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swarm_init.rb
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swarm_init.rb
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#!/opt/puppetlabs/puppet/bin/ruby
# frozen_string_literal: true
require 'json'
require 'open3'
require 'puppet'
def swarm_init(advertise_addr, autolock, cert_expiry, dispatcher_heartbeat, external_ca, force_new_cluster, listen_addr, max_snapshots, snapshot_interval)
cmd_string = 'docker swarm init'
cmd_string += " --advertise-addr=#{advertise_addr}" unless advertise_addr.nil?
cmd_string += ' --autolock' unless autolock.nil?
cmd_string += ' --cert-expiry' unless cert_expiry.nil?
cmd_string += " --dispatcher-heartbeat=#{dispatcher_heartbeat}" unless dispatcher_heartbeat.nil?
cmd_string += " --external-ca=#{external_ca}" unless external_ca.nil?
cmd_string += ' --force-new-cluster' unless force_new_cluster.nil?
cmd_string += " --listen-addr=#{listen_addr}" unless listen_addr.nil?
cmd_string += " --max-snapshots=#{max_snapshots}" unless max_snapshots.nil?
cmd_string += " --snapshot-interval=#{snapshot_interval}" unless snapshot_interval.nil?
stdout, stderr, status = Open3.capture3(cmd_string)
raise Puppet::Error, "stderr: '#{stderr}'" if status != 0
stdout.strip
end
params = JSON.parse(STDIN.read)
advertise_addr = params['advertise_addr']
autolock = params['autolock']
cert_expiry = params['cert_expiry']
dispatcher_heartbeat = params['dispatcher_heartbeat']
external_ca = params['external_ca']
force_new_cluster = params['force_new_cluster']
listen_addr = params['listen_addr']
max_snapshots = params['max_snapshots']
snapshot_interval = params['snapshot_interval']
begin
result = swarm_init(advertise_addr, autolock, cert_expiry, dispatcher_heartbeat, external_ca, force_new_cluster, listen_addr, max_snapshots, snapshot_interval)
puts result
exit 0
rescue Puppet::Error => e
puts(status: 'failure', error: e.message)
exit 1
end

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