Code360 powered by Coding Ninjas X Naukri.com. Code360 powered by Coding Ninjas X Naukri.com
Table of contents
1.
Introduction
2.
Actions Supported
2.1.
AssociateNode
2.2.
DescribeEvents
2.3.
DescribeNodeAsscociation
2.4.
DescribeServers
2.5.
DisassociateNode
2.6.
ExportServerEngineAttribute
2.7.
ListTagsForResource
2.8.
RestoreServer
2.9.
StartMaintenance
2.10.
TagResource
2.11.
UntagResource
2.12.
UpdateServer
2.13.
UpdateServerEngineAttributes
2.14.
CreateBackup
2.15.
CreateServer
2.16.
DeleteBackup
2.17.
DeleteServer
2.18.
DescribeAccountAttributes
2.19.
DescribeBackups
3.
Common Parameters
4.
Common Errors
5.
Data Types
6.
Frequently Asked Questions
6.1.
What is the response of the service in case of a successful operation?
6.2.
What does a RestoreServer action do?
6.3.
What is an X-Amz-Algorithm?
6.4.
What does an AccessDeniedException error indicate?
7.
Conclusion
Last Updated: Mar 27, 2024

AWS Ops Works

Master Python: Predicting weather forecasts
Speaker
Ashwin Goyal
Product Manager @

Introduction

Opsworks is a complete application management solution for developers and IT administrators interested in operations. It is an Amazon DevOps service that allows you to Mode, Control, and Automate Applications of virtually any scale and complexity. The AWS OpsWorks CM service maintains and maintains configuration management servers. AWS OpsWorks CM may be used to establish and administer AWS OpsWorks for Chef Automate and Puppet Enterprise servers and add and delete nodes for the servers to manage.

AWS OpsWork also provides the ability to reduce mistakes with traditional scripted configurations. OpsWork is built on the Chef tool and works with receipts, on which the scripting languages would be based.

Source: R&DSolutions

Actions Supported

AWS OpsWorks offers a plethora of functions, some of which are listed below:

AssociateNode

It connects a new node to the server. Only servers in a HEALTHY condition can be paired with a node. In the absence of this, an InvalidStateException is thrown. When the server does not exist, a ResourceNotFoundException is thrown. When request parameters are invalid, a ValidationException is thrown. The AssociateNode API call can be used in Auto Scaling setups, AWS CloudFormation templates, or server instance user data.

If the operation is successful, the service responds with an HTTP 200.

DescribeEvents

It describes occurrences for a particular server. The results are sorted chronologically, with the most recent events appearing first. It is a synchronous operation. When the server does not exist, a ResourceNotFoundException is thrown. When request parameters are invalid, a ValidationException is thrown.

If the operation is successful, the service responds with an HTTP 200.

DescribeNodeAsscociation

It returns the present status of a current affiliation or disassociation request. A ResourceNotFoundException is produced when zero recent association or disassociation requests with the provided token are detected, or the server does not exist. When the request's arguments are invalid, a ValidationException is thrown.

If the operation is successful, the service responds with an HTTP 200.

DescribeServers

It displays a list of all configuration management servers associated with your account. Only the stored Amazon DynamoDB results are returned. AWS OpsWorks CM does not query other services. This is a synchronous operation. When the server does not exist, a ResourceNotFoundException is thrown. When request parameters are invalid, a ValidationException is thrown.

If the operation is successful, the service responds with an HTTP 200.

DisassociateNode

This disassociates a node from the AWS OpsWorks CM server and removes the node from the managed nodes of the server. The node key pair is no longer usable for using the configuration manager's API when a node is disassociated.

A node can only be disconnected from a server in the HEALTHY condition. In the absence of this, an InvalidStateException is thrown. When the server does not exist, a ResourceNotFoundException is thrown. When request parameters are invalid, a ValidationException is thrown.

If the operation is successful, the service responds with an HTTP 200.

ExportServerEngineAttribute

A given server engine attribute is exported as a base64-encoded string. You may, for example, export user data which can be used in EC2 to associate nodes with servers. This is a synchronous operation.

When request parameters are invalid, a ValidationException is thrown. When the server does not exist, a ResourceNotFoundException is thrown. When the server is in any of the following states: CREATING, TERMINATED, FAILED, or DELETING, an InvalidStateException is raised.

