Ambassador is one of the Separation of Concern (SoC) implementation. In cloud platform, functional features (e.g. Business logic) and non-functional features (e.g. retry / queue / etc) are implement in multi-containers: main application and proxy.
Checksum ensure the integrity of file. In AWS S3, it also using eTag to do similar things. It create MD5 value and store in eTag. However, it is not a real checksum for s3 object […]
Application Performance Monitoring is one of the method to ensure application’s availability and status. However, most of them only can check the platform status (e.g. CPU usage / Thread / Memory / etc), some organization […]
AWS CodeArtifact is one of the AWS devops feature for package management. Even compare with NexusOSS, it cannot upload package manually, but it still worth to use if using AWS as DevOps Platform.
現在Cloud Computing 技術日漸成熟, 其實說到底, 就是讓user在一個平台(Platform)上做到要做的事情, 例如Google 和Microsoft 這類人人都可以用的公有雲(Public Cloud), 除了email, calendar 還有 file storage / editing 這類軟件即服務 (Software-as-a-Service, SaaS). 然而, 在若果將業務放到公有雲上, 雖然一次性的建立成本會低, 但其營運成本便相對較高, 除了服務費用 (Service Charge), 替換成本(Switching Cost)及將公司敏感資料放到網上而洩密(Data leakage)等風險成本亦會出現. 因此, 部份公司亦會決定自己架構私有雲(Private Cloud). 若要做到類似Google 和Microsoft 相類似的話, […]
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