fix cloudpod testing workflow; add troubleshooting for pod injection

Author: steffyP

.github/workflows/test_cloudpods.yml

@@ -90,6 +90,10 @@ jobs:
             state=$(awslocal rds describe-db-instances | jq -r ".DBInstances[0].DBInstanceStatus")
           done
 
+      # checkout to run the smoke-test.sh
+      - name: Checkout
+        uses: actions/checkout@v3
+
       - name: Run Smoke Tests
         run: |
           ./test-helper/smoke-test.sh

README.md

@@ -219,4 +219,21 @@ Then run:
 
 ```sh
 localstack pod load file://$(pwd)/release-pod-mysql.zip
-```
+```
+
+### Troubleshooting Cloud Pod Injection
+
+If you are on MacOS using the Docker Desktop App, and you want to inject the mysql pod, you might need to change some settings.
+
+The error message in LocalStack is visible when you enable debugging (`DEBUG=1`):
+
+```
+Different lower_case_table_names settings for server ('2') and data dictionary ('0').
+Data Dictionary initialization failed.
+```
+
+To fix this, go to the settings of the Docker Desktop App -> General, and then select `osxfs (Legacy)` for file sharing:
+
+![Change the Docker Desktop Setting](images/screenshot_docker_desktop_setting.png)
+
+Apply the changes, and restart LocalStack before attempting to inject the pod again.