AWSのRegionを東京に固定する

参考: http://d.hatena.ne.jp/rx7/20100612/p1

全世界にあるregionのうちTOKYO(ap-northeast-1)しか使ってないのに、いちいちコマンドで--regionを指定するのは面倒だ。

$ ec2-describe-regions
REGION  eu-west-1       ec2.eu-west-1.amazonaws.com
REGION  sa-east-1       ec2.sa-east-1.amazonaws.com
REGION  us-east-1       ec2.us-east-1.amazonaws.com
REGION  ap-northeast-1  ec2.ap-northeast-1.amazonaws.com
REGION  us-west-2       ec2.us-west-2.amazonaws.com
REGION  us-west-1       ec2.us-west-1.amazonaws.com
REGION  ap-southeast-1  ec2.ap-southeast-1.amazonaws.com

.bashrcとか.bash_profileあたりに以下の指定を追加する。

~/.bashrc

AWS_CREDENTIAL_FILE=/path/to/the/credential-file;  export AWS_CREDENTIAL_FILE
EC2_PRIVATE_KEY=pk-xxxxxxxxxx.pem;                 export EC2_PRIVATE_KEY
EC2_CERT=cert-xxxxxxxxxxxxxxx.pem;                 export EC2_CERT
+EC2_URL=https://ec2.ap-northeast-1.amazonaws.com; export EC2_URL
+EC2_REGION=ap-northeast-1;                        export EC2_REGION

EC2_URLとEC2_REGION。