🚨 CFP for #DevOpsDaysIstanbul2026 closes on June 30! — don't miss your chance to speak. 🎤 🛠️ Whether you're scaling platforms in production, improving developer experience, automating infrastructure, or experimenting with new ideas in your home lab, we want to hear your story. Got a lesson learned, a failure worth sharing, or a solution you're proud of? The stage is yours. 📝 Submit your proposal: talks.devopsdays.org/devopda… 🗓️ Join us on 24 October 2026 #DevOps #DevOpsDays #CFP #DevOpsCommunity

What is the Difference Between Self-Managed vs Public SSL/TLS Certificates? 🚀 DevOps Engineers often work with TLS certificates, and understanding the difference between self-managed and paid certificates is very important. So lets understand the basics. 𝗪𝗵𝗮𝘁 𝗶𝘀 𝗮 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗲 𝗔𝘂𝘁𝗵𝗼𝗿𝗶𝘁𝘆? Certificate Authority (CA) is usually a company or organization that issues digital certificates. Here's how to request a TLS certificate from a well-known Certificate Authority (CA) like Verisign, LetsEncrypt or Comodo: - Create a Certificate Signing Request (CSR) with a private key. The CSR includes details about your location, organization, and FQDN (Fully Qualified Domain Name). - Send the CSR to the trusted CA. - The CA validates the request and sends back a TLS certificate signed using the CA’s private key. - Validate and use this TLS certificate with your applications. Most browsers and operating systems 𝘀𝘁𝗼𝗿𝗲 𝗿𝗼𝗼𝘁 𝗖𝗔 𝗰𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗲𝘀 from all the trusted CAs. You can view them from the browser settings. That is why browsers don’t show security messages when visiting websites using TLS from a trusted and well-known commercial CA. Each browser has its own set of criteria and processes for accepting and trusting CAs. 𝗦𝗼, 𝘄𝗵𝗼 𝗱𝗲𝗰𝗶𝗱𝗲𝘀 𝗶𝗳 𝗮 𝗖𝗔 𝗰𝗮𝗻 𝗯𝗲 𝘁𝗿𝘂𝘀𝘁𝗲𝗱? Well, they are vetted by independent audit organizations like webtrust. The results of these audits are important for a CA to be trusted by web browsers and operating systems. Now let’s look at self-managed certificates. For internal applications, organizations often run their own private CA (PKI infrastructure). The workflow looks like this: - Create your own Root CA certificate and CA private key - Generate a server private key and CSR - Use the CA private key to sign the CSR and generate the TLS certificate - Install the Root CA certificate in browsers or operating systems to avoid HTTPS warnings Without installing the Root CA certificate, browsers will show security warnings because the CA is not publicly trusted. For public endpoints, organizations always use certificates from well-known CAs (LetsEncrypt or paid ones) We share deep dives on Kubernetes, DevOps,MLOps, Cloud and GitOps → 𝗝𝗼𝗶𝗻 𝗛𝗲𝗿𝗲 (𝟭𝟬𝟬% 𝗳𝗿𝗲𝗲): newsletter.devopscube.com/ ♻️ PS: Repost and share it with the DevOps community. Got any tips? ⬇️ Discuss in the comments below! ⬇️ #devops #devopscommunity

Muchos quieren aprender DevOps y Kubernetes… pero todo empieza en Linux. 🐧🔥 La terminal sigue siendo el mejor laboratorio para crecer en tecnología. Introducción a Linux training.linuxfoundation.org… Build with fire, deploy with power. 🚀 #Linux #DevOps #Kubernetes #CloudComputing #Docker #OpenSource #PlatformEngineering #SRE #TechTwitter #DevOpsCommunity #BuildWithFire #RoxsOps 🔥

🚨 CFP is still open for #DevOpsDaysIstanbul2026! Got a story, lesson, or real-world experience to share? Now’s your chance to take the stage. Join us in Istanbul and be part of the conversation. 🚀 Submit your proposal: talks.devopsdays.org/devopda… 🗓️ 24 October 2026 #DevOps #DevOpsDays #CFP #DevOpsCommunity

