Tag: linux

  • Automated Deployment Pipeline 1 of 3

    The business case You launched a software application. You installed it on two customer sites. You support the application mostly by SSH to customer server…

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  • Log file navigator (lnav)

    I’ve used a number of log viewers in command terminal, on MacOS and Linux server. I read system logs, log4j formats, as well as json…

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  • Host legacy application in Docker 1 of 2

    This is my notes from containerizing a legacy application with Docker compose. We have to run multiple instances of our application because we’re unable to…

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  • Zookeeper Summary

    Distributed systems Distributed system involves independent computing entities linked together by network. The components communicate and coordinate with each other to achieve a common goal.…

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  • Virtualization 4 of 4 – Networking

    Virtual LAN (VLAN) Although VLAN emerged before virtualization and is technically not part of virtualization topic. I’d just like to start from here as a…

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  • Virtualization 3 of 4 – Containers

    In broad terms, virtualization of computing resource is about isolation of resources at different levels. We have covered hypervisor-based virtualization in the other post. In…

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