Gerlyn M ☸️

🕵🏻 DevOpsEngineer ✨ Tech Blogger ⭐
☸️ Learning in Public

[Kiran Iyer @kiraniyer0]

Optimizing CoreDNS in Production: 🧵

[Gerlyn M ☸️ @gerlyntwt]

Just started ☺️

[Gerlyn M ☸️ @gerlyntwt]

📢 New Article Alert!

I just published my first article on Hashnode ! 🌟

𝙍𝙚𝙖𝙙 𝙞𝙩 𝙝𝙚𝙧𝙚: https://t.co/tM6XhKmR5M

📌If you're interested in DevOps related Articles, don't miss it!

@hashnode

[Ruurtjan Pul @Ruurtjan]

|￣￣￣￣￣￣￣￣￣￣￣￣￣￣|
DNS can be learned
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[Gerlyn M ☸️ @gerlyntwt]

@build1point0 hey @build1point0 we have been trying to set up HashiCorp Hermes for the last 3 days, we are facing many issues with setup. Is there anyone who can help us to set up Hermes for our org?

[Gerlyn M ☸️ @gerlyntwt]

Hey @HashiCorp too tired of searching for resources to set up Hermes. I can't be able to set up by referring to your GitHub repository. Please clear my doubt can we are able to set up Hermes without Google workspace. If yes please guide me through how to do that ?

[Gerlyn M ☸️ @gerlyntwt]

@cloud_custodian @googledocs @HashiCorp Hey did you try Hermes, how did you setup that ?

[Gerlyn M ☸️ @gerlyntwt]

@yurynino Hi I'm trying to setup hashicorp Hermes I can't able to setup, getting errors like need Google workspace credentials. But I need to setup without a workspace, can we be able to do that ?

[Gerlyn M ☸️ @gerlyntwt]

@rawkode Hey people, I'm trying to set up this Hermes tool without Google workspace, I'm getting an error as I need Google workspace credentials. Can anybody guide me to set up this tool.

[Gerlyn M ☸️ @gerlyntwt]

@mimul Hey I'm trying to set up this Hermes. I can't do that facing issues could you help me out ?

[Kubernetes with Naveen 🇮🇳 @NaveenS16]

A crash course on Terraform

Ramp up on #Terraform in minutes via a lightning quick, hands-on crash course where you learn by doing.

👀https://t.co/cPpQWXybl4 #DevOps #IaC #InfrastructureasCode

[Adarsh Chetan @AdarshChetan]

Forget ChatGPT, It costs $20/M to use.

Here are 7 alternatives to you use GPT-4 for free.

Open 🧵

[Gerlyn M ☸️ @gerlyntwt]

Happy teachers day @kunalstwt 🥳🫡

[Pradumna Saraf @pradumna_saraf]

6 Must-Know Docker Commands For Efficient Operations:

[Gerlyn M ☸️ @gerlyntwt]

Understanding network namespace is made easy with @mmumshad @KodeKloudHQ so clean!

[Chris Staudinger @ChrisStaud]

How do you build resilient systems that prevent system misuse and resource overload?

There are 9 powerful techniques.

— Circuit breaker pattern
— IDS/IPS
— More...

Thousands of subscribers will learn about them tomorrow.

Join us to get the issue: https://t.co/AgyLA7vMH2

[Nikki Siapno @NikkiSiapno]

How Do Services Communicate With Each Other?

This is an important decision when designing the implementation of any multi-service architecture.

Here's a quick guide to the most commonly used techniques, use it as a starting point for your decision:

gRPC is an open-source remote procedure call framework developed by Google. It uses Protocol Buffers to define service and message types which make data compact and efficient to transmit and store. It supports bi-directional streaming and offers flow control features.

WebSockets provide a full-duplex channel over a TCP connection. They allow both the client and server to send messages to each other at the same time. WebSockets require an open connection which is more resource-intensive than stateless options.

RESTful APIs provide an interface for services to communicate with each other. It uses the standard HTTP methods GET, POST, PATCH, and DELETE. It is stateless in nature which means requests must contain all the information required to process it.

GraphQL is another API-based approach. It is a data query and manipulation language that provides a way to consolidate APIs so that services can communicate via a single API endpoint. This simplifies communication with a consistent and unified interface.

In an event-driven approach, services respond to changes in state (referred to as an event). Services send events to a message broker or an event bus which forwards the event to relevant services. This promotes loose coupling, allows services to scale independently, and improves resilience.

A service mesh adds an infrastructure layer to each service. It adds a network proxy (called a sidecar) where network traffic is routed through. Because it does this to each individual service, features such as authentication and load balancing can be done on a very granular level.

Choosing the right approach for a system can be challenging, given the many options available and their varying use cases. Understanding your system’s requirements is essential, and often the best approach requires a mix of the options above to accommodate for different components in your system.

[Gerlyn M ☸️ @gerlyntwt]

Tried to solve a bug for more than 12 hrs and finally I solved that issue by simply backspace a whitespace from it 🙂

[Gerlyn M ☸️ @gerlyntwt]

Could anybody please guide me to a better SRE ( Sute Reliability Engineer ) in 6 months. Any Suggestions?

[Gerlyn M ☸️ @gerlyntwt]

Today I have learned this, and it's quite good though 😉 https://t.co/UjJwVXN1Uc