For the already existing environments, you can change the Ruby version by redeploying container(s):
1. There are two options to access container update dialog:
-
via the topology wizard (use the Change Environment Topology button next to the appropriate environment) by clicking on the stack/tag version in the central dialog part
-
with the appropriate Rededeploy container(s) button next to the required node/layer
2. In the opened window, adjust the following settings:
- Tag – allows choosing the needed Ruby version
- Keep volumes data – saves data in volumes
- Simultaneous or Sequential deployment with delay (for scaled servers only) – defines whether all containers within a layer should be redeployed at once or one-by-one, to avoid downtime

3. Click Redeploy and confirm via the appeared pop-up frame.

In a minute, the Ruby version of your node(s) will be updated.