ae22854e2b
This allows running Linux containers on FreeBSD and modifies the mounts so that they represent the linux emulated filesystems, as per: https://wiki.freebsd.org/LinuxJails Co-authored-by: Gijs Peskens <gijs@peskens.net>, Samuel Karp <samuelkarp@users.noreply.github.com> Signed-off-by: Artem Khramov <akhramov@pm.me>
51 lines
1.4 KiB
Go
51 lines
1.4 KiB
Go
/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package oci
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import (
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specs "github.com/opencontainers/runtime-spec/specs-go"
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)
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// appendOSMounts modifies the mount spec to mount emulated Linux filesystems on FreeBSD,
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// as per: https://wiki.freebsd.org/LinuxJails
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func appendOSMounts(s *Spec, os string) error {
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// No-op for FreeBSD containers
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if os != "linux" {
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return nil
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}
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/* The nosuid noexec options are for consistency with Linux mounts: on FreeBSD it is
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by default impossible to execute anything from these filesystems.
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*/
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var mounts = []specs.Mount{
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{
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Destination: "/proc",
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Type: "linprocfs",
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Source: "linprocfs",
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Options: []string{"nosuid", "noexec"},
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},
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{
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Destination: "/sys",
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Type: "linsysfs",
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Source: "linsysfs",
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Options: []string{"nosuid", "noexec", "nodev"},
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},
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}
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s.Mounts = append(mounts, s.Mounts...)
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return nil
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}
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