Class: CloudJobAws::AwsVmHandler

Inherits:
CloudJobBase::VmHandler
  • Object
show all
Defined in:
lib/cloud_job_aws.rb

Instance Method Summary collapse

Instance Method Details

#delete ⇒ Object 



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# File 'lib/cloud_job_aws.rb', line 141

def delete
    begin
        instance = @cloudConnector.ec2resource.instance(@vm.instance_id)
        if (instance.exists? and instance.state.code != 48)
            puts "terminate request sent"
            instance.terminate
            instance.wait_until_terminated
            @status = :ok
        end
    rescue => ex
        puts "terminate request failed"
        @exception = ex
        @status =  :failed
    end
end

#deploy_exe(exe_bucket_key) ⇒ Object 



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# File 'lib/cloud_job_aws.rb', line 77

def deploy_exe(exe_bucket_key)
    puts "In aws deploy_exe"
    begin
        instance = @cloudConnector.ec2resource.instance(@vm.instance_id)
        if (instance.exists?)
            # start VM if it's not in pending/started state
            puts instance.state.code
            case instance.state.code
            when 0 # pending
                instance.wait_until_started
            when 16 # started - do nothing
                puts "VM already started."
            else    
                puts "start request sent"
                instance.start
                instance.wait_until_started
            end
            
            # deploy exe
            @copied_exe_name = :copied_exe_name
            Net::SSH.start(instance.public_dns_name, "ec2-user", key_data: [ @cloudConnector.key_pair.key_material ], verbose: :info) do |ssh|
                result = ssh.exec!("wget #{exe_bucket_key}")
                puts result
                result = ssh.exec!("wget https:#{exe_bucket_key}")
                puts result
                result = ssh.exec!("wget -O #{@copied_exe_name} http:#{exe_bucket_key}")
                puts result
                result = ssh.exec!("ls -l")
                puts result
            end
            
            @status = :ok
        else
            raise "VM doesn't exist."
        end
    rescue => ex
        puts "run exe request failed"
        @exception = ex
        @status = :failed
    end
end

#provision ⇒ Object 



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# File 'lib/cloud_job_aws.rb', line 53

def provision
    begin
        allowed_types = ["t2.micro", "t1.micro"]
        raise ArgumentError, "AWS VM type not supported." if !(allowed_types.include?(@vm.series))
        
        # free tier AMI for Ireland Microsoft Windows Server 2008 R2 Base - ami-a7ed50de
        # free tier AMI for Amazon Linux AMI 2017.09.1 (HVM), SSD Volume Type - ami-1a962263
        @vm.image == "" ? image = "ami-1a962263" : image = @vm.image
        
        instance = @cloudConnector.ec2resource.create_instances({ instance_type: @vm.series, image_id: image,  min_count: 1, max_count: 1, key_name: @cloudConnector.key_pair.key_name, security_group_ids: [@cloudConnector.security_group.id]})
        
        @cloudConnector.ec2client.wait_until(:instance_status_ok, {instance_ids: [instance[0].id]})
        @vm.instance_id = instance[0].id
        
        # set the observable's field
        @status = :ok
    rescue => ex # aws exceptions are subclasses of StandardError, thus must be caught by this rescue
        puts "provision request failed"
        # observer's fields:
        @exception = ex
        @status = :failed
    end
end

#run_exe(exe_bucket_key) ⇒ Object 



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# File 'lib/cloud_job_aws.rb', line 119

def run_exe(exe_bucket_key)
    puts "In aws run_exe"
    begin
        instance = @cloudConnector.ec2resource.instance(@vm.instance_id)
        if (instance.exists?)
            # run exe
            Net::SSH.start(instance.public_dns_name, "ec2-user", key_data: [ @cloudConnector.key_pair.key_material ], verbose: :info) do |ssh|
                result = ssh.exec!("#{@copied_exe_name}")
                puts result
            end

            @status = :ok
        else
            raise "VM doesn't exist."
        end
    rescue => ex
        puts "run exe request failed"
        @exception = ex
        @status = :failed
    end
end