Docker 容器互联
一、docker 容器连接及测试
1、新建网络
docker network create -d bridge test-net
# 查看已有网络
docker network ls
2、创建连接容器
1、创建两个容器test1、test2
docker run -d --name test1 --network test-net ubuntudocker run -d --name test1 --network test-net ubuntu
2、使用ping命令测试两个容器是否连接（在容器里下载ping）
apt-get update
apt install iputils-ping
可以先建一个容器，然后提交镜像，再启动另一个，这样可以不再每一个容器里下载ping
docker commit my-container new-container:tag
二、docker-compose实现容器互联
version: "3"networks:gvb-network:driver: bridgeipam:config:- subnet: ${SUBNET}services:gvb-redis:image: redis:7.0.8-alpinecontainer_name: gvb-redisvolumes:- ${GVB_DATA_DIRECTORY}/redis/data:/dataports:- ${REDIS_PORT}:6379 # 自定义的是暴露出去的端口, Redis 容器内运行固定为 6379command: redis-server --requirepass ${REDIS_PASSWORD} --appendonly yesnetworks:gvb-network:ipv4_address: ${REDIS_HOST}gvb-mysql:image: mysql:8.0container_name: gvb-mysqlvolumes:- ${GVB_DATA_DIRECTORY}/mysql/data:/var/lib/mysqlenvironment:- MYSQL_ROOT_PASSWORD=${MYSQL_ROOT_PASSWORD} # root 账号的密码- MYSQL_DATABASE=${MYSQL_DATABASE} # 初始化的数据库- MYSQL_USER=${MYSQL_USER}- MYSQL_PASSWORD=${MYSQL_PASSWORD}- TZ=Asia/Shanghaicommand: --max_connections=1000--character-set-server=utf8mb4--collation-server=utf8mb4_general_ciports:- ${MYSQL_PORT}:3306 # 自定义的是暴露出去的端口, MySQL 容器内运行固定为 3306networks:gvb-network:ipv4_address: ${MYSQL_HOST}gvb-elasticsearch:image: elasticsearch:7.12.0container_name: gvb-elasticsearchvolumes:- ${GVB_DATA_DIRECTORY}/elasticsearch/data:/usr/share/elasticsearch/data- ${GVB_DATA_DIRECTORY}/elasticsearch/config/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml- ${GVB_DATA_DIRECTORY}/elasticsearch/plugins:/usr/share/elasticsearch/pluginsenvironment:- discovery.type=single-node- ES_JAVA_OPTS=-Xms128m -Xmx256mports:- ${ELASTICSEARCH_PORT01}:9200 # 自定义的是暴露出去的端口, elasticsearch 容器内运行固定为 9200和9300- ${ELASTICSEARCH_PORT02}:9300networks:gvb-network:ipv4_address: ${ELASTICSEARCH_HOST}command:["/bin/sh","-c","chmod -R 777 /usr/share/elasticsearch/data /usr/share/elasticsearch/config /usr/share/elasticsearch/plugins && /usr/local/bin/docker-entrypoint.sh",]gvb-nginx:image: nginx:latestcontainer_name: gvb-nginxvolumes:- ${GVB_DATA_DIRECTORY}/nginx/conf/nginx.conf:/etc/nginx/nginx.conf- ${GVB_DATA_DIRECTORY}/nginx/logs:/var/log/nginx- ${GVB_DATA_DIRECTORY}/gvb_web:/usr/share/nginx/html # 修改路径为 nginx 默认的 web 根目录- ${GVB_DATA_DIRECTORY}/gvb_server:/usr/share/nginx/server # 修改路径为 nginx 默认的服务器目录ports:- ${NGINX_PORT}:80 # 自定义的是暴露出去的端口, nginx 容器内运行固定为 80networks:gvb-network:ipv4_address: ${NGINX_HOST}gvb-kibana:image: kibana:7.12.0container_name: gvb-kibanaenvironment:- ELASTICSEARCH_HOSTS=http://gvb-elasticsearch:9200ports:- ${KIBANA_PORT}:5601networks:gvb-network:ipv4_address: ${KIBANA_HOST}
