do not print "Starting Instana instrumentation" when INSTANA_DISABLED=true

[breunigs]

Problem Description

This line

ruby-sensor/lib/instana/base.rb

Line 42 in 374e0de

::Instana.logger.info "Stan is on the scene. Starting Instana instrumentation version #{::Instana::VERSION}"

is logged even if Instana is intentionally disabled. It would be much appreciated if this could also honor INSTANA_DISABLED like done elsewhere and adjust the wording slightly to remove any confusion as to whether Instana instrumentation is on or off.

ruby-sensor/lib/instana.rb

Line 16 in 374e0de

unless ENV.fetch('INSTANA_DISABLE', false)

Minimal, Complete, Verifiable, Example

export INSTANA_DISABLED=true
cd some-ruby-app
bundle exec rails s

Gemfile.lock

# instana=1.209.0.pre1

Ruby Version

not relevant

[hmadison]

Hi @breunigs

I've opened #269 to resolve this and should have out later today.

Thanks,
Hunter