⚡️ Deploying an Application on Kubernetes: A Complete Guide! ⚡️

➡️https://blog.devcloudninjas.com/deploying-an-application-on-kubernetes-a-complete-guide


✔️ 𝐅𝐨𝐥𝐥𝐨𝐰 @devcloudninjas 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devcloudninjas

➡️ Understanding Version Control: A Beginner’s Guide to Git ☁️ and GitHub 📱


🔧 Struggling with Git and GitHub? Want to master version control and boost your DevOps skills? Look no further!

🔥 Don’t miss out! Start mastering Git and GitHub today:
🖥 Read the full article here: https://dev.to/devcloudninjas/understanding-version-control-a-beginners-guide-to-git-and-github-54i9

I’ve just published a comprehensive guide titled: "Understanding Version Control: A Beginner’s Guide to Git and GitHub". Whether you’re a complete beginner or looking to sharpen your version control knowledge, this guide has everything you need:

💡 What’s inside:
- A detailed explanation of version control and why it’s critical in DevOps.
- An easy-to-follow introduction to Git and how it works.
- Step-by-step commands for setting up Git, branching, merging, and much more.
- How to use GitHub for repository hosting, collaboration, and project management.
- Real-world DevOps workflows integrating GitHub with CI/CD pipelines.
- Best practices, common mistakes, and tips for effective version control.

🎯 Whether you're a DevOps engineer, developer, or just passionate about learning how to manage code better, this guide will help you boost productivity and avoid version control nightmares!

✈️ 𝗙𝗼𝗹𝗹𝗼𝘄 @devcloudninjas 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devcloudninjas

❤️‍🔥 Ever imagined what a CI/CD ♾ pipeline might look like? Here's a glimpse:

1️⃣. 𝐏𝐥𝐚𝐧/𝐃𝐞𝐬𝐢𝐠𝐧, where great ideas turn into robust plans.
2️⃣. 𝐃𝐞𝐯𝐞𝐥𝐨𝐩, with every line of code embedded with security.
3️⃣. 𝐁𝐮𝐢𝐥𝐝 𝐚𝐧𝐝 𝐂𝐨𝐝𝐞 𝐚𝐧𝐚𝐥𝐲𝐬𝐢𝐬, maintaining the bar high.
4️⃣. 𝐓𝐞𝐬𝐭, rigorous and automated.
5️⃣. 𝐃𝐞𝐩𝐥𝐨𝐲, delivering continuous freshness.
6️⃣. 𝐌𝐨𝐧𝐢𝐭𝐨𝐫 𝐚𝐧𝐝 𝐀𝐥𝐞𝐫𝐭, with vigilance as the motto.

But the most critical element?
Making security a habit, not just a step.

😎 𝗙𝗼𝗹𝗹𝗼𝘄 @devcloudninjas 𝗳𝗼𝗿 𝗺𝗼𝗿𝗲 𝘀𝘂𝗰𝗵 𝗰𝗼𝗻𝘁𝗲𝗻𝘁 𝗮𝗿𝗼𝘂𝗻𝗱 𝗰𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀!!! // Join for DevOps DOCs: @devcloudninjas

🚨 𝐍𝐚𝐮𝐤𝐫𝐢 𝐭𝐫𝐢𝐜𝐤𝐬 𝐰𝐡𝐢𝐜𝐡 𝐰𝐨𝐫𝐤𝐬 𝐢𝐧 𝟐𝟎𝟐𝟒

💎 𝐓𝐫𝐲 𝐭𝐡𝐞𝐬𝐞 𝐡𝐚𝐜𝐤𝐬 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐢𝐧𝐭𝐞𝐫𝐯𝐢𝐞𝐰 𝐜𝐚𝐥𝐥𝐬

- Replace career gap by freelance in resume
- Create multiple naukri profile based on location
- Upadte job profile everyday in morning
- Add hot keywords related to job in resume
- Everyday apply for max job openings
- Check job desc to get those keywords
- For ex for DE: Pyspark, ADF, Databricks
- Find HR & send DM/ mails personally
- Make job profiles on multiple job portals
- Try all job searching platforms
- Like LinkedIn, referrals, Frnd N/w

Try some of these hacks and very sure you will get better calls than before.

