Top Tweets for #90daysofdevops
๐ Day 47 of #90DaysOfDevOps
Today I focused on Terraform & IAC and strengthened my understanding of AWS infrastructure automation.
Learned and practiced:
๐น State management
๐น Providers & resources
๐น Variables & modules
Github: https://t.co/aT6weVioCO
Such a great message last night from @tonybesto6 was looking for a DevOps internship 4 years ago, stumbled upon the #90DaysOfDevOps repository/project and now is a team leader of a DevOps team having been through DevOps Intern > DevOps Engineer > SRE > Cloud Engineer!
Proud moment, my son is learning to program with Golang. The downside he is using my #90DaysOfDevOps chapter to do it!!!
โSorry Worldโ
๐
Day 71 of #90DaysOfDevOps ๐
Today I took my Ansible skills to the next level by learning how to structure, reuse, and secure automation. I worked with Jinja2 Templates for dynamic configs, built a custom Webserver Role, explored Ansible Galaxy community roles, encrypted secrets with Ansible Vault, and finally combined Roles + Templates + Vault into a complete automation workflow. ๐ฅ
The biggest takeaway: good DevOps automation isnโt just about making things work โ itโs about making them reusable, scalable, maintainable, and secure. ๐ปโ๏ธ๐
https://t.co/ZOsrMrgncM
#90DaysOfDevOps #DevOps #Ansible #AnsibleAutomation #ConfigurationManagement #Automation #Jinja2 #AnsibleRoles #AnsibleGalaxy #AnsibleVault #InfrastructureAsCode #IaC #CloudComputing #AWS #AWSCloud #Linux #Nginx #Docker #Git #GitHub #CICD #DevOpsEngineer #CloudEngineer #SRE #SysAdmin #PlatformEngineering #LearningInPublic #DevOpsJourney #TechLearning #Developer #DevOpsKaJosh #TrainWithShubham
Happy Learning!
@TrainWitShubham
๐ Day 67 of #90DaysOfDevOps โ Terraform Capstone! ๐๏ธ
Today I brought everything together by building a multi-environment AWS infrastructure using Terraform Workspaces + Custom Modules. One codebase, three environments โ Dev, Staging & Prod! ๐ฅ
I practiced reusable VPC, Security Group & EC2 modules, workspace-aware configurations, environment-specific .tfvars, Terraform best practices, deployment verification, and clean infrastructure destruction.
The biggest takeaway: Write infrastructure once, reuse it everywhere, and keep environments isolated. ๐ก
One step closer to becoming a Cloud/DevOps Engineer! โ๏ธ๐
https://t.co/25BdI6x1lW
#90DaysOfDevOps #Day67 #Terraform #TerraformAWS #AWS #DevOps #CloudComputing #InfrastructureAsCode #IaC #TerraformModules #TerraformWorkspaces #AWSCloud #CloudEngineer #DevOpsEngineer #DevOpsJourney #LearningDevOps #DevOpsCommunity #AWSDevOps #CloudInfrastructure #Automation #InfrastructureAutomation #TerraformTips #HashiCorpTerraform #GitHub #Linux #Kubernetes #Docker #SRE #TechLearning #CareerGrowth #CloudJourney #DevOpsSkills #TerraWeek #DevOpsKaJosh #TrainWithShubham
Happy Learning!
@TrainWitShubham
๐ Day 65 of #90DaysOfDevOps โ Terraform Modules!
Today I moved from one huge https://t.co/N0oiSQqEIG to reusable, modular infrastructure. Built custom EC2 & Security Group modules, used dynamic blocks, passed variables between modules, reused the same EC2 module for Web & API servers, and explored public Registry modules + version pinning. ๐ปโ๏ธ
Big takeaway: Terraform Modules are like functions in programming โ Write once, call many times. โป๏ธ
Learning how to build scalable, maintainable, and reusable Infrastructure as Code, one day at a time! ๐ฅ
https://t.co/TwIrxyMsL3
#Terraform #TerraformModules #DevOps #90DaysOfDevOps #AWS #Cloud #CloudComputing #InfrastructureAsCode #IaC #HashiCorp #TerraformAWS #AWSCloud #EC2 #SecurityGroups #VPC #CloudEngineer #DevOpsEngineer #DevOpsLearning #LearnDevOps #DevOpsJourney #CloudEngineering #Automation #CloudAutomation #GitHub #Linux #SRE #PlatformEngineering #TechLearning #CodingJourney #InfrastructureAutomation #TerraformRegistry #DynamicBlocks #OpenToWork #TerraWeek #DevOpsKaJosh #TrainWithShubham
Happy Learning!
