Installation

Python 3 is required:

$ pip install netwell

Quickstart

Given a netwell checkup file checks.py:

from netwell.checkers import URL, DNS, Port, Repo

URL('http://fsf.org') \
    .redirects_to('http://www.fsf.org/') \
    .title_matches('Free Software Foundation') \
    .has_header('Content-Type', 'text/html;charset=utf-8')
Port('fsf.org', 443).ssl_valid_for(days=3000)
DNS('fsf.org', 'www.fsf.org').resolves_to('208.118.235.131')
Path('/').free_space(gb=1)
Path('/var/log/syslog').modified_within(hours=1)
Repo('/home/deploy/src/project').is_clean()

def custom_check(response, outcome):
    data = response.json()
    if data:
        outcome.fail('Other data expected')

URL('http://httpbin.org/get').check_response(custom_check)

Then, run:

$ netwell /some/where/checks.py
Checking that http://fsf.org redirects to http://www.fsf.org/... OK
Checking that http://fsf.org title matches "Free Software Foundation"... OK
Checking that http://fsf.org has header "Content-Type": "text/html;charset=utf-8"... OK
Checking that SSL at fsf.org:443 is valid for at least 3000 days... ERROR
ERROR: Not valid after 2016-10-13
Checking that fsf.org resolves to 208.118.235.131... OK
Checking that www.fsf.org resolves to 208.118.235.131... OK
Checking that / has 1 GB free space... ERROR
ERROR: Only 0.5 GB free
Checking that /var/log/syslog was modified after 2015-12-27 22:21:05.873355... OK
Checking that http://httpbin.org/get passes custom_check... ERROR
ERROR: Other data expected
Checking that repository /home/deploy/src/project is clean... ERROR
ERROR: Untracked files found

Use –quiet to only output the error messages, if any.