All Questions
Tagged with aws-cloudformation json
181
questions
30
votes
2
answers
21k
views
JMESPath JSON filter with multiple matches
I have a json block that looks a bit like this (have you guessed from AWS)
{ "Vpcs":[
{
"VpcId":"vpc-blabla1",
"OtherKey":"Value"
},
{
"VpcId":"vpc-blabla2",
"OtherKey":"Value"
...
- 632
29
votes
4
answers
27k
views
AWS: Cloud Formation: Is it possible to use multiple "DependsOn"?
Given i have this example template:
{
"AWSTemplateFormatVersion" : "2010-09-09",
"Mappings" : {
"RegionMap" : {
"us-west-1" : { "AMI" : "ami-655a0a20" },
...
...
- 7,048
29
votes
1
answer
16k
views
How to change default root EBS size in cloudformation? [AWS]
Considering there is less amount of documentation and solutions online for cloudformation I decided to address a common problem regarding changing default size of EBS volumes launched via ...
- 1,157
25
votes
5
answers
35k
views
How to specify JSON-formatted string in Cloudformation?
I have the following resource on my CloudFormation template to create a rule to run a Lambda function, from the AWS documentation:
"ScheduledRule": {
"Type": "AWS::...
- 5,364
24
votes
1
answer
22k
views
Can I use "Fn::Join" in "Parameters" of AWS Cloudformation json template
I want to use in Parameters of Cloudformation json template shortcut of some Policy/Loadbalancers tags name, like that:
"SomeScalingGroupName": {
"Type": "String",
"Default": {...
- 926
21
votes
5
answers
30k
views
AWS Cloudformation- How to do string Uppercase or lowercase in json/yaml template
I am working on AWS CloudFormation and I created one template in which I asked user to select Environment.
On the basis of selected value I created the resources. User have to select between DEV, QA, ...
18
votes
3
answers
14k
views
Trying to pass parameters from Master to child template
I'm trying to pass list parameters from master to child template, however I'm running into two errors.. These are my current parameters on the master template.
"Parameters": {
"ELBSubnets": {
...
- 627
16
votes
2
answers
13k
views
Cloudformation template error - Template validation error: Template format error: Every Mappings member Type must be a map
I have a cloudformation template.
It should create an EC2 instance, change the Adminstrator password and rename the server.
I am passing couple of parameters to the stack template. When I run it, ...
- 407
14
votes
4
answers
18k
views
Is it possible to get a VPC Id using AWS Cloud Formation?
Is it possible to obtain a VPC Id using Cloud Formation JSON?
Something like:
{ "Fn::GetAtt" : [ "MyVPCName", "VPCId" ] }
- 971
8
votes
3
answers
5k
views
AWS CLI- What is the syntax for assigning multiple values on a parameter
For example, I have this CF template that ask for these parameters
----- cftemplate.yaml -----
...
Parameters:
**Subnet:
Description: Subnet for the Instance
Type: 'AWS::EC2::Subnet::Id'
...
- 83
6
votes
2
answers
6k
views
How to run AWS ECS Task with CloudFormation overriding container environment variables
I was searching a way to run ecs task. I already have a cluster and task definition settings. I just wanted to trigger a task using CloudFormation template. I know that I can run a task by clicking on ...
- 233
6
votes
1
answer
20k
views
Template error: instance of Fn::GetAtt references undefined resource
I have this cloudformation template :
"InstanceProfileProd": {
"Type" : "AWS::IAM::InstanceProfile",
"Properties": {
"Path": "/",
"Roles" : [ { "Ref" : "InstanceRole"} ]
}
},
"...
- 1,175
5
votes
1
answer
1k
views
How to set a dynamic RoleMappings key for a IndentityPoolRoleAttachment in CloudFormation
I am building a stack to initialize a Cognito installation. As part of this I have setup user groups with associated roles. I need to set the Choose role from token option, allowing identities to use ...
- 591
4
votes
3
answers
9k
views
userData are not getting executed after launching the instance by cloudformation
I created a AWS cloudformation, which creates a launch configuration and an autoscaling group. In the user Data in the launch Config I have configured the file system mount target, and I installed the ...
- 4,976
4
votes
1
answer
8k
views
Error in the policyName when creating IAM Role by cloudformation
This is the role snippet:
"InstanceRole": {
"Type": "AWS::IAM::Role",
"Properties": {
"AssumeRolePolicyDocument": {
"Version" : "2012-10-17",
"Statement": [ {
"Effect": "...
- 1,175
4
votes
1
answer
2k
views
How to make a whole object in CloudFormation templates optional?
I'm making a Lambda function via CloudFormation template, and I'd like to make it optional to enter the information for the VpcConfig property. I've found articles like this one on how to make ...
