Python inventory script

Basic details of your computer like operating system and version, memory, network adapter and hard drive are never stored in one central location. You always have to go clicking around for it. But if you've got Python installed, we can build a script that collects all of that information and returns all of the details right at the console. To do this, I've installed Python 3. We won't be doing anything fancy with Python so you might not need this particular version.

Luckily, we already have a Python WMI module available called wmi. To use the wmi module, we need both itself and a dependency module called pywin We can download them both with pip. Once we have the modules installed, open up the python interpreter and import the wmi module via import wmi.

Once the wmi module is imported, we can then begin gathering the various attributes of our computer inventory script. We first need to establish a connection to the WMI repository. Next, we simply need to provide the appropriate WMI class name and attributes we need to gather up. First, let's grab the operating system and version. Next, I'll grab total storage.

Because we're already looking at the C: drive, I can reference the Size and FreeSpace properties to find that information I'm looking for.

Next up is total RAM. This class provides a single attribute we can use to easily gather this information. However, this isn't as easy as referencing an individual attribute as we've done previously. Since a machine can potentially have lots of NICs installed, we need to narrow it down.

Creating custom dynamic inventory with Ansible using Python

One way to do that is by filtering on the IPEnabled attribute. When this attribute is Truewe can be sure that an active IP address is tied to that instance. You can see that this returns the IP address but it's not a simple string like we need.

It's a tuple. We can consolidate that data type to convert it into a simple string by using a string's join method. We've now got the code built to pull each of the individual components.

python inventory script

Finally, we need to pull all of this information together into a single Python script that will return everything at once. This small report can be improved quite a bit but now that you have a foundation built, you now have the ability to manipulate the output or add other attributes that may be necessary for your particular scenario!

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Adam the Automator.In our previous articles, we have seen how Ansible works? Ansible works against multiple systems in your infrastructure at the same time. Often a user of a configuration management system will want to keep inventory in a different software system.

Most infrastructure or systems can be managed with a custom inventory sources likes files, database, cloud scripts…etc. Ansible easily supports all of these options via an external inventory system. Ansible will accept any kind of executable file as an inventory file, so you can build your own dynamic inventory however you like, as long as you can pass it to Ansible as JSON.

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For more information, please visit official documentation of dynamic inventory. For more information, please visit official documentation of developing dynamic inventory. To create a custom dynamic inventory script for demonstration purposes, we have implemented a python script which gets the data from MySQL and will output JSON to stdout. Ansible will use it as an inventory source as long as it returns a JSON structure with the —list option.

Sample Python script:. All the files mentioned in these dynamic inventory examples are available in the ansible-dynamic-inventory-mysql GitHub repository. More Posts - Website. Follow Me:. An automation enthusiast who presently working as DevOps Engineer.

More Posts - Website Follow Me:. Ansible: How to create Ansible Role. Ansible for DevOps : Complete Book. Ansible role for Elasticsearch and its installation on CentOS 7.Add counter that will log who has downloaded the invoice and how many times the invoice has been downloaded.

The design was created over the Fall - Spring academic period. The application uses Python 3. Navigation bar of index page:.

python inventory script

Login page:. Store manager is a web application that helps store owners keep track of their inventory and flow of sales. Simple django-based inventoring app, with focus on personal things. An Inventory Management Tool using which you can keep a track of all the inventories and can request for inventories.

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Curate this topic. To associate your repository with the inventory-management topic, visit your repo's landing page and select "manage topics. Learn more. Skip to content. Here are 43 public repositories matching this topic Language: Python Filter by language. Sort options. Star 1. Code Issues Pull requests. Open website problems - broken links, mismatching claims, typo.

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Open dates in Operations. Open How to use the reports template to export custom reports? Star Open Add extra playbook examples. Updated Jul 21, Python. A Inventory management system written in DJango. Updated Aug 11, Python. Updated Apr 23, Python. Open Add wait time between transfer submissions. Aninstance commented Dec 11, Add a mandatory wait time of n seconds in between stock transfer requests, to prevent duplicate transfer requests being actioned in the event of web browser issues and double button clicks.

