(maintained by Lakshmi Sarvani Videla, Former Assistant Professor, KLEF and now Computer Science Lecturer, SRR and CVR Government Degree College, Vijayawada
Saturday, 9 November 2024
Monday, 14 October 2024
Unlock DevOps with AWS for Free: Your Gateway to Cloud Innovation
Did you know that you can become a DevOps expert without spending a dime? AWS offers a treasure trove of free tools for aspiring DevOps engineers. Let's dive into the world of cost-free cloud computing and agile development.
AWS provides various services to practice DevOps, automating tasks and managing infrastructure. These tools are ready to use with an AWS account, no upfront fees required.
Free DevOps Projects on AWS
Hands-on experience is crucial. The "Free DevOps x AWS Project: Setting up a Web App + IDE in the Cloud" is an excellent starting point. This one-hour project uses AWS Cloud9 to set up a web app and IDE.
Key points:
- Beginner-friendly
- Uses EC2 instances (free for first year)
- Step-by-step guides available
Remember: Delete all resources after completion to avoid charges.
Free DevOps Courses and Specializations
Structured learning accelerates progress. Two noteworthy courses:
-
Fundamentals of DevOps in AWS course
- 1-hour duration
- Covers DevOps basics
- No prerequisites
- Provides completion certificate
-
- Four-course series
- Covers AWS products, CI/CD, deployment, monitoring
- Hands-on projects included
- Free to audit
Free DevOps Tools and Resources on AWS
AWS Free Tier offers multiple DevOps tools:
- AWS CodePipeline: Automates release pipelines
- AWS CodeBuild: Compiles code, runs tests
- AWS CodeDeploy: Automates deployment
- AWS Lambda: Runs serverless code
- AWS CloudFormation: Sets up AWS resources
Free resources include:
- Build minutes
- Dev environment hours
- Source storage
- Monitoring services
- Version control (AWS CodeCommit)
Practicing DevOps on AWS
Apply your knowledge:
-
Set up CI/CD pipeline
- Use CodePipeline, CodeBuild, CodeDeploy
- Automate application deployment
-
Implement Infrastructure as Code
- Use CloudFormation
- Define infrastructure with code
-
Explore serverless
- Build Lambda functions
- Create event-driven applications
-
Monitor and log
- Set up CloudWatch
- Track application performance
-
Version control
- Use CodeCommit
- Manage source code efficiently
Building a Career in AWS DevOps
Career progression steps:
-
Master basics
- Learn AWS services
- Understand DevOps principles
-
Get hands-on
- Complete AWS Free Tier projects
- Build a portfolio
-
Pursue certification
- Aim for AWS DevOps Engineer cert
- Validate your skills
-
Stay current
- Follow AWS updates
- Adapt to new DevOps practices
-
Contribute open-source
- Engage with DevOps community
- Improve your coding skills
Conclusion
DevOps with AWS offers free learning opportunities. Use the AWS Free Tier, complete projects, and take courses to build skills without cost.
Key takeaways:
- Delete unused resources
- Leverage free offerings
- Practice consistently
The DevOps field evolves rapidly. Stay curious, experiment with new tools, and keep learning. Your zero-cost investment today could lead to a lucrative career tomorrow.
Wednesday, 24 July 2024
Tuesday, 2 July 2024
Tuesday, 28 May 2024
Summary of NoSQL Databases
NoSQL Databases: A Summary
Feature | Key-Value Store | Document Store | Column Family | Graph Database |
---|---|---|---|---|
Data Model | Key-Value Pairs | Documents (JSON-like) | Columns | Nodes & Relationships |
Schema | Schemaless | Flexible Schema | Flexible Schema | Flexible Schema |
Use Cases | Caching, Session Data, Preferences | Content Management, User Profiles | Time Series Data, Sensor Data | Social Networks, Recommendation Systems |
Advantages | - Fast Writes & Reads - Simple Scalability | - Flexible Data Structures - Powerful Queries | - Fast Reads for Specific Columns - Efficient Write Scalability | - Excellent for Connected Data - Visualization & Analysis |
Disadvantages | - Limited Query Capabilities - No Relationships Between Data | - Complex Multi-Operation Transactions | - Complex Queries & Schema Changes | - Not Ideal for High Volume Transactions |
Potential Users | Memcached, Redis, DynamoDB | MongoDB, CouchDB, DocumentDB | Cassandra, HBase | Neo4j, Cosmos DB |
- SQL Support: Some NoSQL databases support SQL-like interfaces.
- ACID Compliance: Most NoSQL databases are not ACID compliant.
Choosing the Right NoSQL Database:
The best NoSQL database for your application depends on your specific needs. Consider factors like data model, query complexity, scalability requirements, and cost.