When restoring resources that raise an already exists error, check their
equality before logging a message on the restore. If they're the same
except for some metadata, don't generate a message.
The restore process was modified so that if an object had an empty
namespace string, no namespace key is created on the object. This was to
avoid manipulating the copy of the current cluster's object by adding
the target namespace.
There are some cases right now that are known to not be equal via this
method:
- The `default` ServiceAccount in a namespace will not match, primarily
because of differing default tokens. These will be handled in their own
patch
- IP addresses for Services are recorded in the backup object, but are
either not present on the cluster object, or different. An issue for
this already exists at https://github.com/heptio/ark/issues/354
- Endpoints have differing values for `renewTime`. This may be
insubstantial, but isn't currently handled by the resetMetadataAndStatus
function.
- PersistentVolume objects do not match on spec fields, such as
claimRef and cloud provider persistent disk info
Signed-off-by: Nolan Brubaker <nolan@heptio.com>
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