create_users_and_accesskey_template.sh

#!/bin/bash

# Simple script just to generate the initial template, which
# 1. creates IAM Users
# 2. assigns IAM User to the same existing IAM Group(s)
# 3. creates IAM Access Key and Secret for each IAM User

OUTPUT_FILE=tmp_users.template

declare -a USERS=(
  "Firstname Lastname"
)

# Add Header
cat > ${OUTPUT_FILE} << EOF
AWSTemplateFormatVersion: '2010-09-09'
Description: >-
  Create IAM Users and assign users to the corresponding IAM Groups.

Resources:
EOF

# Add Resources
for user in "${USERS[@]}"
do
  echo "Adding $user"
  name_no_space=${user//[ ]/}
  user_name=$(echo "print('${user//[ ]/.}'.lower())" | python)

cat >> ${OUTPUT_FILE} << EOF
  ${name_no_space}IamUser:
    Type: AWS::IAM::User
    Properties:
      UserName: ${user_name}
      Groups:
        - Developers

  ${name_no_space}IamAccessKey:
    DependsOn: ${name_no_space}IamUser
    Type: AWS::IAM::AccessKey
    Properties:
      UserName: ${user_name}

EOF
done

# Add Outputs
echo "Outputs:" >> ${OUTPUT_FILE}

for user in "${USERS[@]}"
do
  name_no_space=${user//[ ]/}
  user_name=$(echo "print('${user//[ ]/.}'.lower())" | python)

cat >> ${OUTPUT_FILE} << EOF
  ${name_no_space}IamAccessKeyId:
    Value: !Ref ${name_no_space}IamAccessKey
  ${name_no_space}IamSecretAccessKey:
    Value: !GetAtt ${name_no_space}IamAccessKey.SecretAccessKey

EOF
done