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37 lines
1.3 KiB
Ruby
Executable file
37 lines
1.3 KiB
Ruby
Executable file
#!/usr/bin/env ruby
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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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require 'socket'
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if ARGV.length < 2
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puts 'is_slave execute a command when it determine that server is slave'
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puts "Usage: #{$PROGRAM_NAME} [VIP|FILE] COMMAND"
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puts ' VIP - IP address expected to be master'
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puts ' FILE - File expected to be master'
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puts ' COMMAND - Command to execute if host is slave'
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exit 2
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end
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expected = ARGV[0]
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command = ARGV[1..-1].join(' ')
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if !Socket.ip_address_list.map(&:ip_address).include?(expected) && !File.exist?(expected)
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Kernel.exec(command)
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else
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puts 'OK - I am master, i going to sleep'
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end
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