Cloudformation Userdata Powershell Json

PowerShell containers two key commands to work with JSON:. Requirements. Unfortunately CloudFormation is not as versatile as AWS would like you to believe, though it does constantly improve. Select credentials. Cloudformation will also add some tags to every resource in the stack. I inherited a template, once, that used join to assemble a JSON string with half a dozen key/value pairs and it was unreadable. yaml does not require the assets to be re-rendered, but if any of the user data files or the stack template are modified, the cluster assets must be re-rendered with kube-aws render. 3 (178 ratings) Course Ratings are calculated from individual students’ ratings and a variety of other signals, like age of rating and reliability, to ensure that they reflect course quality fairly and accurately. I'd like to give a first look at utilizing YAML for CloudFormation Templates (CFTs) and discuss how this feature might be incorporated in the architect and engineer's toolbox for AWS. com allow you to send in a startup script using the EC2 user-data parameter when you run a new instance. IMHO one of the most important missing pieces in CloudFormation is not having the ability to explicitly specify a SLEEP or WAIT function. ps1; you can send me a message and I will send the file. This post walks through making a custom resource in Python. "/opt/aws/bin/cfn-init -v --stack my-stack --resource MyLC --region eu. I’ve actually used CloudFormation before in the past, but always describing my stack in JSON. Combined with the validation built into VaporShell, this means you can build clean templates quickly. It's great for tutorials, testing new libraries, sharing code examples,. UserData on Windows can call two different shells, well, the two that exist on Windows (except for Bash, for now?). Stack is defined using YAML template that contains 4 resources to be. CloudFormation is a json template that specifies the state of the resource(s) that you want to deploy i. Hi Readers, Here is the custom button that you can use in your script for getting input from users. The JSON output from different Server APIs can range from simple to highly nested and complex. Consider when a user data script needs to be added to a CloudFormation template. I’d like to give a first look at utilizing YAML for CloudFormation Templates (CFTs) and discuss how this feature might be incorporated in the architect and engineer’s toolbox for AWS. YAML Validator also works offline on latest versions of Chrome, Firefox. This template allows you to redeploy the stack and track any changes with an version control system such as git. So in the spirit of infrastructure as code, I thought, there is no better time to try out AWS CloudFormation to describe my EC2 instances. CloudFormation requests the Lambda service to execute the function identified by the ServiceToken property in the template. We will be using AWS CloudFormer to create template of existing infrastructure. PowerShell may seem an odd choice - while the PowerShell module for AWS is very good, I'm pretty sure it's development is behind the normal AWS CLI (Command Line Interface), that can be used from any platform. My CSV file has the following objects. Export user data from Microsoft Planner. To use an API, you make a request to a remote web server. Add a tasks. YAML to JSON, YAML to XML, YAML to CSV. The main things you need to keep in mind when building a template are. Today we have guest blogger, Doug Finke. This article series was rewritten in mid 2017 with up-to-date information and fresh examples. Using a support ticket service as my. Copy the CloudFormation template below and save it locally on your drive as ecs_cluster. This article describes how an Office 365 global admin can export data for a specific user from Microsoft Planner. The order in which resources are deployed is determined by CloudFormation. when to prefer one over the other JSON. Due to the pure JSON syntax of a CloudFormation stack, attempting to make this readable by inserting line-breaks and the like will cause the parser to throw a malformed JSON exception. User data is limited to 16 KB. This video demonstrates how to convert to/from the JavaScript Object Notation (JSON) format using PowerShell. Note that by following this guide you can incur charges. The benefit is the parameters and tags are pre-defined. And then the userdata script should work. To help out with this, Michael Sorens begins a series that shows you how to import data from most of the common file formats and sources. The result is yet another Join-Object. JSON’s foremost design goal is simplicity and universality. Create AWS CloudFormation Templates with Visual Studio - Kloud Blog 0. However JSON objects have several advantages over XML and we are going to discuss them in this tutorial along with JSON concepts and its usages. ## cloud-init Cloud-init will execute whatever is defined in "UserData". Also, I do not really have an OU, so do I just use OU= and then blank, or can I just get rid of that whole part? I also saw where you had a line you suggested for pointing to your DNS server, was that in the User Data section, or the PowerShell script? As you can probably tell, I really new to AWS. Includes checking