[Bug]: Docker cleanup coolify.managed label check never works due to Go template escaping error in CleanupDocker.php #8822
Description
Error Message and Logs
Description
The coolify.managed=true label check in CleanupDocker.php → buildImagePruneCommand() is broken. The generated docker inspect --format command contains {{{{ (4 curly braces) instead of {{ (2), causing a Go template parsing error. As a result, all images without a running container reference are deleted regardless of their labels.
Affected Code
File: app/Actions/Server/CleanupDocker.php, method buildImagePruneCommand()
$commands[] = "docker images --format '{{.Repository}}:{{.Tag}}' | ".
$grepCommands.' | '.
"xargs -r -I {} sh -c 'docker inspect --format \"{{{{index .Config.Labels \\\"coolify.managed\\\"}}}}\" \"{}\" 2>/dev/null | grep -q true || docker rmi \"{}\" 2>/dev/null' || true";In PHP double-quoted strings, { is not a special character and does not need escaping. {{{{ outputs literally as {{{{, not {{.
Generated Shell Command (actual)
docker inspect --format "{{{{index .Config.Labels \"coolify.managed\"}}}}" "image:tag"Result
template parsing error: template: :1: unexpected "{" in command
The error goes to /dev/null, stdout is empty, grep -q true fails, and docker rmi executes — deleting the image despite it having the label.
Steps to Reproduce
Build an image with the label
echo 'FROM alpine
LABEL coolify.managed="true"' | docker build -t test-label -f - .
4 braces (what Coolify generates) — FAILS
docker inspect --format "{{{{index .Config.Labels "coolify.managed"}}}}" "test-label"
Output: template parsing error: template: :1: unexpected "{" in command
2 braces (correct) — WORKS
docker inspect --format "{{index .Config.Labels "coolify.managed"}}" "test-label"
Output: true
docker rmi test-label
Example Repository URL
No response
Coolify Version
v4.0.0-beta.463
Are you using Coolify Cloud?
No (self-hosted)
Operating System and Version (self-hosted)
Debian 13 (Linux 6.12)
Additional Information
No response