elasticsearch on docker vm.max_map_count [65530] is too low

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#show error
[2020-03-27T00:51:26,356][INFO ][o.e.d.DiscoveryModule    ] [master-node1] using discovery type [zen] and host providers [settings]

[2020-03-27T00:51:34,430][INFO ][o.e.n.Node               ] [master-node1] initialized

[2020-03-27T00:51:34,430][INFO ][o.e.n.Node               ] [master-node1] starting ...

[2020-03-27T00:51:36,061][INFO ][o.e.t.TransportService   ] [master-node1] publish_address {172.20.0.2:9300}, bound_addresses {[::]:9300}

[2020-03-27T00:51:36,238][INFO ][o.e.b.BootstrapChecks    ] [master-node1] bound or publishing to a non-loopback address, enforcing bootstrap checks

ERROR: [1] bootstrap checks failed

[1]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]

#fix error
[root@localhost ~]# sysctl -w vm.max_map_count=262144
vm.max_map_count = 262144

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