▶️ PS : Easiest way to become lucky is to try more


✈️ 𝗙𝗼𝗹𝗹𝗼𝘄 @devcloudninjas 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devcloudninjas

Mastering Linux 🐧 can truly set you apart in the tech world.


Whether you're a developer, sysadmin, or cloud engineer, Linux knowledge is invaluable.

Here are some other top Linux commands every tech pro should know:

𝟭. 𝗴𝗿𝗲𝗽: Search for patterns in files
𝟮. 𝘀𝗲𝗱: Stream editor for filtering and transforming text
𝟯. 𝗮𝘄𝗸: Pattern scanning and text processing
𝟰. 𝗳𝗶𝗻𝗱: Search for files in a directory hierarchy
𝟱. 𝘁𝗮𝗿: Compress and extract files
𝟲. 𝗽𝘀: Report current processes
𝟳. 𝘁𝗼𝗽: Display system tasks
𝟴. 𝘀𝘀𝗵: Secure shell for remote access
𝟵. 𝗰𝗵𝗺𝗼𝗱: Change file permissions
𝟭𝟬. 𝗰𝗵𝗼𝘄𝗻: Change file ownership
𝟭𝟭. 𝘀𝘆𝘀𝘁𝗲𝗺𝗰𝘁𝗹: Control the systemd system and service manager
𝟭𝟮. 𝗷𝗼𝘂𝗿𝗻𝗮𝗹𝗰𝘁𝗹: Query the systemd journal
𝟭𝟯. 𝗶𝗽𝘁𝗮𝗯𝗹𝗲𝘀: Configure firewall rules
𝟭𝟰. 𝗿𝘀𝘆𝗻𝗰: Remote file copying tool
𝟭𝟱. 𝗰𝗿𝗼𝗻: Schedule tasks to run automatically

▶️ Pro Tip: Combine these commands with pipes (|) and redirections (> or >>) to create powerful one-liners!

Mastering these commands can significantly boost your productivity and make you comfortable with the Linux wizard!

✈️ 𝗙𝗼𝗹𝗹𝗼𝘄 @devcloudninjas 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devcloudninjas

📱 https://youtu.be/w7UV3FPtqys?si=opjHm5nnUIkCiGN5


📱 𝗙𝗼𝗹𝗹𝗼𝘄 @devcloudninjas 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devcloudninjas

📱 https://youtu.be/wY8VFIAz_Og?si=WIV4-eayYI8PO3hG


📱 𝗙𝗼𝗹𝗹𝗼𝘄 @devcloudninjas 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devcloudninjas

⚡️https://roadmap.sh/devops ♾


📱 𝗙𝗼𝗹𝗹𝗼𝘄 @devcloudninjas 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devcloudninjas

⚡️ Before spending hours on YouTube Videos/Courses, just know what you are signing up for.

➡️ 𝗜𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲: Spend 25% of the time dealing with Infrastructure from provisioning to preventing configuration drift and being cloud agnostic.

➡️ 𝗦𝗲𝗰𝘂𝗿𝗶𝘁𝘆: Shift left the security. From removing unwanted binaries to enforcing runtime security.

➡️ 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻: Write 100s of shell scripts or Ansible Playbooks or build a pipeline to automate the workflow.

➡️ 𝗢𝗯𝘀𝗲𝗿𝘃𝗮𝗯𝗶𝗹𝗶𝘁𝘆: Make sure Logging + Profiling + Tracing + Monitoring are in sync.

➡️ 𝗗𝗼𝗰𝘂𝗺𝗲𝗻𝘁𝗮𝘁𝗶𝗼𝗻: Write tons of docs for releases, post-mortems and internal operations.

➡️ 𝗧𝗿𝗼𝘂𝗯𝗹𝗲𝘀𝗵𝗼𝗼𝘁𝗶𝗻𝗴: Do the RCA and spend days cluelessly staring at the screen.


📱 𝐅𝐨𝐥𝐥𝐨𝐰 @devcloudninjas 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devcloudninjas

🚀 Master DevOps: Essential GitHub 📱 Repositories for Every DevOps Engineer 🌐


🔗 Check out the full article here:
🖥 Most Useful DevOps/Cloud GitHub Repositories

Are you looking to boost your DevOps skills? I've curated a list of the Most Useful DevOps/Cloud GitHub Repositories that will help you master the art of DevOps, whether you're just getting started or already have experience.

