docker-compose.yml

# Use tech_user/secret as user/password credentials
version: '3'

services:

    db:
        image: postgres:9.3
        environment:
            POSTGRES_PASSWORD: example
        entrypoint: &postgres-script
           - sh
           - -c
           - |
             set -e
             echo '#!/bin/bash' > /docker-entrypoint-initdb.d/bonita.sh
             echo 'sed -i "s/^.*max_prepared_transactions\s*=\s*\(.*\)$$/max_prepared_transactions = 100/" "$$PGDATA"/postgresql.conf' >> /docker-entrypoint-initdb.d/bonita.sh
             chmod +x /docker-entrypoint-initdb.d/bonita.sh
             /docker-entrypoint.sh postgres

    bonita:
        image: bonita
        ports:
            - 8080:8080
        environment:
            - POSTGRES_ENV_POSTGRES_PASSWORD=example
            - DB_VENDOR=postgres
            - DB_HOST=db
            - TENANT_LOGIN=tech_user
            - TENANT_PASSWORD=secret
            - PLATFORM_LOGIN=pfadmin
            - PLATFORM_PASSWORD=pfsecret
        depends_on:
            - db
        entrypoint: &bonita-script
           - sh
           - -c
           - |
             set -e
             cat > /wait-for-postgres.sh <<- EOM
             #!/bin/bash
             # wait-for-postgres.sh
             set -e
             host="\$$1"
             shift
             cmd="\$$@"
             PGPASSWORD=\$$POSTGRES_ENV_POSTGRES_PASSWORD
             export PGPASSWORD
             until psql -h "\$$host" -U "postgres" -c '\l'; do
               >&2 echo "Postgres is unavailable - sleeping"
               sleep 1
             done
             >&2 echo "Postgres is up - executing command"
             exec \$$cmd
             EOM
             chmod +x /wait-for-postgres.sh
             /wait-for-postgres.sh $$DB_HOST /opt/files/startup.sh