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vendor buildkit 68bb095353c65bc3993fd534c26cf77fe05e61b1

Signed-off-by: Tibor Vass <tibor@docker.com>
This commit is contained in:
Tibor Vass 2021-01-26 17:50:55 +00:00
parent e908cc3901
commit 4afe620fac
7 changed files with 46 additions and 12 deletions

View file

@ -33,7 +33,7 @@ github.com/imdario/mergo 1afb36080aec31e0d1528973ebe6
golang.org/x/sync cd5d95a43a6e21273425c7ae415d3df9ea832eeb
# buildkit
github.com/moby/buildkit 8142d66b5ebde79846b869fba30d9d30633e74aa # v0.8.1
github.com/moby/buildkit 68bb095353c65bc3993fd534c26cf77fe05e61b1 # v0.8 branch
github.com/tonistiigi/fsutil 0834f99b7b85462efb69b4f571a4fa3ca7da5ac9
github.com/tonistiigi/units 6950e57a87eaf136bbe44ef2ec8e75b9e3569de2
github.com/grpc-ecosystem/grpc-opentracing 8e809c8a86450a29b90dcc9efbf062d0fe6d9746

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@ -87,6 +87,10 @@ type OCIConfig struct {
// Decoding this is delayed in order to remove the dependency from this
// config pkg to stargz snapshotter's config pkg.
StargzSnapshotterConfig toml.Primitive `toml:"stargzSnapshotter"`
// ApparmorProfile is the name of the apparmor profile that should be used to constrain build containers.
// The profile should already be loaded (by a higher level system) before creating a worker.
ApparmorProfile string `toml:"apparmor-profile"`
}
type ContainerdConfig struct {
@ -98,6 +102,10 @@ type ContainerdConfig struct {
GCConfig
NetworkConfig
Snapshotter string `toml:"snapshotter"`
// ApparmorProfile is the name of the apparmor profile that should be used to constrain build containers.
// The profile should already be loaded (by a higher level system) before creating a worker.
ApparmorProfile string `toml:"apparmor-profile"`
}
type GCPolicy struct {

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@ -16,6 +16,7 @@ import (
"github.com/moby/buildkit/snapshot"
"github.com/moby/buildkit/util/network"
specs "github.com/opencontainers/runtime-spec/specs-go"
"github.com/opencontainers/selinux/go-selinux"
"github.com/pkg/errors"
)
@ -35,7 +36,7 @@ const (
// GenerateSpec generates spec using containerd functionality.
// opts are ignored for s.Process, s.Hostname, and s.Mounts .
func GenerateSpec(ctx context.Context, meta executor.Meta, mounts []executor.Mount, id, resolvConf, hostsFile string, namespace network.Namespace, processMode ProcessMode, idmap *idtools.IdentityMapping, opts ...oci.SpecOpts) (*specs.Spec, func(), error) {
func GenerateSpec(ctx context.Context, meta executor.Meta, mounts []executor.Mount, id, resolvConf, hostsFile string, namespace network.Namespace, processMode ProcessMode, idmap *idtools.IdentityMapping, apparmorProfile string, opts ...oci.SpecOpts) (*specs.Spec, func(), error) {
c := &containers.Container{
ID: id,
}
@ -52,7 +53,7 @@ func GenerateSpec(ctx context.Context, meta executor.Meta, mounts []executor.Mou
return nil, nil, err
}
if securityOpts, err := generateSecurityOpts(meta.SecurityMode); err == nil {
if securityOpts, err := generateSecurityOpts(meta.SecurityMode, apparmorProfile); err == nil {
opts = append(opts, securityOpts...)
} else {
return nil, nil, err
@ -103,6 +104,9 @@ func GenerateSpec(ctx context.Context, meta executor.Meta, mounts []executor.Mou
for _, f := range releasers {
f()
}
if s.Process.SelinuxLabel != "" {
selinux.ReleaseLabel(s.Process.SelinuxLabel)
}
}
for _, m := range mounts {

