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Vault – Use cases

This blog is a continuation of my previous blog on Vault. In the first blog, I have covered overview of Vault. In this blog, I will cover some Vault use cases that I tried out. Pre-requisites: Install and start Vault I have used Vault 0.6 version for the examples here. Vault can be used either in development … Continue reading Vault – Use cases →

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Vault Overview

I have always loved Hashicorp’s Devops and cloud tools. I have used Vagrant, Consul, Terraform, Packer and Atlas before and I have written about few of them in my previous blogs. Vault is Hashicorp’s tool to manage secrets securely in a central location. Secret could be database credentials, AWS access keys, Consul api key, ssh … Continue reading Vault Overview →

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Docker for AWS – Deployment options

In this blog, I will cover 5 different options to deploy Docker Containers in AWS infrastructure. There are pros and cons of each option and the goal in this blog is not to suggest that some options are better than others, but to highlight the suitable option for a particular use case. I have taken a … Continue reading Docker for AWS – Deployment options →

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AWS ECS – Docker Container service

In this blog, I will cover AWS ECS Docker Container service. ECS is an AWS product. This blog is part of my Docker for AWS series and uses the sample voting application for illustration. AWS has EC2 Container service(ECS) for folks who want to deploy Docker containers in AWS infrastructure. For basics of AWS ECS, … Continue reading AWS ECS – Docker Container service →

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Docker Datacenter for AWS

In this blog, I will cover Docker datacenter usage with AWS. This blog is part of my Docker for AWS series and uses the sample voting application for illustration. Docker Datacenter is Docker’s enterprise grade CaaS(Container as a service) solution where they have integrated their open source software with some proprietary software and support to make … Continue reading Docker Datacenter for AWS →

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Docker Cloud for AWS

In this blog, I will cover Docker cloud usage with AWS. This blog is part of my Docker for AWS series and uses the sample voting application for illustration. Docker cloud is a hosted service from Docker to manage Containers. Docker cloud is free to try for 1 private repository and node and is chargeable … Continue reading Docker Cloud for AWS →

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Docker for AWS beta

In this blog, I will cover “Docker for AWS” beta service launched by Docker. This blog is part of my Docker for AWS series and uses the sample voting application for illustration. As part of Docker 1.12 announcement, Docker released AWS Docker integration as beta software. With this software, Docker is trying to  simplify AWS … Continue reading Docker for AWS beta →

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Docker-machine for AWS

In this blog, I will use docker-machine to deploy and manage Containers in AWS cloud. This blog is part of my Docker for AWS series and uses the sample voting application for illustration. Docker-machine has EC2 driver for creating a Docker node out of AWS. Docker node in this context means a AWS VM instance with … Continue reading Docker-machine for AWS →

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Service Discovery and Load balancing Internals in Docker 1.12

Docker 1.12 release has revamped its support for Service Discovery and Load balancing. Prior to 1.12 release, support for Service discovery and Load balancing was pretty primitive in Docker. In this blog, I have covered the internals of Service Discovery and Load balancing in Docker release 1.12. I will cover DNS based load balancing, VIP … Continue reading Service Discovery and Load balancing Internals in Docker 1.12 →

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Comparing Swarm, Swarmkit and Swarm Mode

One of the big features in Docker 1.12 release is Swarm mode. Docker had Swarm available for Container orchestration from 1.6 release. Docker released Swarmkit as an opensource project for orchestrating distributed systems few weeks before Docker 1.12(RC) release. I had some confusion between these three projects. In this blog, I have tried to put … Continue reading Comparing Swarm, Swarmkit and Swarm Mode →

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Docker Security presentation at Bangalore meetup

This link captures the slides on “Docker Security Overview as of release 1.12” that I presented at Docker Meetup, Bangalore on July 9, 2016.

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Mesos DC/OS Hands-On

In this blog, I will cover some of the hands-on stuff that I tried with Opensource DC/OS. I created DC/OS cluster using Vagrant and deployed multi-instance nginx webserver using Marathon. For Mesos FAQ, please refer to my previous blog. I followed the instructions here to create DC/OS Vagrant cluster. Pre-requisites I tried DC/OS Vagrant cluster … Continue reading Mesos DC/OS Hands-On →

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Mesos and Mesosphere – FAQ

The most popular Container Orchestration solutions available in the market are Kubernetes, Swarm and Mesos. I have used Kubernetes and Swarm, but never got a chance to use Mesos or DC/OS. There were a bunch of questions I had about Mesos and DC/OS and I never got the time to explore that. Recently, I saw the … Continue reading Mesos and Mesosphere – FAQ →

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Looking inside Container Images

This blog is a continuation of my previous blog on Container standards. In this blog, we will look inside a Container image to understand the filesystem and manifest files that describes the Container. We will cover Container images in Docker, APPC and OCI formats. As mentioned in previous blog, these Container images will converge into … Continue reading Looking inside Container Images →

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Container Standards

In this blog, I will cover some of the standardization effort that is happening in the Containers area. I will cover some history, current status and also mention how the future looks like. In the next blog, we will look inside ACI and OCI Container images. Container Standards Lot of developments in Container area are done … Continue reading Container Standards →

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Docker 1.11 release presentation at Bangalore meetup

This link captures the slides on Docker release 1.11 release that I presented at Docker Meetup, Bangalore on June 4, 2016.

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Docker macvlan and ipvlan network plugins

This is a continuation of my previous blog on macvlan and ipvlan Linux network drivers. Docker has added support for macvlan and ipvlan drivers and its currently in experimental mode as of Docker release 1.11. Example used in this blog In this example, we will use Docker macvlan and ipvlan network plugins for Container communication … Continue reading Docker macvlan and ipvlan network plugins →

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Macvlan and ipvlan in CoreOS

This is a continuation of my previous blog on macvlan and ipvlan Linux network drivers. In this blog, I will cover usage of macvlan and ipvlan network plugins with CoreOS Rkt Container runtime and CNI(Container network interface). Rkt and CNI Rkt is another Container runtime similar to Docker. CNI is Container networking standard proposed by … Continue reading Macvlan and ipvlan in CoreOS →

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Macvlan and IPvlan

Macvlan and ipvlan are Linux network drivers that exposes underlay or host interfaces directly to VMs or Containers running in the host. In this blog, I will cover basics of macvlan and ipvlan, compare macvlan and ipvlan to Linux bridge and sub-interfaces and also show how to create these interfaces in Linux system. In the … Continue reading Macvlan and IPvlan →

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Experimental Docker with Docker machine

Docker Experimental channel is used to release experimental Docker features so that Docker users can try the new features and provide feedback.  It is nice to use the experimental Docker in a test environment rather than upgrading Docker in the main development machine. The preferred approach is to use docker-machine and create a VM with experimental Docker. … Continue reading Experimental Docker with Docker machine →