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frank184/wait_db.rb

Created March 30, 2017 23:19
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Wait for DB
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wait_db.rb
require 'socket'
def try_connection
TCPSocket.new(ENV['DB_HOST'], 3306)
rescue Errno::ECONNREFUSED
false
else
true
end
until try_connection
puts "Waiting for database..."
sleep 1
end
puts "Database is running!"
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