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#!/usr/bin/env sh

# This scripts installs lattice to AWS in "one click".

# I used this script with terraform-0.3.7
# I expect following environment variables to be definded
#   - AWS_ACCESS_KEY
#   - AWS_SECRET_KEY
#   - AWS_KEY_NAME
#   - AWS_KEY_PATH

LATTICE_VERSION=${LATTICE_VERSION:-0.2.1}

# wget https://github.com/cloudfoundry-incubator/lattice/archive/v$LATTICE_VERSION.tar.gz
tar -xvf v$LATTICE_VERSION.tar.gz
mv lattice-$LATTICE_VERSION lattice
cd lattice/terraform/aws/example


if [[ "$OSTYPE" == "linux-gnu" ]]; then
  # Ubuntu 
  sed -i 's/aws_access_key = "<CHANGE-ME>"/aws_access_key = "'$AWS_ACCESS_KEY'"/g' lattice.aws.tf
  sed -i 's/aws_secret_key = "<CHANGE-ME>"/aws_secret_key = "'$AWS_SECRET_KEY'"/g' lattice.aws.tf
  sed -i 's/aws_key_name = "<CHANGE-ME>"/aws_key_name = "'$AWS_KEY_NAME'"/g' lattice.aws.tf
  sed -i 's|aws_ssh_private_key_file = "<CHANGE-ME>"|aws_ssh_private_key_file = "'$AWS_KEY_PATH'"|g' lattice.aws.tf  
  if [ ! -z "$AWS_REGION" ]; then
    sed -i 's/# aws_region = "<CHANGE-ME>"/aws_region = "'$AWS_REGION'"/g' lattice.aws.tf
  fi  
elif [[ "$OSTYPE" == "darwin"* ]]; then
  # Mac OS X
  sed -i '' 's/aws_access_key = "<CHANGE-ME>"/aws_access_key = "'$AWS_ACCESS_KEY'"/g' lattice.aws.tf
  sed -i '' 's/aws_secret_key = "<CHANGE-ME>"/aws_secret_key = "'$AWS_SECRET_KEY'"/g' lattice.aws.tf
  sed -i '' 's/aws_key_name = "<CHANGE-ME>"/aws_key_name = "'$AWS_KEY_NAME'"/g' lattice.aws.tf
  sed -i '' 's|aws_ssh_private_key_file = "<CHANGE-ME>"|aws_ssh_private_key_file = "'${AWS_KEY_PATH}'"|g' lattice.aws.tf  
  if [ ! -z "$AWS_REGION" ]; then
    sed -i '' 's/# aws_region = "<CHANGE-ME>"/aws_region = "'$AWS_REGION'"/g' lattice.aws.tf
  fi  
fi

terraform get -update
terraform apply

# Install CLI 
echo "Now you can use lattice."
echo "Install Lattice CLI with following commands:"
echo "    sudo wget https://lattice.s3.amazonaws.com/releases/latest/darwin-amd64/ltc -O /usr/bin/ltc"
echo "    sudo chmod +x /usr/bin/ltc"

# terraform-0.3.7

export AWS_ACCESS_KEY=...
export AWS_SECRET_KEY=...
export AWS_KEY_NAME=lattice
export AWS_KEY_PATH=$HOME/.ssh/us-west-1.pem
export AWS_REGION=us-west-1
export LATTICE_VERSION=0.2.1