💡 What's Inside:
- Realtime DevOps projects for hands-on learning
- Comprehensive guides for CI/CD, Kubernetes, AWS, Azure, and more
- Tool-specific insights and installation guides
- Cheatsheets and setup installers to streamline your workflow

Join our community in mastering these tools and techniques to become a pro DevOps Engineer! 💻💡


✈️ 𝗙𝗼𝗹𝗹𝗼𝘄 @devcloudninjas 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devcloudninjas

Most Asked Scenario-Based Linux Interview Questions for DevOps Engineers 🚀

1. Troubleshooting Services:💡
• Scenario: Your application is running on an Apache web server, but the website is not accessible. What steps would you take to identify and resolve the issue?

2. Disk Space Management:💡
• Scenario: You receive an alert that a production server is running low on disk space. How would you identify the files or directories consuming the most space and clean it up safely?

3. Process Monitoring and Optimization:💡
• Scenario: A server is experiencing high CPU usage, and the application performance is degraded. How would you identify the root cause and optimize the processes?

4. User Management and Permissions:💡
• Scenario: A user is unable to access a specific directory even though they belong to the correct group. How would you troubleshoot and resolve this permission issue?

5. Network Connectivity Issues:💡
• Scenario: Your server is unable to reach a specific external IP address. What steps would you take to diagnose and resolve this network connectivity issue?

6. File Recovery:💡
• Scenario: An important configuration file has been accidentally deleted. How would you attempt to recover this file if there are no backups?

7. Automating Tasks with Shell Scripts:💡
• Scenario: You need to automate the deployment of an application. How would you use shell scripting to automate the process, including stopping services, copying files, and restarting services?

8. Log Analysis:💡
• Scenario: An application is intermittently failing. How would you use Linux command-line tools to analyze logs and identify the root cause of these failures?

9. Service Start-Up Failure:💡
• Scenario: A critical service fails to start after a server reboot. How would you diagnose and resolve the startup failure?

10. Kernel Tuning and Optimization:💡
• Scenario: You need to optimize the server’s performance for a high-traffic application. How would you tune kernel parameters to improve system performance?

11. Managing Crontab Entries:💡
• Scenario: A scheduled cron job did not execute as expected. How would you troubleshoot this issue and ensure the job runs correctly in the future?

12. Handling Large File Transfers:💡
• Scenario: You need to transfer a large file securely from one server to another. What methods would you use to ensure the transfer is efficient and secure?

13. Deploying Updates with Zero Downtime:💡
• Scenario: You need to deploy updates to an application without causing downtime. How would you achieve this on a Linux server?

14. Managing System Resources:💡
• Scenario: The server's memory usage is consistently high, affecting application performance. What steps would you take to identify the cause and manage system resources effectively?


✈️ 𝐅𝐨𝐥𝐥𝐨𝐰 @devcloudninjas 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devcloudninjas

🐧 𝐋𝐢𝐧𝐮𝐱 𝐂𝐡𝐞𝐚𝐭𝐬𝐡𝐞𝐞𝐭 𝐅𝐨𝐫 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐬

🤔 𝐅𝐢𝐥𝐞 𝐒𝐲𝐬𝐭𝐞𝐦 𝐎𝐩𝐞𝐫𝐚𝐭𝐢𝐨𝐧𝐬
ls - List directory contents
cd - Change directory
mkdir - Make directories
rm - Remove files or directories

🤔 𝐅𝐢𝐥𝐞 𝐏𝐞𝐫𝐦𝐢𝐬𝐬𝐢𝐨𝐧𝐬
chmod - Change file mode bits
chown - Change file owner and group
chgrp - Change group ownership of files

🤔 𝐏𝐫𝐨𝐜𝐞𝐬𝐬 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭
ps - Report a snapshot of current processes
kill - Send a signal to a process
top - Display Linux processes

🤔 𝐍𝐞𝐭𝐰𝐨𝐫𝐤𝐢𝐧𝐠
ifconfig - Configure network interfaces
ping - Send ICMP ECHO_REQUEST to network hosts
netstat - Display network connections, routing tables, interface statistics