valid values for resource properties and best practices. Am sending the necessary script for installing chef client through the parameter UserData (HTTP activity). Stack will consist of EC2 instance and RDS for MySQL. This script is a bash script that you can do anything you want with it. When an instance has an IAM role, code that runs on the instance (including our PowerShell code in UserData) is authorized to make calls to the AWS APIs that are granted in the role. These cmdlets in this module provide options for reporting available template information, creating your PowerShell script, creating an entire deployment package and the creation of the Lambda function itself. The resources within the template can include Amazon EC2 instances, Elastic Load Balancers, and more. We work with several organizations that have embraced YAML and will be telling their stories in an upcoming blog. You can use the ec2 option in the aws command to manipulate your ec2 instances. Home of the Chromium Open Source Project. AWS CloudFormation - Tips for the Novice (How to perform a task once per launch - not once per instance) Here's the issue - we want to launch a stack that includes an RDS database. Lastly, we can install the AWS Lambda PowerShell Core module. Here’s how I like to explain CloudFormation to people: You tell CloudFormation what to provision. AWS - CloudFormation Templates. A couple of months ago a colleague and I decided to try to build a demo-environment for SharePoint. Last week, I made a set of CloudFormation custom resources to issue AWS Certificate Manager certificates. We will be using AWS CloudFormer to create template of existing infrastructure. The application stack imports the subnet id. Automate CloudFormation stack creation using Python. In response to this, I created the YAML snippet below. JSON is text, and we can convert any JavaScript object into JSON, and send JSON to the server. AWS CloudFormation Templates - Sample CloudFormation templates, solutions, and snippets CloudFormation::Init Documentation Using AWS CloudFormer - Introduction and walkthrough for AWS CloudFormer List of Services Supported in CloudFormation JSON Formatter and Validator - Free tool for validating JSON templates How to Use Nested Stacks - How to modularize your CloudFormation stacks. 1 Windows PowerShell Environment. Note that the Amazon Machine Image (AMI) ID is … Continue reading. Throughout the Jive API, returned JSON objects contain a field called "resources. The heat-api component provides an OpenStack-native ReST API that processes API requests by sending them to the heat-engine over RPC. Stack is a term Cloudformation uses to describe all the AWS resources defined in a Cloudformation template. Auto Scaling ensures you have the correct number of EC2 instances available to handle your application load. Technologies supported: Docker Containers along with Chef and Puppet Azure Resource Manager, Azure Container Service CI/CD, Atomic, JSON/REST and simple authentication Bitbucket Git. CloudFormation Template Basics. Added in the private function Format-Json and set the default output to be cleaned up in Export-VaporShell; 1. Enter the URL of an existing template in the Amazon S3 Template URL text box. Ordering or timing issues - CFN is pretty good at determining dependencies, but occasionally thi. Nelson has 24 jobs listed on their profile. This online tool allows you to convert a JSON file into an XML file. This limit applies to the data in raw form, not base64-encoded form. Except as otherwise noted, the content of this page is licensed under a Creative Commons Attribution 2. User data and cloud-init files are super handy for configuration of ec2 instances from CloudFormation templates without having to roll your own AMIs through a build pipeline. 0 on Windows 10 is the ConvertFrom-JSON cmdlet. So I wrote a quick PowerShell function that merges two sets of data, found a more flexible but slow alternative from Lucio Silveira, and settled on extending a nice modification from Dave Wyatt. …But what we're going to do is use CloudFormation instead. In this Ask the Admin, I’ll show you how to go beyond what is capable with the get-content cmdlet and parse a comma-delimited text file. You need the name of this stack if you remove the cluster. CloudFormation vs OpsWorks. CloudFormation requests the Lambda service to execute the function identified by the ServiceToken property in the template. One reason it is cool is that it will convert a Java Script Object Notation (JSON) string into a custom Windows PowerShell object. AWS CloudFormation simplifies provisioning and management on AWS. UPDATE: AWS Cloudformation now supports YAML. PLEASE, PLEASE, PLEASE make this a priority!. To create templates we use a JSON file or AWS CloudFormation Designer. user-data Scripts The Ubuntu and Debian EC2 images published on https://alestic. Q: I’m just getting started with PowerShell. The ability to add scripting code, like PowerShell makes scripting of deployments incredibly flexible. We can validate them using the AWS CLI using this command: aws cloudformation validate - template — template - url. The template uses the JavaScript Object Notation (JSON) format. ps1 -Schedule. JSON (JavaScript Object Notation) is a common data sharing format that can describe complex relationships. I gave a presentation at the Atlanta PowerShell User Group meeting yesterday (May 16, 2017) on Visual Studio Code and Powershell. YAML形式が欲しい場合、CloudFormation Designerを起動してJSONからYAMLへ変換します。 