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Parameters:
InstanceImageIdParameter:
Type: AWS::EC2::Image::Id
Default: 'ami-5055cd3f'
InstanceTypeParameter:
Type: String
Default: t2.micro
InstanceKeyNameParameter:
Type: String
InstanceNameParameter:
Type: String
Default: 'aws-tags-to-env-instance'
Resources:
MyInstanceRole:
Type: AWS::IAM::Role
Properties:
RoleName: aws-tags-as-env-default
AssumeRolePolicyDocument:
Version: '2012-10-17'
Statement:
- Effect: Allow
Principal:
Service: ec2.amazonaws.com
Action:
- sts:AssumeRole
DescribeTagsPolicy:
Type: AWS::IAM::Policy
Properties:
PolicyName: 'Ec2-DescribeTags'
PolicyDocument:
Statement:
- Effect: Allow
Action:
- "ec2:DescribeTags"
Resource: "*"
Roles:
- Ref: MyInstanceRole
MyInstanceProfile:
Type: AWS::IAM::InstanceProfile
DependsOn: MyInstanceRole
Properties:
Roles:
- Ref: MyInstanceRole
InstanceProfileName: aws-tags-as-env-instanceProfile
Instance:
Type: AWS::EC2::Instance
DependsOn: MyInstanceProfile
Properties:
ImageId:
Ref: InstanceImageIdParameter
InstanceType:
Ref: InstanceTypeParameter
KeyName:
Ref: InstanceKeyNameParameter
IamInstanceProfile:
Ref: MyInstanceProfile
UserData:
Fn::Base64:
Fn::Sub: |
#!/bin/bash
# install pip
OS=`cat /etc/os-release | grep '^NAME=' | tr -d \" | sed 's/\n//g' | sed 's/NAME=//g'`
if [ "$OS" == "Ubuntu" ]; then
apt-get -y update
apt-get -y install python-pip
elif [ "$OS" == "Amazon Linux AMI" ]; then
yum update -y
yum install -y python-pip
fi
# install aws-cli
pip install --upgrade pip &> /dev/null
pip install awscli --ignore-installed six &> /dev/null
# add boot script which loads environment variables
cat > /etc/profile.d/export_instance_tags.sh << 'EOF'
# fetch instance info
INSTANCE_ID=$(curl -s http://169.254.169.254/latest/meta-data/instance-id)
REGION=${AWS::Region}
# export instance tags
export_statement=$(aws ec2 describe-tags --region "$REGION" \
--filters "Name=resource-id,Values=$INSTANCE_ID" \
--query 'Tags[?!contains(Key, `:`)].[Key,Value]' \
--output text | \
sed -E 's/^([^\s\t]+)[\s\t]+([^\n]+)$/export \1="\2"/g')
eval $export_statement
# export instance info
export INSTANCE_ID
export REGION
EOF
Tags:
- Key: Name
Value: 'My Awesome Instance'
- Key: INSTANCE_ROLE_ARN
Value:
Fn::GetAtt:
- MyInstanceRole
- Arn
- Key: GREETING
Value: "Hello, world!"
- Key: TAG1
Value: "My awesome tag #1"
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