Tag Archives: docker

Docker Global Mentor Week 2016 – Kanpur

Docker Mentor Week 2016 - Kanpur

I have not been blogging quite often but you must have guessed from my posts that I love Docker. It’s beautiful piece of technology which comes with a lot of great tooling for developers, devops and infrastructure administrators.

I am Docker Kanpur Meetup Group organiser. We are organising Docker Global Mentor Week in Kanpur on November 18, 2016.

If you are from Kanpur or around (Lucknow, Unnao, etc.), please do join the meetup group, and participate in this and future events. It’s lot of learning, and fun to be at meetups.

For your convenience, I am embedding event information below even though it’s available on meetup page. RSVP is must, and we only have space for 20 people. Please confirm it on meetup page.

I look forward to meeting you at the event. Let’s make it fun and successful.


Join us for our Kanpur edition of the Docker Global Mentor Week!

Docker Global Mentor Week is your opportunity to #learndocker. Right now, Docker is working on self paced online labs that will be available through LearnDot. One lab will be for beginners and one lab will be for intermediate users. Docker mentors will be on hand at this event to help you as you work through the self paced materials.

Are you an advanced user? We strongly encourage Docker users of all skill levels to attend! We need a network of mentors who understand the Docker platform to answer any questions that newcomers may have. Click here to sign up as a mentor.

Agenda: November 18, 2016

  • 16:00 – Doors Open
  • 16:15 – Welcome message, presentation of Docker & snacks
  • 16:30 to 18:30 – Select and work through self-paced lab
  • 18:30 – Socializing

As we get closer to the event, we will share more information including materials on how to prepare for the training.

Pre-Event Set-up

At the training, you will need to bring your own computer. Before you go to a mentoring event, there are some steps you should do some preparation to get your work environment ready. This will help get ready for the tutorial, and also save on bandwidth at the event venue. Here are the steps:

Set-up Docker on your machine

For Linux users, we need you to install Docker engine and Docker compose. Make sure you have Docker compose version 1.6 or higher by running docker-compose version from the command prompt.

For Mac users, install Docker for Mac or if you have an older Mac, Docker Toolbox.

For Windows users, if you have Windows 10 pro install Docker for Windows, otherwise install Docker Toolbox.

If you are a Docker for Windows user and want to try the new Windows containers, you need to have fully updated your machine. To prepare to use Windows containers,

Go through the setup steps in the Windows Container lab.

In Powershell run
docker pull microsoft/windowsservercore:latest
This will take awhile, but it is essential you do this before going to the venue. The Windows base image is a 3 gig download.

If you’re new to Docker, pre-pull the docker images for the very basic tutorial
  • docker pull hello-world
  • docker pull alpine
  • docker pull seqvence/static-site
To run the application and participate in the rest of the training, pre-pull these images
  • docker pull microsoft/dotnet:1.0.0-preview1
  • docker pull node:5.11.0-slim
  • docker pull python:2.7-alpine
  • docker pull redis:alpine
  • docker pull postgres:9.4
For the orchestration part, you will want to pre-build the demo app by running the following steps
  • git clone git://github.com/jpetazzo/orchestration-workshop
  • cd orchestration-workshop/dockercoins
  • docker-compose build

Venue:

Allies Interactive
18/179, 3rd Floor
Above Karur Vyasya Bank,
Next to Hotel Geet or Akashdeep,
The Mall (Phoobagh), Kanpur-01
Phone: +91 512 2351352

Docker PaaS and Resources

I found about this public Trello board which offers curated list of Docker PaaS systems (public, private), deployment tools, and many other related resources.

During last couple of years, I have tried most of Docker PaaS (private self-hosted) for development and some production load (microservices).

I have enjoyed using following, and continue to use them for various things (development, production):

I hope to share my experiences, and examples (projects, services — running in production) soon.

Docker Awesome

I love these *-awesome projects on Github.

The Docker Awesome is all about Docker and it’s ecosystem. Hundreds of curated links help you understand Docker, and it’s fast growing ecosystem.

If you think something is missing there, go ahead and add to README.md or send a PR to github.com/veggiemonk/awesome-docker/

BTW! There is another awesome project which curates links of all other awesome projects: https://github.com/sindresorhus/awesome 🙂

Docker: Second Birthday

Docker is one of the hottest technologies; I started with it’s first release not too long back, however, in Docker world it feels like Docker has been around for a long time.

What a paradigm shift we have witnessed: a few technologies get that kind of attention, momentum, growth, and community in such a short time (24 months).

Today, we use Docker to develop, test, ship, integrate, deploy, and run apps/services. Docker has solved developer (devops) usability problems; it’s hard to go back and do things without Docker.

Haven’t heard of Docker, or didn’t find time to try it out? Start with following links.

What’s new with Docker? Look at following links:

  • Docker Compose (docker-compose, formerly known as fig)

    Compose is a tool for defining and running complex applications with Docker. With Compose, you define a multi-container application in a single file, then spin your application up in a single command which does everything that needs to be done to get it running.

  • Docker Machine (docker-machine)

    Machine makes it really easy to create Docker hosts on your computer, on cloud providers and inside your own datacenter. It creates servers, installs Docker on them, then configures the Docker client to talk to them.

  • Docker Swarm (swarm)

    Docker Swarm is native clustering for Docker. It turns a pool of Docker hosts into a single, virtual host.Swarm serves the standard Docker API, so any tool which already communicates with a Docker daemon can use Swarm to transparently scale to multiple hosts: Dokku, Compose, Krane, Flynn, Deis, DockerUI, Shipyard, Drone, Jenkins… and, of course, the Docker client itself.

Docker: Automatically Restarting Containers

As a Docker beginner, I always wondered, how to automatically restart container os or system boot?

Thankfully, Docker 1.2 introduced restart policies (which makes sure even linked containers are started in expected order).  The --restart=always flag/value can be passed to ensure automatic restart of containers.

docker run --restart=always redis

Read more about Docker Restart Policies, or other methods.

What I am up to?

This is how my 2014 passed, or what I am up to:

  • riding my motorcycle a lot
  • hacking electronics and IoT using OSHW
  • dockerising things (apps, services)
  • playing with Apache Mesos, and ecosystem around it
  • hacking projects using Javascript (framework, toolchain, node.js, ES6 way of doing things) and web-standards (HTML5, CSS3, components, etc)
  • got Google’s Widevine certification (as required in one of projects). Personally, I like non DRM’d content 🙂
  • built a Chromecast app using dash.js, modular Widevine DRM with node.js based proxy service for licensing, and Java for content encryption and packaging
  • been reading a lot of stuff through hackernews
  • helped and built stuff: QRizq, Diziana, 99doodles, IndieReign and other projects
  • not having meetings (waste of time)
  • not interviewing candidates who are not worth anyone’s time. [should do another post: sad and bad state of technical education in India]
  • bunch of other things I can’t recall

Did you notice that I have been mostly playing (or having fun)? On other side of it, I have also been thinking what’s nex; I think, I have figured that out.

At present, I am still involved with couple of projects mentioned above. I have also taken up a couple of interesting consulting assignments around technologies mentioned above along-with my old love (flash/actionscript).