使用Docker安装ElasticSearch 以及我遇到的问题

使用Docker安装ElasticSearch 以及我遇到的问题

1. 第一步先准备好需要挂载到docker里面的目录和文件
   例如：

   mkdir -p /usr/local/esdata/config
   mkdir -p /usr/local/esdata/data
   mkdir -p /usr/local/esdata/plugins
   
   vi /usr/local/esdata/config/elasticsearch.yml
   
   #文本输入如下
   http.host: 0.0.0.0
   

2.第二步下载并启动es容器

docker run 
--name elasticsearch 
-p 9200:9200 
-p 9300:9300 -e "discovery.type=single-node" 
-e ES_JAVA_OPTS="-Xms64m -Xmx128m" 
-v /usr/local/esdata/config/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml 
-v /usr/local/esdata/data:/usr/share/es/data 
-v /usr/local/esdata/plugins:/usr/share/elasticsearch/plugins 
-d elasticsearch:7.7.0

直接docker run Docker会自动pull

记录一下我安装时遇到的问题：

Error response from daemon: OCI runtime create failed: container_linux.go:349: starting container process caused "process_linux.go:449: container init caused "rootfs_linux.go:58: mounting \"/usr/local/mydata/config/elasticsearch.yml\" to rootfs \"/var/lib/docker/overlay2/c4fc8e876eb44269911cd4ddb18c9039df0bd26c93a6d26642a8a6c2b17510c5/merged\" at \"/var/lib/docker/overlay2/c4fc8e876eb44269911cd4ddb18c9039df0bd26c93a6d26642a8a6c2b17510c5/merged/usr/share/elasticsearch/config/elasticsearch.yml\" caused \"not a directory\""": unknown: Are you trying to mount a directory onto a file (or vice-versa)? Check if the specified host path exists and is the expected type
Error: failed to start containers: elasticsearch

这句报错的重点是这一句：
mount a directory onto a file (or vice-versa)? Check if the specified host path exists and is the expected type
意思是说挂载的 elasticsearch.yml 是一个目录而不是文件，粗心将路径写错了，修改了之后成功启动es容器

值得一提的是kibana和es版本要一致否则就会kibana连接就会失败