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+# Check a Pod can connect to an external DB
+
+## TL;DR
+
+```shell
+# access a test container
+kubectl run --generator=run-pod/v1 --limits 'cpu=200m,memory=512Mi' --requests 'cpu=200m,memory=512Mi' --image alpine ${USER}-mysql-test -it -- sh
+
+# install programs
+apk --no-cache add mysql-client netcat-openbsd
+
+# test plain connectivity
+nc -vz -w3 10.0.2.15 3306
+
+# test the client can connect
+mysql --host 10.0.2.15 --port 3306 --user root
+```