@josefrank21
Cloud Specialist & SRE Practitioner | CKA, AZ-104, LPIC-3 | Security & Automation
Cloud Specialist with expertise in SRE, infrastructure, and security. Certified in CKA, LPIC-3 (Security), and AZ-104 My focus rests on three pillars: Cloud Architecture, Security, and Containerization, currently integrating AI to drive operational efficiency.
Cloud Architecture design, SRE mentorship, Technical writing, and System Administration consultancy. Open to collaborating on open-source projects or speaking at tech events.
Feb 11 · 4 min read · 1. Container Management (Lifecycle) CommandPurposeExample docker psList running containers.docker ps -a (to see all containers, including those that exited with errors). docker runCreate and start a container.docker run -d --name web nginx (r...
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Feb 8 · 3 min read · 1. System Observability & Performance CommandPurposeReal-World SRE Example top / htopProcess monitoring.htop (to visually identify which CPU core is pinned at 100%). uptimeSystem load average.uptime (to check if the load average exceeds the n...
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Feb 3 · 3 min read · Automate to scale, not just to survive In the world of Site Reliability Engineering (SRE), not all automation is created equal. There is a silent enemy that consumes engineer’s time, stalls innovation, and drains operational budgets: Toil. If your da...
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Feb 2 · 2 min read · In infrastructure, you don't guess—you verify. Whether you're debugging a Kubernetes CNI or a cloud-native database, knowing the underlying protocol is the key to faster troubleshooting. Here is a cheat sheet of the 25 most important protocols and th...
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Jan 28 · 3 min read · The Incident Doesn't End at the "Fix" In the daily life of an SRE, the first reaction to a downtime is the "Quick Fix": restarting a pod, scaling a node, or triggering a rollback. However, an incident isn’t truly closed when the service returns to no...
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