for-mac Enable `CONFIG_SECURITY` support on `6.6.X-linuxkit`+

Description

When trying to run eBPF-based security tools, like Tetragon (also see related Tetragon GH issue), on Docker Desktop-based KIND clusters, we're seeing issues like the following one, as the Docker Desktop (4.28.0 (139021), Server Version: 25.0.3) shipped Kernel 6.6.16-linuxkit doesn't have CONFIG_SECURITY=y set at kernel compilation time:

... aborting could not load BPF programs: failed prog /var/lib/tetragon/bpf_execve_bprm_commit_creds.o kern_version 394768 loadInstance: attaching 'tg_kp_bprm_committing_creds' failed: creating perf_kprobe PMU (arch-specific fallback for \"security_bprm_committing_creds\"): token __arm64_security_bprm_committing_creds: not found: no such file or directory

It's not set on the Docker Desktop included VM:

$ docker run -it --rm --privileged --pid=host ubuntu nsenter -t 1 -m -u -n -i sh -c 'cat /proc/config.gz | gunzip | grep CONFIG_SECURITY'
CONFIG_SECURITY_DMESG_RESTRICT=y
# CONFIG_SECURITY is not set
CONFIG_SECURITYFS=y

However, on the upstream linuxkit/linuxkit project it's already enabled for x86_64 and aarch64.

Can we please get CONFIG_SECURITY=y set on the Docker Desktop linuxkit VM as well?

Reproduce

Install Docker Desktop (v4.28.0) with kernel 6.6.16-linuxkit on an ARM64 Mac
Run docker run -it --rm --privileged --pid=host ubuntu nsenter -t 1 -m -u -n -i sh -c 'cat /proc/config.gz | gunzip | grep CONFIG_SECURITY'

Expected behavior

No response

docker version

Client:
 Cloud integration: v1.0.35+desktop.11
 Version:           25.0.3
 API version:       1.44
 Go version:        go1.21.6
 Git commit:        4debf41
 Built:             Tue Feb  6 21:13:26 2024
 OS/Arch:           darwin/arm64
 Context:           desktop-linux

Server: Docker Desktop 4.28.0 (139021)
 Engine:
  Version:          25.0.3
  API version:      1.44 (minimum version 1.24)
  Go version:       go1.21.6
  Git commit:       f417435
  Built:            Tue Feb  6 21:14:22 2024
  OS/Arch:          linux/arm64
  Experimental:     false
 containerd:
  Version:          1.6.28
  GitCommit:        ae07eda36dd25f8a1b98dfbf587313b99c0190bb
 runc:
  Version:          1.1.12
  GitCommit:        v1.1.12-0-g51d5e94
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0

docker info

Client:
 Version:    25.0.3
 Context:    desktop-linux
 Debug Mode: false
 Plugins:
  buildx: Docker Buildx (Docker Inc.)
    Version:  v0.12.1-desktop.4
    Path:     /Users/user/.docker/cli-plugins/docker-buildx
  compose: Docker Compose (Docker Inc.)
    Version:  v2.24.6-desktop.1
    Path:     /Users/user/.docker/cli-plugins/docker-compose
  debug: Get a shell into any image or container. (Docker Inc.)
    Version:  0.0.24
    Path:     /Users/user/.docker/cli-plugins/docker-debug
  dev: Docker Dev Environments (Docker Inc.)
    Version:  v0.1.0
    Path:     /Users/user/.docker/cli-plugins/docker-dev
  extension: Manages Docker extensions (Docker Inc.)
    Version:  v0.2.22
    Path:     /Users/user/.docker/cli-plugins/docker-extension
  feedback: Provide feedback, right in your terminal! (Docker Inc.)
    Version:  v1.0.4
    Path:     /Users/user/.docker/cli-plugins/docker-feedback
  init: Creates Docker-related starter files for your project (Docker Inc.)
    Version:  v1.0.1
    Path:     /Users/user/.docker/cli-plugins/docker-init
  sbom: View the packaged-based Software Bill Of Materials (SBOM) for an image (Anchore Inc.)
    Version:  0.6.0
    Path:     /Users/user/.docker/cli-plugins/docker-sbom
  scout: Docker Scout (Docker Inc.)
    Version:  v1.5.0
    Path:     /Users/user/.docker/cli-plugins/docker-scout
WARNING: Plugin "/Users/user/.docker/cli-plugins/docker-scan" is not valid: failed to fetch metadata: fork/exec /Users/user/.docker/cli-plugins/docker-scan: no such file or directory

Server:
 Containers: 30
  Running: 4
  Paused: 0
  Stopped: 26
 Images: 52
 Server Version: 25.0.3
 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: cgroupfs
 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: runc io.containerd.runc.v2
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: ae07eda36dd25f8a1b98dfbf587313b99c0190bb
 runc version: v1.1.12-0-g51d5e94
 init version: de40ad0
 Security Options:
  seccomp
   Profile: unconfined
  cgroupns
 Kernel Version: 6.6.16-linuxkit
 Operating System: Docker Desktop
 OSType: linux
 Architecture: aarch64
 CPUs: 10
 Total Memory: 11.67GiB
 Name: docker-desktop
 ID: 03bc7779-afb1-46ce-a5ba-5f0ef9409d97
 Docker Root Dir: /var/lib/docker
 Debug Mode: false
 HTTP Proxy: http.docker.internal:3128
 HTTPS Proxy: http.docker.internal:3128
 No Proxy: hubproxy.docker.internal
 Experimental: false
 Insecure Registries:
  hubproxy.docker.internal:5555
  127.0.0.0/8
 Live Restore Enabled: false

WARNING: daemon is not using the default seccomp profil

Diagnostics ID

D157BC07-AB5D-4FE5-8D0B-647AB720B1AC/20240415141419

Additional Info

No response

Apr 15 '24 14:04 PhilipSchmid

@PhilipSchmid sorry for breaking your workflow! I'll put that config back.

Also, FYI, Docker Desktop uses its own kernel config, now. It's not using the Linuxkit config anymore.

Apr 22 '24 11:04 dgageot

@PhilipSchmid It should be back in 4.30.0

Apr 23 '24 07:04 dgageot

Closing this issue because a fix has been released in Docker Desktop 4.30.0 . See the release notes for more details.

May 06 '24 16:05 chaizeg

I can confirm it - looks good 🎉. Thanks!

May 07 '24 07:05 PhilipSchmid