India’s leading DevOps minds are coming together in Mumbai. The world of #softwaredelivery is rapidly transforming and #DevOpsleaders must evolve with it. #EveryOpsDay Mumbai brings together India’s most forward-thinking minds across #DevOps, #DevSecOps, #PlatformEngineering, and #AI #MLOps for a highly curated day of insight, dialogue, and collaboration. Join senior technology leaders to explore: ⚡ The future of AI-driven DevSecOps 🔐 Securing the modern #softwaresupplychain 🚀 Building high-velocity developer platforms 🤝 Connecting with India’s top DevOps and engineering leaders This is India’s premium DevOps event, designed for leaders who are building the next generation of software. 📍 Mumbai | May 15, 2026 👉 Sign up today as seats are limited : bit.ly/4sR76HP #DevOpsLeaders #DevOpsCommunity #EveryOpsDayMumbai #Techeventinmumbai #Securityleaders #DevOpsEventinIndia

Join @nzicecool at Cloud Native Melbourne to see OpenChoreo deploy a production-ready internal developer platform fast, open source, and built for the AI era. Live demo included. Secure your spot here: ow.ly/KQMW50YwGlv #DevOpsCommunity #CloudNative #AIEraTech

A must-know topic for DevOps interviews💡 Many engineers follow blogs and manage to get things done without understanding what each linux system folder represents. Understanding the organization and hierarchy of directories in Linux is crucial for DevOps engineers while working with Linux Systems. Each linux folder is like a special place where certain types of files are kept. Here's a simple explanation for each, using real-world examples: - /𝗯𝗶𝗻: This is like a toolbox where your basic tools (commands) are kept, such as the ones you use to copy or move files around. - /𝗯𝗼𝗼𝘁: Think of it as a car's ignition system where all the necessary files are stored to start (boot) the computer system. - /𝗱𝗲𝘃: This folder is like a parking garage for devices. It contains files that represent devices like your keyboard, mouse, or USB drives. - /𝗲𝘁𝗰: This is the filing cabinet for configuration files, where settings for programs and the system are stored. - /𝗵𝗼𝗺𝗲: Like a neighborhood where everyone has their own house, this is where users have their personal folders to store their files. - /𝗹𝗶𝗯: Consider this a library where the system's shared resources and codes (libraries) are stored that programs need to run. - /𝗺𝗲𝗱𝗶𝗮: This is the shelf where you put removable media, like when you plug in a CD or a USB stick and it shows up. - /𝗺𝗻𝘁: Think of it as a temporary guest room for storage devices, where you mount them temporarily to access their content. - /𝗼𝗽𝘁:- It's like a storage room for extra software that doesn't come with the standard installation. - /𝗽𝗿𝗼𝗰: This is the information center of the system, displaying real-time system information, almost like a live dashboard. - /𝗿𝗼𝗼𝘁: It’s the private home directory for the 'root' user, like a secure office for the system administrator. - /𝘀𝗯𝗶𝗻: This is like a secure toolbox for the system admin's tools (commands) that are used for system maintenance. - /𝘀𝗿𝘃: It's the service room where data for services provided by the system, like web pages, are stored. - /𝘀𝘆𝘀: This directory acts as a window into the system's kernel and helps manage and understand the hardware connected to the system. - /𝘁𝗺𝗽: Consider this a scratch pad or a temporary workspace where files are stored temporarily. - /𝘂𝘀𝗿: This is like a public library for additional user programs and files that are used by everyone. - /𝘃𝗮𝗿: This is the office where variable data such as logs, databases, emails, etc., that change frequently, are stored. ---- We share tips like these and deep dives in my DevOps newsletter. Read by 18,000 DevOps engineers worldwide. 👉 𝗝𝗼𝗶𝗻 𝗵𝗲𝗿𝗲 (𝗳𝗿𝗲𝗲): newsletter.devopscube.com/ #devops #devopsengineer #devopsinterview #devopscommunity

Thank you very much for this great space and meet ups to new and exciting people on the just concluded #DevOpsCommunity, Thanks a million to @lloydtheophilus and other great #Engineers that gives advice.