CloudFormation Designer. The userdata is the user custom content exposed to the guest instance by the currently deployed and running cloud infrastructure. The size of your templates will be much smaller. Viewing AWS CloudFormation and bootstrap logs in CloudWatch - Kloud Blog 0. The problem you are encountering is passing a JSON string as a parameter to AWS CloudFormation via the AWS CloudFormation Stack task, which expects those parameters to be passed into the Parameters field as a JSON string in turn, e. Michael Wittig – 23 Mar 2016. PLEASE, PLEASE, PLEASE make this a priority!. For more on using the resources for ACM certificates, check out this post. Using CloudFormation, you can spin up new EC2 instances, load balancers, S3 buckets, RDS databases and more. It’s a strict superset of JSON, with the addition of syntactically significant newlines and indentation, like Python. Below is the script that I have so far, the problem I've got is that I don't know how to turn the JSON output which I get from the AWS CLI dynamoDB into the variables. Bootstrapping with AWS CloudFormation. The user data is defined and also the tags are created. In JSON there was no elegant way to express this. A CloudFormation template is a JSON-formatted text file that describes your AWS infrastructure. This protocol is relatively simple: Parameters are passed to script as JSON on stdin. The command is aws. The Read-Host cmdlet reads a line of input from the PowerShell console. AWS' CloudFormation templates are Amazon's way to make leverage infrastructure as code in an AWS environment. Setting up an Apache server using AWS CloudFormation This a is a brief and simple guide to spinning up an instance, installing Apache, and writing output to a webpage. Using CloudFormation, Packr, etc. Quick recap on the first post. The AWS Tools for Windows PowerShell are a set of PowerShell cmdlets that are built on top of the functionality exposed by the AWS SDK for. If you stop an instance, modify the user data, and start the instance, the new user data is not executed automatically. Someone recently was asking for an AWS CloudFormation template, in YAML format as opposed to JSON, that would deploy an EC2 instance running Windows Server, and supported a PowerShell-based UserData script. There are multiple ways to automate CloudFormation stack creation. We will be using AWS CloudFormer to create template of existing infrastructure. You can modify the template files to customize your web service. The UserData property usually consists of many lines. Automate CloudFormation stack creation using Python and PowerShell. JSON input - This file contains the inputs that you want to pass to AWS CloudFormation template that is being tested. We wanted to be able to take a new fresh installed Windows 2003 (or 2008) server, and just run a PowerShell script and then the environment should be up and running. Sample Python and PowerShell scripts are provided to create ArcGIS Enterprise. Last week, I made a set of CloudFormation custom resources to issue AWS Certificate Manager certificates. YAML vs JSON. userdata on Windows from CloudFormation CloudFormation uses json format to describe your environment / infrastructure. {% raw %} Templates with. CloudFormation (from here on, "CFN") is a powerful member of the AWS toolbox that allows you to declare every part of your infrastructure in JSON and "load" it into AWS, which. The troposphere library allows for easier creation of the AWS CloudFormation JSON by writing Python code to describe the AWS resources. Then in a powershell command prompt just do the command. Requirements. Step 2: Building your JSON input file. For the custom AMI's user data are already disabled to enable it run following command in powershell. We can configure everything we need in AWS like VPC, EIP (Elastic IPs), ELB(Elastic Load Balancers), EC2 instances and anything in the AWS universe and beyond. The exported data will include data about the user contained in Planner, and also data contained in plans that the user was a part of. cfn-init / cloud-init metadata • run individual commands or powershell. CloudFormation. You might also enjoy Cloud Academy's course on How to Use CloudFormation for AWS Automation. Maintaining and supporting current Production and Test infrastructure Assist customers in simplifying the architecture by automation using JSON ARM templates,PowerShell& Azure CLI. YAML being bit more user readable, is widely used now. The definition of the S3 resource would be done in the s3. The script then displays the path to the CloudFormation template that is generated to the current working directory. Also, the web URL is generated in the output. Setting up an Apache server using AWS CloudFormation This a is a brief and simple guide to spinning up an instance, installing Apache, and writing output to a webpage. The instance is launched using the parameters defined above. The user data is defined and also the tags are created. Sample Python and PowerShell scripts are provided to create ArcGIS Enterprise. You can use the ec2 option in the aws command to manipulate your ec2 instances. com irc stevebaker #heat. The steps here use the Azure CLI command (run on Powershell or on the DOS command prompt) to create the custom role with queryFlowLogStatus permission. For more information, see Using Report APIs. d/ mappings/ resources/ (Currently, the pre-processor only supports AMI mappings. CloudFormation templates that use the YAML format will reduce the amount of code. For example, suppose you create a discussion. The default for this approach assumes that a node can access the Chef website so that it may download the Chef Infra Client package from that location. We use JSON to transfer the data from server to client and client to server. AWSを勉強中の人です。 