Class: Armada::Connection::HealthCheck

Inherits:
Remote
  • Object
show all
Defined in:
lib/armada/connection/health_check.rb

Instance Attribute Summary collapse

Attributes inherited from Remote

#gateway, #host, #port

Instance Method Summary collapse

Methods inherited from Remote

#initialize_gateway!

Constructor Details

#initialize(host, port, endpoint = nil, delay = nil, retries = nil, gateway_host = nil, gateway_user = nil) ⇒ HealthCheck

Returns a new instance of HealthCheck.



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# File 'lib/armada/connection/health_check.rb', line 6

def initialize(host, port, endpoint = nil, delay = nil, retries = nil, gateway_host = nil, gateway_user = nil)
  super(host, port, gateway_host, gateway_user)
  @endpoint = endpoint ||= '/'
  @delay    = delay    ||= 1
  @retries  = retries  ||= 60
end

Instance Attribute Details

#endpoint ⇒ Object (readonly)

Returns the value of attribute endpoint.



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# File 'lib/armada/connection/health_check.rb', line 5

def endpoint
  @endpoint
end

Instance Method Details

#healthy? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/armada/connection/health_check.rb', line 32

def healthy?
  response = begin
    Excon.get("http://#{health_check_host}:#{health_check_port}#{@endpoint}")
  rescue Exception => e
    return false
  end

  return false unless response
  return true if response.status >= 200 && response.status < 300

  warn "Got HTTP status: #{response.status}"
  false
end

#run ⇒ Object 



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# File 'lib/armada/connection/health_check.rb', line 17

def run
  info "Performing health check at - :#{@port}#{@endpoint}. Will retry every #{@delay} second(s) for #{@retries} times."
  1.upto(@retries) do |i|
    initialize_gateway!
    unless healthy?
      info "Still waiting for health check to pass at - :#{@port}#{@endpoint} endpoint..." if i % (@retries/10) == 0
      sleep(@delay)
    else
      info "Health check succeeded!"
      return true
    end
  end
  return false
end

#to_s ⇒ Object 



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# File 'lib/armada/connection/health_check.rb', line 13

def to_s
  "#{@host}:#{@port}#{@endpoint}"
end