@TrainWitShubham
๐ Day 70 - #90DaysOfDevOps
Today I published a blog on Introduction to CI/CD
๐น Whatโs inside?
โ
CI/CD fundamentals
โ
Continuous Integration
โ
Continuous Delivery & Deployment
โ
CI/CD pipeline flow
โ
Introduction to Jenkins
โ
Why Jenkins is used for CI/CD
Operation book review!
6am starts to get this done before the working day is catching up with me.
Reading past me content is hard work!
#90DaysOfDevOps
๐ Day 64 of #90DaysOfDevOps โ Terraform State Management & Remote Backends!
Today I went deeper into one of Terraformโs most critical concepts: State Management. I learned how Terraform tracks infrastructure, migrated local state to an S3 remote backend, explored state locking with DynamoDB, imported existing AWS resources, practiced terraform state mv & terraform state rm, and simulated + fixed infrastructure drift. ๐ฅ
The biggest takeaway: Good state management = safer infrastructure. ๐ก๏ธ
One step closer to becoming a Cloud/DevOps Engineer! โ๏ธ๐ป
https://t.co/kEbNCztI4i
#Terraform #TerraformAWS #TerraformState #RemoteBackend #S3 #AWS #DynamoDB #InfrastructureAsCode #IaC #DevOps #CloudComputing #CloudEngineer #DevOpsEngineer #AWSCloud #TerraformLearning #90DaysOfDevOps #DevOpsJourney #LearningDevOps #AWSDevOps #CloudInfrastructure #InfrastructureAutomation #StateManagement #TerraformImport #TerraformDrift #StateLocking #CloudAutomation #DevOpsCommunity #TechLearning #DeveloperJourney #LearnTerraform #HashiCorp #AWSCommunity #DevOpsLife #CloudJourney #TechTwitter #TerraWeek #DevOpsKaJosh #TrainWithShubham
Happy Learning!
@TrainWitShubham
๐ Day 61 of #90DaysOfDevOps โ Introduction to Terraform & AWS Infrastructure โ๏ธ
Today I officially started my Infrastructure as Code (IaC) journey with Terraform! Instead of manually creating cloud resources, I learned how to define infrastructure using code and let Terraform handle the provisioning.
โ
Learned the fundamentals of IaC and why it's essential in DevOps
โ
Compared Terraform with CloudFormation, Ansible, and Pulumi
โ
Installed and configured Terraform & AWS CLI
โ
Created my first AWS S3 Bucket using Terraform
โ
Launched an EC2 instance with a simple .tf file
โ
Explored the Terraform lifecycle: init โ plan โ apply โ destroy
โ
Understood how terraform.tfstate tracks infrastructure
โ
Learned the importance of state files and why they shouldn't be edited manually or committed to Git
โ
Modified infrastructure safely using terraform plan
โ
Cleaned up all AWS resources using terraform destroy
It's amazing to see cloud infrastructure being created and managed with just a few lines of code. This is a huge step toward becoming a Cloud & DevOps Engineer! ๐
https://t.co/uZGUhAikGG
#Terraform #InfrastructureAsCode #IaC #AWS #AmazonWebServices #CloudComputing #DevOps #90DaysOfDevOps #CloudEngineer #DevOpsEngineer #S3 #EC2 #AWSCLI #HashiCorp #TerraformBeginner #Automation #CloudAutomation #Linux #Git #GitHub #CloudNative #LearningInPublic #TechJourney #ContinuousLearning #PlatformEngineering #Developer #OpenSource #Kubernetes #Docker #CI #CD #TechCommunity #Programming #SoftwareEngineering #CloudInfrastructure #BuildInPublic #InfrastructureAutomation #90DaysOfDevOps #TerraWeek #DevOpsKaJosh #TrainWithShubham
Happy Learning!
