Today: September 25, 2021 4:00 pm
A collection of Software and Cloud patterns with a focus on the Enterprise

Tag: Authentication


Self-service access control in kubernetes

One of the most significant benefits of containers is that they empower a software engineer to explore technologies and infrastructure decisions quickly. Containers make it possible for a developer to try on new technologies and platforms and consider infrastructure decisions without a long approval and requisition process. It also reduces cost significantly, since many containers can run on a developer laptop. Access control and management of Kubernetes introduces a potential roadblock to this agile aspect of container-centric development. As a result, I put a lot of thought into how to provide easy, fast,......

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I’m interested in allowing a user to register on my site/app using their social account credentials (e.g. Google, Facebook, LinkedIn, etc.). It should also be possible to register using an email address. Since the site/app will be composed of a handful of microservices, I would want to provide my own identity service, which might includes profile information and roles. This should be possible with oAuth. I found plenty of examples of how to use oAuth against someone’s social accounts. What I didn’t find were any examples of how to manage user registration and......

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I have recently had to work with a few REST APIs that exhibited some poor design choices that I had previously assumed would be obvious. Since they may not be obvious to everyone, I wanted to highlight them. Idempotent operations When an operation is idempotent that means that an end state will be identical regardless of how many times the operation is executed. If the end state is dependent on the number of times an operation is executed, then it is not idempotent. Why is this important? REST interfaces should assume unreliable networks......

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Authentication in MongoDB provides ‘normal’, which is full read and write, or ‘readonly’ access at a database level. There are two scenarios when authentication comes into play: single server and multi-server. When using a single server, authentication can be enabled but adding --auth to the startup parameters. When using a replicaset, sharded setup or combination, a key file must be provided and the --keyFile parameter used at startup. This enables each node to communicate with other nodes using a nonce scheme based on the keyFile. In this configuration, --auth is implied and the......

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Security in MongoDB is relatively young in terms of features and granularity. Interestingly, they indicate that a typical use case would be to use Mongo on a trusted network “much like how one would use, say, memcached.” MongoDB does NOT run in secure mode by default. As it is, the features that are available are standard, proven and probably sufficient for most use cases. Here’s a quick summary of pros and cons. Pros Nonce-based digest for authentication Security applies across replica set nodes and shard members Cons Few recent replies on security wiki......

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For simplicity and security I’ve decided to integrate with the Google Account authentication mechanism that’s built into Google App Engine. This allows anyone with a Google account to login to my application without the need to setup another account. This also gives me access to the user’s valid email in order to send messages and other communication related to the service I provide. So far I have three separate ‘areas’ for interfacing with my service. The first area is comprised of public pages, such as the home page or privacy policy. The next......

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Today I was working on a small web application that will run on a corporate intranet. There was an existing LDAP server and many existing web apps use the authentication details cached in the browser (Basic Authentication) to identify a user and determine access levels. My application is written in PHP and I wanted to leverage this same mechanism to determine the current user and customize my application. Since my searches on Google didn’t pull up anything similar, I want to document what I did. I did explore the possibility of using PHP’s......

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