Docker
Docker

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Kubernetes

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What is Docker?

The Docker Platform is the industry-leading container platform for continuous, high-velocity innovation, enabling organizations to seamlessly build and share any application — from legacy to what comes next — and securely run them anywhere

What is Kubernetes?

Kubernetes is an open source orchestration system for Docker containers. It handles scheduling onto nodes in a compute cluster and actively manages workloads to ensure that their state matches the users declared intentions.

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Why do developers choose Docker?
Why do developers choose Kubernetes?
What are the cons of using Docker?
What are the cons of using Kubernetes?
What companies use Docker?
What companies use Kubernetes?
What are some alternatives to Docker and Kubernetes?
LXC
LXC is a userspace interface for the Linux kernel containment features. Through a powerful API and simple tools, it lets Linux users easily create and manage system or application containers.
rkt
Rocket is a cli for running App Containers. The goal of rocket is to be composable, secure, and fast.
Cloud Foundry
Cloud Foundry is an open platform as a service (PaaS) that provides a choice of clouds, developer frameworks, and application services. Cloud Foundry makes it faster and easier to build, test, deploy, and scale applications.
Vagrant
Vagrant provides the framework and configuration format to create and manage complete portable development environments. These development environments can live on your computer or in the cloud, and are portable between Windows, Mac OS X, and Linux.
OpenShift
OpenShift is Red Hat's Cloud Computing Platform as a Service (PaaS) offering. OpenShift is an application platform in the cloud where application developers and teams can build, test, deploy, and run their applications.
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What tools integrate with Docker?
What tools integrate with Kubernetes?
Decisions about Docker and Kubernetes
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Interest over time
Reviews of Docker and Kubernetes
Avatar of gdi2290
Co-Founder and CTO at Tipe
Review ofDockerDocker

Docker is the new kid on the block disrupting virtualization nowadays. You're able to save up to 70% of your development cost on AWS (or any other cloud) switching to Docker. For example instead of paying for many small VMs you can spin up a large one with many Docker containers to drastically lower your cost. That alone is only one of the reasons why Docker is the future and it's not even the best feature: isolation, testa­bil­i­ty, re­pro­ducibil­i­ty, standardization, security, and upgrading / down­grad­ing / ap­pli­ca­tion versions to name a few. You can spin up 1000's of Docker containers on an ordinary Laptop, but you would have trouble spinning up 100's of VMs. If you haven't already checked out Docker you're missing out on a huge opportunity to join the movement that will change development/production environments forever

Review ofKubernetesKubernetes

It's a little bit complex to onboard, but once you grasp all the different concepts the platform is really powerful, and infrastructure stops being an issue.

Service discovery, auto-recovery, scaling and orchestration are just a few of the features you get.

Review ofDockerDocker

The support for macOS is a fake.

I can't work with docker in macOS because de network and comunications with the container don't works correctly.

How developers use Docker and Kubernetes
Avatar of ssshake
ssshake uses DockerDocker

Currently experimenting. The idea is to isolate any services where I'm not confident yet in their security/quality. The hope is that if there is an exploit in a given service that an attacker won't be able break out of the docker container and cause damage to my systems.

An example of a service I would isolate in a docker container would be a minecraft browser map application I use. I don't know who wrote it, I don't know who's vetting it, I don't know the source code. I would feel a lot better putting this in a container before I expose it to the internet.

I believe I will follow this process for anything that's not properly maintained (not in an trusted apt-repo or some other sort of confidence)

Avatar of AngeloR
AngeloR uses DockerDocker

We are testing out docker at the moment, building images from successful staging builds for all our APIs. Since we operate in a SOA (not quite microservices), developers have a dockerfile that they can run to build the entirety of our api infrastructure on their machines. We use the successful builds from staging to power these instances allowing them to do some more manual integration testing across systems.

Avatar of Josh Habdas
Josh Habdas uses DockerDocker

Docker is used for local development along with boot2docker and VirtualBox as described in Simple websites with Jekyll and Docker. It's also used on the server to build and house the site. Additionally the container is hosted free with automated builds on DockerHub.

Avatar of Yaakov Gesher
Yaakov Gesher uses DockerDocker

Each component of the app was launched in a separate container, so that they wouldn't have to share resources: the front end in one, the back end in another, a third for celery, a fourth for celery-beat, and a fifth for RabbitMQ. Actually, we ended up running four front-end containers and eight back-end, due to load constraints.

Avatar of Matt Welke
Matt Welke uses KubernetesKubernetes

Just tinkering with it for personal use at this stage based on positive experience using it at work. Plan to use it for high traffic distributed systems if not using a managed hosting service like Heroku, AWS Lambda, or Google Cloud Functions. Reasons for using instead of these alternatives would be cheaper cost at higher scale.

Avatar of sapslaj
sapslaj uses DockerDocker

Linux containers are so much more lightweight than VMs which is quite important for my limited budget. However, Docker has much more support and tooling for it unlike LXC, hence why I use it. rkt is interesting, although I will probably stick with Docker due to being more widespread.

Avatar of realcloudratics
realcloudratics uses KubernetesKubernetes

Good existential question. Kubernetes is painful in the extreme - especially when combined with Ansible. The layers of indirection are truly mind altering. But hey - containers are kewl!

Avatar of Japan Digital Design
Japan Digital Design uses KubernetesKubernetes

Our developer experience system is on Kubernetes (Google Kubernetes Engine at the moment). We would like to expand our Kubernetes clusters over other Kubernetes engine.

Avatar of ShareThis
ShareThis uses KubernetesKubernetes

Kubernetes is used for managing microclusters within our AWS infrastructure. This allows us to deploy new infrastructure in seconds.

Avatar of papaver
papaver uses KubernetesKubernetes

minor experience with kubernetes. helped a client setup a kubernetes infrastructure. love the elegance of the system.

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