@TrainWitShubham
๐ Day 60 of #90DaysOfDevOps โ Kubernetes Capstone Completed! ๐
Today I brought together everything I learned over the past 10 days by deploying a complete WordPress + MySQL application on Kubernetes. From Namespaces, Secrets, ConfigMaps, StatefulSets, PVCs, Deployments, Services, Resource Limits, Health Probes, Autoscaling (HPA), to HelmโI combined all the core Kubernetes concepts into one real-world, production-like project.
โ
Deployed WordPress + MySQL in a dedicated namespace
โ
Configured secure Secrets & ConfigMaps
โ
Used StatefulSet with persistent storage for MySQL
โ
Exposed the application using a NodePort Service
โ
Verified self-healing by deleting Pods
โ
Confirmed data persistence after MySQL recovery
โ
Configured Horizontal Pod Autoscaler (HPA)
โ
Compared manual deployment with Helm charts
This capstone gave me hands-on experience in building a scalable, resilient, and production-ready Kubernetes application. One of the biggest milestones in my DevOps journey so far! ๐
https://t.co/F8qxo0be7f
#90DaysOfDevOps #Day60 #DevOps #Kubernetes #K8s #CloudComputing #CloudNative #Docker #Containers #WordPress #MySQL #StatefulSet #Deployment #Namespace #ConfigMap #Secrets #PersistentVolume #PVC #Storage #NodePort #Helm #Autoscaling #HPA #Linux #PlatformEngineering #SRE #Infrastructure #IaC #OpenSource #TechCommunity #LearningInPublic #DevOpsJourney #SoftwareEngineer #Automation #GitHub #TechTwitter #ContinuousLearning #CareerGrowth #DevOpsKaJosh #TrainWithShubham
Happy Learning!
@TrainWitShubham
๐ Day 58 of #90DaysOfDevOps โ
Today I explored Kubernetes Metrics Server and Horizontal Pod Autoscaler (HPA) to understand how Kubernetes automatically scales applications based on real CPU usage. I installed the Metrics Server, monitored resource usage with kubectl top, deployed a CPU-intensive application with resource requests, created an HPA using both imperative commands and the autoscaling/v2 API, generated load to trigger automatic scaling, and learned how HPA behavior controls scale-up and scale-down policies. This was a great hands-on exercise in building self-healing, scalable Kubernetes workloads and understanding how resource metrics drive autoscaling decisions.
https://t.co/cbLvv3pvaZ
#90DaysOfDevOps #DevOps #Kubernetes #K8s #MetricsServer #HPA #HorizontalPodAutoscaler #CloudComputing #CloudNative #Containers #Docker #Linux #PlatformEngineering #SRE #Automation #InfrastructureAsCode #IaC #Terraform #Ansible #AWS #Azure #GCP #OpenSource #GitHub #LearningInPublic #TechCommunity #DevOpsEngineer #KubernetesLearning #CNCF #100DaysOfCode #DevOpsKaJosh #TrainWithShubham
Happy Learning!
@TrainWitShubham
๐ Day 55 of #90DaysOfDevOps โ Today I learned one of the most important Kubernetes concepts: Persistent Volumes (PV) & Persistent Volume Claims (PVC)! ๐ฆ
Containers are ephemeral, but production applications like databases need persistent storage. In today's hands-on lab, I explored the difference between temporary (emptyDir) storage and persistent storage using PVs & PVCs. I created static and dynamic volumes, understood StorageClasses, verified volume binding, and confirmed that data survives Pod deletion and recreation. This topic is a must-know for anyone preparing for Kubernetes, CKA, CKAD, or DevOps interviews.
