13
13
"github.com/juju/utils/set"
15
16
"github.com/juju/juju/agent"
16
17
"github.com/juju/juju/juju/paths"
17
18
"github.com/juju/juju/mongo"
18
19
"github.com/juju/juju/state/imagestorage"
22
22
// db is a surrogate for the proverbial DB layer abstraction that we