🤔 𝐒𝐲𝐬𝐭𝐞𝐦 𝐈𝐧𝐟𝐨𝐫𝐦𝐚𝐭𝐢𝐨𝐧
uname - Display system information
hostname - Display the system's hostname
df - Display disk space usage

🤔 𝐏𝐚𝐜𝐤𝐚𝐠𝐞 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭
apt - Package manager for Debian-based systems
yum - Package manager for RPM-based systems
dpkg - Package manager for Debian-based systems

🤔 𝐒𝐡𝐞𝐥𝐥 𝐒𝐜𝐫𝐢𝐩𝐭𝐢𝐧𝐠
bash - GNU Bourne-Again SHell
echo - Display a line of text
grep - Search file(s) for lines that match a given pattern

🤔 𝐔𝐬𝐞𝐫 𝐚𝐧𝐝 𝐆𝐫𝐨𝐮𝐩 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭
useradd - Create a new user or update default new user information
userdel - Delete a user account and related files
passwd - Change user password

🤔 𝐅𝐢𝐥𝐞 𝐓𝐫𝐚𝐧𝐬𝐟𝐞𝐫
scp - Securely copy files between hosts
rsync - Remote file synchronization
wget - Retrieve files from the web

🤔 𝐒𝐲𝐬𝐭𝐞𝐦 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬
systemctl - Control the systemd system and service manager
service - Run a System V init script
chkconfig - Tool for enabling and disabling system services


✔️ 𝗙𝗼𝗹𝗹𝗼𝘄 @devcloudninjas 𝗳𝗼𝗿 𝗺𝗼𝗿𝗲 𝘀𝘂𝗰𝗵 𝗰𝗼𝗻𝘁𝗲𝗻𝘁 𝗮𝗿𝗼𝘂𝗻𝗱 𝗰𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀!!! // Join for DevOps DOCs: @devcloudninjas

If you're a DevOps fresher looking to understand Azure Cloud, here's a brief introduction:


1⃣. Understanding DevOps:
- DevOps is a set of practices that combines software development (Dev) and IT operations (Ops) to improve collaboration, automate processes, and enhance software delivery.
- It emphasizes continuous integration, continuous delivery, and infrastructure as code.
- DevOps aims to break down silos between development and operations teams, fostering a culture of collaboration and agility.


2⃣. Key Concepts in DevOps:
➡️Agile Planning and Lean Project Management: Agile methodologies help manage work efficiently, while lean principles minimize waste.
➡️Version Control: Use tools like Git to manage code changes and collaborate effectively.
➡️Continuous Integration (CI): Automate code integration and testing to catch issues early.
➡️Continuous Delivery (CD): Automate deployment to ensure reliable and frequent releases.
➡️Infrastructure as Code (IaC): Define infrastructure using code (e.g., ARM templates in Azure).
➡️Monitoring and Logging: Monitor applications and infrastructure to identify issues promptly.
➡️Validated Learning: Use data and feedback to improve processes continuously.


3⃣. Building a DevOps Culture:
- Cultivating a DevOps culture involves more than just tools. It requires changes in team structures, workflows, and habits.
- Encourage collaboration, transparency, and shared responsibility.
- Focus on learning, adaptability, and continuous improvement.


⚠️ Remember, DevOps is about people, processes, and tools working together to deliver high-quality software efficiently. If you'd like to explore further, check out the Microsoft Azure DevOps tutorial for practical steps! 🚀 [1]

➡️Reference links: [1] [2] [3]


📱 𝗙𝗼𝗹𝗹𝗼𝘄 @devcloudninjas 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devcloudninjas

🌟 Getting Started with CI/CD: A Beginner's Guide to Automating Your First Pipeline 🌟


🖥 Read the full article here: Getting Started with CI/CD: A Beginner's Guide

Are you new to DevOps or CI/CD? Want to learn how to automate your development workflow and deliver faster, higher-quality software? Look no further! In my latest post, I’ve broken down everything you need to know about setting up your first CI/CD pipeline from scratch. 🔧💻

⏩ What You’ll Learn:
- What is CI/CD? – The difference between Continuous Integration, Continuous Delivery, and Continuous Deployment.
- How to Set Up Your First Pipeline – Step-by-step guidance on automating builds, tests, and deployments.
- Best Practices – Learn how to optimize your pipeline for speed and reliability.
- Overcoming Common Challenges – Tips to avoid potential pitfalls along the way.

