How to Purge Cloudflare Cache When Your CDN Serves Stale Files
I hit this issue in production: a file was updated in S3 (origin), but Cloudflare kept serving an older cached version.
Custom-home
Shaz's DevOps & Security Journey
DevOps Engineer | Cybersecurity Enthusiast | Cloud Architect
Building secure infrastructure through continuous learning and sharing knowledge
Tech Stack & Expertise
Cloud & Infrastructure
- AWS
- Azure
- Google Cloud
- Kubernetes
- Docker
Security & DevOps
- Vulnerability Scanning
- Secrets Management
- CI/CD Pipelines
- Infrastructure as Code
- Threat Detection
Tools & Technologies
- Terraform
- Python
- Bash
- Monitoring
- Automation
Current Focus
Professional
- DevOps Engineer at Seqera Labs
- Building secure CI/CD pipelines with Trivy integration
- Automating secrets management with ESO
- Multi-cloud infrastructure automation
Learning & Growth
- MSc Cybersecurity at University of York
- Advanced HackTheBox challenges
- Cloud security architecture patterns
- Expanding penetration testing skills
My DevOps Journey
May 2025 - Present
DevOps Engineer
Seqera Labs
Building secure CI/CD pipelines with integrated security scanning, automating secrets management with ESO, and implementing infrastructure as code with embedded security baselines.
Kubernetes Terraform CI/CD Security
2024 - 2025
Cloud Support Engineer
Seqera Labs
Provided technical support for cloud infrastructure, troubleshooting complex deployment issues, and optimizing system performance across multi-cloud environments.
AWS Azure GCP Troubleshooting
2023 - 2024
IT Administrator
Cloudbeds
Managed enterprise IT infrastructure, implemented automation solutions, and maintained 99.9% system uptime while reducing support ticket volumes by 40%.
System Administration Automation Infrastructure
2022 - 2023
Infrastructure Technology Helpdesk Administrator
TractionOnDemand
Specialized in infrastructure support, network troubleshooting, and user technical assistance while building foundational DevOps skills.
Infrastructure Networking Technical Support
2021 - 2022
Application Support Analyst & Service Desk Analyst
Impellam Group
Started my tech journey in application support and service desk roles, developing problem-solving skills and technical foundation.
Application Support Service Desk Problem Solving
Expected August 2026
MSc Computer Science with Cybersecurity
University of York
Advanced studies in cybersecurity, focusing on threat detection, security architecture, and defensive strategies.
Cybersecurity Threat Analysis Security Architecture
Latest Insights
AppArmor for Container Runtimes on Ubuntu 24.04: Solving the Batch Start Task Crash
Ubuntu 24.04 (Noble Numbat) introduced significant security hardening, including a stricter default AppArmor profile for...
Jun 04, 2026
NLB Idle Timeouts and Container Image Builds: Why Large Pulls Die at 350s
During a recent infrastructure audit, a bizarre CI failure was identified: container image pulls for...
Jun 03, 2026
On-Prem Grafana to GitOps: Migrating Dashboards as Code
Manual dashboard management in Grafana often leads to configuration drift. In a recent initiative, I...
Jun 01, 2026
A Deep Dive into Kustomize for Multi-Env Setups
In my post about building an EKS cluster, I mentioned that Kustomize “saved my sanity.” That wasn’t an exaggeration. Before I adopted it, managing Kubernetes configurations for different environments (dev,...
DevOps Pre-Merge Checklist for Shared Infrastructure
I used to look at small Terraform PRs and think, “this is tiny, it will be fine.” A few incidents taught me that tiny infrastructure changes can still cause big...
Bug Bounties as a Hobby: What Keeps Me Consistent
Bug Bounties as a Hobby: What Keeps Me Consistent
CI/CD Pipelines for Harbor to ECR Migration and Terraform Plan
I recently worked on two pipelines that solved real delivery problems:
Grafana Migration: From On-Prem to Cloud
Grafana Migration: From On-Prem to Cloud
Earning My TCM Security Practical Junior Penetration Tester Certification
Earning My TCM Security Practical Junior Penetration Tester Certification
Hack The Box: TwoMillion (Easy) — My Experience
Hack The Box: TwoMillion (Easy)
Terraform Modules: How I Built Reusable Azure and GCP Building Blocks
Terraform Modules: Azure and GCP, My Way
GitHub Actions Security Hardening — What I Actually Use
GitHub Actions Security Hardening — What I Actually Use