blog cover opentracing jaeger

What (the hell) was my app doing: First steps with Opentracing and Jaeger

Try to Google a bit and find some blog posts about adoption of microservices, Docker, Kubernetes and other “new” stuff in the traditional environments. Almost every post is like “yeah, microservices are kinda cool, but monitoring and overall observability is very challenging.”

Well, that’s not true anymore. And today I’m gonna show you one important pillar of this shift from “challenging” to “absolutely possible.” Please make some noise for the technology which can’t be missing in your microservice stack – distributed tracing.
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Štěpán Vraný

Štěpán Vraný

DevOps Engineer

blog cover Gitlab CI

Is Jenkins still the only choice in 2019? What about Gitlab CI?

As we’ve shared in our previous DevOps posts, we mainly use Jenkins for our common CI and CD tasks. Nowadays, Jenkins is still industry standard, there are heaps of resources tutorials and Stackoverflow threads about (almost) every conceivable issue. I’ve written “almost” back there, I know. Well, sometimes you have to dive in to Java code and figure out what the hell that XYZ plugin actually does. And things can get messy. But enough of complaints.

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Štěpán Vraný

Štěpán Vraný

DevOps Engineer

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Interacting with the Tezos blockchain on iOS: Part 1

Interacting with the Tezos blockchain on an iOS device should be an easy task. With TezosSwift, we at Ackee are working to accomplish that goal. TezosSwift has been built with type-safety in mind and implements most of what you could possibly need for Tezos development on iOS. Parts of this tutorial are also applicable to Keefer Taylor’s TezosKit, a library that TezosSwift is based on.

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Marek Fořt

Marek Fořt

iOS Developer

Cypress – testing web applications with ease

Jest, Mocha and Chai are among the most known tools for React testing (and Javascript in general) of applications. In Ackee we use Jest for unit test and integration testing. However, when it comes to testing more complex functionalities, working with Jest is not always easy. When integrating many application parts in your tests you must often deal with complex setup of a test environment, mocking modules/functions and handling of asynchronous events. That is the reason I decided to try the testing tool Cypress which our colleague Lukáš heard about at the Reactive Meetup in Pardubice and I would like to share my experience in this article.

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Jiří Zdvomka

Jiří Zdvomka

Frontend developer