Join us tomorrow! We’re talking The Future of DevOps: DevOps in the Age of AI Real insights. Real engineers. Real conversations. Don’t miss it! 🗓 Tomorrow, Jan 23 ⏰ 7:30 PM WAT 📍 X Spaces #DevOps #AI #FutureOfDevOps #DevOpsCommunity #CloudEngineering #TechTalk #DevOpsDoj

Porque cuando la comunidad empuja, los sueños se vuelven realidad. 🔥 DevOpsDays llega a Buenos Aires 📍 Abril 2026 · Presencial Y sí… no llegamos solos Les presento a CapiOps,nuestra mascota y símbolo de avanzar juntos. 🌐 devopsdaysba.com Build with Fire. Deploy with Power. 🔥 Vamos por más. Roxs #DevOpsDaysBuenosAires #DevOpsCommunity #BuenosAires #CapiOps #Roxs

Linux Tip for DevOps Engineers 🚀 How to get the Public IP of the server using a command? You can use curl and the publicly available services to get the public address, as shown in the image. For AWS and GCP, always use the respective metadata service to retrieve the public IP Note: Please do not use publicly available services in actual project/production code. Always consult your security team for options. PS: ♻️ Repost if you find this useful. It helps the DevOps community Have any thoughts to add? Drop them in the comments below. ----- Want to Stay Ahead in DevOps & Cloud? 📢 Join Free Newsletter → Join Here (Its free): bit.ly/dcube-nl Get the latest tips, guides, and industry news delivered straight to your inbox. #linux #devops #devopscommunity

Linux Tip for DevOps Engineers 🚀 How to get the Public IP of the server using a command? You can use curl and the publicly available services to get the public address, as shown in the image. For AWS and GCP, Always use the respective metadata service to retrieve the public IP PS: ♻️ Repost if you find this useful. It helps the DevOps community 🙂 𝗡𝗼𝘁𝗲: Please do not use publicly available services in actual project/production code. Always consult your security team for options. Want more tips like these? Join 17,500 DevOps engineers who receive our newsletter filled with valuable tips and guides! Signup for free: newsletter.devopscube.com/ #linux #devops #devopscommunity

Season’s greetings from all of us at Bravo Digitals 🎄✨ Wishing you peace, joy, growth, and big wins in the year ahead. #MerryChristmas #HappyNewYear #BravoDigitals #SeasonGreetings #TechCommunity #CloudLife #DevOpsCommunity

DevOps, SRE, and platform engineering pros — this is for you 👇 🔔 Ship It Weekly by Teller’s Tech brings the top news and insights each week. Check it out 📡👉 rss.com/podcasts/ship-it-wee… #SRE #DevOpsCommunity

Kubernetes design interview question 🚀 Is it possible for etcd to have a split-brain scenario? What is 𝘀𝗽𝗹𝗶𝘁-𝗯𝗿𝗮𝗶𝗻 𝘀𝗰𝗲𝗻𝗮𝗿𝗶𝗼? Split brain scenarios occur when a group of nodes in a distributed system loses communication with each other primarily due to network partitioning, resulting in inconsistent or conflicting system states. etcd is designed to avoid split-brain scenarios, as it relies on a leader election mechanism to ensure that only one node is active and in control of the cluster at any given time. The official documentation says, there is no “split-brain” in etcd. Here is why. ✅ A network partition divides the etcd cluster into two parts; one with a member majority and the other with a member minority. ✅ The majority side becomes the available cluster and the minority side is unavailable ✅ If the leader is on the majority side, then from the majority point of view the failure is a minority follower failure. ✅ If the leader is on the minority side, then it is a leader failure. ✅ The leader on the minority side steps down and the majority side elects a new leader. ✅ Once the network partition clears, the minority side automatically recognizes the leader from the majority side and recovers its state. So how does the leader know weather its in the majority or minority? etcd nodes regularly send "heartbeats" to each other. If the leader is in the minority part of the split, it will not receive acknowledgments from the majority of the nodes. When the leader doesn't get enough responses to its heartbeats, it realizes that it might be in the minority. To maintain the integrity of the system, it steps down from its leadership role. On the other side of the partition, where the majority of nodes are, they also notice they're not getting heartbeats from the leader. Since they are the majority, they can elect a new leader among themselves. PS: ♻️ Repost if you find this useful. It helps the DevOps community 🙂 Have you faced split brain scenario before? ⬇️ Discuss in the comments below! ⬇️ #devops #kubernetes #devopscommunity

