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container_create: support seccomp docker/default annotation 

Fixes the following Origin/Kube test:

```
• Failure [10.323 seconds]
[k8s.io] Security Context [Feature:SecurityContext]
/go/src/github.com/openshift/origin/vendor/k8s.io/kubernetes/test/e2e/framework/framework.go:619
  should support seccomp alpha docker/default annotation
[Feature:Seccomp] [It]
  /go/src/github.com/openshift/origin/vendor/k8s.io/kubernetes/test/e2e/security_context.go:133

  Expected error:
      <*errors.errorString | 0xc420cbacf0>: {
          s: "expected \"2\" in container output: Expected\n
<string>: Seccomp:\t0\n    \nto contain substring\n    <string>: 2",
      }
      expected "2" in container output: Expected
          <string>: Seccomp:	0

      to contain substring
          <string>: 2
  not to have occurred
}
```

Signed-off-by: Antonio Murdaca <runcom@redhat.com>
This commit is contained in:
Antonio Murdaca 2017-09-18 12:50:39 +02:00
parent 4fadbea75d
commit e8cfe3b867
No known key found for this signature in database
GPG Key ID: B2BEAD150DE936B9
2 changed files with 41 additions and 7 deletions
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10
server/container_create.go
View File

@ -38,6 +38,7 @@ import (
const (
seccompUnconfined = "unconfined"
seccompRuntimeDefault = "runtime/default"
seccompDockerDefault = "docker/default"
seccompLocalhostPrefix = "localhost/"
scopePrefix = "crio"
@ -1033,18 +1034,13 @@ func (s *Server) setupSeccomp(specgen *generate.Generator, cname string, sbAnnot
specgen.Spec().Linux.Seccomp = nil
return nil
}
if profile == seccompRuntimeDefault {
if profile == seccompRuntimeDefault || profile == seccompDockerDefault {
return seccomp.LoadProfileFromStruct(s.seccompProfile, specgen)
}
if !strings.HasPrefix(profile, seccompLocalhostPrefix) {
return fmt.Errorf("unknown seccomp profile option: %q", profile)
}
//file, err := ioutil.ReadFile(filepath.Join(s.seccompProfileRoot, strings.TrimPrefix(profile, seccompLocalhostPrefix)))
//if err != nil {
//return err
//}
// TODO(runcom): setup from provided node's seccomp profile
// can't do this yet, see https://issues.k8s.io/36997
// FIXME: https://github.com/kubernetes/kubernetes/issues/39128
return nil
}

38
test/seccomp.bats
View File

@ -328,3 +328,41 @@ function teardown() {
skip "need https://issues.k8s.io/36997"
}
# test running with ctr docker/default
# test that we cannot run with a syscall blocked by the default seccomp profile
@test "ctr seccomp profiles docker/default" {
# this test requires seccomp, so skip this test if seccomp is not enabled.
enabled=$(is_seccomp_enabled)
if [[ "$enabled" -eq 0 ]]; then
skip "skip this test since seccomp is not enabled."
fi
sed -e 's/"chmod",//' "$CRIO_ROOT"/cri-o/seccomp.json > "$TESTDIR"/seccomp_profile1.json
sed -i 's/"fchmod",//' "$TESTDIR"/seccomp_profile1.json
sed -i 's/"fchmodat",//g' "$TESTDIR"/seccomp_profile1.json
start_crio "$TESTDIR"/seccomp_profile1.json
sed -e 's/%VALUE%/,"security\.alpha\.kubernetes\.io\/seccomp\/container\/k8s_testname2_seccomp2_redhat\.test\.crio_redhat-test-crio_0": "docker\/default"/g' "$TESTDATA"/sandbox_config_seccomp.json > "$TESTDIR"/seccomp2.json
run crioctl pod run --name seccomp2 --config "$TESTDIR"/seccomp2.json
echo "$output"
[ "$status" -eq 0 ]
pod_id="$output"
run crioctl ctr create --name testname2 --config "$TESTDATA"/container_redis.json --pod "$pod_id"
echo "$output"
[ "$status" -eq 0 ]
ctr_id="$output"
run crioctl ctr start --id "$ctr_id"
echo "$output"
[ "$status" -eq 0 ]
run crioctl ctr execsync --id "$ctr_id" chmod 777 .
echo "$output"
[ "$status" -eq 0 ]
[[ "$output" =~ "Exit code: 1" ]]
[[ "$output" =~ "Operation not permitted" ]]
cleanup_ctrs
cleanup_pods
stop_crio
}