How to pass parameter as a file in AWS CloudFormation deploy?

Question

I was trying to update the existing CloudFormation stack with the below command.

aws cloudformation deploy

there is no option to pass parameter file with deploy option. we tried to pass parameter file with --parameter-overrides but it's giving the below error.

value passed to --parameter-overrides must be of format Key=Value

the command we try to execute is

aws cloudformation deploy --template-file sg.yml --stack-name Common-SG --parameter-overrides ip.json --no-execute-changeset

is there any way to pass the parameters in file with aws cloudformation deploy

Answer 1

Passing a parameters stored as JSON in a local file looks like:

aws cloudformation deploy \
    --stack-name demo \
    --template-file test.yml --parameter-overrides file://test.json  \

and the test.json like this.

{
    "Parameters": {
      "BucketName": "myawesometestdemo"
    }
}

test.yml

---
AWSTemplateFormatVersion: '2010-09-09'
Description: Simple S3 Bucket test
Parameters:
  BucketName:
    Type: String
    Description: The name of the S3 Bucket to create

Metadata:

  AWS::CloudFormation::Interface:
    ParameterLabels:
      BucketName:
        default: S3 Bucket Name

Resources:

  S3Bucket:
    Type: AWS::S3::Bucket
    Properties:
      BucketName: !Ref BucketName

aws cli version :

aws --version
aws-cli/2.2.35 Python/3. XXX

Answer 2

workaround for this issue is pass parameters with jq command.

yum install jq

Below is the syntax for the same.

aws cloudformation deploy --template-file sg.yml --stack-name Common-SG --parameter-overrides $(jq -r '.[] | [.ParameterKey, .ParameterValue] | "\(.[0])=\(.[1])"' ip.json) --no-execute-changeset

Answer 3

this might be too late already, but for the sake of future similar issue I found this answer on (https://github.com/aws/serverless-application-model/issues/111)

The command should look like:

aws cloudformation deploy --template-file sg.yml --stack-name Common-SG --parameter-overrides $(cat params.properties) --no-execute-changeset

Now this is not going to be a json file, since "parameter-overrieds" expects a Key=Value pairs!