Andreas/docker-cheat-sheet
1
0
Fork 0
mirror of https://github.com/wsargent/docker-cheat-sheet.git synced 2025-09-22 05:40:50 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

add a note on data only containers.

Browse source
This commit is contained in:
Will Sargent 2015-01-28 10:13:53 -08:00
parent ad3f7e6076
commit 2b717ebcb9
1 changed files with 3 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

6
README.md
View file

@ -262,11 +262,11 @@ To delete links, use `docker rm --link `.
## Volumes
Docker volumes are [free-floating filesystems](http://docs.docker.com/userguide/dockervolumes/). They don't have to be connected to a particular container.
Docker volumes are [free-floating filesystems](http://docs.docker.com/userguide/dockervolumes/). They don't have to be connected to a particular container. You should use [use volumes mounted from data-only containers](https://medium.com/@ramangupta/why-docker-data-containers-are-good-589b3c6c749e) for portability.
Volumes are useful in situations where you can't use links (which are TCP/IP only). For instance, if you need to have two docker instances communicate by leaving stuff on the filesystem.
You can mount them in several docker containers at once, using `docker run -volume-from`
You can mount them in several docker containers at once, using `docker run -volume-from`.
Because volumes are isolated filesystems, they are often used to store state from computations between transient containers. That is, you can have a stateless and transient container run from a recipe, blow it away, and then have a second instance of the transient container pick up from where the last one left off.
@ -278,7 +278,7 @@ As of 1.3, you can [map MacOS host directories as docker volumes](http://docs.do
docker run -v /Users/wsargent/myapp/src:/src
```
You can also use remote NFS volume if you're [feeling brave](http://www.tech-d.net/2014/03/29/docker-quicktip-4-remote-volumes/).
You can also use remote NFS volumes if you're [feeling brave](http://www.tech-d.net/2014/03/29/docker-quicktip-4-remote-volumes/).
## Exposing ports