devops
DevOps practices and CI/CD implementation
Learn how to configure Azure DevOps permissions for environments so team members can approve YAML pipeline access to DevServers without admin intervention. Step-by-step guide to environment security, manual approvals, and troubleshooting.
Learn how to monitor UDP ports on remote hosts using Zabbix without installing agents on target systems. Configure custom scripts and built-in checks for effective UDP service monitoring.
Resolve Snakemake RuntimeError can't start new thread in large workflows with many studies. Use --max-threads 1, ulimit -u 4096, optimize jobs/cores for job_scheduler.py thread exhaustion at 98% complete.
Learn how a Zabbix agent on 192.168.1.2 monitors UDP ports on remote hosts like 192.168.1.3 without installing an agent. Use net.udp.service for NTP, custom scripts for any port, and troubleshoot UDP pitfalls for reliable monitoring.
Learn how Helm handles externalIPs for Kubernetes services. Discover why manual configuration is required and best practices for managing externalIPs in Helm deployments.
HTTP/3 not working with Angie server in Russia due to ISP network restrictions and QUIC protocol blocking. Learn about technical symptoms, server configuration, and workarounds.
Step-by-step guide to configure cron.bat in Open Server scheduler for Symfony console commands like CronCommand and PaymentCommand. Use %sitedir%, %progdir% variables, nnCron syntax, and troubleshoot logs for reliable Windows automation.
Learn how to keep Docker containers running with interactive shells using tty, stdin_open, and long-running commands. Solutions for docker compose exec and entrypoint configuration.
Learn the fastest methods to copy a PostgreSQL database from production to development using pg_dump, pg_restore piping, pg_basebackup, and pgcopydb. Step-by-step guides, best practices for speed, security, and automation.
Is committing .gitignore a best practice? Explore benefits like tracking ignore pattern changes over time, team consistency, clean repos, CI/CD support, plus drawbacks and fixes like local excludes for optimal Git workflows.
Master Dockerfile comments using # for single-line notes Docker ignores. Explore syntax, examples, parser directives, common mistakes, and best practices for clear dockerfile commands and builds.
Comprehensive guide to troubleshooting OpenELB external IP assignment issues in Kubernetes. Learn to resolve 'no registered speaker' errors and configure your load balancer kubernetes setup properly.
Comprehensive guide to Pimcore upgrade from 6.9 to 10.x: handle deprecations, outdated packages like Guzzle, breaking changes, PHP 8 shift. Direct to 10.5 or via 10.1? Real experiences, steps, and checklists for safe migration.
Learn how to declare and manage multiple variables with Python's with statement. Explore syntax options, advanced techniques with ExitStack, and best practices for resource management.
Resolve 'Warning: Remote Host Identification Has Changed!' error in GitHub SSH from 2023 RSA key update. Step-by-step fix: ssh-keygen -R github.com, ssh-keyscan to add new keys, verify with ssh -T git@github.com for git push/clone.
Exploring what happens when malloc'd memory isn't freed before C program termination. OS memory reclamation vs proper memory management practices for simple vs long-running applications.
Complete guide to setting up a self-hosted VKontakte auto-posting solution using Mixpost. Schedule posts, create drafts, add images, and manage your VK communities with full control.
Learn how to use cURL with username and password authentication. Complete guide covering basic auth, security considerations, and troubleshooting authentication errors.
Learn how to set up externalIPs in Kubernetes services using Helm charts. Fix 'pending' status, troubleshoot routing issues, and apply best practices for bare-metal k8s service exposure.