By Karl Matthias, Sean P. Kane
Docker is readily altering the best way that companies are deploying software program at scale. yet knowing how Linux packing containers healthy into your workflow—and getting the combination info right—are now not trivial projects. With this sensible consultant, you’ll the way to use Docker to package deal your purposes with all in their dependencies, after which try out, send, scale, and aid your boxes in production.
Two Lead web site Reliability Engineers at New Relic percentage a lot of what they've got discovered from utilizing Docker in creation due to the fact that presently after its preliminary free up. Their objective is that will help you make the most of this expertise whereas warding off the numerous setbacks they experienced.
learn the way Docker simplifies dependency administration and deployment workflow to your applications
begin operating with Docker photos, bins, and command line tools
Use sensible concepts to installation and try out Docker-based Linux packing containers in production
Debug bins by way of knowing their composition and inner processes
set up creation bins at scale within your information heart or cloud environment
discover complex Docker subject matters, together with deployment instruments, networking, orchestration, safety, and configuration
Read or Download Docker: Up & Running PDF
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Extra info for Docker: Up & Running
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. We’ve used the Go and Ruby libraries, for example, and have found them to be both robust and rapidly updated as new versions of Docker are released.
On Mac OS X, Homebrew is also a very popular option among technical users. Boot2Docker and , which are discussed later in this chapter, provide one approach to solving this issue. The directions below assume you are using a recent, stable release. io Fedora Linux 21 (64-bit) To install the correct Docker packages on your system, run the following command: $ sudo yum -y install docker-io TIP If you get a Cannot start container error, try running sudo yum upgrade selinux-policy and then reboot your system.
You probably wouldn’t, for instance, spin up an entire virtual machine to run a curl command to a website from a remote location, but you might spin up a new container for this purpose. All of your application management is simply handled by deploying and redeploying containers to the server. When the server needs an important update to something like the Docker daemon or the Linux kernel, you can simply bring up a new server with the changes, deploy your containers there, and then decommission or reinstall the old server.