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How To Launch Kubernetes Federation on Google Cloud Platform

In this edition of our Kubernetes consulting series, we'll take you through a step-by-step to launching Kubernetes Federation on Google Cloud Platform.


What is Kubernetes Federation? It allows you to combine several Kubernetes clusters and manage them through one Control Plane. With Federation, we’re able to synchronize resources in all clusters, reduce response time for queries from different parts of the world, and achieve high availability, as we place the clusters on different continents.


In our example, we will be using Google Kubernetes Engine.

DNS

Creating zone:

$ gcloud dns managed-zones create federation \
          --description "Kubernetes Federation Zone" \
            --dns-name federation.com

Checking:

$ gcloud dns managed-zones describe federation

Output:

creationTime: '2018-08-28T10:33:49.424Z'
description: Kubernetes Federation Zone
dnsName: federation.com.
id: '8875495119636580191'
kind: dns#managedZone
name: federation
nameServers:
- ns-cloud-e1.googledomains.com.
- ns-cloud-e2.googledomains.com.
- ns-cloud-e3.googledomains.com.
- ns-cloud-e4.googledomains.com.

Clusters

Creating a cluster in Asia:

$ gcloud container clusters create asia \
            --zone asia-southeast1-a \
            --scopes "cloud-platform,storage-ro,logging-write,monitoring-write,service-control,service-management,https://www.googleapis.com/auth/ndev.clouddns.readwrite"

Output:

Creating cluster asia...⠹
kubeconfig entry generated for asia.
NAME  LOCATION           MASTER_VERSION  MASTER_IP       MACHINE_TYPE   NODE_VERSION  NUM_NODES  STATUS
asia  asia-southeast1-a  1.9.7-gke.6     35.197.139.197  n1-standard-1  1.9.7-gke.6   3          RUNNING

Getting the connection credentials:

$ gcloud container clusters get-credentials asia \
            --zone asia-southeast1-a

Output:

Fetching cluster endpoint and auth data.
kubeconfig entry generated for asia.

Defining user policy:

$ kubectl create clusterrolebinding cluster-admin-binding \
            --clusterrole cluster-admin --user $(gcloud config get-value account)

Output:

Fetching cluster endpoint and auth data.
kubeconfig entry generated for asia.

Creating a cluster in Europe:

$ gcloud container clusters create europe \
            --zone europe-west2-a \
            --scopes "cloud-platform,storage-ro,logging-write,monitoring-write,service-control,service-management,https://www.googleapis.com/auth/ndev.clouddns.readwrite"

Getting the connection credentials:

$ gcloud container clusters get-credentials europe \
            --zone europe-west2-a

Defining user policy:

$ kubectl create clusterrolebinding cluster-admin-binding \
            --clusterrole cluster-admin --user $(gcloud config get-value account)

Creating a cluster in USA:

$ gcloud container clusters create america \
            --zone us-central1-a \
            --scopes "cloud-platform,storage-ro,logging-write,monitoring-write,service-control,service-management,https://www.googleapis.com/auth/ndev.clouddns.readwrite"

Getting the connection credentials:

$ gcloud container clusters get-credentials america \
            --zone us-central1-a

Defining user policy:

$ kubectl create clusterrolebinding cluster-admin-binding \
            --clusterrole cluster-admin --user $(gcloud config get-value account)

Let’s do the same thing again for two more clusters in Europe and Asia:

$ gcloud container clusters create asia-2 \
            --zone asia-east1-a \
            --scopes "cloud-platform,storage-ro,logging-write,monitoring-write,service-control,service-management,https://www.googleapis.com/auth/ndev.clouddns.readwrite"
 
 
$ gcloud container clusters get-credentials asia-2 \
            --zone asia-east1-a
 
$ kubectl create clusterrolebinding cluster-admin-binding \
            --clusterrole cluster-admin --user $(gcloud config get-value account)
$ gcloud container clusters create europe-2 \
            --zone europe-north1-a \
            --scopes "cloud-platform,storage-ro,logging-write,monitoring-write,service-control,service-management,https://www.googleapis.com/auth/ndev.clouddns.readwrite"
 
$ gcloud container clusters get-credentials europe-2 \
            --zone europe-north1-a 
 
$ kubectl create clusterrolebinding cluster-admin-binding \
            --clusterrole cluster-admin --user $(gcloud config get-value account)

