microservice-key-rotation

AWS Lambda function responsible for updating the Fluidity contract oracle addresses. Generates the keys, updates AWS parameters, then pushes a log to S3. For each token, the log contains previousKey.Sign(newAddress), where newAddress is a 20 byte address that's been left padded with zeros to be 32 bytes long. Additionally creates and signs transactions to transfer the Ether balance from the old to new oracles, then uploads them internally to Discord.

Environment variables

Name	Description
FLU_WORKER_ID	Worker ID used to identify the application in logging
FLU_DEBUG	Toggle debug messages produced by any application using the debug logger.
FLU_ETHEREUM_HTTP_URL	HTTP address to use to connect to Geth.
FLU_AWS_REGION	Region to connect to AWS in (usually ap-southeast-2)
FLU_AWS_CLUSTER	AWS Cluster to restart services in
FLU_AWS_SERVICE	String to match against AWS services to be restarted (matched with strings.Contains)
FLU_ORACLE_BUCKET_NAME	S3 Bucket to place the signed transaction in
FLU_ORACLE_UPDATE_LIST	Comma-separated list of AWS parameters containing oracles that need to be updated with their contract addresses, of the form contract1:param1,contract2:param2,...
FLU_DISCORD_WEBHOOK	Discord webhook to use when the Discord Notify function is used.

Building

make build

Testing

make test

Docker

make docker