network-automation

## What I do - Automate network configuration and management - Write scripts for network device provisioning - Implement infrastructure as code for networks - Build network CI/CD pipelines - Manage network state declaratively - Automate network testing and validation - Handle multi-vendor network automation ## When to use me Use me when: - Managing large network infrastructures - Reducing manual configuration errors - Implementing consistent network policies - Automating routine network tasks - Building network CI/CD pipelines - Scaling network operations ## Key Concepts ### Network Automation Tools - **Ansible**: Agentless, YAML playbooks - **Python (Netmiko, NAPALM)**: Scripting - **Terraform**: Infrastructure as code - **Nornir**: Python-based automation - **StackStorm**: Event-driven automation ### Ansible Network Example ```yaml --- - name: Configure network devices hosts: switches gather_facts: no tasks: - name: Configure VLANs cisco.ios.ios_vlans: config: - vlan_id: 10 name: Management - vlan_id: 20 name: Data - name: Configure interfaces cisco.ios.ios_l2_interfaces: config: - name: GigabitEthernet0/1 mode: access access: vlan: 20 ``` ### NAPALM for Multi-Vendor ```python from napalm import get_network_driver driver = get_network_driver('ios') device = driver('192.168.1.1', 'admin', 'password') device.open() # Get facts facts = device.get_facts() print(facts['hostname'], facts['model']) # Get config config = device.get_config() print(config['running']) # Compare configs device.load_merge_candidate(config='new_config.txt') device.compare_config() device.commit_config() ``` ### Network CI/CD Pipeline 1. **Commit**: Code changes to version control 2. **Lint**: Validate syntax and templates 3. **Test**: Dry-run, sanity checks 4. **Stage**: Apply to staging network 5. **Verify**: Automated testing 6. **Production**: Deploy with rollback plan