- 1,650
4
votes
1
answer
8k
views
Pass stack tags to nested stack in Cloudformation
I'm easily able to pass parameters to a Nested Cloudformation Stack using AWS::CloudFormation::Stack, including referenced values:
"MyNestedStack" : {
"Type" : "AWS::CloudFormation::Stack",
"...
- 451
4
votes
1
answer
3k
views
Use Route53 template in cloudformation with Cloudfront
"DNS": {
"Type": "AWS::Route53::RecordSet",
"Properties": {
"HostedZoneId" : "Z058101PST6709",
...
- 109
4
votes
1
answer
3k
views
CloudFormation: Unresolved resource dependencies [Ec2Instance] in the Outputs block of the template
I am trying to create a EC2 instance using cloudFormation template.
I have written below JSON for this and trying to upload json using option in CloudFormation "Upload a template to Amazon S3".
But ...
- 187
4
votes
1
answer
4k
views
retrieve the cloudformation stack name from the lambda function
I invoke a lambda function from a custom resource in cloudformation template. This custom resource has a property : the name of the cloudformation stack. I need this property value in the lambda ...
- 4,976
4
votes
1
answer
613
views
CloudFormation Template - any way to get a Spot-Fleet-Request ID?
I'm attempting to create a single template that creates the following:
AWS::EC2::SpotFleet resource
2 AWS::ApplicationAutoScaling::ScalingPolicy resources (scale up, scale down)
Initially, my ...
- 61
4
votes
1
answer
22k
views
MalformedPolicyDocumentException when creating AWS::KSM::Key
I'm trying to create a KSM key to use it in the S3 service, but I get the MalformedPolicyDocument exception. Here is the resource:
"CustomerMasterKey":{
"Type" : "AWS::KMS::Key",
"Condition" : "...
- 4,976
4
votes
0
answers
3k
views
Docker Dynamic environment variable in ECS Task Definition container json
Currently we are working on a migration resilient project where we choose AWS ECS as a container orchestration choice. Here we got a interesting problem where we are trying to get a unique value for a ...
3
votes
5
answers
9k
views
If it possible connect Loadbalancers DNSname to Route53 using AWS Cloudformation template?
What I trying to connect is Loadbalancer DNS name to to Route53.
Lets look on example.
Here is Loadbabancer from template in Resource:
"RestELB" : {
"Type" : "AWS::ElasticLoadBalancing::...
- 926
3
votes
2
answers
6k
views
AWS CloudFormation User Data \; and new lines (JSON)
I am trying to create a CloudFormation EC2 deployment where a webserver is automatically deployed.
My current setup is as follows:
{
"AWSTemplateFormatVersion" : "2010-09-09",
"Description" :...
- 1,147
3
votes
2
answers
1k
views
Is there a way to populate an Amazon DynamoDB table from a CloudFormation template?
I need to create a DynamoDB table were one of the attribute values its passed as a parameter in a CloudFormation template:
The DynamoDB table should look like this:
PhoneNumber | OrderNumber
...
- 77
3
votes
1
answer
593
views
How do you conditionally change a string value to a number in JQ?
I am pulling a secret from SecretsManager in AWS and using the resulting JSON to build a parameters JSON file that can pass this on to the cloud formation engine. Unfortunately, SecretsManager stores ...
- 971
3
votes
2
answers
2k
views
Getting error in adding SSL certificate in CloudFront using CloudFormation (needs to be specified)
{
"AWSTemplateFormatVersion" : "2010-09-09",
"Parameters": {
"AlternateDomainNames": {
"Description": "CNAMEs (alternate ...
- 109
3
votes
1
answer
2k
views
AWS CloudFormation chaining functions
I have a template which is a Master Stack for our product. I'm in the process of changing all templates from JSON to YAML, employing the new "!if" type functionality. I originally had the troublesome ...
- 175
3
votes
1
answer
600
views
cloudformation failed to create subnets
I was trying to run a code and i had this error but cant identify the problem. i got the error message The CIDR '10.0.1.0/24' conflicts with another subnet (Service: AmazonEC2; Status Code: 400; Error ...
- 33
3
votes
1
answer
352
views
Value of property QueueConfigurations must be of type List
I am trying to write SQS triggers for my S3 bucket. I am running into an error saying "Value of property QueueConfigurations must be of type List." Is there something wrong with my ...
- 57
3
votes
1
answer
6k
views
MalformedPolicyDocument error while creating an IAM Policy
I'm trying to create a managed policy by AWS CLI:
POLICY='
{
"Version":"2012-10-17",
"Statement":
[{
"Effect":"Allow",
"Action":
[
"cloudformation:*"
],
"Resource":"*"...
- 4,976
3
votes
1
answer
2k
views
Can't invoke lambda function by a custom cloudformation resource
I am creating a cloudformation template, that creates a DynamoDB table. I want to put the values of the parameters of the template inside the DynamoDB table. To do so, I created a lambda function that ...
