mynote/elasticsearch/elasticsearch.md
2021-12-22 17:10:35 +08:00

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# elasticsearch
## install
- [docker](https://registry.hub.docker.com/_/elasticsearch)
```bash
docker pull elasticsearch:tag
docker network create somenetwork
docker run -d --name es --net somenetwork -p 9200:9200 -p 9300:9300 -e "discovery.type=single-node" elasticsearch:tag
docker run -d --name es -p 9200:9200 -p 9300:9300 -e ES_JAVA_OPTS="-Xms512m -Xmx512m" -e "discovery.type=single-node" elasticsearch:7.14.2
# 修改配置
docker exec -it es bash
vi config/elasticsearch.yml
http.cors.enabled: true
http.cors.allow-origin: "*"
network.publish_host: 127.0.0.1
# 可视化
docker run -p 9800:9800 -d --link es:demo --name eshd containerize/elastichd
#docker run -p 1358:1358 -d appbaseio/dejavu
#docker pull mobz/elasticsearch-head:5
#docker run -d -p 9100:9100 mobz/elasticsearch-head:5
```
## goang sdk
```go
// https://github.com/elastic/go-elasticsearch
import (
github.com/elastic/go-elasticsearch/v7
)
es, err := elasticsearch.NewClient(elasticsearch.Config{})
// create document
req := esapi.IndexRequest{
Index: "sample_edge",
Body: bytes.NewReader(body),
}
res, err := req.Do(context.Background(), es)
if err != nil {
return
}
defer res.Body.Close()
```