docker安装并运行elasticsearch

　　拉取镜像：

[mall@VM_0_7_centos ~]$ sudo docker pull elasticsearch:6.4.
[sudo] password for mall:
6.4.: Pulling from library/elasticsearch
256b176beaff: Pull complete
6cb472d8b34a: Downloading [=================================================> ]  .5MB/.4MB
6cb472d8b34a: Pull complete
3a4f4d86c1c1: Pull complete
d185a64a7692: Pull complete
bc4d63245d6d: Pull complete
c8e97292a30a: Pull complete
c1c1a056e791: Pull complete
69b6c77c3236: Pull complete
Digest: sha256:96345f6d73c0d615ddf8b9683848d625f211efacfe3b5b8765debbd1eebc5663
Status: Downloaded newer image for elasticsearch:6.4.
docker.io/library/elasticsearch:6.4.

　　修改vm.max_map_count参数：

[mall@VM_0_7_centos ~]$ sudo sysctl -w vm.max_map_count=
[sudo] password for mall:
vm.max_map_count = 

　　启动容器elasticsearch：

[mall@VM_0_7_centos ~]$ sudo docker run -p : -p : --name elasticsearch \
>   -e "discovery.type=single-node" \
>   -e "cluster.name=elasticsearch" \
>   -v /mydata/elasticsearch/plugins:/usr/share/elasticsearch/plugins \
>   -v /mydata/elasticsearch/data:/usr/share/elasticsearch/data \
>   -d elasticsearch:6.4.
606c0c45aa2693a23bf1a7de7be518b3022c5f107d2c7083f2590cba1589b9d9

　　进入容器报错，提示启动失败：

[mall@VM_0_7_centos ~]$ sudo docker exec -it elasticsearch /bin/bash
Error response from daemon: Container 606c0c45aa2693a23bf1a7de7be518b3022c5f107d2c7083f2590cba1589b9d9 is not running

　　修改数据文件权限，重启：

[mall@VM_0_7_centos ~]$ sudo chmod + /mydata/elasticsearch/data
 
[mall@VM_0_7_centos ~]$ sudo docker stop elasticsearch
elasticsearch
[mall@VM_0_7_centos ~]$ sudo docker start elasticsearch
elasticsearch

　　测试一下：

[mall@VM_0_7_centos ~]$ curl -XGET 'localhost:9200'
{
  "name" : "4FZrgc-",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "6JP7jV8wQhqiVCg680hP-w",
  "version" : {
    "number" : "6.4.0",
    "build_flavor" : "default",
    "build_type" : "tar",
    "build_hash" : "595516e",
    "build_date" : "2018-08-17T23:18:47.308994Z",
    "build_snapshot" : false,
    "lucene_version" : "7.4.0",
    "minimum_wire_compatibility_version" : "5.6.0",
    "minimum_index_compatibility_version" : "5.0.0"
  },
  "tagline" : "You Know, for Search"
}