* add common config and encryption passwd
Adds a provider-independent configuration handler, and the
the encryption password config property. The password is used
to encrypt and decrypt the kopia repository properties file.
* fix corso_password in ci.yml
* actually use the corso password in testing
* replace passwd in ci.yml with a secret
* ci.yml secret typo fix
A small collection of changes and code cleanup to successfully run
'corso repo init s3' manually. Adds a default s3 url (might want
this configurable for local testing) and aws session token support.
* adds kopia pkg to handle integration (#25)
internal/kopia will be used to abstract all kopia integration in a
central location.
* defer blob.Storage closure in kopia
blob.Storage objects must get closed at the end of their usage.
This currently isn't getting called.