Read more. Need screens to list, add, change, and delete product categories.

python inventory script

Include requirement that the user must be logged in to use these screens. Include link on index page to get to the list screen. Open Manual box checkin needs to be streamlined.We have updated the Device42 python discovery script [ download v1. Dependencies and usage tips are discussed below. The script depends on paramiko library released under LGPL license, enclosed with the repository.

Otherwise, You can download the package from Paramiko Pypi page and install it with. Lines You can make the script executable :. Success or failure message for uploading an IP for that machine are also displayed.

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Python auto-discovery script to get system inventory info for inux machines on the network August 24, pm Rick Johnston 0 Comments Auto-Discovery We have updated the Device42 python discovery script [ download v1. Updates Now detects attempts to discover non-unix machines Ensures supplied credentials logged onto the machine Can now define custom SSH Port Various minor bug fixes. Dependencies We have tested this script with python 2. There are multiple ways you can install paramiko. If you have pip setup on your system, you can just do: sudo pip install paramiko Otherwise, You can download the package from Paramiko Pypi page and install it with sudo python setup.

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Required changes in the script. Most of these are self-explanatory, but lets talk about password vs. Optional changes in the script. LINES are optional settings for the script. Running the script.If you use custom inventory scripts, migrate to sourcing these scripts from a project.

Tower includes built-in support for syncing dynamic inventory from cloud sources such as Amazon AWS, Google Compute Engine, among others. Tower also offers the ability to use a custom script to pull from your own inventory source. With the release of Ansible Tower 2. To manage the custom inventory scripts available in Tower, click the Inventory Scripts icon from the left navigation bar. To add a new custom inventory script, click the button.

Enter the name for the script, plus an optional description. Then select the Organization that this script belongs to.

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You can then either drag and drop a script on your local system into the Custom Script text box, or cut and paste the contents of the inventory script there. You can write inventory scripts in any dynamic language that you have installed on the Tower machine such as shell or python. They must start with a normal script shebang line such as! They run as the awx user. Generally, they connect to the network to retrieve the inventory from other sources.

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When enabling multi-tenancy security refer to Security for detailsthe inventory script will not be able to access most of the Tower machine.

For more information on dynamic inventory scripts and how to write them, refer to the Intro to Dynamic Inventory and Developing Dynamic Inventory Sources sections of the Ansible documentation, or review the example dynamic inventory scripts on GitHub.

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And running ansible script for getting dynamic inventory from AWS and it works great with python2. But I'm changing it to python3 and this is causing me issues. Getting warnings and unable to parse it. Now with python3, I'm getting this error: env: can't execute 'python': No such file or directory.

Learn more. How to run ansible inventory script with python3 Ask Question. Asked 7 days ago. Active 7 days ago. Viewed 31 times.

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Getting warnings and unable to parse it In python2 I was able to run the python script this way. Note that the implicit localhost does not match 'all' Python3 apk --update --no-cache add python3 py3-setuptools pip3 install --upgrade pip pip3 install awscli ansible boto chmod ec2. Diego Diego 1 1 gold badge 7 7 silver badges 28 28 bronze badges. The problem is with the shebang line of the python script.

Can you post the first line of your ec2. Or side step that discussion entirely and just make a wrapper: echo 'exec python3 ec2. Yes, easy fix -- Change python to python3. Active Oldest Votes. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password.

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python inventory script

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IT insights. Basic details of your computer like operating system and version, memory, network adapter and hard drive are never stored in one central location.

You always have to go clicking around for it. To do this, we'll be using Python 2. This one is a little tricky. Next up is total RAM. There are few ways to do this, but the best way seems to be to use the psutil module.

This time no external module is available. We can use the socket module. The socket module has a gethostbyname method which does a name lookup. To do that, we can first get the hostname of the local computer using the gethostname method.

Finally, we need to pull all of this information together into a single Python script that will return everything at once. Of course, you can spice this up as much as you want, but this template will give you a great head start in building a useful computer inventory script in Python on Linux or MacOS. Topics: IT insights. Adam Bertram is a year veteran of IT. Adam focuses on DevOps, system management, and automation technologies as well as various cloud platforms.

He is a Microsoft Cloud and Datacenter Management MVP and efficiency nerd that enjoys teaching others a better way to leverage automation. IT support community for network engineers, IT professionals, Architects and system administrators. Free Trials.


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