Volume Maintenance fails with Docker Version 29
Summary
With Docker version 29 the clear-docker-cache command runs on an error as the Docker Engine stopped supporting API Version 1.41. The calling API version is set manually in the clear-docker-cache script for some reason.
Steps to reproduce
Update docker-ce to version 29. Run "/usr/share/gitlab-runner/clear-docker-cache prune-volumes"
Actual behavior
root@dev026:~# /usr/share/gitlab-runner/clear-docker-cache prune-volumes
Check and remove all unused containers (both dangling and unreferenced) including volumes.
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Error response from daemon: client version 1.41 is too old. Minimum supported API version is 1.44, please upgrade your client to a newer versionExpected behavior
Volumes are pruned
Environment description
Self-hosted runners
root@dev026:~# docker version --format '{{.Client.APIVersion}}'
1.52
root@dev026:~# docker version --format '{{.Client.Version}}'
29.0.0
root@dev026:~# dpkg -l | grep docker
ii docker-buildx-plugin 0.29.1-1~ubuntu.22.04~jammy amd64 Docker Buildx plugin extends build capabilities with BuildKit.
ii docker-ce 5:29.0.0-1~ubuntu.22.04~jammy amd64 Docker: the open-source application container engine
ii docker-ce-cli 5:29.0.0-1~ubuntu.22.04~jammy amd64 Docker CLI: the open-source application container engine
ii docker-ce-rootless-extras 5:29.0.0-1~ubuntu.22.04~jammy amd64 Rootless support for Docker.
ii docker-compose-plugin 2.40.3-1~ubuntu.22.04~jammy amd64 Docker Compose (V2) plugin for the Docker CLI.
root@dev026:~#Used GitLab Runner version
root@dev026:~# gitlab-runner --version
Version: 18.5.0
Git revision: bda84871
Git branch: 18-5-stable
GO version: go1.24.6 X:cacheprog
Built: 2025-10-13T19:20:30Z
OS/Arch: linux/amd64
root@dev026:~#Possible fixes
Check https://docs.docker.com/engine/release-notes/29/#breaking-changes - API Version 1.44 is now required
Unpin the api version 1.41 in script clear-docker-cache: