Brandon H.’s Post

Using AWS WAF Efficiently To Secure Your CDN, Load Balancers, and API Servers https://lnkd.in/dHwd9fZx #Programming #WebDevelopment #DevOps #CodingTutorials #TechNews #FreeResources #DeveloperCommunity #LearnToCode

#devopsminibytes ⚙️🚀 𝗗𝗲𝘃𝗢𝗽𝘀𝗠𝗶𝗻𝗶𝗕𝘆𝘁𝗲𝘀 ⚙️🚀 💻 𝗟𝗶𝗺𝗶𝘁 𝗖𝗣𝗨 & 𝗠𝗲𝗺𝗼𝗿𝘆 𝗼𝗳 𝗗𝗼𝗰𝗸𝗲𝗿 𝗖𝗼𝗻𝘁𝗮𝗶𝗻𝗲𝗿 ⚙️ 🔹 𝗖𝗼𝗺𝗺𝗮𝗻𝗱: 💻 docker run -dt --name vish_cont --memory 100m --cpus 0.5 busybox 📝📝starts a container named 𝘃𝗶𝘀𝗵_𝗰𝗼𝗻𝘁 with 𝟭𝟬𝟬 𝗠𝗕 of memory and 𝟬.𝟱 𝗰𝗼𝗿𝗲𝘀 of CPU 🔹𝗩𝗮𝗹𝗶𝗱𝗮𝘁𝗶𝗼𝗻 𝗼𝗳 𝗠𝗲𝗺𝗼𝗿𝘆: 💻 docker stats vish_cont 📝📝 shows the stats of the running container 💻 docker exec -it vish_cont sh 📝📝 gets into the running container named vish_cont 💻 cat /sys/fs/cgroup/memory.max 📝📝 shows the output max memory in bytes 📝📝📝 divide the number by 1024*1024 to get in MB 🔹𝗩𝗮𝗹𝗶𝗱𝗮𝘁𝗶𝗼𝗻 𝗼𝗳 𝗖𝗣𝗨 💻 docker exec -it vish_cont sh 📝📝 gets into the running container named vish_cont 💻 cat /sys/fs/cgroup/cpu.max 📝📝 shows the output of the number of cores used 📝📝📝 divide the output first number with the second to get the number of cpu cores Follow Vishweshwaran M J and hashtag #DevOpsMiniBytes for more such content #DevOpsMiniBytes #VishDevOpsMiniBytes #Docker #AWS #DevOps #DevSecOps #Linux #Bash #CICD

This is DevSecOps project, In which I have successfully deploy Amazon E-commers application on docker container. challenges I faced - code bugs, scripting file modification, terraform auto script deploy, credential issues and much more. Tools were used: AWS Services(EC2, VPC, IAM), GitHub, Visual Code Studio, Terraform, Jenkins, Security tools (SonarQube, Trivy) #AWS #DevSecOps

🚀 Excited to share a brief overview of Kubernetes (K8s) architecture! I’ve worked extensively with K8s and wanted to illustrate its core components. 🔹 Master Node: - API Server: The front-end of the control plane, communicating with all other components. - Scheduler: Assigns workloads to nodes. - Controller Manager: Ensures the cluster's desired state. - ETCD: Key-value store for cluster data. 🔹 Worker Node: - Kubelet: Ensures containers are running in a Pod. - Kube-Proxy: Manages network rules and communication. Kubernetes is pivotal for container orchestration, ensuring scalability, high availability, and efficient resource utilization. . . . . #kubernetes #devops #docker #aws #cloud #linux #python #cloudcomputing #azure #developer #technology #jenkins #coding #software #java #programming #k #javascript #git #bigdata #devopsengineer #s #ansible #machinelearning #microservices #it #datascience #gcp #cybersecurity #googlecloud

🚀 Mastering Terraform: How to Use the for Expression to Filter and Group Instances In my latest article, I walk through some practical examples of how to use the for expression to: 1️⃣ Filter Instances Based on OS Type Easily separate Linux and Windows instances from a map of objects. 2️⃣ Group Instances by Instance Type Dynamically group EC2 instances by type (e.g., t3.micro, m5.large), making it easier to manage large-scale environments. 🔍 Whether you're new to Terraform or an experienced DevOps engineer, these tips will help you get more out of Terraform's declarative approach to infrastructure management. Check out the full post here and learn how to apply the for expression in your Terraform scripts to create cleaner, more organized configurations. 💻👇 https://lnkd.in/dJErgMRZ #Terraform #DevOps #InfrastructureAsCode #IaC #Automation #aws

