MAAS

sudo snap install maas --channel=3.3/stable
sudo snap install maas

PostgreSQL

sudo apt install postgresql postgresql-contrib
sudo systemctl enable postgresql
sudo systemctl status postgresql
sudo systemctl start  postgresql
sudo systemctl daemon-reload

sudo -i -u postgres bash << EOF
createuser ${USER}
createdb   ${USER}
cat << DDL | psql
ALTER USER ${USER} WITH SUPERUSER;
DDL
EOF

sudo -i -u postgres psql << DDL
CREATE USER ${MAAS_DBUSER:-academia_maas} WITH ENCRYPTED PASSWORD '${MAAS_DBPASS:-sadaqah}'
DDL

sudo -i -u postgres bash << EOF
createdb -O ${MAAS_DBUSER:-academia_maas} ${MAAS_DBNAME:-academia_maas}
EOF

Knowledge

install: sudo snap install maas --channel=3.3	upgrade: sudo snap refresh maas --channel=3.3	sudo snap install maas-test-db sudo maas-test-db.psql
sudo maas init --help

References

MAAS » A fresh installation MAAS » Install » Ubuntu Linux Containers MAAS » Install PostgreSQL Minikube Podman Docker JQ Tool Bash	Using ${a:-b} for a Bash Variable Assignment Assign a Default Value to a Bash Variable Academia JavaEE Workspace in Raspbian Academia JavaEE Workspace in Ubuntu Academia JavaEE Workspace in MacOS Terraform Ansible TMux