If the operation is successful, the service responds with an HTTP 200.

ListTagsForResource

It returns a list of tags that have been applied to the AWS OpsWorks for Chef Automate or for Puppet Enterprise servers that have been provided.

If the operation is successful, the service responds with an HTTP 200.

RestoreServer

Restores a backup to a server in the following states: CONNECTION LOST, HEALTHY, RUNNING, UNHEALTHY, or TERMINATED. When running RestoreServer, the server's EC2 instance is removed and replaced with a new EC2 instance. Because RestoreServer keeps the existing server endpoint, configuration management of the server's client devices continues to function normally. This is an asynchronous operation.

When the server is in an invalid state, an InvalidStateException is thrown. When the server does not exist, a ResourceNotFoundException is thrown. When request parameters are invalid, a ValidationException is thrown.

If the operation is successful, the service responds with an HTTP 200.

StartMaintenance

It initiates server maintenance manually. If an earlier maintenance effort fails and the underlying reason for the issue has been remedied, this command can be beneficial. While maintenance is being performed, the server is in the UNDER MAINTENANCE state.

Maintenance may only be initiated on servers that are HEALTHY or UNHEALTHY. In the absence of this, an InvalidStateException is thrown. When the server does not exist, a ResourceNotFoundException is thrown. When request parameters are invalid, a ValidationException is thrown.

If the operation is successful, the service responds with an HTTP 200.

TagResource

It adds tags to AWS OpsWorks for Chef Automate or Puppet Enterprise servers and server backups.

If the operation is successful, the service responds with an HTTP 200 with an empty HTTP body.

UntagResource

It deletes tags from an AWS OpsWorks CM server or backup. If the operation is successful, the service responds with an HTTP 200.

UpdateServer

It updates server settings. This is a synchronous operation. If the operation is successful, the service responds with an HTTP 200.

UpdateServerEngineAttributes

It makes changes to engine-specific attributes on a given server. When this operation is in progress, the server enters the MODIFYING state. Only one update can take place at a time. This is an asynchronous operation.

This operation can only be performed on either HEALTHY or UNHEALTHY. In the absence of this, an InvalidStateException is thrown. When the server does not exist, a ResourceNotFoundException is thrown. When request parameters are invalid, a ValidationException is thrown.

 If the operation is successful, the service responds with an HTTP 200.

CreateBackup

It creates a server application-level backup. The server cannot be changed while in the BACKING UP state, and no additional backups can be made. Backups can be formed for RUNNING, HEALTHY, or UNHEALTHY. servers By default, you can only create 50 manual backups.

On reaching the maximum limit of manual backups, a LimitExceededException is thrown. When the server is not in one of the following states: RUNNING, HEALTHY, or UNHEALTHY, an InvalidStateException is thrown. When the server cannot be found, a ResourceNotFoundException is thrown. When request parameters are invalid, a ValidationException is thrown.

If the operation is successful, the service responds with an HTTP 200.

CreateServer

Creates and launches a new server immediately. When the server is in a HEALTHY state, it is ready to use. You can create a maximum of 10 servers by default. This is an asynchronous operation.

When you have created the maximum number of servers, a LimitExceededException is thrown. When a server with a similar name already exists in the account, a ResourceAlreadyExistsException is thrown. When you specify a backup ID that is invalid or for a backup that does not exist, a ResourceNotFoundException is thrown. When request parameters are invalid, a ValidationException is thrown.

If the operation is successful, the service responds with an HTTP 200.

DeleteBackup

It destroys a backup. Both manual and automated backups can be deleted. This is an asynchronous operation.

When a backup deletion is already in progress, an InvalidStateException is thrown. When the backup does not exist, a ResourceNotFoundException is thrown. When request parameters are invalid, a ValidationException is thrown.

If the operation is successful, the service responds with an HTTP 200.

DeleteServer

It deletes the server as well as the AWS CloudFormation stacks beneath it. The server state is changed to DELETING when you run this command. DescribeServer requests no longer return the server after it has been deleted. The server cannot be deleted if the AWS CloudFormation stack cannot be deleted. This is an asynchronous operation.

When a server deletion is already in progress, an InvalidStateException is thrown. When the server does not exist, a ResourceNotFoundException is thrown. When request parameters are invalid, a ValidationException is thrown.

If the operation is successful, the service responds with an HTTP 200.

