[英]Using “bind” volume mount inside of Docker Swarm with a docker-compose file
My environment is using a 3 node Docker Swarm (all being managers) and I have a docker-compose.yaml that was created to deploy out to the Swarm. 我的环境使用的是3节点Docker Swarm(都是管理员),我创建了一个docker-compose.yaml来部署到Swarm。
Inside my docker-compose.yaml I have two services being setup, one is a MySQL instance and the other is my custom Django App. 在我的docker-compose.yaml中,我正在设置两个服务,一个是MySQL实例,另一个是我的自定义Django应用。
What I am trying to do is two-fold: 我想做的事有两个方面:
My issue is that I am not able to get a local host file (something in this case /test) to show inside the container. 我的问题是我无法获取本地主机文件(在本例中为/ test)显示在容器内。 I have tried using both the long syntax and short syntax to create a “bind mount”.
我尝试使用长语法和短语法来创建“绑定安装”。
Here is my docker-compose.yaml file: 这是我的docker-compose.yaml文件:
version: '3.2'
services:
project_mysql:
environment:
MYSQL_USER: 'project'
MYSQL_PASSWORD: 'password1234'
ports:
- 3306:3306
image: 'mysql/mysql-server'
tty: true
stdin_open: true
deploy:
mode: replicated
replicas: 1
restart_policy:
condition: on-failure
placement:
constraints:
- node.hostname == node1
healthcheck:
test: ["CMD", "mysqladmin" ,"ping", "-h", "localhost"]
interval: "5s"
timeout: "1s"
project_web:
image: 'localhost:5123/project_web:0.1.5'
tty: true
stdin_open: true
volumes:
- type: bind
source: /test
target: /tmp
ports:
- 8000:8000
depends_on:
- project_mysql
healthcheck:
test: ["CMD-SHELL", "nc -z 127.0.0.1 8000 || exit 1"]
interval: "5s"
timeout: "1s"
networks:
projectnet:
driver: overlay
ipam:
config:
- subnet: 10.2.0.0/24
Thanks for any assistance! 感谢您的协助!
You need to add named volumes to the docker-compose.yaml file. 您需要将命名卷添加到docker-compose.yaml文件。
Before starting the instance, run 在启动实例之前,运行
docker volume create mysql-data
Then, in docker-compose.yaml
add: 然后在
docker-compose.yaml
添加:
services:
project_mysql:
volumes:
- mysql-data:/var/lib/mysql
volumes:
mysql-data:
external: true
If you ever kill the service, the data will still persist. 如果您终止了该服务,则数据仍将保留。
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