Simple script to start & stop pgadmin4 container

pgadmin4.sh

#!/bin/bash
## Author: Imam Omar Mochtar (iomarmochtar@gmail.com)
## Func: Simple script to start and stop pgadmin4 container

USERNAME=admin@mail.com
PASSWORD=kacangitem
PORT=8787
IMAGE="dpage/pgadmin4"
CONTAINER="omr_pgadmin4"

isAlreadyExist(){
    docker ps -a | grep $CONTAINER > /dev/null
    return $?
}

init(){
    docker run --name $CONTAINER \
        -p 127.0.0.1:$PORT:80 \
        -e "PGADMIN_DEFAULT_EMAIL=$USERNAME" \
        -e "PGADMIN_DEFAULT_PASSWORD=$PASSWORD" \
        -d $IMAGE
}

start(){
    if isAlreadyExist; then
        docker start $CONTAINER
    else
        init
    fi
}

stop(){
    docker stop $CONTAINER
}

status(){
    docker ps | grep $CONTAINER > /dev/null
    if [ $? == 0 ]; then
        echo "Running"
    else
        echo "Stopped"
    fi
}


case "$1" in
    start)
        start
        ;;
    stop)
        stop
        ;;
    status)
        status
        ;;
    *)
        echo "Uknown option $1"
        ;;
esac