12 Factor Applications with Docker and Go (Engineer)
12 Factor Applications with Docker and Go
A book filled with examples on how to use Docker and Go to create the ultimate 12 Factor applications
About the Book
Using Docker to solve scaling issues, ideally before they occur. Scale your Go service from the start!
- About me
- Who is this book for?
- How should I study it?
- Linux and Docker
- Additional requirements
I. Codebase - One codebase tracked in revision control, many deploys
- Multiple deploys
- Structuring your code
- Improving deployments
II. Dependencies - Explicitly declare and isolate dependencies
- Caveats about vendoring
- System dependencies
III. Config - Store config in the environment
IV. Backing services - Treat backing services as attached resources
- Data resources
- Example backing services
V. Build, release, run - Strictly separate build and run stages
- Building Go applications
- Building Docker images
- Continuous integration with Codeship
VI. Processes - Execute the app as one or more stateless processes
- Data caching
- Backing service: Running a highly available Redis instance
- Realistic example of a stateless application
VII. Port binding - Export services via port binding
- The none network
- The bridge network
- Custom bridge network
- Multi-host network
- Host networking
- Exposing your service ports
- Debugging docker network connectivity
- Using your own DNS
- Sending e-mails from docker
VIII. Concurrency - Scale out via the process model
- Basic process management
- Advanced process management
- Docker swarm
- Scaling our service with Docker Swarm
- Rolling updates for our service
- Scaling to a 1000 containers!
IX. Disposability - Maximize robustness with fast startup and graceful shutdown
- Disposing of containers
- Docker Chaos Monkey
- Health checks
X. Dev/prod parity - Keep development, staging, and production as similar as possible
- It worked on my machine
- Upgrades and testing
- Many moving parts
XI. Logs - Treat logs as event streams
- A note on backing services
- Logging Docker to Papertrail
- Logging as a backing service
XII. Admin processes - Run admin/management tasks as one-off processes
- Running backups
- Console access to your containers
- Orchestrating your management tasks
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