿ìËÙ°²ÅźÍÖÎÀí΢ЧÀÍ¡£ÔÚLinuxÉÏ×°ÖÃDockerºÜÊǼòÆÓ£¬¿ÉÒÔͨ¹ý¹Ù·½Îĵµ¾ÙÐÐ×°Öá£

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±àдDockerfile£ºÀýÈ磬ÎÒÃǼÙÉèÎÒÃÇÓÐÒ»¸öÃûΪ”userservice”µÄ΢ЧÀÍ£¬×ðÁú¿­Ê±DockerfileÈçÏÂËùʾ£º

# »ùÓÚJavaµÄ¾µÏñ
FROM openjdk:8-jdk-alpine

# ÉèÖÃÊÂÇéĿ¼
WORKDIR /app

# ½«Ó¦ÓóÌÐò¸´ÖƵ½¾µÏñ
COPY target/userservice.jar .

# ½ç˵ÈÝÆ÷̻¶µÄ¶Ë¿Ú
EXPOSE 8080

# ÉèÖÃÇéÐαäÁ¿
ENV JAVA_OPTS=""

# Æô¶¯Ó¦ÓóÌÐò
ENTRYPOINT exec java $JAVA_OPTS -jar userservice.jar

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docker build -t userservice .

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docker swarm init

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version: '3'
services:
  userservice:
    image: userservice
    deploy:
      replicas: 3
      restart_policy:
        condition: on-failure

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docker stack deploy -c docker-compose.yaml myservice

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docker service scale myservice_userservice=5

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Õ⽫½«userserviceЧÀ͵ĸ±±¾ÊýÀ©Õ¹µ½5¸ö¡£

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ʹÓÃÒÔÏÂÏÂÁîÆô¶¯PrometheusºÍGrafanaÈÝÆ÷£º

docker run -d -p 9090:9090 --name prometheus prom/prometheus
docker run -d -p 3000:3000 --name grafana grafana/grafana

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