curlnagios 0.6.0

curl check_http nagios plugin

Title1

Checks an url raise an alert if some problem is found. Uses curl with all its power, so you can extend your check with all curl options.

VERSION

Install

Linux:

sudo pip3 install curlnagios --upgrade

Also is possible to use:

sudo python3 -m pip install curlnagios --upgrade

On windows with python3.5:

pip install curlnagios --upgrade

For proxies add:

--proxy='http://user:passw@server:port'

Usage

Use the command line:

> curlnagios --help
  usage: curlnagios [-h] [-u [URL]] [-e [EXTRA_ARGS]]

    optional arguments:
    -h, --help            show this help message and exit
    -u [URL], --url [URL]
                            url to check
    -e [EXTRA_ARGS], --extra_args [EXTRA_ARGS]
                            extra args to add to curl, see `curl manpage <https://curl.haxx.se/docs/manpage.html>`_.

Example usage

Example use with proxy:

> curlnagios --url='http://xx/dd' --extra_args='--proxy http://user:pass@host:8080'

Example using proxy, and authentication with ntlm for the website:

> curlnagios –url=’http://xx/dd’ –extra_args=’–proxy http://user:pass@host:8080 –user user:pass –ntlm’

All the extra_args are options directly comming from curl manpage, you can use almost any with exception of -s, -o, -w as these are implicit added on the curl command line argument to format the output for this plugin.

Example usage with AzureAD oauth2

When creating authentication with AzureAD oauth2, you need to create a client Application and Azure AD only applications:

https://apps.dev.microsoft.com/#/appList

Then use:

> curlnagios –url ‘https://{yoururltotest}/api/path’ –client_id ‘unique-client-id’ –scope ‘https://{tenant}/unique-id-here-for-the-app/.default’ –client_secret ‘theclientoken’ –grant_type ‘client_credentials’ –auth_url ‘https://login.microsoftonline.com/{tenant}/oauth2/v2.0/token’ –oauth2

Change {tenant} with your identifier and the unique id for client and for application. Add your client secret

This comes from documentation using token: https://docs.microsoft.com/en-us/azure/active-directory/develop/v2-oauth2-auth-code-flow#request-an-access-token

Nagios config

Example command:

define command{
    command_name  check_http_curl
    command_line  /usr/local/bin/curlnagios --url='$ARG1$' --extra_args='$ARG2$'
}

define command{
    command_name  check_http_curl_azuread
    command_line  /usr/local/bin/curlnagios --url='$ARG1$' --client_id '$ARG2$' --scope '$ARG3$' --client_secret '$ARG4$' --auth_url 'https://login.microsoftonline.com/$ARG5$/oauth2/v2.0/token' --oauth2 --extra_args='$ARG6$'
}

Example service:

define service {
        host_name                       SERVERX
        service_description             service_name
        check_command                   check_http_curl!http://url/path!--proxy http://user:name@host:8080 --user user:name --ntlm
        use                                         generic-service
        notes                           some useful notes
}

Example service bypassing reverse proxy and dns and proxy server:

define service {
        host_name                       SERVERY
        service_description             fqdn.backend1
        check_command                   check_http_curl!http://192.168.10.10:80!--noproxy "192.168.10.10" -H "Host: fqdn.site.name"
        use                                         generic-service
        notes                           Monitoring backend1 de of site fqdn.site.name
}

 ## In this way you can connect to some backend and pass with -H the host header to get and also ensure no proxy used to connect to url.

Example using azuread oauth2:

define service {
        host_name                       SERVERY
        service_description             fqdn.backend1
        check_command                   check_http_curl_azuread!http://fqdn.site.name/api/xx!client-unique-id!https://{tenant}/unique-id-here-for-the-app/.default!client-secret-unique!tenant!some extra args if desired
        use                                         generic-service
        notes                           Monitoring backend1 de of site fqdn.site.name
}

You can use ansible role that already has the installation and command: https://github.com/CoffeeITWorks/ansible_nagios4_server_plugins

TODO

• Use hash passwords

• Add Unit tests?