Download Docker: Up & Running by Karl Matthias, Sean P. Kane PDF

By Karl Matthias, Sean P. Kane

Docker is readily altering the way in which that corporations are deploying software program at scale. yet figuring out how Linux bins healthy into your workflow—and getting the combination information right—are no longer trivial initiatives. With this sensible consultant, you’ll easy methods to use Docker to package deal your purposes with all in their dependencies, after which try, send, scale, and aid your bins in production.

Two Lead web site Reliability Engineers at New Relic percentage a lot of what they've got realized from utilizing Docker in construction given that almost immediately after its preliminary unencumber. Their aim is that will help you take advantage of this know-how whereas warding off the numerous setbacks they experienced.

learn the way Docker simplifies dependency administration and deployment workflow in your applications
begin operating with Docker pictures, packing containers, and command line tools
Use functional ideas to install and try out Docker-based Linux boxes in production
Debug boxes via realizing their composition and inner processes
set up construction boxes at scale inside of your information heart or cloud environment
discover complex Docker themes, together with deployment instruments, networking, orchestration, safeguard, and configuration

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Extra info for Docker: Up & Running

Sample text

Pull images from a registry to a Docker daemon or push them up to a registry from the Docker daemon. Start a container on a Docker server either in the foreground or background. Retrieve the Docker logs from a remote server. Start a command-line shell inside a running container on a remote server. But the Docker command-line tool is not the only way to interact with Docker, and it’s not necessarily the most powerful. As your organization embraces Docker over time, it’s likely that you will increasingly find the API to be a good integration point for this tooling.

Because everything is running on the same kernel, many types of security vulnerabilities or simple misconfiguration can give the container’s root user unauthorized access to the host’s system resources, files, and processes. That might not seem like a lot of state, but it means that you’ve limited the reusability of your container, and made it more challenging to deploy into different environments, without maintaining configuration data in your codebase. In most companies, those environments would require many different configuration settings, from the names of databases to the hostnames of other service dependencies.

Like the container port, or multimodal shipping hub, your Docker tooling will only ever have to deal with one kind of package: the Docker image. That’s powerful because it’s a huge facilitator of tooling reuse between applications, and it means that someone else’s off-the-shelf tools will work with your build images. Once a container is built, it can easily be deployed on any system with a running Docker server. Because of the standardization provided by Docker, your build can be deployed into any of these systems, with low complexity on the part of the development teams.

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