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Scope All code must be tested. An Ansible playbook is code even though it is about infrastructure. Testing infrastructure is important in order to save time on debugging different OS servers and once you have it, CI is possible which is awesome. Using kitchen we can automate the testing of...

by hagzag
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Sonatype Nexus have gone a long way providing us DevOps with cool tools for automating probably anything you can dream of, they could do a much better job of documenting what is/isn't supported Nonetheless Nexus considering it's restful API + the great Ansible role by Samuel Hervé & great help...

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Cassandra Scheme Update In the world of RDBMS when we have a database with a scheme we have the issue of how to manage changes in the scheme. When updating our product, we also need the option to update our database scheme. For this we have tools like liquibase and...

by danh
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Calling the ansible setup module in a task is bad for you.... So I was wondering around my code trying to figure out why the Hell is Ansible deciding for me to stay sudo after I am explicitly telling him I want to be regular user. I mean really, I...

by yorammi
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I've been requested by a customer to give an introdction to DevOps. The presentation: Hello DevOps World from Yoram Michaeli Enjoy!

by hagzag
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Overview & Purpose As a preparation for running a swarm cluster in production, I needed a way to manage my Root CA and distribute the certificates between my SWARM nodes, configuring their services to use them etc etc A root CA There is a bunch of posts / articles out...

by hagzag
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This great lecture by Haggai Zagury talking about: • From development workstation(s) to * || anywhere (Docker makes it platform agnostic considering docker-machine drivers for aws, digitalocean etc etc ). •Replacing "packaging" methodology with "shipping" methodology by transforming traditional deliverables such as war / jar / rpm etc to containers...

by hagzag
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The following video which Iv'e watched severla times since it was published ~4 years ago and then looking at images such as: Figure-1:: Hadoop ecosystem Figure-2:: Docker ecosystem It's just amazing what you can do when you set your mind to ... Hope you enjoy this one as much as...

by yorammi
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RAINBOW - a Tikal's Fuse Day product During July-2016 Tikal's fuse day (which is an internal hackathon) my team developed a tool called 'RAINBOW' which suggest a docker-based solution to a common need of developers who wants to develope a tool on their own desktop/laptop but wants to test it...

by hagzag
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After having this expereince for the 3rd time in the past 18 months and I was looking for info and all I got was bits and pieces I decided to write this short post. The problem I am trying to solve is one of my colleagues changed the file permissions...