18/12/10. One reason it is cool is that it will convert a Java Script Object Notation (JSON) string into a custom Windows PowerShell object. Almost all of these steps can be performed from the command line on the computer and can therefore be scripted. The JSON for an AMI mapping is:. You press a button. It's pretty simple to add support to CloudFormation for just about any resource. The ability to add scripting code, like PowerShell makes scripting of deployments incredibly flexible. The inbound and outbound rules are defined. user_data_base64 - (Optional) Can be used instead of user_data to pass base64-encoded binary data directly. Microsoft Scripting Guy, Ed Wilson, is here. The resources within the template can include Amazon EC2 instances, Elastic Load Balancers, and more. Getting Last Logon Information With PowerShell. Application software configuration using Heat Steve Baker Senior Software Engineer, Red Hat [email protected] I was attempting to use AWS CloudFormation to define the infrastructure of my current project and ran into the issue of how to include the User Data section in the CloudFormation JSON definition. Added Update-VSResourceFunctions. A CloudFormation template at a minimum must contain a "Resources" section. The main things you need to keep in mind when building a template are. In Bash, we can pipe the output to Python or jq to select the value we want from the returned JSON object. AWS Cloudformation: How to reuse bash script placed in user-data parameter when creating EC2? (Linux) - Codedump. json’s dependencies and --save-dev to add it to devDependencies. When creating an AWS EC2 instance, there is a User Data section where you can include scripts that will be run immediately upon instance creation. In response to this, I created the YAML snippet below. Automate CloudFormation stack creation using Python and PowerShell. "Modern" also means simplified, that's why I will give you an example on how to setup Windows 10 with just the original source (ISO) and a few scripts… Like in the "old" days, where unattended setup was the standard way to setup an OS. もうちょっと読みやすくしたいので、時間ができたら手を付けるかもしれません。. You can pass into the script parameters that the cloud formation has, so that the script can take the specific configuration into consideration. This script can be called by a monitoring server, or manually. A compliance test suite. Solution: To detect bugs in cfn-init during the deployment, the UserData script needs to be changed. Join GitHub today. There are multiple ways to automate CloudFormation stack creation. The requirements were to use a VPC and all the general security measures that Amazon has to offer around it. And finally, we use a similar CloudFormation function ("Fn::If") to see if the stack creator selected QA as the environment. Stack is defined using YAML template that contains 4 resources to be. Includes checking valid values for resource properties and best practices. The AWS Tools for Windows PowerShell enable you to script operations on your AWS resources from the PowerShell command line. What is taskcat? taskcat is a tool that tests AWS CloudFormation templates. Before learning how to create a CloudFormation stack, it is important to learn some salient aspects of CloudFormation. The convenience methods withVPC, withAZ and withSubnet each take a few parameters, internally create a resource of the specified type and then take a block or function passing that resource along. The ForEach-Object function can be used to work with objects directly. Stack is a term Cloudformation uses to describe all the AWS resources defined in a Cloudformation template. We are working with the latest Windows Server 2019 version aka 1809, We use Standard version with GUI, but you can run all this step in a Windows Server Core this is more secure to my mind, but you need have a remote Windows 10 with RSAT. ## cloud-init Cloud-init will execute whatever is defined in "UserData". I'm creating a cloudformation script to use above AMI (step 5) to create an instance. I gave a presentation at the Atlanta PowerShell User Group meeting yesterday (May 16, 2017) on Visual Studio Code and Powershell. This script is a bash script that you can do anything you want with it. 0 on Windows 10 is the ConvertFrom-JSON cmdlet. The URL should point to an S3 bucket containing a CloudFormation template in JSON format. Sceptre User Data is accessible within Templates as sceptre_user_data. CloudFormation (CFN) is infrastructure as a code service of AWS. JSON syntax is basically considered as a subset of JavaScript syntax; it includes the following − Data is represented in name/value pairs. A CloudFormation template at a minimum must contain a "Resources" section. In other words, CloudFormation is the AWS equivalent of writing a vagrantfile for vagrant. So what is YAML anyway. Put your stack tags and parameters into json files and use this bash wrapper script to create the cloudformation stack. Someone recently was asking for an AWS CloudFormation template, in YAML format as opposed to JSON, that would deploy an EC2 instance running Windows Server, and supported a PowerShell-based UserData script. knife bootstrap¶. 