/SyntaxLexx

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[/SyntaxLexx @SyntaxLexx]

@Itsadiee1 Damn October

[Kanyon Sosyal @sosyalkanyon]

Messi ile Ronaldo arasındaki farkı tek bir videoyla anlatmak mümkün.

[Kai Lentit (e/xcel) @KaiLentit]

PHP defenders right now.

[/SyntaxLexx @SyntaxLexx]

@Mlia_CFA Hooolddddding....

[/SyntaxLexx @SyntaxLexx]

@supabase Last

[Dhanian 🗯️ @e_opore]

SERVICES IN KUBERNETES EXPLAINED

Think of a Kubernetes Service as a reception desk for a company.

Pods are constantly being created, destroyed, and replaced. Their IP addresses can change. The Service provides a stable address that clients can use to reach the right Pods.

WHAT IS A SERVICE

→ a Service is a Kubernetes networking object

→ provides a stable network endpoint for a group of Pods

→ routes traffic to healthy Pods

→ hides the changing IP addresses of individual Pods

→ makes applications discoverable inside or outside the cluster

WHY SERVICES EXIST

→ Pods are temporary

→ Pod IP addresses can change

→ a client should not need to track individual Pods

→ Service provides a stable virtual IP and DNS name

→ traffic is automatically routed to matching Pods

HOW A SERVICE WORKS

→ application Pods are running

→ Pods have individual IP addresses

→ Service selects Pods using labels

→ client sends request to Service

→ Service identifies matching Pods

→ traffic is forwarded to one of the Pods

SERVICE ARCHITECTURE

→ Client

→ Service

→ Selector

→ Pod 1

→ Pod 2

→ Pod 3

→ the Service acts as the stable entry point

SERVICE SELECTORS

→ Services use labels to identify Pods

→ example

→ app=backend

→ Service searches for Pods with matching labels

→ matching Pods become Service endpoints

→ traffic is distributed among them

SERVICE DISCOVERY

→ Kubernetes automatically provides DNS names for Services

→ example

→ backend.default.svc.cluster.local

→ applications can communicate using the Service name

→ no need to hard-code Pod IP addresses

CLUSTERIP SERVICE

→ default Service type

→ exposes application inside the Kubernetes cluster

→ receives a stable internal IP

→ accessible by other Pods and Services

→ ideal for internal APIs and databases

NODEPORT SERVICE

→ exposes a Service through a port on each Node

→ external traffic reaches:

→ Node IP + NodePort

→ Kubernetes forwards traffic to the Service

→ useful for basic external access

LOADBALANCER SERVICE

→ provisions an external load balancer when supported by the environment

→ provides an externally reachable IP or hostname

→ traffic flows:

→ Internet

→ Load Balancer

→ Service

→ Pods

→ commonly used for public applications

EXTERNALNAME SERVICE

→ maps a Kubernetes Service to an external DNS name

→ does not create a normal proxy endpoint

→ useful when applications need to reference an external service through a Kubernetes Service name

HEADLESS SERVICES

→ created by setting:

