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Hi, I am Duc Le

Duc Le

DevOps Engineer

I am a DevOps engineer with 4+ years of working experience. I like learning technology and sharing it with people, so I write this blog to take note of what I learned and hope that you like it.

Certified Kubernetes Administrator
Istio and IBM Cloud Kubernetes Service
Terraform Associate

Skills

Experiences

1
Financial System - DevOps Engineer
Saigon Technology

Jan 2022 - July 2023,

Responsibilities:
  • Setup and manage system on Azure
  • Implement CI/CD pipeline with Azure Pipelines
  • Manage configuration and deploy application
  • Technologies: AppServices, Functions, LogicApps, StorageAccount, APIM, Cosmos, AppInsight, MSSQL, Python, Powershell
Sales Platform - DevOps Engineer
Saigon Technology

May 2021 - Jan 2022,

Responsibilities:
  • Setup and manage system on multiple regions
  • Manage and deploy applications using Ansible
  • Building the monitoring on-premise system using Zabbix
  • Technologies: EC2, ELB, RDS, S3, CloudFront, CloudWatch, VPC, SNS, Lambda, Jenkins, Ansible, Terraform, Redis, Twilio
2
3
Video Social Network - DevOps Engineer
TMA Solutions

Sep 2019 - Apr 2021,

PreExample Co. is a gateway company to enter into Example co. So, nothing special here.

Responsibilities:
  • Setup and manage system on AWS EKS
  • Implement CI/CD pipeline with Jenkins
  • Technologies: Kubernetes, Helm, EFK, Prometheus, Grafana, Keycloak, Redis, MongoDB, Kafka

Recent Posts

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Diagram as code

About Diagrams Diagrams lets you draw the cloud system architecture in Python code. Official website: https://diagrams.mingrammer.com Github repo: mingrammer/diagrams Installation Python >= 3.6 # https://docs.python-guide.org/starting/install3/linux/ $ sudo apt-get install python3.8 Graphviz # https://graphviz.gitlab.io/download/ $ sudo apt install graphviz Diagrams # https://diagrams.mingrammer.com/docs/getting-started/installation $ pip install diagrams Overview There are 4 type of objects in Diagrams file: Diagram is a primary object representing a diagram. Node is a second object representing a node or system component.

August 22, 2023 Read
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Kubernetes with Kubespray

Requirements Ansible node: a Linux machine to run ansible (able to run in WSL or Docker but it’s not recommended) K8s nodes: Master nodes: 4GB RAM is recommended (2GB RAM will cause very low performance) Worker nodes: can start with 1CPU and 2GB RAM You can setup a K8S cluster with only 1 node: master + worker (+ ansible) Installation steps Setup environments SSH connection: Ansible connects nodes over SSH, so the easy way is create the same user with public ssh key on all K8s nodes.

August 17, 2023 Read
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Overview of my HomeLab

I setup this Homelab to learn and experiment new technologies, then improve my skills. This Homelab includes followings: On-premise infrasture Hypervisor Proxmox XCP-NG Cloud infrasture AWS Azure IaC, CM tools Terraform Ansible CI/CD Jenkins GitHub Actions ArgoCD Kubernetes Kubespray Rancher EFK Prometheus + Grafana Bitnami Sealed Secrets HashiCorp Vault Hardware 1x Dell 7050 SFF CPU: Intel i7-6700 RAM: 32GB Storage: 256GB SSD Network I don’t have any static IP so I setup DDNS with Cloudflare and install a WireGuard VPN server with port forwarding.

August 11, 2023 Read