Allan Espinosa is a DevOps practitioner living in Tokyo. He is an active open source contributor to various distributed systems tools, such as Docker and Chef.

Allan maintains several Docker images for popular open source software that were popular even before their official release from the upstream open source groups.

In his career, Allan has worked on large distributed systems containing hundreds to thousands of servers in production. He has built scalable applications on various platforms ranging from large supercomputing centers in the U.S. to production enterprise systems in Japan.

Allan can be contacted through his Twitter handle @AllanEspinosa. His personal website at http://aespinosa.github.io contains several blog posts on Docker and distributed systems in general.

• Preface
• Chapter 1 : Preparing Docker Hosts
  • Preparing a Docker host
  • Working with Docker images
  • Running Docker containers
  • Summary
• Chapter 2 : Optimizing Docker Images
  • Reducing deployment time
  • Improving image build time
  • Reducing Docker image size
  • Summary
• Chapter 3 : Automating Docker Deployments with Chef
  • An introduction to configuration management
  • Using Chef
  • Configuring the Docker host
  • Deploying Docker containers
  • Alternative methods
  • Summary
• Chapter 4 : Monitoring Docker Hosts and Containers
  • The importance of monitoring
  • Collecting metrics to Graphite
  • Monitoring with collectd
  • Consolidating logs in an ELK stack
  • Forwarding Docker container logs
  • Other monitoring and logging solutions
  • Summary
Chapter 5 : Benchmarking
• Setting up Apache JMeter
• Building a benchmark workload
• Analyzing benchmark results
• Tuning the benchmark
• Other benchmarking tools
• Summary
Chapter 6 : Load Balancing
• Preparing a Docker host farm
• Balancing load with Nginx
• Scaling out our Docker applications
• Other load balancers
• Summary
Chapter 7 : Troubleshooting Containers
• Inspecting containers
• Debugging from the outside
• A stack of troubleshooting tools
• Summary
Chapter 8 : Onto Production
• Performing web operations
• Supporting web applications with Docker
• Deploying applications
• Scaling applications
• Further reading
• Summary
Index