2018/7にjoin。 最近の好みはサーバレスです。なんでもとりあえず試します。. Stack is defined using YAML template that contains 4 resources to be. Michael Wittig – 23 Mar 2016. In JSON there was no elegant way to express this. troposphere also includes some basic support for OpenStack resources via Heat. The AWS Tools for Windows PowerShell are a set of PowerShell cmdlets that are built on top of the functionality exposed by the AWS SDK for. Thank you - rename the computer works from above srcript - what is not working - is not pulling or retriving the powershell script from github - so the windows server does not get promoted to active directory - in terms of erros not much i can see on ec2config logs - does not tell me much about the user data - i cant find anywhere how i can see the errors. ps1 -Schedule. Q: I’m just getting started with PowerShell. What is taskcat? taskcat is a tool that tests AWS CloudFormation templates. If you stop an instance, modify the user data, and start the instance, the new user data is not executed automatically. Bootstrapping with AWS CloudFormation. If you’re implementing Lambda-backed custom resources in your CloudFormation stack, review the best practices discussed in the AWS Support Knowledge Center. Before learning how to create a CloudFormation stack, it is important to learn some salient aspects of CloudFormation. you want to deploy an AWS EC2 micro t2 instance in us-east-1 as part of VPC 192. See Tools for Amazon Web Services in the AWS help for information on other automation options. For example, suppose you create a discussion. This did not work since I can only define one EC2 instance per Template file. This will cause the script to exit with a non-zero exit code. User data is limited to 16 KB. In other words, CloudFormation is the AWS equivalent of writing a vagrantfile for vagrant. Create a stack (default): You can use one of the templates AWS provide to get started quickly with applications Create a StackSet: A StackSet is a container for AWS CloudFormation stacks that lets you provision stacks across AWS accounts and regions by using a single AWS CloudFormation template. The AWS Tools for Windows PowerShell enable you to script operations on your AWS resources from the PowerShell command line. I just love these. As infrastructure grows, this bunch of JSON documents can get difficult to manage. For example, you can include template implementation details about specific resources, as shown in the following snippet:. The process to mount the EFS filesystem must be added to the CloudFormation template. You can use Amazon CLI too l to check syntax error, but I prefer to use CloudFormation Designer to check syntax error, just go to AWS console -> cloudformation -> Design template. msu to the EC2 instance from an S3 bucket. When I first started looking at CloudFormation I put all three nodes into the same Template file. The application stack imports the subnet id. Reviewing these designs will give you better insight into your AWS CloudFormation code. Learn CloudFormation serves as a fundamental guide to kick-start your journey on CloudFormation. But below you'll see how I line up the userdata section to export the Bucket, any Secrets/Data needed. bat file and call cmd. Templates can include several major sections:. Traditionally, you would rewrite the script by hand in a valid JSON format. Nick Hardiman explains what you can expect to see as part of an AWS CloudFormation template. Syntactical. Before using a template, read the Readme file for the sample template you want to use. Solution: To detect bugs in cfn-init during the deployment, the UserData script needs to be changed. Also it reduces the number of lines when compared to JSON. That PowerShell script is also available below. JSON is text, and we can convert any JavaScript object into JSON, and send JSON to the server. CloudFormation. I thought I’d write a brief overview of how to use an External Provider to call a Powershell script. We work with several organizations that have embraced YAML and will be telling their stories in an upcoming blog. UPDATE: AWS Cloudformation now supports YAML. As you are wanting the checked values to be stored in an array, as [141, 167], here's how you would. For more information, see Using Report APIs. This post walks through making a custom resource in Python. json file extension are similar to files that use the XML file format. json' extension. Nick Hardiman explains what you can expect to see as part of an AWS CloudFormation template. It's pretty simple to add support to CloudFormation for just about any resource. JMESPath has a full suite of data