envdir doesn't appear to work as is for all sv-run scripts

[dearing]

Seems like configured values trump environment vars; more testing needed.

[akadoya]

it seems like $ES_HOME/bin/elasticsearch.in.sh is overriding those values

[dearing]

I'm on a bit of a vacation still and will check into things when I get back.

[akadoya]

I could apply all of the settings by passing environment variables to elasticsearch.in.sh.
I think this is the only case for Ubuntu, but for tweaking MAX_OPEN_FILES and MAX_LOCKED_MEMORY, I also had to change the configuration of ulimit, pam_limits(/etc/pam.d/common-session*) and sv-elasticsearch-run.erb to let runit spawn sudo session so that limits.conf configuration will be applied to elasticsearch process.
I couldn't make chpst work along with ulimit tweaks but there could be smarter way.