chef/cookbooks/monasca/templates/default/elasticsearch-systemd-override.conf.erb
[Service]
LimitNPROC=<%= @elasticsearch_limit_nproc %>
LimitNOFILE=<%= @elasticsearch_limit_nofile %>
LimitMEMLOCK=<%= @elasticsearch_limit_memlock %>
Environment="ES_HEAP_SIZE=<%= @elasticsearch_heap_size %>"