We suggest: Collection amazon.aws is installed. AWS related modules and plugins supported by the Ansible community are in the community.aws collection. It also relies heavily on the tag systems that are part of the cloud providers' APIs. Step 4:- Create .yaml file . . When I run ansible-inventory --graph, Ansible returns my instances as . In its most basic form, an inventory provides host information to Ansible so it can trigger the tasks on the right host or system. In this article we'll be launching a Web server with AWS EC2 instance using ansible, in this demonstration main focus will be Dynamic Inventory. RPM package for Ansible dynamic inventory EC2. Navigating to the "details" of this inventory we have created, we can edit the sources for our inventory. To successfully make an API call to AWS, you will need to configure Boto (the Python interface to AWS). Follow edited Oct 26, 2020 at 20:07. synth45. For AWS EC2, this takes the form of an external python script and ini file that can be called via the --inventory (or --i) flag: ansible -i ec2.py -m ping By default, the ec2.py script will create a large number of groups that can be used directly by Ansible's hosts field, including groupings by region, AMI, and tags. Now, that we have our inventory pointed to the "Dynamic Inventory" file, let us try to ping all our EC2 instances. Run the below command to install the boto3 library. To specify a. entry documented in ec2.ini. 5. For this reason, you can use the EC2 external inventory script. Before going into Ansible, we want to make sure that we can connect to the EC2 instance from the host machine via SSH: ssh -i my_ec2_key.pem ubuntu@my-ec2-host-or-ip. $ ansible-inventory --graph -i inventory_aws_ec2.yml Note: When we use dynamic inventory, all non-alphanumeric characters in group names and host names are changed with an underscore (_). I'm successfully creating EC2 inventory dynamically and running roles against the instances that are created to configure everything, but I need to set a straightforward hostname for each one. {yml|yaml}. create ec2.ini with crdentials to connect to aws. So, here the roles of Dynamic Inventory come into play. Contribute to satyasure/ansible-dynamic-inventory-aws development by creating an account on GitHub. 2. AWS EC2 using the Boto library. The sample configuration above uses Ansible's built-in AWS EC2 inventory plugin and includes a few basic parameters for connecting to the AWS API. EC2 inventory plugin ignores all other files. It will try to ping all the hosts mentioned in the CSV. . Enter a name (#1) for the new inventory, click "SAVE" (#2), and then click on "SOURCES" (#3). It gives you the ec2 instance details dynamically to manage the AWS infrastructure. So, sit back and relax, while the playbook runs. Step 1: Configure the ansible.cfg file. . Dynamic inventory is an ansible plugin that makes an API call to AWS to get the instance information in the run time. Ansible version compatibility In the ansible.cfg file, search for [inventory], comment out the default enable_plugins and make a new one that is equal to aws_ec2 5. AddThis Utility Frame The Inside Playbook Using ansible and dynamic Amazon EC2 inventory management on #AWS February 3, 2015 by Dan London Brandon Chavis, an AWS Partner Solutions Architect, has a great post over on the AWS blog titled " Getting Started with Ansible and Dynamic Amazon EC2 Inventory Management" today. ansible aws_ec2 dynamic inventory plugins EC2 instances public ip AWS EC2 API API call . $ mkdir -p ~/bogo/inventory $ cd ~/bogo/inventory First, install python3 if you haven't installed it yet. sudo pip3 install boto3. . https://raw.githubusercontent.com/ansible/ansible/devel/contrib/inventory/ec2.py My experience has been with ec2.py, a dynamic inventory provided by Ansible for managing hosts in AWS. The location of the inventory can be referenced at runtime with the --inventory-file (-i) argument, or by defining the path in an Ansible config file. You can run. 1. Ansible has an alternate way of managing inventory called dynamic inventory. Issue Type Bug Report Component Name amazon.aws 4.0.0 Ansible Version $ an. Its a recommended security practice. From the post: In this demo, we will utilize Dynamic inventory feature of Ansible to track the details of newly created instances and deploy a sample HTML website to these EC2 instances. The following example shows a good way to do this. Fill in the fields as follows, then click "SAVE" (#8) NAME (#1) - Enter a meaningful name Dynamic Inventory Copy the content of ec2.py and ec2.ini from github inventory scripts and create new file on the controller using the same content. $ sudo yum install -y python3 Install "boto3" $ sudo pip3 install --user boto3 Create a file named inventory_aws_ec2.yml in the project directory. For this, we can show off just a little bit and embellish the static hosted site across NGINX. Request custom software solutions for business & personal use. Note: The file name needs to be ended with aws_ec2.yaml/yml. We provide a plethora of technical services such as Website Development, Productivity App Development (Notion, GoodNotes . Inventory plugins take advantage of the most recent updates to the Ansible core code. (Ireland) of Amazon EC2. The EC2 inventory plugin configuration file name MUST have a .ec2.yaml or .ec2.yml suffix. pip install ansible-ec2-inventory Usage-----### As a script ansible-ec2-inventory --config ec2.ini *Note:* if you want to provide a boto profile, prefix the command with `AWS_PROFILE=myprofile`. 