2G2核服务器安装ES

# 安装路径
DIR="/opt/docker/demo"
DOCKER_NAME="docker-elasticsearch"# 创建目录结构
mkdir -p "$DIR/elasticsearch/logs"
mkdir -p "$DIR/elasticsearch/data"
mkdir -p "$DIR/elasticsearch/config"
mkdir -p "$DIR/elasticsearch/plugins"# 赋予文件权限（建议使用更安全的权限）
chmod -R 755 $DIR/elasticsearch/
chown -R 1000:1000 $DIR/elasticsearch/

docker run -d \--restart=always \--name elasticsearch \--network host \-p 9388:9200 \-p 9389:9300 \--privileged \-e "discovery.type=single-node" \-e "ES_JAVA_OPTS=-Xms2g -Xmx2g" \docker.elastic.co/elasticsearch/elasticsearch:6.8.23

docker cp elasticsearch:/usr/share/elasticsearch/data $DIR/elasticsearch/
docker cp elasticsearch:/usr/share/elasticsearch/plugins $DIR/elasticsearch/
docker cp elasticsearch:/usr/share/elasticsearch/config $DIR/elasticsearch/
docker cp elasticsearch:/usr/share/elasticsearch/logs $DIR/elasticsearch/

docker stop elasticsearch
docker rm elasticsearch

# 使用适合 2GB 服务器的内存配置
docker run -d \--restart=always \--name "$DOCKER_NAME" \--network host \-v "$DIR/elasticsearch/data:/usr/share/elasticsearch/data" \-v "$DIR/elasticsearch/plugins:/usr/share/elasticsearch/plugins" \-v "$DIR/elasticsearch/config:/usr/share/elasticsearch/config" \-v "$DIR/elasticsearch/logs:/usr/share/elasticsearch/logs" \-e "discovery.type=single-node" \-e "ES_JAVA_OPTS=-Xms512m -Xmx512m" \-e "xpack.security.enabled=false" \docker.elastic.co/elasticsearch/elasticsearch:6.8.23

修改配置文件 $DIR/elasticsearch/config/elasticsearch.yml

cluster.name: "docker-cluster"network.host: 0.0.0.0http.port: 9200

docker run -d \--restart=always \--name "$DOCKER_NAME" \--network host \-v "$DIR/elasticsearch/data:/usr/share/elasticsearch/data" \-v "$DIR/elasticsearch/plugins:/usr/share/elasticsearch/plugins" \-v "$DIR/elasticsearch/config:/usr/share/elasticsearch/config" \-v "$DIR/elasticsearch/logs:/usr/share/elasticsearch/logs" \-e "discovery.type=single-node" \-e "ES_JAVA_OPTS=-Xms512m -Xmx512m" \-e "ELASTIC_PASSWORD=123456" \docker.elastic.co/elasticsearch/elasticsearch:6.8.23

使用以下命令查看 Elasticsearch 容器的日志：

docker logs -f "$DOCKER_NAME"

docker ps -a

在浏览器中访问以下地址，检查 Elasticsearch 是否正常运行
默认的用户名为：elastic
密码：123456

http://localhost:9200