github.com/Prakhar-Agarwal-byte/moby@v0.0.0-20231027092010-a14e3e8ab87e/profiles/apparmor/template.go (about)

     1  //go:build linux
     2  
     3  package apparmor // import "github.com/Prakhar-Agarwal-byte/moby/profiles/apparmor"
     4  
     5  // NOTE: This profile is replicated in containerd and libpod. If you make a
     6  //       change to this profile, please make follow-up PRs to those projects so
     7  //       that these rules can be synchronised (because any issue with this
     8  //       profile will likely affect libpod and containerd).
     9  // TODO: Move this to a common project so we can maintain it in one spot.
    10  
    11  // baseTemplate defines the default apparmor profile for containers.
    12  const baseTemplate = `
    13  {{range $value := .Imports}}
    14  {{$value}}
    15  {{end}}
    16  
    17  profile {{.Name}} flags=(attach_disconnected,mediate_deleted) {
    18  {{range $value := .InnerImports}}
    19    {{$value}}
    20  {{end}}
    21  
    22    network,
    23    capability,
    24    file,
    25    umount,
    26    # Host (privileged) processes may send signals to container processes.
    27    signal (receive) peer=unconfined,
    28    # dockerd may send signals to container processes (for "docker kill").
    29    signal (receive) peer={{.DaemonProfile}},
    30    # Container processes may send signals amongst themselves.
    31    signal (send,receive) peer={{.Name}},
    32  
    33    deny @{PROC}/* w,   # deny write for all files directly in /proc (not in a subdir)
    34    # deny write to files not in /proc/<number>/** or /proc/sys/**
    35    deny @{PROC}/{[^1-9],[^1-9][^0-9],[^1-9s][^0-9y][^0-9s],[^1-9][^0-9][^0-9][^0-9/]*}/** w,
    36    deny @{PROC}/sys/[^k]** w,  # deny /proc/sys except /proc/sys/k* (effectively /proc/sys/kernel)
    37    deny @{PROC}/sys/kernel/{?,??,[^s][^h][^m]**} w,  # deny everything except shm* in /proc/sys/kernel/
    38    deny @{PROC}/sysrq-trigger rwklx,
    39    deny @{PROC}/kcore rwklx,
    40  
    41    deny mount,
    42  
    43    deny /sys/[^f]*/** wklx,
    44    deny /sys/f[^s]*/** wklx,
    45    deny /sys/fs/[^c]*/** wklx,
    46    deny /sys/fs/c[^g]*/** wklx,
    47    deny /sys/fs/cg[^r]*/** wklx,
    48    deny /sys/firmware/** rwklx,
    49    deny /sys/devices/virtual/powercap/** rwklx,
    50    deny /sys/kernel/security/** rwklx,
    51  
    52    # suppress ptrace denials when using 'docker ps' or using 'ps' inside a container
    53    ptrace (trace,read,tracedby,readby) peer={{.Name}},
    54  }
    55  `