In #15870 we got good feedback that it'd be more useful to have the
various filename-accepting arguments on this provisioner instead accept
strings that represent the contents of such files, so that they can be
generated from elsewhere in the Terraform config.
This change does not achieve that, but it does make room for doing this
later by renaming "minion_config" to "minion_config_file" so that we
can later add a "minion_config" option alongside that takes the file
content, and deprecate "minion_config_file".
Ideally we'd just implement the requested change immediately, but
unfortunately the release schedule doesn't have time for this so this is
a pragmatic change to allow us to make the full requested change at a
later date without backward incompatibilities.
This change is safe because the salt-masterless provisioner has not yet
been included in a release at the time of this commit.
The code here was previously assuming that d.State() was equivalent to
the schema.ProvRawStateKey due to them both being of type InstanceState,
but that is in fact not true since a state object contains some transient
information that is _not_ part of the persisted state, including the
connection information we need here.
Calling ResourceData.State() constructs a _new_ state based on its stored
values, so the constructed object is lacking this transient information.
We need to use the specific state object provided by the caller in order
to get access to the transient connection configuration.
Unfortunately there is no automated test coverage for this because we have
no good story for testing provisioners that use "communicator". While such
tests could potentially be written, we'd like to get this in somewhat
quickly to unblock a release, rather than delaying to design and implement
some sort of mocking system for this.
Martin Atkins