Docker 實戰系列(三):使用Volume 保存容器內的數據 | docker compose volume path
這是Docker實戰系列文的第三篇,如果還沒看過上一篇的可以先看看Docker實戰系列(二):在DockerHub上分享自己的image[1]之前說過每個container都是獨立的,那如果今天我想升級mysql的版本,於是我把正在跑的mysql:5.5關掉,然後重新跑一個mysql:5.7的container,那資料庫裡面的資料不就不見了嗎?沒錯,這時候就需要volume了,簡單來說Volume就是用來保存容器內的資料的,看看下面這張圖當你使用volume時,docker會在你的本機上隨機新增一個資料夾(Localstoragearea),大部分會在/var底下,然後讓這個資料夾跟container裡面的某個...
這是 Docker 實戰系列文的第三篇,如果還沒看過上一篇的可以先看看 Docker 實戰系列(二):在 DockerHub 上分享自己的 image[1]
之前說過每個 container 都是獨立的,那如果今天我想升級 mysql 的版本,於是我把正在跑的 mysql:5.5 關掉,然後重新跑一個 mysql:5.7 的 container,那資料庫裡面的資料不就不見了嗎?
沒錯,這時候就需要 volume 了,簡單來說 Volume 就是用來保存容器內的資料的,看看下面這張圖
當你使用 volume 時,docker 會在你的本機上隨機新增一個資料夾(Local storage area),大部分會在 /var 底下,然後讓這個資料夾跟 container 裡面的某個資料夾互通。
因為他們是互通的,所以當你 container 裡面那個...
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Compose file version 2 reference | docker compose volume path
跳到 volumes - volumes . Mount host folders or named volumes. ... You can mount a relative path on the host, which expands relative to the directory of ... Read More
Compose file version 3 reference | docker compose volume path
The Compose file is a YAML file defining services, networks and volumes. The default path for a Compose file is ./docker-compose.yml . Tip: You can use either a .yml or .yaml extension for this file. They both work. Read More
Define host volumes in the `volumes` section of the Compose ... | docker compose volume path
I am trying to define global volumes in my docker-compose.yml in ... mount -t none -o bind host-path var-lib-docker/volumes/myvolume/_data. Read More
Define named volume with host mount in the docker compose ... | docker compose volume path
Define named volume with host mount in the docker compose file. With the ... Point of interest is line 6, which reads, form the host relative path . Read More
Docker Compose 初步閱讀與學習記錄 | docker compose volume path
上次在看Dockerfile 時,有注意到一個工具,Docker Compose。 ... Engine create a volume - /var/lib/mysql # Specify an absolute path mapping ... Read More
Docker Compose 配置檔案Docker | docker compose volume path
先來看一份docker-compose.yml 檔案,不用管這是幹嘛的,只是有個格式方便後文解說: ... back-tier volumes: - /var/run/docker.sock:/var/run/docker.sock networks: front-tier: driver: bridge back-tier: ... dockerfile: path/of/Dockerfile. Read More
Docker 實戰系列(三):使用Volume 保存容器內的數據 | docker compose volume path
Volume 有個很厲害的功能那就是可以讓容器(container)跟本機(host)上面的資料互通,藉以達到持久化資料的功能,常常會用在資料庫的資料儲存 ... Read More
How can I mount an absolute host path as a named volume in docker ... | docker compose volume path
There were 2 reasons why my configuration wasn't working. First, Docker does not follow symlinks, and the mysql directory is a symlink: Read More
How to set a path on host for a named volume in docker | docker compose volume path
The location of named volumes is managed by docker; if you want to ... host directory, or use a volume plugin that allows you to specify a path. Read More
Use volumes | docker compose volume path
You can manage volumes using Docker CLI commands or the Docker API. ... The second field is the path where the file or directory are mounted in the container ... Read More
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