Hey DevOps,    Looking for right Linux commands which is very useful on daily basis?    1. Create directory or folder  # mkdir folder_name  e.g. # mkdir demo-folder     2. Check present working directory path   # pwd    3. Create empty file   # touch file_name  e.g. touch demo-file.txt    4. Change directory  # cd dir_path  e.g. cd /home/username     5. Copy files from one location to another location  # cp -rvp source_file_path target_file_path  e.g # cp -rvp source_file target_file    6. Copy one time whole data and then incremental changes  # rsync -avz source_file target_file_path  e.g.# rsync -avh source/ target     7. Move directory or files from one to another location or rename  # mv file_name new_location_path  e.g. mv demo-file.txt /home/demo-user/  e.g. # mv file_old file_new     8. Check list of files and directory  # ls    9. Check file content  # cat file_name    10. Check last 10 lines from file  # tail -n 10 demo_file.txt  # tail -f demo_file.txt    11. Check IP address In Linux  # ifconfig     12. Check list of open ports  # netstat -tlupn    13. Remove directory or files  # rm -rf dir_name  # rm -rf file_name     14. Check disk space utilization  # df -h     15. Check particular folder or file size  # du -sh dir_name  # du -sh file_name     16. Check total memory & utilization status   # free -tm     17. Check system uptime  # uptime     18. Create system user   # useradd user_name    19. Download remote url base package  # wget url  # curl url     20. Install packages  # yum install nginx    21. Check list of process  # ps -auxf    22. Check system load status, process, uptime   # top  # htop     23. Terminate or kill any specific process  # kill -9 process_id  ( You can get process id by command # ps -auxf )    24. Check who logged in current user  # whoami    25. Check parameter options for particular commands  # man command  # command --help  e.g. man netstat or cp --help     26. Shutdown the system  # poweroff   # init 0  # shutdown     27. Reboot system  # reboot  # init 6  # shutdown -r     28. Check system date  # date     29. Find any keyword from file  # grep <keyword> filename  e.g. grep "error" logfile.txt    30. How to compress folder   # zip -r foldername.zip dir_name  e.g. zip -r demo_folder.zip demo_folder     31. Change permission for folders or files  # chmod -r 755 folder_name   e.g. chmod -r 755 demo_folder     32. Change ownership of folder or file  # chown -R username:username folder_name    33. How to give special permission for folder or file  # setfacl -m ec2-user:rwx backup  # getfacl backup <--- to check permission applied or not    Follow & Subscribe For More Free DevOps Content YouTube Channel : https://lnkd.in/dnZTSrhG Looking for DevOps Real Time Training? WhatsApp : +91 7249 0590 06 #AWS #Cloud #AWSCommunity #CloudCommunity #DevOps #DevOpsCommunity #ITCareer #Software #Career #CareerSuccess #Elearning #Community #Jobs #Interview #JobHunter #DevOpsMarket

𝗝𝗲𝗻𝗸𝗶𝗻𝘀 𝘀𝗰𝗲𝗻𝗮𝗿𝗶𝗼-𝗯𝗮𝘀𝗲𝗱 𝗶𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄 𝗾𝘂𝗲𝘀𝘁𝗶𝗼𝗻 𝗮𝗻𝗱 𝗮𝗻𝘀𝘄𝗲𝗿. 𝗦𝗰𝗲𝗻𝗮𝗿𝗶𝗼: 𝗝𝗲𝗻𝗸𝗶𝗻𝘀 𝗝𝗼𝗯 𝗙𝗮𝗶𝗹𝘀 𝗗𝘂𝗲 𝘁𝗼 𝗕𝘂𝗶𝗹𝗱 𝗜𝘀𝘀𝘂𝗲𝘀. 𝗤𝘂𝗲𝘀𝘁𝗶𝗼𝗻𝘀: You have a Jenkins pipeline, and the build step is failing. How will you debug and resolve the issue? 𝗔𝗻𝘀𝘄𝗲𝗿:  1. Review Console Logs: Check the detailed build logs in Jenkins to identify where the failure occurred. 2. Verify Build Commands: Check if the build commands (e.g., Maven, Gradle, or shell scripts) are correct. Run them manually to isolate errors. 3. Check Dependencies: Ensure all required dependencies are installed on the Jenkins agent (e.g., JDK, Maven, Docker). 4. Workspace Cleanup: A previous build might have left corrupted files. Perform a workspace cleanup: 5. Disk Space/Memory: Verify if the Jenkins server or agent has sufficient memory and disk space. 6. Logs for Failures: Check external logs such as application or test logs generated during the build. #Azure #MicrosoftCertified #CloudComputing #DevOps #AzureCertification #immediatejoiners #DevOps #Cloud #Linux #AWS #Azure #GCP #Docker #Kubernetes #Ansible #Terraform #Jenkins #Python