use oracle java 8
install elasticsearch and logstash from apt repository
unzip is pre-installed for every host and container
automacially accept oracle java license
remove sudo
refactor
fix
logging config for ES, kibana set dfault UI
check kibana via wget -N
install elasticsearch and logstash from ELK apt repository
reduce output
refactor: kibana installer
fix: wget gives 403 Forbidden
fix
fix
fix
refactor