@jialin.huang
FRONT-ENDBACK-ENDNETWORK, HTTPOS, COMPUTERCLOUD, AWS, Docker
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Original content since 2022

2025/05/05
AWS
IAM
S3
The Confusing assumeRole and Trust Policy The IAM Role, IAM User, Trust Relationship, Trust… I initially thought I only needed to understand the basic units like Users, Roles paired with Policies, which seemed simple and easy to get. But the...
2025/03/23
AWS
ECS
LOAD-BALANCING
TARGET-GROUP
Target Groups: Bridging Load Balancers and ECS Services ❌ LB (HTTPS:443) → TG (HTTPS:443) → ECS/Task (HTTP:80) ✅ LB (HTTPS:443) → TG (HTTP:80) → ECS/Task (HTTP:80) I wanted my ECS service to have its own DNS name with HTTPS. The DNS part is handled by Rou...
2025/02/22
What is Container-Optimized OS? Alternatives? is Google's own operating system specifically designed to run containerized images. Other alternatives such as Alpine Linux, Ubuntu/Debian, and the now-discontinued CoreOS, etc. After RedHat got Cor...
2024/10/30
AWS
Overview of Athena, Redshift, Kinesis Firehose, EMR, etc. Smaller scale: like a information center Larger scale: Like when an e-commerce site is about to launch a new product, and they need to see real-time customer behavior immediately. Others: like IAM ...
2024/10/30
AWS
EMR
Apache Projects and AWS Services Since I frequently see ‘xxx service for Apache ooo,’ I made this table out of boredom. https://projects.apache.org/projects.html https://docs.aws.amazon.com/emr/latest/ReleaseGuide/emr-whatsnew.html ...
2024/10/28
AWS
CLOUDTRAIL
INSPECTOR
MACIE
AWS Governance? Protection? Audit? Security, Identity, & Compliance Protection against DDoS attacks, with CloudFront, Route53, ELB Security, Identity, & Compliance Web-level protection against threats like IP-based filtering, geograp...
2024/10/24
AWS
DATASYNC
DMS
SNOW
AWS Migration & Synchronization Tools need internet byte KMGTPEZY B (Unit Abbreviations) minimal network connection It does not rely on real-time compute resources or the continuous involvement of online services. VM Import/Export is sim...
2024/10/21
AWS
CLOUDTRAIL
CLOUDWATCH
Some AWS Logging Tools — CloudWatch, CloudTrail, X-Ray, VPC Flow Logs, etc. Natively integrated with most AWS services. Some services automatically create logs for you when you use them. Eg. EC2, lambda, ECS Records AWS API calls - who used what service to do what. Think of...
2024/10/20
AWS
NETWORKING
Private Channels in AWS Networking Non-encrypted high-speed dedicated channel that directly interfaces with AWS services. The key difference lies in the VIF (Virtual Interface) endpoint: Since it's non-encrypted, you can build VPN on ...
2024/10/20
AWS
AWS Snapshots vs. Backups — Differences in Terms and Service Support When AWS services store snapshots, configurations, or backups in S3: Backups and snapshots are similar in description, but with key differences: Default snapshots prioritize quick recovery and high a...
2024/10/16
AWS RDS Database Enginesssss Comparison I read about RDS and thought it would be good to make a comparison. There are many SQL options available in the market, but aside from simple query usage, I haven’t seriously looked into why there a...
2024/10/12
AWS
AWS Services Spectrum — From Self Managed to Fully Managed, and Serverless The key difference between these two is "whether you need to adjust the resources used." This part has a definitive answer, as AWS officially states it clearly LOL https://aws.amazon.com/serverles...
2024/10/07
AWS
EC2
ROUTE53
EC2 Address — Auto-Assigned Public IP vs. Elastic IP vs. No-IP (DDNS) No DDNS service is provided; please install No-IP on your EC2 instance. DDNS (Dynamic DNS) is a service that automatically updates domain name resolution records to accommodate changes in IP addre...
2024/10/01
AWS
AZURE
GCP
VPC
Cloud Provider Network Architecture Comparison: AWS, Azure, and GCP This article explores the differences in how the three major cloud providers design and operate network units, focusing on the configurations of subnets, VPCs, regions, and availability zones. Based ...
2024/09/29
AWS
API-GATEWAY
DYNAMODB
LAMBDA
Serverless: Lambda, API Gateway, DynamoDB Together https://aws.amazon.com/tw/serverless/ All services mentioned are belonging to serverless you don't need to launch an entire backend project. You can simply upload a single file (like an index.js) to...
2024/09/29
DOCKER
Losing Fat for image — Multi-stage builds The original Dockerfile uses the complete golang:1.22 image as its base, resulting in a large final image (about 800-900MB) that includes the entire Go development environment, source code, and buil...
2024/09/29
GOLANG
AWS
ECR
ECS
ELB
FARGATE
ROUTE53
Implementing a Go HTTP Server and Websocket with Fargate and ECR This article explores AWS Elastic Container Service (ECS), focusing on Fargate and ECR. While we use a simple Go HTTP server as an example, our main goal is to understand ECS deployment processes. ...
2024/09/29
DOCKER
brutal solution — docker system prune Sometimes Dockerfiles have too many layers or remote dependencies (e.g., ADD), making it difficult to identify which layer is causing problems. This is especially annoying when some behaviors come fr...
2024/09/29
AWS
AWS VPC — How Network Traffic Travels Through Components In a VPC, the Internet Gateway serves as the connection to the internet. Route Tables direct traffic within the VPC and to the IGW. Subnets organize resources and are protected by NACLs at the subnet...