https://sudonull.com/fifo-for-one-time-docker-swarm-secrets
How to protect secrets in Docker Swarm from docker exec: solution via named FIFO channels. One-time reading, without Vault. Implementation for middle/senior devops.
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https://sudonull.com/dokploy-docker-swarm-platform-installation
Deploy Dokploy on a Linux server: installation script, Swarm, Traefik, Postgres/Redis. Requirements, script code, error handling. Ideal for DevOps. Install in 5 minutes and deploy containers.
https://sudonull.com/mtu-mismatch-in-docker-and-openstack-how-to-fix-ci-cd-failure
Diagnosis and solution of MTU mismatch problem between Docker and OpenStack that breaks builds. Step-by-step guide for DevOps.
https://sudonull.com/docker-on-vps-24-containers-in-production
How to deploy 24 containers on VPS with 6 GB RAM. Architecture, Elasticsearch optimization, SSH tunnels, monitoring without Prometheus. For DevOps and middle/senior engineers.
https://sudonull.com/docker-courses-2026-devops-and-backend
Review of top-6 Docker courses for DevOps and Python-backend. Salaries, programs, containerization skills. Choose a course with CI/CD and Kubernetes practice. Start learning today.
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