Add dotenv output format for `aws ssm get-parameters-by-path` about aws-cli HOT 2 CLOSED

Thanks for the feature request regarding the get-parameters-by-path command.

Here is related documentation on AWS CLI command line options. The request to add a --output dotenv would likely not be considered because --output is a global parameter used for general formatting of outputs (json, table, text) and I don't think this use case is common or general enough to warrant a new output format.

The SSM service team owns the underlying GetParametersByPath API that is used here, so we could forward a feature request to them to provide the ability to return parameters in dotenv format.

I'll also share a utility script that I think accomplishes what you're trying to do:

#!/bin/bash

# Set the parameter path prefix
PARAMETER_PATH="/"

# Fetch parameters from the Parameter Store
PARAMETERS=$(aws ssm get-parameters-by-path --path "$PARAMETER_PATH" --recursive --with-decryption --query 'Parameters[*].[Name,Value]' --output text)

DOTENV_LINES=$(echo "$PARAMETERS" | awk -F $'\t' '{ printf "%s=%s\n", $1, $2 }')

# Write the dotenv lines to a file
echo "$DOTENV_LINES" > .env

echo "Environment variables exported to .env"

Also in a Boto3 script:

import boto3

# Set up AWS credentials/configurations
session = boto3.Session()
ssm_client = session.client('ssm')

# Define the parameter path prefix
parameter_path = '/'

# Fetch parameters from the Parameter Store
response = ssm_client.get_parameters_by_path(Path=parameter_path, Recursive=True, WithDecryption=True)

# Format parameters in dotenv format
dotenv_lines = []
for parameter in response['Parameters']:
    key = parameter['Name'].split('/')[-1]
    value = parameter['Value']
    dotenv_lines.append(f"{key}={value}")

# Write dotenv lines to a file
dotenv_file = '.env'
with open(dotenv_file, 'w') as f:
    f.write('\n'.join(dotenv_lines))

print(f"Environment variables exported to {dotenv_file}")

Hope that helps — please let us know if you'd also like us to reach out to the SSM team regarding this feature request.

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