Checking after all the actions are completed:

$ gcloud container clusters list

Output:

NAME      LOCATION           MASTER_VERSION  MASTER_IP       MACHINE_TYPE   NODE_VERSION  NUM_NODES  STATUS
asia-2    asia-east1-a       1.9.7-gke.6     35.221.221.46   n1-standard-1  1.9.7-gke.6   3          RUNNING
asia      asia-southeast1-a  1.9.7-gke.6     35.197.139.197  n1-standard-1  1.9.7-gke.6   3          RUNNING
europe-2  europe-north1-a    1.9.7-gke.6     35.228.203.204  n1-standard-1  1.9.7-gke.6   3          RUNNING
europe    europe-west2-a     1.9.7-gke.6     35.242.178.241  n1-standard-1  1.9.7-gke.6   3          RUNNING
america   us-central1-a      1.9.7-gke.6     35.188.203.7    n1-standard-1  1.9.7-gke.6   3          RUNNING

Or in GCP console:

Federation

Federation Control Plane manages the state of all your clusters. The control panel can be placed inside one of your Kubernetes clusters.

Even if the Control Plane cluster does not work, the other clusters are independent, so they will continue to function until the control panel goes back online. You can manage clusters separately! This means that you do not need to worry about one point of failure.

Now let's see what contexts are used:

$ kubectl config get-contexts

Output:

          gke_federation_asia-east1-a_asia-2        gke_federation_asia-east1-a_asia-2        gke_federation_asia-east1-a_asia-2
*         gke_federation_europe-north1-a_europe-2   gke_federation_europe-north1-a_europe-2   gke_federation_europe-north1-a_europe-2

Kubernetes Federation uses the context name to create the Federation, but it must conform to the RFC1123 specification. It means that you need to rename the context. You can do this with the following commands:

$ kubectl config set-context asia \
   --cluster gke_federation_asia-southeast1-a_asia \
   --user gke_federation_asia-southeast1-a_asia
 
$ kubectl config delete-context \
            gke_federation_asia-southeast1-a_asia
 
$ kubectl config set-context europe \
   --cluster gke_federation_europe-west2-a_europe \
   --user gke_federation_europe-west2-a_europe
 
$ kubectl config delete-context \
            gke_federation_europe-west2-a_europe
 
$ kubectl config set-context america \
   --cluster gke_federation_us-central1-a_america \
   --user gke_federation_us-central1-a_america 
 
$ kubectl config delete-context \
            gke_federation_us-central1-a_america
 
$ kubectl config set-context asia-2 \
   --cluster gke_federation_asia-east1-a_asia-2 \
   --user gke_federation_asia-east1-a_asia-2
 
$ kubectl config delete-context \
            gke_federation_asia-east1-a_asia-2
 
$ kubectl config set-context europe-2 \
   --cluster gke_federation_europe-north1-a_europe-2 \
   --user gke_federation_europe-north1-a_europe-2
 
$ kubectl config delete-context \
            gke_federation_europe-north1-a_europe-2

Checking context:

$ kubectl config get-contexts

Output:

<span class="pln">CURRENT   NAME       CLUSTER                                           AUTHINFO                                          NAMESPACE
          america    gke_federation_us</span><span class="pun">-</span><span class="pln">central1</span><span class="pun">-</span><span class="pln">a_america      gke_federation_us</span><span class="pun">-</span><span class="pln">central1</span><span class="pun">-</span><span class="pln">a_america
          asia       gke_federation_asia</span><span class="pun">-</span><span class="pln">southeast1</span><span class="pun">-</span><span class="pln">a_asia     gke_federation_asia</span><span class="pun">-</span><span class="pln">southeast1</span><span class="pun">-</span><span class="pln">a_asia
          asia</span><span class="pun">-</span><span class="lit">2</span><span class="pln">     gke_federation_asia</span><span class="pun">-</span><span class="pln">east1</span><span class="pun">-</span><span class="pln">a_asia</span><span class="pun">-</span><span class="lit">2</span><span class="pln">        gke_federation_asia</span><span class="pun">-</span><span class="pln">east1</span><span class="pun">-</span><span class="pln">a_asia</span><span class="pun">-</span><span class="lit">2</span><span class="pln">
          europe     gke_federation_europe</span><span class="pun">-</span><span class="pln">west2</span><span class="pun">-</span><span class="pln">a_europe      gke_federation_europe</span><span class="pun">-</span><span class="pln">west2</span><span class="pun">-</span><span class="pln">a_europe
          europe</span><span class="pun">-</span><span class="lit">2</span><span class="pln">   gke_federation_europe</span><span class="pun">-</span><span class="pln">north1</span><span class="pun">-</span><span class="pln">a_europe</span><span class="pun">-</span><span class="lit">2</span><span class="pln">   gke_federation_europe</span><span class="pun">-</span><span class="pln">north1</span><span class="pun">-</span><span class="pln">a_europe</span><span class="pun">-</span><span class="lit">2</span>

