renstur@coopnet:~/blog$ ls -lt ./topics/portainer/
portainer/
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I edited a Portainer stack's compose file on disk and it stuck
I thought Portainer would discard compose edits made on disk, but on my install the editor just showed them. Stack files are plain files in Portainer's data volume, one folder per stack id. To apply an edit, recreate with docker compose -p set to the stack name, or you get a second project.