I also created a detailed handwritten cheat sheet to simplify these concepts for beginners and anyone revising Kubernetes storage. Hope it helps others on their DevOps journey! ๐
๐ Check out my GitHub repository for all the practice YAML files, markdown notes, and hands-on labs from my #90DaysOfDevOps journey! Your โญ and feedback are always appreciated.
https://t.co/hzILWUxVQN
#90DaysOfDevOps #Kubernetes #DevOps #CloudNative #Docker #K8s #Terraform #AWS #GitHub #GitOps #CloudComputing #OpenSource #CKA #CKAD #CNCF #Kubectl #Linux #LearningInPublic #DevOpsEngineer #CloudEngineer #DevOpsKaJosh #TrainWithShubham
Happy Learning!
@TrainWitShubham
๐ Day-23/180 โ DevOps Journey | โ๏ธ Day-6/20 โ AWS Challenge
Today's focus: AWS IAM Roles & Secure Access ๐
โ
Trust Policy vs Permission Policy โ
STS AssumeRole โ
EC2 Instance Profiles โ
OIDC Federation Basics
#AWS #IAM #STS #OIDC #CloudSecurity #DevOps #90DaysOfDevOps
I put my Kubernetes networking knowledge into practice today! ๐
Day 53 of #90DaysOfDevOps โ Kubernetes Services
One of the biggest challenges in Kubernetes is that Pods are ephemeralโtheir IP addresses change whenever they're recreated. That's where Services come in, providing a stable network endpoint, built-in service discovery, and load balancing across Pods.
Today's hands-on tasks included:
โ
Deploying an Nginx application with 3 replicas
โ
Exposing it using ClusterIP, NodePort, and LoadBalancer Services
โ
Verifying Pod-to-Service communication from inside the cluster
โ
Exploring Kubernetes DNS (service-name.namespace.svc.cluster.local)
โ
Understanding why EXTERNAL-IP remains <pending> on local clusters and how cloud providers provision LoadBalancers
โ
Comparing real-world use cases for each Service type and cleaning up resources
This session made Kubernetes networking much clearer. Understanding how applications communicate inside and outside the cluster is a key step toward building production-ready Kubernetes applications.
๐ I've documented all my notes, YAML manifests, commands, and explanations in my GitHub repository. Check it out and feel free to share your suggestions or feedbackโthey're always welcome!
https://t.co/ZKRSCTH2qH
๐ฌ Which Kubernetes Service type do you use the most in your projectsโClusterIP, NodePort, LoadBalancer, or do you rely on Ingress? Let's discuss! ๐
#Kubernetes #DevOps #CloudComputing #Docker #K8s #PlatformEngineering #CloudNative #InfrastructureAsCode #SRE #Linux #OpenSource #100DaysOfCode #90DaysOfDevOps #LearningInPublic #TechTwitter #GitHub #DevOpsKaJosh #TrainWithShubham
Happy Learning!
@TrainWitShubham
๐ Day 51 of #90DaysOfDevOps | Kubernetes just got real! โธ๏ธ
Today I stopped just learning Kubernetes concepts and started deploying my first Pods from scratch using YAML manifests. I explored the anatomy of a Kubernetes manifest (apiVersion, kind, metadata, and spec), deployed Nginx and BusyBox Pods, compared Declarative vs Imperative approaches, validated manifests with --dry-run, worked with labels & selectors, and learned why standalone Pods aren't used in production.
Every small step makes Kubernetes feel less intimidating and more practical. ๐ก
๐ I've also documented everything with detailed notes, commands, examples, and explanations. Check out my GitHub repository for the complete Day 51 notes and follow along with my DevOps journey!
https://t.co/pRjUPtjT1n
๐ฌ What's one Kubernetes concept that confused you the most when you started? Let's discuss in the comments!
#Kubernetes #DevOps #CloudComputing #K8s #Docker #YAML #Linux #Cloud #PlatformEngineering #SRE #OpenSource #GitHub #100DaysOfCode #100DaysOfDevOps #TechCommunity #LearningInPublic #DevOpsEngineer #CloudNative #InfrastructureAsCode #CodingJourney #DevOpsKaJosh #TrainWithShubham
Happy Learning!