To create a Federation we will use Kubefed. But it only works on Linux, it won’t start on Mac right away, but we can fix this with the Docker.


For authorization in Kubernetes on Google Cloud, we use google sdk. -/.kube /config:

- name: gke_krusche-federation_asia-southeast1-a_asia
  user:
    auth-provider:
      config:
        access-token: ya29.GlwHBt-fKASzD91Uxp-mtfbMMHz94w
        cmd-args: config config-helper --format=json
        cmd-path: /Users/roman/work/google-cloud-sdk/bin/gcloud
        expiry: 2018-08-28 15:03:09
        expiry-key: '{.credential.token_expiry}'
        token-key: '{.credential.access_token}'
      name: gcp

In my case, the binary file is located in my home directory, and Kubefed uses the same configuration files. Therefore, we will mount the entire home directory in the Docker container:

 

Dockerfile:

FROM centos:7
 
COPY bin/kubefed /usr/local/bin
COPY repo/kubernetes.repo /etc/yum.repos.d/
RUN mkdir -p /Users/roman \
    && yum install -y kubectl
 
ENV HOME /Users/roman
WORKDIR /Users/roman
 
ENTRYPOINT ["kubefed"]

Building Docker image:

$ docker build --no-cache --rm -t k8s/kubefed .

Defining alias:

alias kubefed='docker run -v "$HOME":/Users/roman k8s/kubefed'

Initializing Federation:

$ kubefed init kfed \
  --host-cluster-context=america \
  --dns-zone-name="federation.com." \
  --dns-provider="google-clouddns"

Output:

Creating a namespace federation-system for federation system components... done
Creating federation control plane service............. done
Creating federation control plane objects (credentials, persistent volume claim)... done
Creating federation component deployments... done
Updating kubeconfig... done
Waiting for federation control plane to come up................. done
Federation API server is running at: 104.154.131.222

Connecting clusters to the Federation Control Plane:

kubefed --context=kfed join asia \
  --cluster-context=asia \
  --host-cluster-context=america
 
kubefed --context=kfed join europe \
  --cluster-context=europe \
  --host-cluster-context=america
 
kubefed --context=kfed join america \
  --cluster-context=america \
  --host-cluster-context=america
 
kubefed --context=kfed join asia-2 \
  --cluster-context=asia-2 \
  --host-cluster-context=america
 
kubefed --context=kfed join europe-2 \
  --cluster-context=europe-2 \
  --host-cluster-context=america

Output:

cluster "asia" created
cluster "europe" created
cluster "america" created
cluster "asia-2" created
cluster "europe-2" created

Checking:

$ kubectl --context kfed get cluster

Output:

NAME       AGE
america    58s
asia       2m
asia-2     46s
europe     1m
europe-2   36s

Creating default namespace:

$ kubectl --context=kfed create ns default

Setting up and running the application

Creating a global static IP address:

$ gcloud compute addresses create ingress --global

Launching NGINX:

$ kubectl --context=kfed create deployment nginx --image=nginx:stable \
  && kubectl --context=kfed scale deployment nginx --replicas=12

Checking:

Creating NGINX Service:

$ kubectl --context=kfed create service nodeport nginx \
  --tcp=80:80 --node-port=30036

Creating file ingress.yaml:

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: nginx
  annotations:
    kubernetes.io/ingress.global-static-ip-name: ingress
spec:
  backend:
    serviceName: nginx
    servicePort: 80

Let’s deploy ingress:

kubectl --context=kfed create -f ingress.yaml

Ingress may not be created due to bugs 242 and 245.



