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

CI/CD with Jenkins pipeline on Google Kubernetes Engine

We have almost 50 developers working with different technologies to develop, test and ship apps for our demanding clients. With multiple git pushes and merge requests per hour there is a need for fast and optimized flow. Automating the CI/CD with multiple technologies and clouds/other deployment targets is critical for us. This is how we use powerful Jenkins Pipeline with Shared Pipeline Library with Jenkins and Gitlab.

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Marek Bartík

Marek Bartík

DevOps Engineer

Amazon RDS vs. Google SQL benchmark

We have tested two database-as-a-service solutions from two major players: Google Cloud SQL Second Generation, Amazon RDS for MySQL and official MariaDB Docker container running as a single instance without any replication on Google Container Engine. MariaDB was used in the test as a baseline, only to see if there is any significant performance overhead of replication and the difference between MySQL and MariaDB. What are the benchmark results?

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Marek Bartík

Marek Bartík

DevOps Engineer