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@ -13,6 +13,7 @@ import (
"github.com/moby/buildkit/util/entitlements/security"
"github.com/moby/buildkit/util/system"
specs "github.com/opencontainers/runtime-spec/specs-go"
"github.com/opencontainers/selinux/go-selinux/label"
)
func generateMountOpts(resolvConf, hostsFile string) ([]oci.SpecOpts, error) {
@ -26,15 +27,32 @@ func generateMountOpts(resolvConf, hostsFile string) ([]oci.SpecOpts, error) {
}
// generateSecurityOpts may affect mounts, so must be called after generateMountOpts
func generateSecurityOpts(mode pb.SecurityMode) ([]oci.SpecOpts, error) {
if mode == pb.SecurityMode_INSECURE {
func generateSecurityOpts(mode pb.SecurityMode, apparmorProfile string) (opts []oci.SpecOpts, _ error) {
switch mode {
case pb.SecurityMode_INSECURE:
return []oci.SpecOpts{
security.WithInsecureSpec(),
oci.WithWriteableCgroupfs,
oci.WithWriteableSysfs,
func(_ context.Context, _ oci.Client, _ *containers.Container, s *oci.Spec) error {
var err error
s.Process.SelinuxLabel, s.Linux.MountLabel, err = label.InitLabels([]string{"disable"})
return err
},
}, nil
} else if system.SeccompSupported() && mode == pb.SecurityMode_SANDBOX {
return []oci.SpecOpts{withDefaultProfile()}, nil
case pb.SecurityMode_SANDBOX:
if system.SeccompSupported() {
opts = append(opts, withDefaultProfile())
}
if apparmorProfile != "" {
opts = append(opts, oci.WithApparmorProfile(apparmorProfile))
}
opts = append(opts, func(_ context.Context, _ oci.Client, _ *containers.Container, s *oci.Spec) error {
var err error
s.Process.SelinuxLabel, s.Linux.MountLabel, err = label.InitLabels(nil)
return err
})
return opts, nil
}
return nil, nil
}

View file

@ -14,7 +14,7 @@ func generateMountOpts(resolvConf, hostsFile string) ([]oci.SpecOpts, error) {
}
// generateSecurityOpts may affect mounts, so must be called after generateMountOpts
func generateSecurityOpts(mode pb.SecurityMode) ([]oci.SpecOpts, error) {
func generateSecurityOpts(mode pb.SecurityMode, apparmorProfile string) ([]oci.SpecOpts, error) {
if mode == pb.SecurityMode_INSECURE {
return nil, errors.New("no support for running in insecure mode on Windows")
}

View file

@ -42,9 +42,10 @@ type Opt struct {
ProcessMode oci.ProcessMode
IdentityMapping *idtools.IdentityMapping
// runc run --no-pivot (unrecommended)
NoPivot bool
DNS *oci.DNSConfig
OOMScoreAdj *int
NoPivot bool
DNS *oci.DNSConfig
OOMScoreAdj *int
ApparmorProfile string
}
var defaultCommandCandidates = []string{"buildkit-runc", "runc"}
@ -62,6 +63,7 @@ type runcExecutor struct {
oomScoreAdj *int
running map[string]chan error
mu sync.Mutex
apparmorProfile string
}
func New(opt Opt, networkProviders map[pb.NetMode]network.Provider) (executor.Executor, error) {
@ -124,6 +126,7 @@ func New(opt Opt, networkProviders map[pb.NetMode]network.Provider) (executor.Ex
dns: opt.DNS,
oomScoreAdj: opt.OOMScoreAdj,
running: make(map[string]chan error),
apparmorProfile: opt.ApparmorProfile,
}
return w, nil
}
@ -253,7 +256,7 @@ func (w *runcExecutor) Run(ctx context.Context, id string, root executor.Mount,
}
opts = append(opts, containerdoci.WithCgroup(cgroupsPath))
}
spec, cleanup, err := oci.GenerateSpec(ctx, meta, mounts, id, resolvConf, hostsFile, namespace, w.processMode, w.idmap, opts...)
spec, cleanup, err := oci.GenerateSpec(ctx, meta, mounts, id, resolvConf, hostsFile, namespace, w.processMode, w.idmap, w.apparmorProfile, opts...)
if err != nil {
return err
}

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@ -46,6 +46,7 @@ require (
github.com/opencontainers/image-spec v1.0.1
github.com/opencontainers/runc v1.0.0-rc92
github.com/opencontainers/runtime-spec v1.0.3-0.20200728170252-4d89ac9fbff6
github.com/opencontainers/selinux v1.8.0
github.com/opentracing-contrib/go-stdlib v1.0.0
github.com/opentracing/opentracing-go v1.2.0
github.com/pkg/errors v0.9.1