Amazon SQS + Amazon EC2 Integrations

Amazon SQS is a service that enables application components to communicate with one another. It allows the components to push and pull messages from a message queue. Amazon SQS manages the queues and messages, and also implements distributed queue functionality.

Amazon EC2 is an elastic compute cloud in Amazon’s Web Services. Amazon EC2 provides resizable compute capacity. The virtual server has operating system (e.g. Windows, Linux), an elastic network interface card, and comes with access to Amazon SQS.

The fplowing are the ways of integration of Amazon SQS and Amazon EC2:

In this section we will discuss about the integration of Amazon SQS and Amazon EC2 using AWS Conspe. The fplowing are the steps invpved in the integration of Amazon SQS and Amazon EC2 using AWS Conspe:

• Select the ‘Amazon SQS’ option under the ‘Services’ section in AWS Conspe. It will load the page containing all the information related to all the queues created by you.
• Click on the ‘Create New Queue’ button. The ‘Create Queue’ window will open up. This window contains information like Name, Description, Visibility etc., of the queue that you are going to create. Enter all the required information and click on the ‘Create new Queue’ button. You will then be redirected to a page where all your queues will be listed in alphabetical order. Your newly created queue will also be listed there along with its name and description as shown in the image below.
• Under the ‘Amazon SQS’ option, select the ‘Queue’ option from the menu bar. It will load all the queues that are created by you. Under this option you can view the details of each queue such as their names, descriptions and visibility settings. You can also add or delete queues using this option. In addition, there is a ‘Browse Message Queues’ option which shows all your queues in hierarchical order. You can easily find out your queue if you want to edit any detail regarding it. This option is shown in the image below.
• Select the ‘Queue’ option under the ‘Amazon SQS’ option in AWS Conspe. It will load all your queues under this option in hierarchical order as shown in the image below. Now you can select the queue that you want to integrate with EC2 instance for receiving messages from it or you can modify or delete a queue by selecting it from this option.
• Select the ‘Queue’ option from the menu bar under the ‘Amazon SQS’ option as shown above. Now select the ‘Select an existing queue’ option from the topbar on top as shown in the image below. It will show you a list of queues that have been created by you. Select one of them and click on the ‘Select’ button as shown in the image below. It will redirect you to another page that shows different options like ‘Basic Information’, ‘Visibility Settings’, ‘Receive Messages’, ‘Send Messages’, ‘Delete Queue’ etc., as shown in the image below. Select any one of them to configure it accordingly as per your requirement.
• The ‘Configuration Details’ page contains basic information about your queue like Queue name, Description, Visibility etc., as shown in the image below. You can change any field value as per your requirement and click on the ‘Save Changes’ button to save those changes.
• The ‘Visibility Settings’ page contains the visibility settings for your queue that include whether your queue is Public or Private, if it is Private what permissions are needed for accessing it, if it is Public whether it is owned or not etc., as shown in the image below. You can make changes for these values as per your requirement and click on the ‘Save Changes’ button to save those changes.
• The ‘Receive Messages’ page allows you to configure how your application receives messages from a queue when it comes online. You can set a maximum number of messages that can be received at a time and when they are received they are automatically sent to your application code over HTTP/HTTPS without having to wait for an HTTP request from your application code to do so. You can also set how much time before an application retries receiving messages after a failure occurs while receiving a message from a queue when it is offline or if there is a communication failure while receiving messages from a queue when it is online etc., as shown in the image below. You can make changes for these values as per your requirement and click on the ‘Save Changes’ button to save those changes.
• The ‘Send Messages’ page allows you to configure how your application sends messages to a queue when it goes offline or if it is offline already how many messages need to be held by them until it comes online again and gets them sent etc., as shown in the image below. You can make changes for these values as per your requirement and click on the ‘Save Changes’ button to save those changes.
• The ‘Delete Queue’ page contains information about deleting a queue if you no longer need it etc., as shown in the image below. You can make changes for these values as per your requirement and click on the ‘Save Changes’ button to save those changes.
• After configuring all of your queues according to your requirements, click on the ‘Confirm Changes’ button at the bottom of this page as shown in the image below. It will confirm all of these settings that you have made for your queues and ask you whether you want to continue or not, as shown in the image below. Click on the ‘Continue’ button to confirm all these changes or on the ‘Cancel Changes’ button to cancel these changes and go back to previous configuration page. If you click on continue, it confirms all these changes that you have made for your queues and takes you back to start page where all your queues are listed as shown in the image below. In addition, there is an option called ‘Stop Receiving Messages Before Next Run’ which tells AWS to stop receiving messages before next run so that none of your applications receive any message further after they are stopped receiving messages according to this setting because they are not running currently etc., as shown in the image below. If you allow AWS to stop receiving messages before next run then click on continue otherwise click on cancel changes button and go back to previous configuration page where all your queues are listed as shown in previous image above or just go back to start page by clicking on start page link which is available on top left corner of every configuration page as shown in previous image above respectively.

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