logstash/lib/pluginmanager/unpack.rb
Pier-Hugues Pellerin fdda39964d Add bin/logstash-plugin prepare-offline-pack command
This new command replace the old workflow of `pack`, `unpack` and the `install --local`, and wrap all the logic into one uniform way of installing plugins.
The work is based on the flow developed for installing an x-pack inside Logstash, when you call prepare-offline-pack, the specified plugins and their dependencies will be packaged in a zip.
And this zip can be installed with the same flow as the pack.

Definition:

Source Logstash: Where you run the prepare-offline-pack.
Target Logstash: Where you install the offline package.

PROS:
- If you install a .gem in the source logstash, the .gem and his dependencies will be bundled.
- The install flow doesn't need to have access to the internet.
- Nothing special need to be setup in the target logstash environment.

CONS:
- The is one minor drawback, the plugins need to have their JARS bundled with them for this flow to work, this is currently the case for all the official plugins.
- The source Logstash need to have access to the internet when you install plugins before packaging them.

Usage examples:
bin/logstash-plugin prepare-offline-pack logstash-input-beats
bin/logstash-plugin prepare-offline-pack logstash-filter-jdbc logstash-input-beats
bin/logstash-plugin prepare-offline-pack logstash-filter-*
bin/logstash-plugin prepare-offline-pack logstash-filter-* logstash-input-beats

How to install:
bin/logstash-plugin install file:///tmp/logstash-offline-plugins-XXXX.zip

Fixes #6404
2017-01-03 13:59:49 -05:00

37 lines
1.4 KiB
Ruby

# encoding: utf-8
require_relative "pack_command"
class LogStash::PluginManager::Unpack < LogStash::PluginManager::PackCommand
option "--tgz", :flag, "unpack a packaged tar.gz file", :default => !LogStash::Environment.windows?
option "--zip", :flag, "unpack a packaged zip file", :default => LogStash::Environment.windows?
parameter "file", "the package file name", :attribute_name => :package_file, :required => true
def execute
signal_deprecation_warning_for_pack
puts("Unpacking #{package_file}")
FileUtils.rm_rf(LogStash::Environment::CACHE_PATH)
validate_cache_location
archive_manager.extract(package_file, LogStash::Environment::CACHE_PATH)
puts("Unpacked at #{LogStash::Environment::CACHE_PATH}")
puts("The unpacked plugins can now be installed in local-only mode using bin/logstash-plugin install --local [plugin name]")
end
private
def validate_cache_location
cache_location = LogStash::Environment::CACHE_PATH
if File.exist?(cache_location)
puts("Directory #{cache_location} is going to be overwritten, do you want to continue? (Y/N)")
override = ( "y" == STDIN.gets.strip.downcase ? true : false)
if override
FileUtils.rm_rf(cache_location)
else
puts("Unpack cancelled: file #{cache_location} already exists, please delete or move it")
exit
end
end
end
end