Does the 7.0.0 module manage the default elasticsearch.service? We were using instances prior to 7.0.0 of the module. The reason I ask, when setting init_defaults, elasticsearch fails as the same mem lock settings aren't being set on the elasticsearch.service. This was something that worked prior to 7.0.0.
init_defaults
MAX_LOCKED_MEMORY: 'unlimited'
MAX_OPEN_FILES: '1048576'