Support Infrastructure operations running for longer than 60 min with temporary credentials #99

Changes introduced in v0.3.15 allow supplying temporary (session) AWS credentials for infrastructure operations. Many of these expire in 60 min.

This would lead to problems in the current implementation with infrastructure operations that run for longer than 60 min, since there is no mechanims for refreshing the credentials #17 (comment)

Possilbe solutions:

• Mount a directory that contains AWS config and/or credentials file into the Docker container and provide a local path to this file as environment variables e.g. AWS_CONFIG_FILE