Note, the local install still relies on keys and connecting to IAM on the AWS mothership, so it is not really an isolated setup.

https://medium.com/@vikramaroskar/setting-up-local-dynamodb-as-a-service-1908919d4347

Install to /usr/local/bin/dynamodb/

root@test-pythonwebserver:~# cat /etc/systemd/system/dynamodb.service
[Unit]
Description=Dynamo DB Local Service
[Service]
User=root
# The configuration file application.properties should be here:
#change this to your workspace
WorkingDirectory=/usr/lib/dynamodb
#path to executable.
#executable is a bash script which calls jar file
ExecStart=/usr/local/bin/dynamodb/start.sh
SuccessExitStatus=143
TimeoutStopSec=10
Restart=on-failure
RestartSec=5
[Install]
WantedBy=multi-user.target


root@test-pythonwebserver:~# systemctl daemon-reload


root@test-pythonwebserver:~# ls -l /usr/lib/dynamodb
total 16
-rw-r--r-- 1 root root 16384 May 13 15:51 shared-local-instance.db
root@test-pythonwebserver:~#


root@test-pythonwebserver:~# cat /usr/local/bin/dynamodb/start.sh
#!/bin/sh
sudo java -Djava.library.path=/usr/local/bin/dynamodb/DynamoDBLocal_lib -jar /usr/local/bin/dynamodb/DynamoDBLocal.jar -sharedDb
root@test-pythonwebserver:~#


root@test-pythonwebserver:~# systemctl enable dynamodb

root@test-pythonwebserver:~# systemctl status dynamodb