aws-tools-env.sh

#!/bin/bash

script_path=${BASH_SOURCE:-$0}

# If this script isn't referenced by its full path, prepend the working directory
if [ "`echo $script_path|cut -b1`" == "/" ]; then
    dir=$(dirname "$script_path")
else
    dir=$(pwd)/$(dirname "$script_path")
fi

# define homes of all CLI tools
export AWS_TOOLS_HOME=$dir
export EC2_AMITOOL_HOME=$dir/ami-tools/ec2-ami-tools-1.5.7
export AWS_AUTO_SCALING_HOME=$dir/autoscaling/AutoScaling-1.0.61.6
export AWS_CLOUDFORMATION_HOME=$dir/cloudformation/AWSCloudFormation-1.0.11
export CS_HOME=$dir/cloudsearch/cloud-search-tools-1.0.0.1-2012.03.05
export AWS_CLOUDWATCH_HOME=$dir/cloudwatch/CloudWatch-1.0.13.4
export EC2_HOME=$dir/ec2/ec2-api-tools-1.7.5.1
export AWS_ELASTICACHE_HOME=$dir/elasticcache/AmazonElastiCacheCli-1.6.001
export AWS_ELB_HOME=$dir/elb/ElasticLoadBalancing-1.0.35.0
export AWS_EMR_HOME=$dir/emr/elastic-mapreduce-ruby-20130708
## NOTE: above works w/ ruby 1.8.7, but fails on osx 10.9.3 / ruby 2.0.0p451; this version works:
 # export AWS_EMR_HOME=$dir/emr/elastic-mapreduce-ruby-20131216
export AWS_IAM_HOME=$dir/iam/IAMCli-1.5.0
export AWS_RDS_HOME=$dir/rds/RDSCli-1.10.003
export AWS_SNS_HOME=$dir/sns/SimpleNotificationServiceCli-1.0.3.0

# add executables to the PATH
export PATH=$PATH:$EC2_AMITOOL_HOME/bin
export PATH=$PATH:$AWS_AUTO_SCALING_HOME/bin
export PATH=$PATH:$AWS_CLOUDFORMATION_HOME/bin
export PATH=$PATH:$CS_HOME/bin
export PATH=$PATH:$AWS_CLOUDWATCH_HOME/bin
export PATH=$PATH:$EC2_HOME/bin
export PATH=$PATH:$AWS_ELASTICACHE_HOME/bin
export PATH=$PATH:$AWS_ELB_HOME/bin
export PATH=$PATH:$AWS_EMR_HOME
export PATH=$PATH:$AWS_IAM_HOME/bin
export PATH=$PATH:$AWS_RDS_HOME/bin
export PATH=$PATH:$AWS_SNS_HOME/bin

if [ -z "$AWS_ACCESS_KEY_ID" ]; then
  echo "WARNING: AWS_ACCESS_KEY_ID must be set before running $script_path" >&2
fi

if [ -z "$AWS_SECRET_ACCESS_KEY" ]; then
  echo "WARNING: AWS_SECRET_ACCESS_KEY must be set before running $script_path" >&2
fi

if [ -z "$EC2_PRIVATE_KEY" ]; then
  echo "WARNING: EC2_PRIVATE_KEY must be set before running ec2-* commands" >&2
fi

if [ -z "$EC2_CERT" ]; then
  echo "WARNING: EC2_CERT must be set before running ec2-* commands" >&2
fi

if [ -z "$AWS_ACCESS_KEY_ID" ]; then
  echo "AWS_ACCESS_KEY_ID was not set. Credentials will only be available via instance-profile. Exiting..." >&2
  exit
fi

# developer credential set up...
if [ -z "$AWS_CREDENTIAL_FILE" ]; then
  CRED_FILE=~/.aws_credentials
else
  CRED_FILE=$AWS_CREDENTIAL_FILE
fi

if [ -f $CRED_FILE ]; then
  # make sure credentials are current
  TF=`mktemp -t cred.XXX`
  echo "AWSAccessKeyId=${AWS_ACCESS_KEY_ID}" > $TF
  echo "AWSSecretKey=${AWS_SECRET_ACCESS_KEY}" >> $TF

  # overwrite if different and warn
  cmp --quiet $CRED_FILE $TF || {
    echo "WARNING: AWS_CREDENTIAL_FILE did not contain the currently set AWS_ACCESS_KEY_ID and/or AWS_SECRET_ACCESS_KEY. Updating $CRED_FILE with currently set keys." >&2
    cp $TF $CRED_FILE
  }
  rm -f $TF
else
  echo "AWSAccessKeyId=${AWS_ACCESS_KEY_ID}" > $CRED_FILE
  echo "AWSSecretKey=${AWS_SECRET_ACCESS_KEY}" >> $CRED_FILE
fi

export AWS_CREDENTIAL_FILE=$CRED_FILE

# aws-java-sdk (and ec2-*) use different env names in the default credential provider
# https://github.com/aws/aws-sdk-java/issues/50
export AWS_ACCESS_KEY=${AWS_ACCESS_KEY_ID}
export AWS_SECRET_KEY=${AWS_SECRET_ACCESS_KEY}


# same thing but for the elastic-mapreduce client
if [ -z "$ELASTIC_MAPREDUCE_CREDENTIALS" ]; then
  EMR_CRED_FILE=~/.aws_credentials.json
else
  EMR_CRED_FILE=$ELASTIC_MAPREDUCE_CREDENTIALS
fi

if [ -f $EMR_CRED_FILE ]; then
  # make sure credentials are current
  TF=`mktemp -t cred.XXX`
  echo "{" > $TF
  echo "  \"access-id\": \"${AWS_ACCESS_KEY_ID}\"," >> $TF
  echo "  \"private-key\": \"${AWS_SECRET_ACCESS_KEY}\"" >> $TF
  echo "}" >> $TF

  # overwrite if different and warn
  cmp --quiet $EMR_CRED_FILE $TF || {
    echo "WARNING: ELASTIC_MAPREDUCE_CREDENTIALS did not contain the currently set AWS_ACCESS_KEY_ID and/or AWS_SECRET_ACCESS_KEY. Updating $EMR_CRED_FILE with currently set keys." >&2
    cp $TF $EMR_CRED_FILE
  }
  rm -f $TF
else
  echo "{" > $EMR_CRED_FILE
  echo "  \"access-id\": \"${AWS_ACCESS_KEY_ID}\"," >> $EMR_CRED_FILE
  echo "  \"private-key\": \"${AWS_SECRET_ACCESS_KEY}\"" >> $EMR_CRED_FILE
  echo "}" >> $EMR_CRED_FILE
fi

export ELASTIC_MAPREDUCE_CREDENTIALS=$EMR_CRED_FILE