In that case, we’ll create the balancer manually:

If everything’s ok, our NGINX should open.


Now let’s write a simple website with a world map to check the response of the clusters. You can check external IP from containers, but all of the Google IPs are American, so we’ll take the region from the cluster’s name.


Creating location.php:

<?php
$a = $_ENV[MY_NODE_NAME];
if (strpos($a, 'asia') !== false) {
  $continent = 'asia';
  $image = 'asia.png';
} elseif (strpos($a, 'europe') !== false) {
  $continent = 'europe';
  $image = 'europe.png';
} elseif (strpos($a, 'america') !== false) {
  $continent = 'North America';
  $image = 'america.png';
}
?>

Dockerfile:

FROM php:7.0-apache-stretch
ADD data /data
RUN cp -R /data/* /var/www/html \
    && chown www-data -R /var/www/html/

Building image:

docker build --no-cache --rm -t wacken/location:nodename .

Creating deployment.yaml:

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: nginx
  labels:
    app: nginx
spec:
  replicas: 20
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - env:
        - name: MY_NODE_NAME
          valueFrom:
            fieldRef:
              fieldPath: spec.nodeName
        name: nginx
        image: "wacken/location:nodename"
        imagePullPolicy: IfNotPresent
        ports:
          - containerPort: 80

Applying:

$ kubectl --context=kfed apply -f deployment.yaml

Checking

Now let’s open our balancer:

That’s it! Hurray!

 

So now we know how to setup Kubernetes Federation to reduce response time and ensure high availability of services. For more on Kubernetes setup you can also check out our step-by-step guide to How to Setup Kubernetes cluster on AWS.


If your organisation has a need Kubernetes consultancy or development resources please don't hesitate to get in touch. K&C is one of Munich and Germany's most trusted IT services providers with over 20 years of experience. We work with some of Europe's best known brands, exciting start-ups and ambitious SMEs.

