Install the Grouper v2.5 container maturity level -1 quick start v2.6.5+

$ mkdir quickstart
$ cd quickstart
$ vi docker-compose.yml

type 'i' for insert, then paste the following

version: '3'
services:
  postgres:
    image: "postgres:14"
    restart: always
    ports:
      - '5432:5432'
    environment:
      - POSTGRES_USER=postgres
      - POSTGRES_PASSWORD=pass
  grouper:
    image: "i2incommon/grouper:2.6.4"
    restart: always
    ports:
      - '443:443'
    command:
      - quickstart
    environment:
      - GROUPERSYSTEM_QUICKSTART_PASS=pass
      - GROUPER_MORPHSTRING_ENCRYPT_KEY=abc123
      - GROUPER_DATABASE_PASSWORD=pass
      - GROUPER_DATABASE_USERNAME=postgres
      - GROUPER_DATABASE_URL=jdbc:postgresql://postgres:5432/postgres
      - GROUPER_AUTO_DDL_UPTOVERSION=v2.6.*
      - GROUPER_RUN_HSQLDB=false

<esc> :wq

$ docker-compose up