emomeni/netdevops-cicd

ci-cd pipeline using Nornir-Napalm for configuration, and Pytest for pre/post validation checks.

netdevops-cicd

My first netdevops ci-cd pipeline using the following tools, shoutout to @JulioPDX for putting together his guide here https://juliopdx.com/2021/10/20/building-a-network-ci/cd-pipeline-part-1/

• Nornir-Napalm for device configuration
• Drone CI/CD
• Pytest for pre/post validation checks
• Custom Docker container

Topology

Steps

• Clone the main repo
• Create a new branch
• Update the global variable YAML file updating the DMVPN Tunnel Secret
• Push changes and publish new branch, create PR
• New branch triggers CI/CD pipeline for pre validation checks to TEST devices
• Pre check consist of running NAPALM in dry run mode first , then pushing the changes, then pytest for testing DMVPN Tunnel State
• If checks pass and PR is merged, it triggers the last CI/CD pipeline
• Napalm dry run, push changes, and post validation check with pytest to PROD devices.

Starting the CI/CD pipeline by creating a new PR

Pre-Check Napalm Dry-Run Validation to TEST Devices

Pre-Check Napalm Push Config to TEST Devices

Pre-Check Pytest script to check if all DMVPN Tunnels are UP TEST Devices

PR request accepted and merged to master, triggers CD pipeline

Napalm Dry-Run Validation to PROD Devices

Napalm Push Config to PROD Devices

Finally, Pytest to check DMVPN Tunnel Status on PROD Devices