Uploaded byRosemary Wang
2018 Cisco DevNet Create : How to Treat a Network as a Container
The document discusses treating networks like containers by automating network configuration and changes through continuous integration/delivery pipelines. It recommends building network automation tools, implementing standard templates and tests, and deploying network changes using blue/green deployment patterns to reduce risk. Automating network configuration, implementing standards, and using pipelines and deployment patterns allows networks to be updated safely and at scale like containerized software.
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2018 Cisco DevNet Create : How to Treat a Network as a Container
- 1. How to Treata Network as a Container (or get close) Cisco DevNet Create | 2018
- 2. whoami rosemary wang platform &infra @thoughtworks @joatmon08
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- 7. 99 problems terminology api non-standard “distributed system” protocolsare specialized +94 more
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- 15. Given ⇨ thecomponent to automate ⇨ Setup When ⇨ some event happens ⇨ Automation Then ⇨ the component should be configured ⇨ Test
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- 18. Smoke Test tests/smoke/features/connectivity.feature Ansible Playbook playbook/ MockVirtual Device joatmon08/openvswitch-docker connectivity
- 19. unit: check_openvswitch_playbook Creates aVagrant box with Open vSwitch image, checks that the playbook runs to completion. lint_yaml lint_python check_ansible_syntax Make sure spacing & syntax is good. integration: bootstrap sh -c '. venv/bin/activate; cd tests/smoke && behave' Creates two Open vSwitch hosts via Vagrant, runs playbook, creates a container on each and checks connectivity. contract: bootstrap sh -c '. venv/bin/activate; pytest tests/contract --capture=no' Create Open vSwitch host via Vagrant, captures output of Consul Handler and compares to input of playbook Same tests as integration, except on real device if I had one. E2E Integration Service/Contract Unit makefile testing the feature
- 20. list of tools Vagrant:for virtual devices Ansible: for device automation Python: for coding pytest: for running unit/service tests behave: BDD for running integration tests makefile: shortcuts for staging & running tests
- 21. Automation Tool Linting Program TestingFramework Smoke Test Testing Framework Scripts/BDD Smoke Test test Config/Template Validation Functional Validation Output/Input Certification Staging/Production E2E Integration Service/Contract Unit
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- 23. ▢ names ▢ designprinciples ▢ common template/code formatting ▢ testing/development setup ▢ event triggers set the standards
- 24. ▢ quality review ▢linting programs ▢ version control ▢ CI/CD framework ▢ documentation enforce the standards
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- 27. “..is an automatedmanifestation of your process for getting software from version control into the hands of your users.” Continuous Delivery: Reliable Software Releases through Build, Test, and Deployment Automation a pipeline
- 28. When I needto ship anything, then I should do it through a pipeline. Unit Build Secure Monitor Perform DeployTest Lint Unit Test Contract Test Automation Smoke Test Conformance Tests (can run async) Production Ready!
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- 33. connectivity Given I havea container or software-defined network When I need to upgrade that network* Then I should create a new network with updated configuration and use it. *Assumes no IP address affinity
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- 41. networking is challenging investin tests patterns & standards are useful
- 42. learn more ▢ hack ▢read examples ▢ repurpose ▢ befriend a network engineer / qa / dev
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