Docker PostgreSQL with persistent volume

Docker PostgreSQL with persistent volume

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version: '3.1'
services:
db:
image: postgres
restart: always
ports:
- 25432:5432
environment:
POSTGRES_PASSWORD: 1234
volumes:
- ./postgres-data:/var/lib/postgresql/data
adminer:
image: adminer
restart: always
ports:
- 8080:8080
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