Posts about Cloud

Read How we build the Image Gallery on trivago
Engineering Backend Cloud

How we build the Image Gallery on trivago

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When was the last time you booked accommodation without checking its photos? Most probably never! Because having imagery information makes our decision-making process much easier and faster. However, picking up the best possible images of a hotel to show to the user is an interesting problem to solve, because it can be a naive random selection or a sophisticated machine learning model to know what the user truly wants at that moment.

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Read Proper (Java) application life cycle management in Kubernetes
Backend DevOps Cloud Java

Proper (Java) application life cycle management in Kubernetes

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When operating applications in Kubernetes, proper lifecycle management is crucial to enable Kubernetes to manage applications correctly throughout their different phases: startup, runtime and shutdown. Improper or incomplete lifecycle management can lead to incidents with unforeseen and difficult to debug application behavior, such as random CrashLoopBackOffs, broken/zombie services not being restarted or even entire services not becoming healthy after a scheduled restart. Based on both good and bad applied practices in trivago’s search backend, this article outlines key aspects for lifecycle management of our Java applications running inside docker containers on Kubernetes.

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Read Google Cloud Workload-Placement-Guide
Cloud Devops Backend

Google Cloud Workload-Placement-Guide

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At trivago we operate a hybrid infrastructure of both on-premise machines and clusters on Google Cloud. Over time, we came up with a set of deployment guidelines for running our workloads as more and more of them are migrating to Google Cloud. These are not strict rules, but rather suggestions to best serve each team’s needs. Teams are meant to have full control over their workloads, but most of the time they “just want to run things” and do not have the time or resources to care much about managing the underlying infrastructure.

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Read Cross-Cluster Traffic Mirroring with Istio
Backend Cloud Devops

Cross-Cluster Traffic Mirroring with Istio

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The price of reliability is the pursuit of the utmost simplicity. — C.A.R. Hoare, Turing Award lecture Introduction Have you ever enthusiastically released a new, delightful version to production and then suddenly started hearing a concerning number of notification sounds? Gets your heart beating right? After all, you didn’t really expect this to happen because it worked in the development environment. This “But it worked in the development environment!

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Read trivago joins the Cloud Native Computing Foundation
Open Source Cloud Devops

trivago joins the Cloud Native Computing Foundation

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“The Cloud Native Computing Foundation (CNCF) hosts critical components of the global technology infrastructure. CNCF brings together the world’s top developers, end users, and vendors and runs the largest open source developer conferences. CNCF is part of the nonprofit Linux Foundation.” - CNCF Last year, when visiting CloudNativeCon/KubeCon Europe in Barcelona (one of the biggest cloud-focused conferences in Europe), I noticed that there were some companies present in the exhibition space whose primary focus wasn’t software development.

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