Vagrant + Ansible + Docker
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This document discusses using Vagrant, Ansible, and Docker together to build portable infrastructure that avoids dependency issues, allows consistent workflows, and reduces risk. Vagrant is used to create and manage virtual environments from a configuration file. Ansible then provides configuration management through push-based execution of tasks without a client. Docker adds portability by allowing applications to run in lightweight isolated containers across machines. A sample project demonstrates Vagrant starting a VM, Ansible provisioning it by starting a Docker container, and an application running within the container.
Vagrant + Ansible + Docker
- 1. Vagrant + Ansible + Docker building portable infrastructure Vijay Selvaraj <[email protected]>
- 2. Avoid the ‘but it works on my computer’ problem Why be married to a PaaS provider?
- 3. Build virtual environments with a configuration file Isolate dependencies and their configuration Disposable Consistent workflows Develop and test infrastructure management scripts
- 5. Simple configuration management solution for complex polyglot systems Ansible is push-based vs pull-based (ex. Puppet) On-demand task execution No client required on the node Rollback bad configurations
- 7. Portable across all machines Lightweight footprint and minimal overhead Reduces risk of application dependencies
- 9. putting it all together …
- 10. Vagrant is responsible for starting up and running an Ansible playbook The Ansible playbook starts a docker container Application code runs within the Docker container