Porter command fails with incomplete read of message header: context deadline exceeded

[marrobi]

Occasionally a porter command will fail with:

logging root    81      2023-10-16 12:51:24,402 WARNING [stderr] rpc error: code = DeadlineExceeded desc = invalid index specified: ([]mongo.IndexModel) (len=1 cap=1) {
 (mongo.IndexModel) {
  Keys: (primitive.D) (len=2 cap=2) {
   (primitive.E) {
    Key: (string) (len=9) "namespace",
    Value: (int64) 1
   },
   (primitive.E) {
    Key: (string) (len=4) "name",
    Value: (int64) 1
   }
  },
  Options: (*options.IndexOptions)(0xc0001e3800)({
   Background: (*bool)(<nil>),
   ExpireAfterSeconds: (*int32)(<nil>),
   Name: (*string)(0xc000061b20)((len=18) "namespace_1_name_1"),
   Sparse: (*bool)(<nil>),
   StorageEngine: (interface {}) <nil>,
   Unique: (*bool)(0xc00082ac58)(true),
   Version: (*int32)(<nil>),
   DefaultLanguage: (*string)(<nil>),
   LanguageOverride: (*string)(<nil>),
   TextVersion: (*int32)(<nil>),
   Weights: (interface {}) <nil>,
   SphereVersion: (*int32)(<nil>),
   Bits: (*int32)(<nil>),
   Max: (*float64)(<nil>),
   Min: (*float64)(<nil>),
   BucketSize: (*int32)(<nil>),
   PartialFilterExpression: (interface {}) <nil>,
   Collation: (*options.Collation)(<nil>),
   WildcardProjection: (interface {}) <nil>,
   Hidden: (*bool)(<nil>)
  })
 }
}
: connection(cosmos-mongo-xxxxx-westeurope.mongo.cosmos.azure.com:10255[-6]) incomplete read of message header: context deadline exceeded
rpc error: code = DeadlineExceeded desc = invalid index specified: ([]mongo.IndexModel) (len=1 cap=1) {

This has been seen retrieving outputs, and the status message fails as:

Service bus message is not formatted correctly: 1812c32e-b97e-4440-a4c1-dc868dfbadf5 Exception message: '1 validation error for ParsingModel[DeploymentStatusUpdateMessage] __root__ -> outputs value is not a valid list (type=type_error.list)'

{"operationId": "35405209-2031-48c4-9f99-17ab2e847f52", "stepId": "8fb74d96-8a80-4f60-8260-23eb37b82e1c", "id": "1812c32e-b97e-4440-a4c1-dc868dfbadf5", "status": "updated", "message": "1812c32e-b97e-4440-a4c1-dc868dfbadf5: upgrade action completed successfully.", "outputs": ""}

[marrobi]

As a first step, will update porter to v1.0.15 as it has mongodb driver updates and amend the error handling so that a valid, but empty outputs are returned.