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Monday, July 30, 2018

RunC - Container Tool

RunC RunC is a Command line tool for spawning and running containers according to the OCI specification.This is a docker container format and runtime that is being donated to the OCI. What is a OCI? Open Container initiative defines specifications for building tools that help in building, transporting and preparing container images...
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Friday, July 20, 2018

Kubernetes Volumes

There will be always cases where we need to save data on to a drive or disk. Containers when stopped will destroy the data stored inside the container. Kubernetes provides us a way to manage storage for containers. Kubernetes uses volumes for adding additional storage to the pods. In this article we will see how we can create volumes...
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Union File System for Containers

As we all know that container are run from image which are layers. The Implementation is based on Union file systems. UnionFS is a file systems that operate by creating layers making them very lightweight and fast. There are multiple implementations of UnionFS like AUFS, btrfs , vfs and device mapper. Basically union mounting is a way of combining multiple directories into one that appears to contain their combined contents....
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Docker with Ansible

Ansible as we know is one of the best automation tools available now and docker is the industry leading container framework. In this article we will see how we can integrate ansible and docker. We will see how we use ansible to create docker containers. Install the necessary packages for using docker with ansible. The docker-py package is required for playing with docker using ansible. To install this package we will use the...
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Thursday, July 12, 2018

Name Spaces

With the advent of containers , it is very easy to isolate linux process into their own little environments. By this we run a whole range of applications on a single linux Machine where each container works independently. No two containers will interfere each other. But how does this happen?, what happens under the hood? There are many libraries and components from Linux kernel that are used while working with containers....
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