book

Docker in Action, Second Edition

by Stephen Kuenzli, Jeffrey Nickoloff

November 2019

Intermediate to advanced

336 pages

11h 25m

English

Manning Publications

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2.1. Controlling containers: Building a website monitor2.2. Solved problems and the PID namespace2.3. Eliminating metaconflicts: Building a website farm2.4. Building environment-agnostic systems2.5. Building durable containers2.6. Cleaning upSummary
3.1. Identifying software3.2. Finding and installing software3.3. Installation files and isolationSummary
4.1. File trees and mount points4.2. Bind mounts4.3. In-memory storage4.4. Docker volumes4.5. Shared mount points and sharing files4.6. Cleaning up volumes4.7. Advanced storage with volume pluginsSummary
5.1. Networking background (for beginners)5.2. Docker container networking5.3. Special container networks: host and none5.4. Handling inbound traffic with NodePort publishing5.5. Container networking caveats and customizationsSummary
6.1. Setting resource allowances6.2. Sharing memory6.3. Understanding users6.4. Adjusting OS feature access with capabilities6.5. Running a container with full privileges6.6. Strengthening containers with enhanced tools6.7. Building use-case-appropriate containersSummary
7.1. Building Docker images from a container7.2. Going deep on Docker images and layers7.3. Exporting and importing flat filesystems7.4. Versioning best practicesSummary
8.1. Packaging Git with a Dockerfile8.2. A Dockerfile primer8.3. Injecting downstream build-time behavior8.4. Creating maintainable Dockerfiles8.5. Using startup scripts and multiprocess containers8.6. Building hardened application imagesSummary
9.1. Choosing a distribution method9.2. Publishing with hosted registries9.3. Introducing private registries9.4. Manual image publishing and distribution9.5. Image source-distribution workflowsSummary
10.1. Goals of an image build pipeline10.2. Patterns for building images10.3. Record metadata at image build time10.4. Testing images in a build pipeline10.5. Patterns for tagging imagesSummary
11.1. A service “Hello World!”11.2. Declarative service environments with Compose V311.3. Stateful services and preserving data11.4. Load balancing, service discovery, and networks with ComposeSummary
12.1. Configuration distribution and management12.2. Separating application and configuration12.3. Secrets—A special kind of configurationSummary
13.1. Clustering with Docker Swarm13.2. Deploying an application to a Swarm cluster13.3. Communicating with services running on a Swarm cluster13.4. Placing service tasks on the clusterSummary

Content preview from Docker in Action, Second Edition

Chapter 3. Software installation simplified

This chapter covers

Identifying software
Finding and installing software with Docker Hub
Installing software from alternative sources
Understanding filesystem isolation
Working with images and layers

Chapters 1 and 2 introduced new concepts and abstractions provided by Docker. This chapter dives deeper into container filesystems and software installation. It breaks software installation into three steps, as illustrated in figure 3.1.

Figure 3.1. Flow of topics covered in this chapter

The first step in installing any software is identifying the software you want to install. You know that software ...

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