One thing I personally stopped doing as a DevOps engineer: I stopped fixing production issues alone. Earlier, my mindset was: “I’ll just fix it quickly.” “I know where the issue is.” “It’s faster if I do it myself.” It worked. But it created problems. What went wrong: • Knowledge stayed with me • Others didn’t learn the system • I became a bottleneck • On-call pressure increased • The same issues came back What I do now: • I fix issues in a shared channel • I explain what I’m checking and why • I involve the service owner • I document the final fix • I make sure at least one more person understands it The goal is not to be the hero. The goal is to build a team that can handle issues together. DevOps is not about individual speed. It’s about team reliability. If you like simple, real DevOps habits like this, follow DevOps Community for more. #devops #engineeringculture #sre #reliability #teamwork #devopscommunity

Terraform is everywhere in DevOps—but why? I wrote a short blog breaking down: ->Why Terraform wins among IaC tools ->Where it struggles ->How to install & start quickly Would love feedback from the community 👇 monkeys.com.co/blog/terrafor… #Terraform #DevOps #InfrastructureAsCode #CloudNative #AWS #Azure #GCP #DevOpsCommunity #TechTwitter #monkeys_com_co @monkeys_com_co

Most DevOps interviews today don’t ask “What is DevOps?” They ask REAL scenarios from real production issues. Here are some of the toughest, most practical DevOps interview questions in 2025: 1️⃣ “A deployment succeeded, but latency went up. How do you debug it?” What they look for: • Check recent code/config change • Compare golden signals (latency, traffic, errors, saturation) • Roll back if user impact is rising • Check DB, cache, and downstream dependencies 2️⃣ “Your Kubernetes pods are Ready but still not receiving traffic. Why?” Expected thought process: • Service selector mismatch • NetworkPolicy blocking • Readiness probe not testing real dependency • Wrong port or containerPort mismatch • No endpoints show up 3️⃣ “Your Terraform plan shows a destroy of a critical resource. What do you do?” Good answer: • Stop the apply • Inspect state drift • Check module changes • Fix lifecycle or wrong variable change • Work in a sandbox first 4️⃣ “A pipeline works locally but fails in CI. How do you approach it?” They want: • Compare environments • Check secrets, env vars, runners • Permissions issues • Cached layers or dependency mismatches 5️⃣ “Your app works inside the container but fails outside. What’s your next step?” Expected: • Validate exposed ports • Test health endpoints • File paths, permissions, user mismatch • Docker networking (bridge, host, DNS) 6️⃣ “A node is healthy, but pods keep getting evicted.” They expect: • Node pressure (memory, disk, inodes) • Pod resource requests too high • PDB or taints/tolerations issue • Local ephemeral storage full 7️⃣ “Your cloud bill doubled overnight. Where do you check first?” Strong answers: • Identify top resources by cost • Check autoscaling events • Unused LB, EC2, snapshots • Misconfigured logging or data transfer • Tagging gap = no ownership Real interviews want your **thought process**, not tool names. If you want more real-time DevOps scenarios like this, follow DevOps Community for daily practical content. #devops #interviewquestions #sre #platformengineering #cloudcomputing #kubernetes #terraform #cicd #devopscommunity #TechCareers

Dar una charla completa en inglés en #AWSreInvent fue un desafío enorme… Pero lo difícil también se conquista. Paso a paso, práctica, ayuda y mucho fuego. 🔥💥 Hoy confirmé que sí se puede. @awscloud #RoxsOnFire #DevOpsCommunity

This year has been turbulent, transformative and unforgettable. AI reshaped workflows, regulations tightened, hybrid work evolved and teams kept delivering through it all. In the spirit of the season, @ashimmy reflects on what he is thankful for in DevOps — as a founder, community member and eternal optimist. What made the list: • The AI evolution hitting DevOps and how the community embraced it • Security finally gaining real influence • Hybrid and remote culture maturing with resilience • Platform engineering and IDPs finding their moment • A DevOps community that remains strong, inclusive and unafraid to adapt And what did not make the list: • The ongoing talent crunch and burnout • Tool sprawl that slows teams down • Compliance theater that distracts from real security Shimmy’s Take: Grateful beats grumpy. The future of DevOps is full of promise, powered by community, smarter platforms and human creativity guided by AI. Read Alan’s full Thanksgiving reflection and join the conversation: 👉 buff.ly/wet60ic #DevOps #DevSecOps #PlatformEngineering #AI #Culture #DevOpsCommunity #ShimmySays