Executes the Switching of a Route53 A-Record ALIAS, from one ELB to another. This can be used after automated testing to automate Blue/Green cutover or DNS automated failover to another ELB.
Setup.py package installation
python setup.py install
Access Using IAM Credentials
- Use IAM Instance Based Roles with access to ELB (Read-only) and Route53 (Read/Write)
Or
- Create an IAM user with access to ELB (Read-only) & Route53(Read/Write)
- Create a Access Key for the user and add the credentials to either of the following:
- AWS_ACCESS_KEY_ID & AWS_SECRET_ACCESS_KEY environmental variables
export AWS_ACCESS_KEY_ID=<your access key>
export AWS_SECRET_ACCESS_KEY=<your secret key>
- Boto config file at ~/.boto for user based access or /etc/boto.cfg for all system users
[Credentials]
aws_access_key_id = <your access key>
aws_secret_access_key = <your secret key>
Automated Blue/Green Route53 Cutover CLI
usage: bgswitch [-h] [-v] [-e CURRENTELBNAME] [-u UPDATEELBNAME] -z DNSZONE -n
RECORDNAME [-t RECORDTYPE] [-r REGION] [-l TTL]
[--create-only]
Arguments:
-h, --help show this help message and exit
-v, --version show program's version number and exit
-e CURRENTELBNAME, --elbname CURRENTELBNAME
elb name (default: None)
-u UPDATEELBNAME, --elbupdate UPDATEELBNAME
elb name to add to record alias (default: None)
-z DNSZONE, --zone DNSZONE
Route53 hosted domain zone (default: None)
-n RECORDNAME, --recordname RECORDNAME
record name to update (default: None)
-t RECORDTYPE, --type RECORDTYPE
record typ (default: A)
-r REGION, --region REGION
AWS region (default: us-east-1)
-l TTL, --ttl TTL time to live number (default: 30)
--create-only Create a new Record entry in the zone (default: False)
Switch the A record alias of Arecord.domain.com from the "foo-elb" ELB to the updated endpoint address of the "bar-elb" ELB.
bgswitch -r us-west-1 -z domain.com -n Arecord.domain.com -e foo-elb -u bar-elb
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