I presented this webinar “Top 3 reasons why you should run your enterprise workloads on GKE” at NEXT100 CIO forum earlier this week. Businesses are increasingly moving to Containers and Kubernetes to simplify and speed up their application development and deployment. The slides and demo covers the top reasons why Google Kubernetes engine(GKE) is one of the best Container management platforms for enterprises to deploy their containerized workloads.
Following are the slides and recording:
This week, I did a presentation in Container Conference, Bangalore. The conference was well conducted and it was attended by 400+ quality attendees. I enjoyed some of the sessions and also had fun talking to attendees. The topic I presented was “Deep dive into Kubernetes Networking”. Other than covering Kubernetes networking basics, I also touched on Network control policy, Istio service mesh, hybrid cloud and best practises.
Slides:
Recording:
Demo code and Instructions:
Recording of the Istio section of the demo: (the recording was not at conference)
As always, feedback is welcome.
I was out of blogging action for last 9 months as I was settling into my new Job at Google and I also had to take care of some personal stuff. Things are getting little clear now and I am hoping to start my blogging soon…
After an amazing 10+ years in Cisco Systems, I have decided to move on. I have joined Google’s cloud division. I thought its a good time to reflect on my learnings in Cisco and what I am looking forward for the next few years.
Before joining Cisco, I worked in few startups in US. I joined Cisco after I moved back to India. I worked in different development engineering groups in Cisco spanning carrier ethernet, service provider and data center products. I played different roles including Software Engineer, Technical lead/architect, Engineering manager. Cisco is a great company and it has given me lot of good opportunities.
Continue reading My new Journey – Cisco to Google cloudDebugging Container and Docker Networking issues can be daunting at first considering that containers do not contain any debug tools inside the container. I normally see a lot of questions around Docker networking issues in Docker and stackoverflow forum. All the usual networking tools can be used to debug Docker networking, it is just that the approach taken is slightly different. I have captured my troubleshooting steps in a video and a presentation.
Following is the video and presentation of my Docker Networking troubleshooting tips.
I would appreciate if you can provide me feedback if the Networking tip videos were useful to you. Also, if there are any other Docker Networking topics that you would like to see as a tip video, please let me know.
I have also put few Docker Networking videos and presentations that I did over last 3 months below for completeness.
Following are the 2 previous Networking tip videos.
Following are 2 Docker Networking deep dive presentations:
I had promised earlier that I will continue my Docker Networking Tip series. This is second in that series. The first one on Macvlan driver can be found here. In this presentation, I have covered different load balance options with Docker. Following topics are covered in this presentation:
Following is the associated Youtube video and presentation:
I have put the use cases in github if you want to try it out.
If you think this is useful and would like to see more videos, please let me know. Based on the feedback received, I will try to create more Docker Networking tips in video format.
Docker containers provides an isolated sandbox for the containerized program to execute. One-shot containers accomplishes a particular task and stops. Long running containers runs for an indefinite period till it either gets stopped by the user or when the root process inside container crashes. It is necessary to gracefully handle container’s death and to make sure that the Job running as container does not get impacted in an unexpected manner. When containers are run with Swarm orchestration, Swarm monitors the containers health, exit status and the entire lifecycle including upgrade and rollback. This will be a pretty long blog. I did not want to split it since it makes sense to look at this holistically. You can jump to specific sections by clicking on the links below if needed. In this blog, I will cover the following topics with examples:
Continue reading Docker features for handling Container’s death and resurrection
Last few months, I have been looking at Docker forums(https://forums.docker.com/, https://stackoverflow.com/questions/tagged/docker) and trying to understand some of the common questions/issues faced in the Docker Networking area. This prompted me to do 2 presentations:
I received positive feedback to these 2 presentations. As a next step, I thought preparing each Docker Networking tip as a video can help some folks to get a better picture. As a first attempt, I prepared Macvlan driver as my first Docker Networking video tip. Following is the associated Youtube video and presentation.
If you think this is useful and would like to see more videos, please let me know. Based on the feedback received, I will try to create more Docker Networking tips in video format.
Docker Bangalore meetup is a very active group dedicated to topics around Docker and the ecosystem around it. There was a meetup conducted yesterday at IBM office. There was a mix of topics presented including Moby, Linuxkit, Docker for Windows and Docker multi-stage builds. Thanks to Neependra for organizing the meetup, Neependra created this meetup group and has been passionately doing it from the early days of Docker. Thanks to IBM for hosting the meetup, IBM has been a very active contributor to Container and Docker ecosystem.
I did a presentation on “Docker Networking – Common issues and troubleshooting considerations”. The feedback received in the session was very positive. Following were some reasons that I did this presentation:
Following is the approach and references I took to prepare the presentation:
Following link has the slides and this link has the video recording to my presentation. The slides in the recording is not very clear. I would very much appreciate if folks can provide feedback and also provide suggestions on additional Docker networking tips that can be covered. I will try to keep the slides updated based on what I learn/understand in the future.
Following are some of my earlier blogs/presentations that you can refer to get more understanding on Docker Networking recent features:
Starting with Docker 17.03, Docker introduced Community edition(CE) and Enterprise edition(CE) version of their Docker software. The release numbering also changed. From Docker 1.13.1, we jump to 17.03 version. Docker CE is the free version while Docker EE is the commercially supported enterprise version. Docker enterprise edition comes in different flavors based on the cost. Please refer this link for details on comparison between different Docker editions and the supported platforms for each editions. Both Docker CE and EE follow time based release schedule. Docker CE has 3 editions. CE “stable” edition gets released once every 3 months. CE “edge” edition gets released once every month. CE “test” edition is a release candidate that gets folded into “edge” and “stable” versions. I have used Docker release candidate(“test” edition) to try out new features before they get released. The steps to install release candidate Docker version is slightly different from installing “stable” and “edge” versions. Docker CE 17.06.0-ce-rc2 got released few days back and I have started trying out the new features in this version. This is a precursor to 17.06 release that will happen in few weeks. In this blog, I will cover installation steps for Docker CE edition release candidate software versions. I have focused on 17.06.0-ce-rc2, but the steps applies to any release candidate versions. The 3 approaches I have tried are installation from Docker static binaries, Docker machine with boot2docker and installation in Ubuntu platform with package manager.
When Docker RC version is released, the corresponding boot2docker image also gets released. I used the steps below to to the installation.
As part of Dockercon 2017, there was an announcement that Linux containers can run as hyperv container in Windows server. This announcement made me to take a deeper look into Windows containers. I have worked mostly with Linux containers till now. In Windows, I have mostly used Docker machine or Toolbox till now. I recently tried out other methods to deploy containers in Windows. In this blog, I will cover different methods to run containers in Windows, technical internals on the methods and comparison between the methods. I have also covered Windows Docker base images and my experiences trying the different methods to run Docker containers in Windows. The 3 methods that I am covering are Docker Toolbox/Docker machine, Windows native containers, hyper-v containers.
Docker Toolbox runs Docker engine on top of boot2docker VM image running in Virtualbox hypervisor. We can run Linux containers on top of the Docker engine. I have written few blogs(1, 2) about Docker Toolbox before. We can run Docker Toolbox on any Windows variants.
Sreenivas Makam's Blog 