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Digital Transformation: the Philosopher’s Stone of Economic Growth
Web,Outsourcing,Other
Angular 5 VS React.js – Who’s Going to Set the Tone in the Upcoming Year?
Web
Agile and DevOps are Key Drivers of Digital Transformation
Web
K&C insights: how to make your workflow work for you
Web,Other
GoLang: Features, Pros and Cons
Our cases
Reference: Major producer of auto electronics and spare parts
DevOps
Hybrid, SAAS+PAAS: cloud solution trends to watch in 2019
Web,Outsourcing,Other
Angular vs. React vs. Vue – Let the Fight Start!
DevOps
DevOps with Puppet: Tips on Setting it up for Configuring Servers
Web,Outsourcing,Other
JS Frameworks: The Trendiest Frameworks You Should Know
Our cases
Micro-service Architecture for New AngularJS Application - Case Study
Mobile
Native or Hybrid Apps: A Quick Comparison
DevOps
Installation and setting up: Nextcloud as a local network storage on CentOS7
Web
Centralized Logging with Logstash, Elasticsearch & Kibana
Web
A Guidance for Keeping Your Web Development Project Within the Budget: Three Key Pillars
Web
Plan to Succeed: 4 Tips for Building Scalable Software
Web
Microservices… when do we need them?
Web
Debunking imaginary shortcomings of cross-platform frameworks
Our cases
Portal Performance Tuning For Major German Travel Agency
Web
Technologies that Foster Digital Transformation
Web,Other
How to Make Your Web Solution Rock: 7 Areas to Check
Web
4 Time-Saving Ways to Test Your Cross Platform Mobile App
Web,Outsourcing,Other
Angular 5.0.0 – A Better Version of Itself
E-book
Top Tools for Cost-Effective Web Development — eBook
Web
A secret formula of an agile dream team
Web,Amazon Web Services
CLOUD DEPLOYMENT: YOUR APPLICATION’S OPTIONS
Web
How to Motivate Your Dedicated Team to Work with Legacy Projects
Web,Our cases
White Label: A Customized Software Solution from a Business and Tech Perspective
Web
Cost efficient technologies
Web
Scaling software solutions - how it works
DevOps
How to setup Kubernetes cluster on AWS
DevOps
Docker: Virtualize Your Development Environment Right
Web
When Microservices Help Make Future-Ready Products
Outsourcing,Other
How to Ramp up Your Team Wisely
Outsourcing,Testing
How the QA Team Tests Your Project
DevOps
How We Manage Our Infrastructure with Chef
Our cases
Reformation of Deployment Cycle for Bosch Classic Cars Portal
Our cases
Fast and Lightweight Mobile Application based on PhoneGap/ Cordova
Our cases
Drivelog.de — Web Marketplace for Car Owners and Service Providers
DevOps
Use case: how to build and run Docker containers with NVIDIA GPUs
DevOps
How We Use Ansіble for Configuration of Our Environments
Web
Angular 2.0 vs Angular 1.4. What fits you best?
Other
Big Data: Why Your Business Needs it ASAP
Web,Outsourcing,Other
How a Company Can Benefit from White Label: K&C experience
DevOps
How to Build a Rancher & Docker Based Cloud
DevOps
Setting Up: Traefik Balancer In Rancher Cloud
E-book
Determining Approaches to Mobile App Development
Web,Other
Dedicated Teams for Web Development: Choice Criteria to be Checked
Web
Angular 4 vs React – what to choose in 2017
Outsourcing
The BPM in the Microservice Environment
DevOps,Outsourcing,Other
ROCKET.CHAT as an internal messaging system and helpdesk platform
DevOps
Monolith, Microservices, Serverless... Which Will You Choose and Why?
Web
JQuery vs. Angular: Ad Astra per Aspera
DevOps
How to start services on Linux
Web
Advanced Technologies for Marketing Automation
Web,Outsourcing
Node.js vs. Angular.js – Two Sides of the Same Coin
DevOps,Outsourcing
AWS DevOps: A New Way to Run Business
Web,Amazon Web Services
Vue.js 2019 - not Angular / React
Web,Outsourcing
Migration from Angular 1 to Angular 5
DevOps,Outsourcing,Amazon Web Services
Information Security with AWS DevOps
Other
Europe’s Big Payments Directive PSD2
Our cases
The Platform Providing Event Organization
Web,Outsourcing,Other
Golang vs. Node.js
Our cases
VAIX - Fault tolerant infrastructure for 24/7 high-load machine learning service
Web,DevOps,Our cases
Our case: Marketplace for gaming goods
Web,Outsourcing
Angular 6 Will Be A Hit
Web,Outsourcing,Testing
Web App Security 101: Keep Calm and Do Threat Modeling
Web,Mobile,Outsourcing,Other
All You Wanted to Know About Chatbot Platforms
Web,Amazon Web Services
What's New In React 16.3.0 - 16.4.2 | K&C React Dev
Web,Outsourcing
ANGULAR 6 versus REACT 16.3
Other
GDPR: Smart Practices
Web
Fintech Apps - A Lucrative Solution for Customers and Businesses Alike
Other
Swimming with Sharks
Web
