Rick Donato

Git Tip: git checkout allows you to restore a single file to a previous version without affecting the rest of your project. For example: git checkout--. Full example below: # View the commit history of a specific file. git log -- path/to/file # Restore a specific file to its state

Git Tip: Skip --set-upstream! Set the upstream branch automatically using the push.default config. Heres an example: # Before: Manually setting upstream git push --set-upstream origin apples # Configuration to set upstream automatically git config --global push.default current # After: Just push, and Git sets the upstream automatically git push

Jinja Tip! Use selectattr to filter a list of dictionaries based on a matching condition. # Input data interfaces: - { device: 'spine1', interface: 'GigabitEthernet0/0', ip: '10.1.1.1' } - { device: 'spine1', interface: 'GigabitEthernet0/1', ip: '10.1.2.

Jinja Tip: Use Jinja's map to extract specific values from a list of dictionaries. Perfect for pulling out IPs, interfaces, or other attributes within your Jinja templates or Ansible playbooks. Example below: # Input data interfaces: - { device: 'spine1', interface: 'GigabitEthernet0/0', ip: '10.

git diff lets you compare changes between commits, branches, or specific files. It also offers options for summaries and detailed file changes. Here are a few examples: # Compare Changes Between Commits git diff <commit1> <commit2> # Compare changes between two commits. git diff <commit1> <

When troubleshooting Ansible settings, use ansible-config dump --only-changed to show only configurations that differ from the default. It reveals the source of the change, whether it's from a config file or an environment variable. Here's an example 👇 $ ansible-config dump --only-changed # Output: # CONFIG_FILE() = /home/rick/ansible-examples/

pyATS Tip: Use pyATS APIs, like get_platform_memory_usage() , to easily retrieve device performance metrics, such as memory usage, from network devices, which you can later use within your test cases. Example below 👇 from genie import testbed testbed = testbed.load("testbed.yml") device = testbed.devices["leaf1&

Ansible Resource Modules offer various states to manage network configuration sections effectively. For example use parsed to convert configurations into structured data, like so: --- - name: Ansible Modules - Resource Modules (Parse) hosts: leaf1 gather_facts: false tasks: - name: Parse the provided configuration cisco.ios.ios_l3_interfaces:

What is JSONata? Dealing with nested JSON can be challenging—looping, complex key lookup chains, etc. Though there are various options out in the community for easing this pain, the one project I always enjoyed was JSONata. It's easy to use and has strong transformation features—something lacking