- 4,976
3
votes
2
answers
3k
views
How to add gitlab user defined variables in json file while deploying aws?
I am deploying a aws stack using gitlab -- using the below code in .gitlab-ci.yml file.
script:
- |
aws cloudformation create-change-set \
--change-set-type UPDATE \
--...
- 41
3
votes
1
answer
823
views
How to know how many Mount targets to create by Cloudformation
I create by cloudformation an EFS in a VPC, this VPC contains few EC2 instances.
I need to create as well mount targets for each subnet.
This cloudformation template can be executed in different AWS ...
- 4,976
3
votes
0
answers
411
views
Importing files into pyplates
I'm busy experimenting with pyplates to create AWS CloudFormation JSON templates. I am rather new to python programming and I've run into an issue I'm not sure how to solve.
The CF templates can get ...
- 51
2
votes
2
answers
6k
views
CloudFormation template file -- how to use ref function in the middle of a string to reference a parameter
How do you dereference a parameter in the middle of a string?
I have a JSON Cloudformation template file that takes a parameter for a S3 bucket name ("BucketName") to use in an IAM policy that gives ...
- 53
2
votes
1
answer
2k
views
CloudFormation nested stack parameters
I'm trying to reuse old VPC and ELB templates in a Nested CloudFormation stack.
VPC template:
{
"AWSTemplateFormatVersion" : "2010-09-09",
"Description" : "AppVPC",
"Resources" : {
"...
- 172
2
votes
1
answer
9k
views
Cloudformation in create stack error: "ELB cannot be attached to multiple subnets in the same AZ"
I trying to build infrastracture with Cloudformation json template. When I added two Subnets and SubnetRouteTableAssociation in both availability zones that i need. But creating process failing to ...
- 926
2
votes
1
answer
3k
views
Adding a list to the parameters file for Cloudformation template
I have a cloudformation template in which I send a JSON parameters file over. It was not a real problem, as my parameters file used to look like this:
[
"InstanceType=t2.medium",
"AmiStack=...
- 419
2
votes
2
answers
4k
views
Allow every instance in the same Security Group to share any data between each other at Cloud Formation JSON?
I'm building a Cloud Formation JSON to define EC2 Instances and Security Groups.
I need to create a security Group that allows every instance that belongs in it to share any data between each other.
...
- 971
2
votes
2
answers
1k
views
CloudFormation AWS::EC2::Instance specify number of instances
Is there a way in the json template under AWS::EC2::Instance to specify the number of instances?
- 1,579
2
votes
3
answers
4k
views
Cloudformation template to create EMR cluster
I am trying to create EMR-5.30.1 clusters with applications such as Hadoop, livy, Spark, ZooKeeper, and Hive with the help of the CloudFormation template. But the issue is with this template is I am ...
- 161
2
votes
3
answers
4k
views
Unable to add Fine grain access for Elasticsearch service for Cloudformation
I am creating CloudFormation stack with Elasticsearch service, however it fails for AdvancedSecurityOptions, which works perfectly fine with aws es create-elasticsearch-domain
my JSON template snippet ...
- 1,885
2
votes
1
answer
2k
views
How to create an EventPattern that filters multiple sources (within an EventBridge rule)?
I'm currently using an EventRule with an EventPattern allowing more than one source - example CloudFormation fragment:
EventRule:
Type: AWS::Events::Rule
Properties:
EventBusName: MyEventBus
...
- 38.3k
2
votes
3
answers
5k
views
AWS CloudFormation - using !Ref inside !Sub
I'm writing AWS CloudFormation template (using yaml) which creates AWS Service Catalog Product.
I'm getting the template for the product using parameter S3FilePath which has a value like the above ...
- 528
2
votes
1
answer
4k
views
The notification destination service region is not valid for the bucket location constraint when creating SQS Event on S3 Bucket via Cloudformation
I'm creating a cloudformation template which has to create a private bucket and then add event notification that send a message to a queue every time there's an object created in bucket. When i run ...
- 225
2
votes
1
answer
539
views
Need Multiple instances to be launched for different environments using one AWS CloudFormation Template
I'm have a requirement to build 3 different types of environment each having different numbers of instances to be launched using single CF template in JSON. For example: 1st ENV needs 2 instances, 2nd ...
- 21
2
votes
1
answer
1k
views
Getting JSON serializable error for datetime
I am trying to fetch the CloudFormation stack details using boto3 as below
import boto3
import json
def lambda_handler(event, context):
global cnfOutput
cnfOutput = cfn1.describe_stacks(...
- 125
2
votes
1
answer
770
views
CFT Template error: unresolved condition dependency UseDBSnapshot in Fn::If
Trying to create a CFT for RDS which can handle both the scenarios
creating a new RDS Aurora MySQL cluster and
create a RDS cluster with a existing DB Cluster Snapshot
Here is what I tried,
I have ...
- 35