We’re always on the lookout for new technologies that can help us create high performing systems that help our clients create agile IT operations and development efforts. When trying to choose software application-development technologies, a key concern is the ability to deploy applications typically in any environment without overhead.
Docker really does let you “Build once, configure once and run anywhere.”
And while it’s a new technology, it has now been proven to be highly effective in a variety of environments.
DOCKER & MULTI-TENANCY
A solar panel organization asked us to developed an end-to-end Internet of Things project that received sensor data and used that to provide reports to the end-users of the service provider. Part way through the project, the client saw a business opportunity and asked us to support multiple service providers.
At this point we had the option to rearchitect the application and institute major changes that would be both time-consuming and expensive for our client. And the end result would be a far more complicated, rigid and difficult to maintain codebase.
However, we were familiar with Docker because we were investigating using it for setting up our internal development environments and hence used docker for our solution.
OUR SOLUTION FOR MULTI-TENANCY: DOCKER CONTAINERS
QUICK AND EASY MULTI-TENANCY
ISOLATED ENVIRONMENTS FOR EACH PROVIDER AT LOW COSTS
NO MAJOR APPLICATION REWRITES
DOCKER & DEV FLOWS
DOCKER CONTINUOUS DEPLOYMENT PROVIDES:
- Excellent mechanism for low overhead virtualization
- Isolated environments to be created in a single machine without imposing a performance overhead
- A multi-tier production environment mimic on a single machine where each tier still gets their own isolated environment, and dedicated IP address and port
REFERENCE ARCHITECTURE USING DOCKER:
- Our reference architecture allows developers to test code in a production-like environment at a high pace
- Minimize bugs that occur due to differences in local and QA environments
- Makes it easier for the developers to identify and fix bugs that occur due to environment mismatch
In the last post of this series, we discussed Docker Remote API and explored the commands specific to containers. In this post, let’s discuss commands specific to images.
Create an Image
Images can be created in one of the following ways:
By performing a registry pull
By importing the image
In the last post, as part of our on-going Docker Tutorial Series, we discussed Docker Hub and Docker Registry API. In today’s post, let’s delve into Docker Remote API.
Docker Remote API
Docker Remote API is a REST API that replaces the remote command line interface — rcli. For the purpose …
A couple of weeks ago, we attended DockerCon, the inaugural Docker-centric conference for developers, and anyone else, with an interest in the open platform to build, ship, and run distributed applications, whether on laptops, data center VMs, or the …
Throughout our Docker Tutorial Series, we have discussed many significant Docker components and commands. In today’s series installment, we dig deeper into Docker and uncover Docker APIs.
The first item worth noting is that Docker provides the following APIs, making it easier to use. Those APIs also come in four flavours:
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In an earlier post for the Docker Tutorial Series, we discussed the first 15 Docker commands. We shared some hands-on experience in how they are used and what they do.
In this post, we will talk about another 15 Docker commands, leading …
Next week, the Flux7 team is attending the first annual DockerCon, a two-day Docker-centric event that is being organized by Docker Inc. By far the most exciting part for us will be presenting our developing productivity workflow with our client Auto.com, a Chicago-based online portal that delivers information …
Security is taken seriously when dealing with open source accountability. And it’s no different when developers embrace using Docker, by building applications locally right up to production deployments. A big responsibility that comes with being deployed in so many …
In the previous #Docker Tutorial Series post, we discussed the importance of DockerFile and provided a list of DockerFile commands that makes the automation of image creation easier. In this post, let’s talk about about a significant #Docker component: #Docker Registry. …
In our last #Docker tutorial series post, we shared the 15 commands that got us onboard with #Docker. This set of #Docker commands are steps to manually create images. That is …
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At Flux7, we have been working closely with the Docker team to do performance benchmarking of Docker. Right now, we’ve been trying experiments with native, Docker and KVM with virtualized hardware. We’ve tried a mixture of both micro and macro benchmarks to get a general feel for …
The following Docker Trivia quiz is a set of ten questions to test how well you know Docker basics including basic docker concepts, commands and trivia. Take this challenge and analyze how well you know Docker! Now, dive into the test and give your best.
Our website, flux7.com, runs inside a Docker container and last weekend we learned that Flux7’s investment in Docker is really starting to pay off. Using Docker we were quickly able to recover the website from a buggy code change, quickly reproduce and fix the bug. Here’s what …
We had a very interesting discussion with a client yesterday about the use of Docker and where it fits within their environment. The client’s representative was pushing back on us for using Docker and, as always, I enjoyed the constructive argument. As it turned out, we pretty much …
“Build once, configure once and run anywhere….” That’s Docker summarized in one line. When trying to choose from the great number of available software application-development technologies, a key concern is the ability to deploy applications typically in any environment without overhead. Deploying services …
Recently at Flux7 Labs we developed an end-to-end Internet of Things project that received sensor data to provide reports to service-provider end users. Our client asked us to support multiple service providers for his new business venture. We knew that rearchitecting the application to incorporate major changes …
MORE THOUGHTS ON DOCKER
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