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 11. Services with Docker and Compose

This chapter covers

Understanding services and how they relate to containers
Basic service administration with Docker Swarm
Building declarative environments with Docker Compose and YAML
Iterating projects with Compose and the deploy command
Scaling services and cleaning up

Today most of the software we run is designed to interact with other programs, not human users. The resulting webs of interdependent processes serve a collective purpose such as processing payments, running games, facilitating global communications, or delivering content. When you look closely at that web, you’ll find individual running processes that might be running in containers. Those processes are allocated memory and ...