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Contents
require 'tty-prompt'
module Sonic
# ec2 tag related methods
module Ssh::Ec2Tag
def ec2_instances
return @ec2_instances if @ec2_instances
filters = [{ name: 'tag-value', values: tags_filter }]
@ec2_instances = ec2_resource.instances(filters: filters)
end
# matches any tag value
def ec2_tag_exists?
ec2_instances.count > 0
end
# If no instances found
# Exit immediately with error message
# If all instances found have the same tag name
# Immediately return the first instance id
# If multiple tag values
# Prompt user to select instance tag value of interest
def find_ec2_instance
tag_values = ec2_instances.map{ |i| matched_tag_value(i) }.uniq
case tag_values.size
when 0
UI.error("Unable to find an instance with a one of the tag values: #{@identifier}")
exit 1
when 1
ec2_instances.first.instance_id
else
# prompt
select_instance_type(tag_values).instance_id
end
end
def select_instance_type(tag_values)
UI.say("Found multiple instance types matching the tag filter: #{@identifier}")
prompt = TTY::Prompt.new
tag_value = prompt.select("Select an instance type tag:", tag_values)
# find the first instance with the tag_value
instance = ec2_instances.find do |i|
i.tags.find { |t| t.value == tag_value }
end
end
def matched_tag_value(instance)
tags = instance.tags
tag = tags.find {|t| tags_filter.include?(t.value) }
tag.value
end
def tags_filter
@identifier.split(',') # identifier from CLI could be a comma separated list
end
end
end
Version data entries
18 entries across 18 versions & 1 rubygems