Removes the installation of sys-v init.d scripts from .deb and .rpms.
All supported operating systems use systemd as the init system, as such, it is no longer necessary to continue to ship Sys-v Init.d scripts.
This PR contains commits attempting to fix the broken acceptance tests:
* Fix the set of test platforms used to run unix acceptance tests
Modernizes the list of OS's used in acceptance tests, to the most modern OS's available at https://app.vagrantup.com/elastic,. This removes the centos-6 platform from the build, which is past end-of-life and fails vagrant bootstrapping, causing the build to fail.
This is more of band-aid than anything - in the longer term, we should remove these vagrant based tests completely, and rely
on the build infrastructure to perform OS-based acceptance tests.
* Fix regexes for plugin list tests. …
Fixes tests to support the plugin alias feature. This introduced a new format for
entries emitted by `bin/logstash-plugin list`:
eg
```
└── logstash-input-elastic_agent (alias)
```
This commit fixes the test to account for this change, and whitespace variances.
* make sure downloaded logstashes use the new (arch independant files name)
* add specific privileged bootstrap script for debian 8 that is able to install java8 for this distro
* wrap the bootstrap scripts within the platform class, like this logic is in one specific place to select platform specific components
* add platform specific bootstrap file for sles-12 and also scripts to download latest logstash rpm version
* add custom bootstrap script for ubuntu-1404 to be sure it loads all ca certificates into the system
* make the necessary changes to compile with the new package system
* correct logstash path usage
* remove unnecessary dependancy to rake inside the acceptance test framework
* fix script execution under ubuntu environments, making sure it runs on bash
Fixes#5350
Some other minor changes include:
* add back the user level boostrap scripts, useful in that case to pull latest released LS
* cleanup formatting for specs and fixed bootstrap scripts for redhats
* make the latest logstash version available from the current platform config file
* make sure debian based machines use java8
* make sure to use hostname and not just ip:port address when reporting the names
Fixes#5350
