tyler.durden
/
compose
mirror of https://github.com/docker/compose.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #1552 from aanand/add-upgrade-instructions 

Add upgrading instructions to install docs
This commit is contained in:
Aanand Prasad 2015-06-16 16:26:40 -07:00
parent bc14c473c9 acd8dce595
commit bc7161b475
1 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
docs/install.md
View File

@ -43,6 +43,18 @@ Compose can also be installed as a Python package:
No further steps are required; Compose should now be successfully installed.
You can test the installation by running `docker-compose --version`.
### Upgrading
If you're coming from Compose 1.2 or earlier, you'll need to remove or migrate your existing containers after upgrading Compose. This is because, as of version 1.3, Compose uses Docker labels to keep track of containers, and so they need to be recreated with labels added.
If Compose detects containers that were created without labels, it will refuse to run so that you don't end up with two sets of them. If you want to keep using your existing containers (for example, because they have data volumes you want to preserve) you can migrate them with the following command:
docker-compose migrate-to-labels
Alternatively, if you're not worried about keeping them, you can remove them - Compose will just create new ones.
docker rm -f myapp_web_1 myapp_db_1 ...
## Compose documentation
- [User guide](compose-overview.md)