[英]Docker Volume: Persist data for access across remote hosts
How do you access a volume across remote hosts so the data persists even if the instance goes down? 您如何跨远程主机访问卷,以便即使实例发生故障,数据也能持久保存?
This was setup on a Digital Ocean droplet with - 这是在Digital Ocean小滴上设置的-
eval $(docker-machine env <name_of_machine>)
docker-compose -f production.yml build
docker-compose -f production.yml up
My Postgres service is writing data to two different volumes - one for the database, and the other for backups. 我的Postgres服务正在将数据写入两个不同的卷-一个用于数据库,另一个用于备份。
version: '3'
volumes:
production_postgres_data: {}
production_postgres_data_backups: {}
production_caddy: {}
services:
django: &django
build:
context: .
dockerfile: ./compose/production/django/Dockerfile
image: mom_production_django
depends_on:
- postgres
- redis
env_file:
- ./.envs/.production/.django
- ./.envs/.production/.postgres
command: /start
postgres:
build:
context: .
dockerfile: ./compose/production/postgres/Dockerfile
image: mom_production_postgres
volumes:
- production_postgres_data:/var/lib/postgresql/data
- production_postgres_data_backups:/backups
env_file:
- ./.envs/.production/.postgres
These volumes are within that droplet, and my concern is that if anything happens to the droplet, the volumes will go with it. 这些体积在该小滴内,而我担心的是,如果小滴发生任何变化,这些体积将随之而来。
So how do you create a volume that can persist and be shared across remote hosts or in this case droplets? 那么,如何创建一个可以持久保存并在远程主机之间共享的卷?
You need to add persistence block storage. 您需要添加持久性块存储。 For reference please refer the link below.
有关参考,请参考下面的链接。 add persistence volume support
添加持久性卷支持
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