--filter does not work with negatives anywhere other than prune

[inoa-jboliveira]

Description

Hi, the --filter option still is non conformant with the specs. It does not respect anything negative such --filter "label!:foo" on anything else other than prune command.

It does work on prune commands.

Reproduce

$ docker ps -a --filter "label!=foo"
Error response from daemon: invalid filter 'label!'

Expected behavior

No response

docker version

Client: Docker Engine - Community
 Version:           28.1.0
 API version:       1.49
 Go version:        go1.23.8
 Git commit:        4d8c241
 Built:             Thu Apr 17 09:54:54 2025
 OS/Arch:           linux/amd64
 Context:           default

Server: Docker Engine - Community
 Engine:
  Version:          28.1.0
  API version:      1.49 (minimum version 1.24)
  Go version:       go1.23.8
  Git commit:       3f46cad
  Built:            Thu Apr 17 09:54:54 2025
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          1.7.27
  GitCommit:        05044ec0a9a75232cad458027ca83437aae3f4da
 runc:
  Version:          1.2.5
  GitCommit:        v1.2.5-0-g59923ef
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0

docker info

Client: Docker Engine - Community
 Version:    28.1.0
 Context:    default
 Debug Mode: false
 Plugins:
  buildx: Docker Buildx (Docker Inc.)
    Version:  v0.22.0
    Path:     /usr/libexec/docker/cli-plugins/docker-buildx
  compose: Docker Compose (Docker Inc.)
    Version:  v2.35.0
    Path:     /usr/libexec/docker/cli-plugins/docker-compose

Server:
 Containers: 17
  Running: 16
  Paused: 0
  Stopped: 1
 Images: 11
 Server Version: 28.1.0
 Storage Driver: overlay2
  Backing Filesystem: extfs
  Supports d_type: true
  Using metacopy: false
  Native Overlay Diff: true
  userxattr: false
 Logging Driver: json-file
 Cgroup Driver: systemd
 Cgroup Version: 2
 Plugins:
  Volume: local
  Network: bridge host ipvlan macvlan null overlay
  Log: awslogs fluentd gcplogs gelf journald json-file local splunk syslog
 Swarm: inactive
 Runtimes: io.containerd.runc.v2 runc
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: 05044ec0a9a75232cad458027ca83437aae3f4da
 runc version: v1.2.5-0-g59923ef
 init version: de40ad0
 Security Options:
  apparmor
  seccomp
   Profile: builtin
  cgroupns
 Kernel Version: 6.8.0-1025-aws
 Operating System: Ubuntu 24.04.2 LTS
 OSType: linux
 Architecture: x86_64
 CPUs: 1
 Total Memory: 7.556GiB
 Name: AT-STG
 ID: 55eb8ac7-9165-4784-aa74-2309bd22b085
 Docker Root Dir: /var/lib/docker
 Debug Mode: false
 Experimental: false
 Insecure Registries:
  ::1/128
  127.0.0.0/8
 Live Restore Enabled: false

Additional Info

No response

[thaJeztah]

Curious what specs you're referring to. Yes, there's definitely improvements to be made, but I don't think != is documented for docker ps (https://docs.docker.com/reference/cli/docker/container/ls/#filter)

[inoa-jboliveira]

Hi @thaJeztah it is documented here:

https://docs.docker.com/engine/cli/filter/#multiple-negated-filters

It is a high level document that says it extends to all the commands (is there any reason it should not be the same in all contexts?)