DescribeAccountAttributes

It describes the attributes of your AWS OpsWorks CM account. This is a synchronous operation. If the operation is successful, the service responds with an HTTP 200.

DescribeBackups

It explains backups. The backups are listed in chronological order, with the most recent backups appearing first. If no BackupId or ServerName is specified, the command returns all backups. This is a synchronous operation.

When the backup does not exist, a ResourceNotFoundException is thrown. When request parameters are invalid, a ValidationException is thrown.

If the operation is successful, the service responds with an HTTP 200.

 

Source: Artsy

Get the tech career you deserve, faster!
Connect with our expert counsellors to understand how to hack your way to success
User rating 4.7/5
1:1 doubt support
95% placement record
Akash Pal
Senior Software Engineer
326% Hike After Job Bootcamp
Himanshu Gusain
Programmer Analyst
32 LPA After Job Bootcamp
After Job
Bootcamp

Common Parameters

The parameters used by all actions for signing Signature Version 4 requests with a query string are listed below:

1. Action: The action to be taken.

2. Version: The API version for which the request is written is YYYY-MM-DD.

3. X-Amz-Algorithm: The hash algorithm utilized to create the request signature.

4. X-Amz-Credential: The credential scope value is a string that contains your access key, the date, the region you want to target, the service you want, and a termination string.

5. X-Amz-Date: The date on which the signature is created. ISO 8601 basic format (YYYYMMDD'T'HHMMSS'Z') is required.

6. X-Amz-Security-Token: The temporary security token obtained via an AWS Security Token Service call (AWS STS).

7. X-Amz-Signature: Specifies the hex-encoded signature derived from the signing string and the derived signing key.

8. X-Amz-SignedHeaders: Specifies all of the HTTP headers contained in the canonical request.

Common Errors

This section includes some of the errors that are common to all AWS API activities:

1. AccessDeniedException: You do not have adequate permission to carry out this action.

2. IncompleteSignature: The request signature does not adhere to AWS guidelines.

3. InternalFailure: The request was unable to be processed due to an unknown error, exception, or failure.

4. InvalidAction: The proposed action or operation is invalid. Check that the action is properly typed.

5. InvalidParameterValue: The input parameter was given an incorrect or out-of-range value.

Data Types

The AWS OpsWorks CM API contains several data types used by various activities. Some of them are explained below:

1. AccountAttribute: It stores account attributes.

2. Backup: It describes a single backup.

3. EngineAttribute: A name and value pair specific to the server's engine.

4. Server: It describes a configuration management server.

5. ServerEvent: A server-related event, such as the commencement of maintenance or backup.

6. Tag: A map with tag keys and tag values that may be attached to an AWS OpsWorks for Chef Automate or Puppet Enterprise server.

Frequently Asked Questions

What is the response of the service in case of a successful operation?

If the operation is successful, the service responds with an HTTP 200.

What does a RestoreServer action do?

Restores a backup to a server in the following states: CONNECTION LOST, HEALTHY, RUNNING, UNHEALTHY, or TERMINATED.

What is an X-Amz-Algorithm?

It is the hash algorithm utilized in the creation of the request signature.

What does an AccessDeniedException error indicate?

It indicates that we do not have adequate permission to carry out the action.

Conclusion

This article extensively discussed AWS Ops Works, various actions that can be performed by it, and some of the common errors faced in the process.

After reading about the AWS Ops Works, are you not feeling excited to read/explore more articles on the topic of AWS resources? Don't worry, Coding Ninjas has you covered. To learn, see Operating SystemUnix File SystemFile System Routing, and File Input/Output.

Recommended Reading - Canonical Cover In DBMS STS Download

Refer to our Guided Path on Coding Ninjas Studio to upskill yourself in Data Structures and AlgorithmsCompetitive ProgrammingJavaScriptSystem Design, and many more! If you want to test your competency in coding, you may check out the mock test series and participate in the contests hosted on Coding Ninjas Studio! But if you have just started your learning process and are looking for questions asked by tech giants like Amazon, Microsoft, Uber, etc; you must look at the problemsinterview experiences, and interview bundle for placement preparations.

Nevertheless, you may consider our paid courses to give your career an edge over others!

Do upvote our blogs if you find them helpful and engaging!

Happy Learning!

Previous article
Inline Policies Vs Managed Policies
Next article
AWS Proton
Live masterclass