→ clusterIP: None

→ no virtual ClusterIP is assigned

→ DNS returns individual Pod addresses

→ commonly used with StatefulSets

→ allows clients to communicate directly with specific Pods

SERVICE LOAD BALANCING

→ multiple Pods receive traffic

→ Service distributes requests among available endpoints

→ example

→ Client

→ Service

→ Pod 1

→ Pod 2

→ Pod 3

→ if a Pod becomes unavailable

→ it is removed from the active endpoints

SERVICE + DEPLOYMENT

→ Deployment manages Pods

→ Service exposes Pods

→ Deployment creates and replaces Pods

→ Service provides stable networking

→ together they create a reliable application architecture

SERVICE + STATEFULSET

→ StatefulSet provides stable Pod identities

→ Service provides networking

→ Headless Service allows direct DNS-based discovery

→ commonly used for databases and distributed systems

COMMON SERVICE TYPES

→ ClusterIP

→ internal cluster access

→ NodePort

→ exposes through Node ports

→ LoadBalancer

→ external load balancer

→ ExternalName

→ maps to external DNS

→ Headless Service

→ direct Pod discovery

COMMON SERVICE PROBLEMS

→ Service has no endpoints

→ selector does not match Pod labels

→ Pods are not Ready

→ incorrect targetPort

→ incorrect Service port

→ NetworkPolicy blocks traffic

→ DNS resolution problems

BEST PRACTICES

→ use meaningful labels

→ verify selectors match Pods

→ use readiness probes

→ avoid exposing internal services unnecessarily

→ use ClusterIP for internal communication

→ use LoadBalancer or Ingress for appropriate external traffic

→ monitor Service endpoints

REAL WORLD ANALOGY

→ Kubernetes cluster = company

→ Pod = employee

→ Service = reception desk

→ Service IP = company phone number

→ Service selector = department directory

→ LoadBalancer = public entrance

→ Headless Service = direct employee directory

END TO END FLOW

→ client sends request

→ request reaches Service

→ Service checks matching endpoints

→ healthy Pod selected

→ request forwarded to Pod

→ Pod processes request

→ response returns through the Service

KEY IDEA

→ Pods are temporary

→ Pod IPs can change

→ Services provide stable networking

→ Services discover Pods

→ Services route traffic

→ Services make Kubernetes applications easier to connect and scale

Grab KUBERNETES EBOOK:
https://t.co/1JQaCCc17i

[Lovable @Lovable]

We just raised $400M at a $13.3B valuation to help you achieve more than you ever thought you were capable of.

[ThePrimeagen @ThePrimeagen]

Did you know that creator of the Morris Worm, Robert Tappan Morris, spent 3 years on probation. Later creating a small company that sold to Yahoo (with Paul Graham). Morris later cofounded ycombinator, a worm for startups

that guy loved creating worms...

[/SyntaxLexx @SyntaxLexx]

@ThePrimeagen Yes... He's now living his Sakamoto Days

[/SyntaxLexx @SyntaxLexx]

@ThePrimeagen But... Has Prime shipped anything yet since Netflix? Hmmm 🤔 😅

[Troll Football @TrollFootball]

End of an era

[FOX Sports @FOXSports]

All three of Leo Messi's goals in his first career FIFA World Cup hat trick

[sunnyson @sunnysonx]

@theo i miss when viruses just made the mouse move weird

[/SyntaxLexx @SyntaxLexx]

@rickasaurus @ThePrimeagen Booring! "Get this dude outta here!"

[/SyntaxLexx @SyntaxLexx]

@KaberiaCommoner @okjared1 Halftime score: 2-1

Waiting for full time results 😂

[Karweni @krwni4]

@georgediano

[Xavier Kara @parody_xavier]

@wallstengine

[/SyntaxLexx @SyntaxLexx]

@laravelbackpack Even better, use some form of DTO. Your future self will thank you

[Dan Price @DanPriceSeattle]

It’s been 10 years since I took a million dollar pay cut to pay all staff at Gravity Payments a $70,000 minimum wage. People have wondered: How did it go?

We conducted a comprehensive study of everything that has happened since our 2015 announcement.

We are proof that paying living wages is good for both employees and businesses.

Since raising wages, our revenue and profits have soared, employees have started families while continuing to provide excellent customer service, and clients have become happier and stayed longer.

It worked so well that we raised the minimum to $80,000 and added an employee profit-sharing program.

Yet outside our company, it made no impact: no businesses followed suit, and the pay gap between workers and CEOs remains massive.

[nunomaduro @enunomaduro]

just released pest v4.6.0 with time-balanced sharding

this was a long-time request from the @laravelphp cloud team; with around 15,000 tests, browser tests and other slow ones need to be spread evenly across all shards

fucking dope