elasticsearch - Set vm.max_map_count on cluster nodes

Question

I try to install ElasticSearch (latest) on a cluster nodes on Google Container Engine but ElasticSearch needs the variable : vm.max_map_count to be >= 262144.

If I ssh to every nodes and I manually run :

sysctl -w vm.max_map_count=262144

All goes fine then, but any new node will not have the specified configuration.

So my questions is :

Is there a way to load a system configuration on every nodes at boot time ? Deamon Set would not be the good solution because inside a docker container, the system variables are read-only.

I'm using a fresh created cluster with the gci node image.

Answer 1

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