Trim whitespace for password #patch (flyteorg#56)

* Trim whitespace for password

When deploying Flyte on our EKS cluster, we encountered a problem
because we had a whitespace character, by trimming space, we should
avoid that problem. Also it doesn't trim space if it is percent-encoded.

Signed-off-by: stephen batifol <stephen.batifol@wolt.com>

* Add comment about percent-encoding

Signed-off-by: stephen batifol <stephen.batifol@wolt.com>

datacalog/pkg/runtime/application_config_provider.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"io/ioutil"
 	"os"
+	"strings"
 
 	dbconfig "github.com/flyteorg/datacatalog/pkg/repositories/config"
 	"github.com/flyteorg/datacatalog/pkg/runtime/configs"
@@ -38,7 +39,9 @@ func (p *ApplicationConfigurationProvider) GetDbConfig() dbconfig.DbConfig {
 			logger.Fatalf(context.Background(), "failed to read database password from path [%s] with err: %v",
 				dbConfigSection.PasswordPath, err)
 		}
-		password = string(passwordVal)
+		// Passwords can contain special characters as long as they are percent encoded
+		// https://www.postgresql.org/docs/current/libpq-connect.html
+		password = strings.TrimSpace(string(passwordVal))
 	}
 
 	return dbconfig.DbConfig{