docker安装ES
1.下载镜像文件
docker pull elasticsearch:7.4.2 #存储和检索数据
docker pull kibana:7.4.2 #可视化检索数据
2.创建配置文件
mkdir -p /mydata/elasticsearch/config
mkdir -p /mydata/elasticsearch/data
3.创建实例
echo"http.host:0.0.0.0" >> /mydata/elasticsearch/config/elasticsearch/yml
docker run --name elasticsearch -d -e ES_JAVA_OPTS="-Xms512m -Xmx512m" -e "discovery.type=single-node" -v /mydata/myelasticsearch/plugins:/usr/share/elasticsearch/plugins \
-v /mydata/myelasticsearch/config/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml \
-v /mydata/myelasticsearch/data:/usr/share/elasticsearch/data \
-p 9200:9200 -p 9300:9300 elasticsearch:7.4.2
一、初步索引
1、_cat
GET/_cat/nodes: 查看所有节点
GET/_cat/health:查看es健康状况
GET/_cat/master:查看主节点
GET/_cat/indices:查看所有索引 show database;
2、索引一个文档(保存)
保存一个数据，保存在哪个索引的哪个类型下，指定用哪个唯一标识 PUT custormer/external/1; 在custormer类型下保存1号数据为 PUT custormer/external/1