driven testcases. The troposphere library allows for easier creation of the AWS CloudFormation JSON by writing Python code to describe the AWS resources. The Cloudformation scripts can be written using yaml or json language. In this tutorial we are going to explore three date/datetime pickers options that you can easily use in a Django project. If you want just one large list, simply read in the file with json. Stack is a term Cloudformation uses to describe all the AWS resources defined in a Cloudformation template. The main things you need to keep in mind when building a template are. Also, be on the lookout for an article with instructions on how to convert existing JSON CloudFormation templates into YAML. You just tell CFN your desired state of resources and it creates them in order while resolving dependencies. In this post, we introduce some of the new YAML features. User data is limited to 16 KB. Note that by following this guide you can incur charges. Bamboo does not parse variable content in any way, i. Nick Hardiman explains what you can expect to see as part of an AWS CloudFormation template. How to define JSON. yaml file, hosted in our artifact bucket. You can use Amazon CLI too l to check syntax error, but I prefer to use CloudFormation Designer to check syntax error, just go to AWS console -> cloudformation -> Design template. Launching the CloudFormation template. Open a text editor (such as notepad) and enter the following command in the JSON format to create a custom role. This was really ugly and confusing in the JSON days, and only slightly improved with YAML syntax. Someone recently was asking for an AWS CloudFormation template, in YAML format as opposed to JSON, that would deploy an EC2 instance running Windows Server, and supported a PowerShell-based UserData script. Enable the -e flag at the top of all scripts (except user data) as follows: #!/bin/bash –e. The convenience methods withVPC, withAZ and withSubnet each take a few parameters, internally create a resource of the specified type and then take a block or function passing that resource along. The main things you need to keep in mind when building a template are. ” These blueprint documents are written in either JSON or YAML form. Create a stack (default): You can use one of the templates AWS provide to get started quickly with applications Create a StackSet: A StackSet is a container for AWS CloudFormation stacks that lets you provision stacks across AWS accounts and regions by using a single AWS CloudFormation template. Thus, JSON is trivial to generate and parse, at the cost of reduced human readability. Manifest Json - posted in Virus, Trojan, Spyware, and Malware Removal Help: Hello. CloudFormation Template Basics. 3 (178 ratings) Course Ratings are calculated from individual students' ratings and a variety of other signals, like age of rating and reliability, to ensure that they reflect course quality fairly and accurately. User data is treated as opaque data and returned as is. Active 5 years, 1 month ago. One of the cool cmdlets in Windows PowerShell 5. 2) If you can write a powershell script, you can write a powershell script that loads up your. I use the below PowerShell function in all the UserData sections of all my CloudFormation documents (when building Windows systems). the content is always just a string. Note that the Amazon Machine Image (AMI) ID is … Continue reading. 1 deployment or ArcGIS Server 10. (For more details, see the tip at the end of this section. The exported data will include data about the user contained in Planner, and also data contained in plans that the user was a part of. If your infrastructure runs on AWS and you're not yet using CloudFormation, you should give it a go. From the template above you can see that after the machine is booted, cloudformation will run a script that sits on S3. The command is aws. You, Me, & CI/CD: Deploying Azure Analysis Services Tabular Models through Azure Pipelines. I recently published ec2metadata which provides a simple CLI and Python interface to the metadata of an Amazon EC2 instance. In this post, we introduce some of the new YAML features. AWS Power Tools: Advanced AWS CloudFormation and CLI 1. User data can either be rejected by a data validation rule (for example, an improperly formatted email address) or can even by changed by a data validation rule (for example, truncating input that exceeds the maximum number od characters). Cloudformation will also add some tags to every resource in the stack. Microsoft Windows PowerShell MVP, Doug Finke is the author of Windows PowerShell for Developers. I love the whole UserData option we have — injecting PowerShell code into an EC2 instance during its initialization, and love, that while we can do it in the AWS Management Console, we can do it with CloudFormation (CFN) too. I just love these. The example which I’m walking through is done on Windows 2012. These are rendered and should create a raw JSON or YAML CloudFormation Template. Use AWS SDK for Python. Solution: To detect bugs in cfn-init during the deployment, the UserData script needs to be changed. You have a decent familiarity with AWS CloudFormation syntax, especially the newer YAML format. Write templates in code with libraries like troposphere.