如何使用卷从 docker 中的转储或 sql 文件中恢复数据库？

Question

I am trying to run my database in docker which already have some data into it, But when I run it in docker it gives empty.. So how to restore my database in docker PostgreSQL image.

Answer 1

First, Start your docker posgtres container. Then execute the following command:

docker exec -i <CONTAINER> -U <USER> -d <DB-NAME> < <PATH-TO-DUMP>

• <CONTAINER> : Container ID or container name
• <USER> : User of PostgreSQL DBMS. If you use the standard postgres image with no specific config the user is postgres
• <DB-NAME> : The name of the DB. This DB should already exist. You can create a db when running your postgres container by specifying an environment variable named POSTGRES_DB
• <PATH-TO-DUMP> : Specify here the path to your dump file

Example: docker exec -i mypostgres psql -U postgres -d mydb < backup.sql

Hope this helps.

Answer 2

I am getting this error, when I dockerize Pdi Jobs.

ERROR (version 8.3.0.0-371, build 8.3.0.0-371 from 2019-06-11 11.09.08 by buildguy): An error occurred, processing will be stopped: 2019/10/31 05:02:03 - Table input.0 - Error occurred while trying to connect to the database 2019/10/31 05:02:03 - Table input.0 - 2019/10/31 05:02:03 - Table input.0 - Error connecting to database: (using class org.postgresql.Driver) 2019/10/31 05:02:03 - Table input.0 - Connection to localhost:5432 refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections. 2019/10/31 05:02:03 - Table output.0 - ERROR (version 8.3.0.0-371, build 8.3.0.0-371 from 2019-06-11 11.09.08 by buildguy): An error occurred intialising this step:

My docker-compose File:

version: '3.1'

services: pdijobs: image: pdijobs restart: always build: context: . dockerfile: Dockerfile

volumes:
- ./data/jasper-data:/usr/local/tomcat/webapps
ports:
  - "8080:8080"
depends_on:
  - datawarehouse-db
environment:
  DB_TYPE: postgresql
  DB_HOST: datawarehouse-db
  DB_NAME: data-warehouse
  DB_USER: postgres
  DB_PASSWORD: admin

datawarehouse-db: image: postgres:10 restart: "no" environment: POSTGRES_DB: data-warehouse POSTGRES_USER: postgres POSTGRES_PASSWORD: admin

volumes: postgres-data: pgdata: