Run PostgreSQL and pgAdmin4 on Docker with single command

mypostgres.sh

#!/bin/bash

# Create postgres directory with pgvolume and pga4volume as child directory.
mkdir -p postgres/{pgvolume,pga4volume}

# Navigate to postgres directory
cd postgres

# Create pg.env that holds environment variable for postgres docker container.
cat << EOF > pg.env
POSTGRES_USER=myusername
POSTGRES_PASSWORD=mypassword
EOF

# Create pga4.env that holds environment variable for pgadmin docker container.
cat << EOF > pga4.env
PGADMIN_DEFAULT_EMAIL=myemail@domain.com
PGADMIN_DEFAULT_PASSWORD=mypassword
EOF

# Taken from: https://stackoverflow.com/questions/48643466/docker-create-network-should-ignore-existing-network#answer-53052379
# Check if mypgnetwork exist or if itsn't create docker network named mypgnetwork
docker network inspect mypgnetwork &>/dev/null || \
    docker network create --driver bridge mypgnetwork

# Run postgres docker container
docker run --publish 5432:5432 \
       --volume $(pwd)/pgvolume:/var/lib/postgresql/data \
       --env-file ./pg.env \
       --name "mypostgres" \
       --hostname "mypostgres" \
       --network "mypgnetwork" \
       --detach \
       postgres:latest

# Run pgadmin docker container
docker run --publish 5050:80 \
       --volume $(pwd)/pga4volume:/var/lib/pgadmin \
       --env-file ./pga4.env \
       --name "mypgadmin4" \
       --hostname "mypgadmin4" \
       --network "mypgnetwork" \
       --detach \
       dpage/pgadmin4:latest
       
# Now, open up your browser on localhost:5050. Use myemail@domain.com and mypassword to login.

Nice script. For my environment I had to adjust permissions on the pga4volume directory. I probably didn't have to for the pgvolume because I used my login user id for POSTGRES_USER.