docker数据库如何初始化（Docker启动PostgreSQL时创建多个数据库的解决方案）

#!/bin/bash

set -e
set -u

function create_user_and_database() {
	local database=$1
	echo "  Creating user and database '$database'"
	psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" <<-EOSQL
	    CREATE USER $database;
	    CREATE DATABASE $database;
	    GRANT ALL PRIVILEGES ON DATABASE $database TO $database;
EOSQL
}

if [ -n "$POSTGRES_MULTIPLE_DATABASES" ]; then
	echo "Multiple database creation requested: $POSTGRES_MULTIPLE_DATABASES"
	for db in $(echo $POSTGRES_MULTIPLE_DATABASES | tr ',' ' '); do
		create_user_and_database $db
	done
	echo "Multiple databases created"
fi

CREATE USER pkslowuser;

CREATE DATABASE logdata;
GRANT ALL PRIVILEGES ON DATABASE logdata TO pkslowuser;

CREATE DATABASE orderdata;
GRANT ALL PRIVILEGES ON DATABASE orderdata TO pkslowuser;

CREATE DATABASE userdata;
GRANT ALL PRIVILEGES ON DATABASE userdata TO pkslowuser;

FROM postgres:10
COPY src/main/resources/create-multiple-postgresql-databases.sh /docker-entrypoint-initdb.d/
COPY src/main/resources/create-multiple-postgresql-databases.sql /docker-entrypoint-initdb.d/

docker run -itd \
    --name pkslow-postgres \
    -e POSTGRES_MULTIPLE_DATABASES=db1,db2 \
    -e POSTGRES_USER=pkslow \
    -e POSTGRES_PASSWORD=pkslow \
    -p 5432:5432 \
    pkslow/postgresql-multiple-databases:1.0-SNAPSHOT

db1,db2,
logdata,orderdata,userdata