@TrainWitShubham
๐ HALFWAY THERE โ DAY 50/90 OF MY #90DaysOfDevOps JOURNEY! ๐
From learning Linux commands to building CI/CD pipelines, working with Docker, Terraform, GitHub Actions, and now stepping into Kubernetesโit's been an incredible hands-on journey. ๐
๐ Day 50: Kubernetes Architecture & Cluster Setup
Today I learned:
โ
Why Kubernetes was created
โ
Control Plane vs Worker Node architecture
โ
API Server, etcd, Scheduler & Controller Manager
โ
kubelet, kube-proxy & Container Runtime
โ
Installing kubectl
โ
Creating a local cluster using kind
โ
Exploring nodes, namespaces & system pods
โ
Understanding the complete kubectl apply request flow
โ
Cluster lifecycle management & kubeconfig basics
I also created a detailed handwritten Kubernetes cheat sheet packed with architecture diagrams, flowcharts, commands, tips, and quick revision notesโperfect for anyone starting their Kubernetes journey.
โญ If you're learning DevOps or Kubernetes, check out my GitHub repository for complete notes, hands-on projects, and daily progress. Your feedback, suggestions, and GitHub โญ are always appreciated!
https://t.co/tHp41GJXEq
Let's keep learning, building, and growingโone day at a time. The journey to becoming a DevOps Engineer continues! ๐
#90DaysOfDevOps #Day50 #Kubernetes #K8s #Kubectl #CloudNative #ContainerOrchestration #Docker #DevOps #CloudComputing #PlatformEngineering #SRE #Linux #Terraform #GitHubActions #AWS #InfrastructureAsCode #OpenSource #TechCommunity #SoftwareEngineering #Developer #Programming #LearnInPublic #ContinuousLearning #CareerGrowth #IT #Tech #GitHub #Kubernetes #CloudNative #Docker #Linux #DevOpsKaJosh #TrainWithShubham
Happy Learning!
@TrainWitShubham
๐ Day 49 of #90DaysOfDevOps ๐
Today I took my CI/CD pipeline one step further by making it secure by default. Instead of only building and deploying, my pipeline now performs automated security checks before code reaches production. ๐ก๏ธ
โ
Trivy Docker Image Scanning
โ
GitHub Secret Scanning & Push Protection
โ
Dependency Review for Pull Requests
โ
Least-Privilege Workflow Permissions
Every PR is now checked for vulnerable dependencies, every Docker image is scanned for CVEs, secrets are protected, and deployments only continue when security checks pass. That's the essence of DevSecOpsโbuilding security into the development lifecycle instead of treating it as an afterthought. ๐
๐ป I'd love your feedback!
Check out my GitHub repository, review my implementation, and let me know if there are improvements or DevSecOps best practices I should add. Suggestions and constructive feedback are always welcome! ๐
๐ GitHub Repo: https://t.co/ne0eOFOt22
#DevSecOps #90DaysOfDevOps #GitHubActions #Docker #Trivy #CyberSecurity #DevOps #CI #CD #Cloud #OpenSource #LearningInPublic #Automation #GitHub #100DaysOfCode #90DaysOfDevOps #DevOpsKaJosh #TrainWithShubham
Happy Learning!
@TrainWitShubham
๐ Day 47 of #90DaysOfDevOps | Mastering Advanced GitHub Actions Triggers โก
Today I explored how to build more intelligent and event-driven CI/CD pipelines using GitHub Actions.
โ
Pull Request lifecycle events (opened, reopened, synchronize, closed)
โ
PR validation checks (branch naming, file size & PR description)
โ
Scheduled workflows using Cron expressions
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Path & branch filters for smarter workflow execution
โ
Chaining workflows with workflow run
โ
Triggering workflows externally using repository dispatch and GitHub CLI
One of my favorite learnings today was triggering a GitHub Actions workflow from an external event and passing custom JSON payloadsโsomething that's widely used in real-world CI/CD pipelines.
Every day I'm getting one step closer to becoming a better DevOps Engineer through consistent hands-on practice.
๐ Check out today's code and workflows on my GitHub:
https://t.co/1lK8BNfEKr
Feedback and suggestions are always welcome! ๐
#GitHubActions #DevOps #CI_CD #Automation #GitHub #CloudComputing #100DaysOfCode #LearningInPublic #90DaysOfDevOps #DevOpsKaJosh #TrainWithShubham
Happy Learning!
@TrainWitShubham
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