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Oct 22, 2021 β€’ 10 tweets β€’ 3 min read β€’ Read on X
What is Kubernetes and How it works!

A Short Thread πŸ‘‡πŸ‘‡ Image
Use case ->

You have created an application and want to share it with the world. Image
Docker comes into the picture to package the application. Image
And your application starts getting massive traffic. Image
Time to scale up. Image
When things are out of control. Image
There comes Kubernetes as a savior. Image
How it works! Image
Kubernetes Architecture. Image
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More from @devops_tech

Dec 6
🐧 Linux Networking Commands: 10 Daily-Used Examples (Thread) 🧡 Image
1/ ifconfig (Deprecated: Use ip):
Check & configure network interfaces.

ifconfig eth0 up # Enable interface
ifconfig eth0 down # Disable interface

Use ip instead:
ip addr show eth0
ip link set eth0 up

#LinuxNetworking #SysAdmin
2/ ip (Modern Network Management):
Powerful alternative to ifconfig.

ip a # Show IP addresses
ip route # Display routing table
ip link set eth0 up # Enable interface
Read 13 tweets
Nov 21
Platform Engineer vs. SRE vs. DevOps Engineer!

A Thread 🧡
1/ What’s the difference? πŸ€”
All these roles focus on improving software delivery and reliability but have different goals. Here’s a quick breakdown:
2/ Platform Engineer πŸ‘·
πŸ‘‰ Goal: Make life easier for developers.
β€’ Build tools & platforms (e.g. CI/CD pipelines, Kubernetes)
β€’ Standardize workflows for efficiency
β€’ Create self-service systems so developers can work faster

πŸ› οΈ They focus on improving developer productivity.
Read 9 tweets
Sep 12
AWS service limitations to keep in mind!

A List of critical #AWS services and their limitations πŸ‘‡ Image
1. EC2 – Instance limits by region, instance type restrictions.
2. RDS – Max database storage limits, instance size restrictions.
3. S3 – Max object size is 5TB, bucket policies can limit access.
4. EBS – Volume size max of 64TB, 20,000 IOPS for io1/io2 volumes.
5. IAM – Max 5,000 roles per account, policy size limits.
6. Lambda – Max execution timeout of 15 minutes, memory max 10GB.
7. DynamoDB – Partition throughput limits, item size max of 400KB.
8. CloudFormation – 200 resources limit per stack.
Read 13 tweets
Sep 9
Mastering Ansible command line!

A Thread of 10 key #Ansible commands and concepts all #DevOps and #Linux Administrators should focus on πŸ‘‡πŸ‘‡ Image
1️⃣ Check Ansible Version

Command:
ansible --version

Explanation:
Verify your Ansible installation and check version details.
2️⃣ Ping All Hosts

Command:
ansible all -m ping

Explanation:
Ping all hosts in your inventory to ensure they are reachable.
Read 18 tweets
Sep 5
🧡 Mastering Docker Troubleshooting: 15 Key Tips for Developers and DevOps Engineers!

A Thread πŸ‘‡πŸ‘‡ Image
1/ 🐳 Check Container Status
Use docker ps -a to view all containers and their statuses. A container may have exited unexpectedly.
Look at STATUS and RESTART policies to identify potential issues.
2/ πŸ” Inspect Logs
Run docker logs <container_name> to see the container logs.
This helps troubleshoot crashes, errors, or other issues within the app or service.
Read 18 tweets
Sep 3
🧡 Mastering Dockerfile: A Breakdown of 15 most important Parameters!

A thread πŸ‘‡πŸ‘‡ Image
1️⃣ FROM:
The first instruction in any Dockerfile. It defines the base image for subsequent instructions.

FROM ubuntu:20.04 - Starts with an Ubuntu 20.04 image.
2️⃣ LABEL:
Adds metadata to the image, such as author or version.

LABEL maintainer="you@example.com" - Tags the image with your contact info.
Read 18 tweets

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