Whether you’re just getting started with DevOps or looking to refine your skills, this guide has you covered! 🧑‍💻✨

Don’t miss out on this essential guide! 🎯 Let’s automate and deploy like a pro! 💪🚀

✈️ 𝗙𝗼𝗹𝗹𝗼𝘄 @devcloudninjas 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devcloudninjas

▶️ A picture to understand Linux 🐧 File Permissions.


✈️ 𝗙𝗼𝗹𝗹𝗼𝘄 @devcloudninjas 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devcloudninjas

As a DevOps engineer, we don’t deploy to cloud or servers daily, but most of our time is spent on troubleshooting. Here are some important HTTP status codes every DevOps engineer should know when troubleshooting:

🚫 Status code 403 Forbidden:
This usually occurs due to user permission issues, like incorrect IAM role or policy assignments.

🔍 Status code 404 Resource Not Found:
This typically happens when a route or method is unavailable on API Gateway or the backend server.

⚠️ Status code 502 Bad Gateway:
Occurs when a server acting as a gateway or proxy (e.g., Nginx, Apache, AWS API Gateway) receives an invalid or no response from the upstream server it's trying to communicate with.

⛔️ Status code 503 Service Unavailable:
Indicates that the server is temporarily unable to handle the request, often due to overload or maintenance.


✈️ 𝗙𝗼𝗹𝗹𝗼𝘄 @devcloudninjas 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devcloudninjas

🚀 DevOps Project - 29 🚀


🔗 Project Link: HERE

➡️ CI/CD Project: ♾ Deploy a 3-tier Microservice Voting App using ArgoCD and Azure DevOps Pipeline


I’m excited to share new latest project 29: CI/CD Project: Deploy a 3-tier Microservice Voting App using ArgoCD and Azure DevOps Pipeline.

🔧 This project demonstrates:
- Setting up a CI/CD pipeline using Azure DevOps
- Automated deployment with ArgoCD
- Scaling a 3-tier Microservice architecture for a Voting App

If you’re into DevOps, Kubernetes, or CI/CD Pipelines, this is for you! 🔥

Check out the repo, explore the code, and feel free to reach out if you have any questions. Let's discuss and collaborate! 🙌

❤️‍🔥 Share with friends and learning aspirants ❤️‍🔥

📣 Note: Fork this Repository 🧑‍💻 for upcoming future projects, Every week releases new Project.

📱 𝗙𝗼𝗹𝗹𝗼𝘄 @devcloudninjas 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devcloudninjas

🚨 What makes AWS Lambda so fast?


⚡️There are 4 main pillars:

1️⃣- Function Invocation
AWS Lambda supports synchronous and asynchronous invocation.
- In synchronous invocation, the caller directly calls the Lambda function using AWS CLI, SDK, or other services.
- In an asynchronous invocation, the caller doesn’t wait for the function’s response. The request is authorized and an event is placed in an internal SQS queue. Pollers read messages from the queue and send them for processing.

2️⃣ - Assignment Service
The Assignment Service manages the execution environments.
- The service is written in Rust for high performance and is divided into multiple partitions with a leader-follower approach for high availability.
- The state of execution environments is written to an external journal log.

3️⃣ - Firecracker MicroVM
Firecracker is a lightweight virtual machine manager designed for running serverless workloads such as AWS Lambda and AWS Fargate.
- It uses Linux’s Kernel-based virtual machine to create and manage secure, fast-booting microVMs.

4️⃣ - Component Storage
AWS Lambda also has to manage the state consisting of input data and function code.

⚡️To make it efficient, it uses multiple techniques:
- Chunking to store the container images more efficiently.
- Using convergent encryption to secure the shared data. This involves appending additional data to the chunk to compute a more robust hash.
- SnapStart feature to reduce cold start latency by pre-initializing the execution environment


📱 𝗙𝗼𝗹𝗹𝗼𝘄 @devcloudninjas 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devcloudninjas