1. build image `docker build -t postgre12-plv8 .` 2. start docker image `docker run --name some-postgre12 -p 5432:5432 -e POSTGRES_PASSWORD=mysecretpassword -d postgre12-plv8` 3. enable plv8 `CREATE EXTENSION plv8;` 4. references: <1>. https://gist.github.com/asleepysamurai/5690830