2. sample ec2.ini [profile staging . mkdir -p dynamic_inventory cd dynamic_inventory vi aws_ec2.yml Finally, run the below command to verify that Ansible . Synopsis Get inventory hosts from Amazon Web Services EC2. IAM role with admin access #4. It enables you to set and authorize user actions on a granular level. Currently, I'm only using an aws_ec2.yaml file as my inventory and variable source of truth. Dynamic inventory. Now, in this article I will focus on AWS Cloud, In the same way, we can also able to configure it for another purpose also. Then, altering the inventory setting in ansible.cfg: . Sorted by: 2. Configuring Ansible to use ec2.py as the inventory resource. This package provides build files for a RPM package including the dynamic inventory script released with Ansible 2.9 upstream branch. I have Ansible set up with the aws_ec2 plugin (not using the python script as it's been too problematic). EC2 instances stop . Ansible Playbook to create a new EC2 instance. The script dynamically queries AWS for all the EC2 hosts containing specific AWS tags, belonging to a particular Security Group, Region, Availability Zone, and so forth. Switch inventory source in ansible.cfg file within /etc/ansible 4. Best practice: its recommended you create a read only user and use the iam keys for the same with ansible. Basically, what we can do is pass in an alternate inventory source using the '-i' option. The aws_ec2 plugin is a great way to manage AWS EC2 Linux instances without having to maintain a standard local inventory. 1. From @alephgamma on Jul 04, 2022 20:38 Summary I have a new control-node and I can no longer run an aws_ec2 dynamic inventory. Create /ansible/ansible.cfg for configuring Ansible to use the dynamic inventory. This package provides build files for a RPM package including the dynamic inventory script released with Ansible 2.9 upstream branch. Ansible #2. Configure AWS EC2 dynamic inventory with the following: Create a new file called aws_ec2.yaml in your text editor, and populate the file with the below content. Make sure to replace the regions, aws_access_key_id, and aws_secret_access_key parameter values with your AWS region(s) (e.g., us-east-2) and keys.Ansible will use this inventory file to pull all available hosts in the region(s) you specify, apply . Open the. Let's show a static inventory > example though. Since each region requires its own API call, if you are only using a small set of regions, you can edit the ec2.ini file and comment out the . Step 3: Dynamic inventory. Ansible/AWS dynamic inventory -- How to create groups based on tags? Write an Ansible inventory plugin. Instead of a static CSV file, we can have a database where all the hosts and related details are getting updated dynamically. When you are using Ansible with AWS, maintaining the inventory file will be a hectic task as AWS has frequently changed IPs, autoscaling instances, and much more. To add an inventory, we need to provide a name and organization. The inventory in Ansible is dynamic, which means Ansible itself figures out what resources-servers-exist at runtime. Thanks to @KonstantinSuvorov for helping out with that! However, there is an easy solution called ansible dynamic inventory. On the Webserver only SSH is allowed for bastion Host. python3 --version. Example: AWS EC2 External Inventory Script If you use Amazon Web Services EC2, maintaining an inventory file might not be the best approach, because hosts may come and go over time, be managed by external applications, or you might even be using AWS autoscaling. Ansible Tower is a web-based UI that you can use to define role-based access controls (RBAC), monitor deployments, and audit events. Using dynamic inventory with ec2. . Here are some possibilities: Convert inventories from legacy formats into Ansible. We are going to select the "Amazon EC2" source. Mention the path to the directory created for installing dynamic inventory module under inventory keyword in the configuration file. Adding a --vars switch will also display some information about each host: python >= 3.6 boto3 >= 1.16.0 botocore >= 1.19.0 Parameters Notes Note Create a dynamic inventory directory under your ansible deployment, cd into the directory and create an inventory file aws_ec2.yml. I believe you used Ansible for your daily operations and have some knowledge on. Once you are done with this blog, you will know exactly what it is. This lesson covers what is dynamic inventory in ansible, why dynamic inventory is needed, It also covers step by step ways to configure dynamic inventory and. Create aws_ec2.yml in /etc/ansible 3. Part 1: NGINX, OpenSSL, and the static site all bundled into Docker. This is in contrast to having a static inventory, sometimes called a local state, which is a single source of truth for everything infrastructure-relatedif it isn't there, it's not real. Ansible supports two ways to connect with external inventory: Inventory plugins and inventory scripts. ### As a Python module Example: ``` {.python} from ansible_ec2_inventory import Ec2Inventory import json def main(): # get path of ec2.ini path = os . Dynamic Inventory (on it's own) Another solution I evaluated was Terraform Dynamic Inventory for Ansible. The easiest is to use Ansible's -i command-line option and specify the path to the script after marking it executable: ansible -i ec2.py -u phoenix us-east-1d -m ping The second option is to copy the script to /etc/ansible/hosts and chmod +x it. One of the core components of Ansible is inventories. 3. To working with AWS dynamic inventory, we need boto3 and botocore python modules.