Viper Infrastructure Commander

Viper is a handy tool for easily running infrastructure management tasks and commands.

Installation

pip install -U viper-infra-commander

Viper CLI Examples.

Initialize current workspace (creates a viperdb.sqlite3 file)

viper init

# or remove or overwrite existing data with "-f" / "--force"

viper init -f

Load hosts from file

viper hosts:from-file tests/data/hosts.csv --indent 4

# or with a custom loader

viper hosts:from-file tests/data/hosts.json --loader viper.demo.loaders.json --indent 4

Load hosts from a Python function

viper hosts viper.demo.hosts.group1 --indent 4

Let's save the hosts

viper hosts viper.demo.hosts.group1 > /tmp/hosts.json

Filter hosts

cat /tmp/hosts.json | viper hosts:filter viper.demo.filters.ip_starts_with_2 --indent 4

Assign tasks to the given hosts

cat /tmp/hosts.json | viper hosts:task viper.demo.tasks.ping --indent 4

Run the assigned tasks

cat /tmp/hosts.json | viper hosts:task viper.demo.tasks.ping | viper task-runners:run --indent 4

# or use a shortcut

cat /tmp/hosts.json | viper hosts:run-task viper.demo.tasks.ping --indent 4

Run tasks in parallel using multiple workers

cat /tmp/hosts.json | viper hosts:run-task viper.demo.tasks.ping --max-workers 50 --indent 4

Get the past task results of the hosts from DB

cat /tmp/hosts.json | viper hosts:task-results --indent 4 --debug

Or get the past task results by task

viper task:from-func viper.demo.tasks.ping | viper task-results:by-task -i 4

# Or

viper task:from-func viper.demo.tasks.ping | viper task:results -i 4

Let's save the result

viper task:from-func viper.demo.tasks.ping | viper task:results > /tmp/results.json

Now filter the results by their status

# success
cat /tmp/results.json | viper task-results:filter viper.demo.filters.result_ok -i 4

# failed
cat /tmp/results.json | viper task-results:filter viper.demo.filters.result_errored -i 4

Pipe the results to a custom handler

cat /tmp/results.json | viper task-results:pipe viper.demo.handlers.print_status

Let's do that again in one go

viper hosts viper.demo.hosts.group1 | viper hosts:run-task-then-pipe viper.demo.tasks.ping viper.demo.handlers.print_status

Viper CLI Reference

usage: viper [-h] [--version] [--debug]
             {init,task:from-func,task,task:results,hosts:from-file,hosts:from-func,hosts,hosts:filter,hosts:count,hosts:sort,hosts:pipe,hosts:task,hosts:run-task,hosts:run-task-then-pipe,hosts:task-results,task-runners:filter,task-runners:count,task-runners:sort,task-runners:pipe,task-runners:run,task-runners:hosts,task-results:filter,task-results:count,task-results:sort,task-results:pipe,task-results:hosts,task-results:by-task}
             ...

Viper CLI v0.1.0

positional arguments:
  {init,task:from-func,task,task:results,hosts:from-file,hosts:from-func,hosts,hosts:filter,hosts:count,hosts:sort,hosts:pipe,hosts:task,hosts:run-task,hosts:run-task-then-pipe,hosts:task-results,task-runners:filter,task-runners:count,task-runners:sort,task-runners:pipe,task-runners:run,task-runners:hosts,task-results:filter,task-results:count,task-results:sort,task-results:pipe,task-results:hosts,task-results:by-task}
    init                initialize the current workspace
    task:from-func      get the task from a python function location
    task                alias of 'task:from-func'
    task:results        get the past task results of given task
    hosts:from-file     get a group of hosts from a file
    hosts:from-func     get a group of hosts from a python function location
    hosts               alias of 'hosts:from-func'
    hosts:filter        filter hosts by a given function
    hosts:count         count the number of hosts
    hosts:sort          sort the hosts
    hosts:pipe          pipe the hosts to the given function
    hosts:task          assign a task to each host
    hosts:run-task      assign a task to each host and run
    hosts:run-task-then-pipe
                        run the given task on the hosts and then pipe the
                        result to the given function
    hosts:task-results  get the past task results of the hosts
    task-runners:filter
                        filter task runners by a given function
    task-runners:count  count the number of task runners
    task-runners:sort   sort the task runners
    task-runners:pipe   pipe the task runners to the given function
    task-runners:run    run the assigned tasks
    task-runners:hosts  get the hohsts from the task runners
    task-results:filter
                        filter task results by a given function
    task-results:count  count the number of task results
    task-results:sort   sort the task results
    task-results:pipe   pipe the task results to the given function
    task-results:hosts  get the hosts from the task results
    task-results:by-task
                        get the past task results of given task

optional arguments:
  -h, --help            show this help message and exit
  --version             show program's version number and exit
  --debug               show traceback information when an exception is raised