Merge pull request #350 from juju/hmlanigan-patch-1

Update README.md

README.md

@@ -111,3 +111,24 @@ go mod tidy
 ```
 
 Then commit the changes to `go.mod` and `go.sum`.
+
+### Debugging
+
+To debug, setup environment variables:
+
+```shell
+export TF_LOG_PROVIDER=TRACE ; export TF_LOG_PATH=./terraform.log
+```
+
+Run your terraform commands.
+
+To find logs specific to the juju provider code:
+```shell
+grep "@module=juju.resource" ./terraform.log
+grep "@module=juju.datasource" ./terraform.log
+```
+
+To find logs specific to the juju client talking to juju itself:
+```shell
+grep "@module=juju.client" ./terraform.log
+```