Node.js 10.0.0: Everyone’s Favorite Got Even Better
DevOps,Outsourcing
Rancher 2.0: A Quick Look at the New Version
Our cases,Amazon Web Services
CLOUD SOLUTION VS. BARE METAL SERVER: WHEN AND WHY
Other
I’m Tired of Blockchain Hype, Are You?
Web,Mobile,Outsourcing
Progressive Web Apps and Why You May Need Them
Other
Don’t Treat Me Like a Fool: The worst thing you can do for your business
Web
Web App Security 101: How to Defend Against a Brute Force Attack
Other
How to Convert Your Business to an Amazon-Style Market Leader
Web,Outsourcing,Other
JavaScript & WebSockets: How to Build Real-Time Applications
Other
Culture eats technology for breakfast
Web,Outsourcing
How to Control Agile Development: Progress and Costs
Marketing
Аudience-based Marketing
Other,Marketing
How to Become a Leader in Your Market
Web,Other
SSR or CSR for Progressive Web App
Web,Outsourcing
Angular 6 vs. Ember 3
Outsourcing
SCALED AGILE FRAMEWORKS: YOUR COMPLETE GUIDE TO WHICH, WHY AND HOW
DevOps
Security in Kubernetes and How Your Company Can Benefit from It
DevOps
DevOps As DevSecOps – Full Integration of Threat Protection Without Compromising Deadlines or Budgets
Web,Other
JAMSTACK IS THE NEW FACE OF STATIC SITES
DevOps
Guide for Hashicorp Consul/Vault with Kubernetes
Testing
What Is Quality Assurance and Why You Need It Immediately
DevOps
DEBUGGING AWS LAMBDA FUNCTIONS
Other
The Power of the Holistic Business Analysis
Other
Angular vs. Vue vs. jQuery vs. React vs. Ember
DevOps
Kubernetes backup with Heptio Ark (Velero)
DevOps
What to Choose: NFS or CEPH?
Web,Mobile,Back-end,Amazon Web Services
Serverless Architecture for Modern Apps: Stacks Providers & Caveats
Web,Mobile,Back-end,Amazon Web Services
Why Enterprises Choose Serverless Architecture
DevOps,Amazon Web Services
Kubernetes at the Forefront of Secure Microservices Future
Web
All You Need to Know About Web App Security Now
Web,Outsourcing,Testing
QA for CxOs: How to Hire and Outsource
Web,Amazon Web Services
ANGULAR 7 OR REACT For Your App?
Web,Outsourcing,Testing
Sicherheit für Web-Anwendungen - dank Threat Modeling
Outsourcing,Testing
Die Rolle des QS-Teams in Software-Projekten
Outsourcing
Agile entwickeln mit festen Budgets | K&C Software München
DevOps
KUBERNETES-BERATUNG: SCHRITT FÜR SCHRITT ZUM HEPTIO ARK (VELERO) BACKUP
DevOps,Outsourcing
KUBERNETES ALS FÜHRENDE MICROSERVICE-ARCHITEKTUR IN PUNCTO SICHERHEIT
Outsourcing,Amazon Web Services
FUNKTIONEN VON AWS LAMBDA DEBUGGEN
Web,Mobile,Amazon Web Services
SERVERLOSE ARCHITEKTUR FÜR CLOUD-BASIERTE APPS: TECHNOLOGIE-ANBIETER UND GRENZEN
DevOps
DevOps als DevSecOps – Integrierter Schutz vor Bedrohungen ohne Termin- und Budgetüberschreitung
Web,Mobile
Wann eignen sich Progressive Web Apps ?
Amazon Web Services
Auswahl Cloud-Provider ohne Vendor Lockin
DevOps
Cloud-Trends 2019 - Hybrid, SAAS und PAAS | K&C Beratung
Our cases
CLOUD-LÖSUNG VS. BARE METAL SERVER: WANN MACHT WELCHER ANSATZ SINN?
Outsourcing
SCALED AGILE FRAMEWORKS: HINTERGRÜNDE UND AUSFÜHRLICHER LEITFADEN
Amazon Web Services
Hybrid Cloud Consulting Services in Munich
Web,Amazon Web Services
Your Expert Angular Developers in Munich | K&C Development
Web,Amazon Web Services
React Developers Munich
DevOps
Kubernetes-Cluster absichern mit Hashicorp Consul/Vault
DevOps
DevOps Consulting – Our Business Is Automating Yours
DevOps
Serverless Architecture Consulting Services
DevOps
Is Serverless Architecture the Future of Web Development?
DevOps
Your DevOps Transformation Consulting Partner
Testing
Test Automation Case Study: Cucumber, Selenium and Jira Xray
Testing
Agile Test Coach - Ensuring Code Quality & Transparency
Testing
Qualität + Transparenz durch Agile Test Coaches
Other
ANGULAR, VUE, JQUERY, REACT ODER EMBER?
Web
Pros and Cons of Serverless Web Development
Web,Amazon Web Services
Your Guide To AWS Cognito For Serverless User Authentication
Web
Serverless Application Developers: Our Tech Talent, Your Success
Web
Why Serverless Development For Start-Ups: Lower Costs, Faster to Market
Web,Amazon Web Services
Vorteile durch Serverless Development für Startups: niedrigere Kosten, kürzere Time-to-Market
Web,Amazon Web Services
Serverless vs. Hadoop & Containers In The Evolution Of Big Data & AI
DevOps
Kubernetes Consulting – Take Control of Your K8s!
Testing
Fallstudie Testautomatisierung: Cucumber, Selenium und Jira Xray
DevOps
Kubernetes Beratung – Übernehmen Sie die Kontrolle über Ihre K8s!
DevOps
Ist serverlose Architektur die Zukunft der Webentwicklung?
DevOps
Serverless Providers: A Comparative Analysis of AWS Lambda, Azure Functions & Google Cloud Functions