Files
buildkit/solver/llbsolver/ops/opsutils/validate.go
Tonis Tiigi 9acc6d30eb refactor buildinfo into provenance capture
Change how provenance information is captured from builds.

While previously frontend passed the buildinfo
sources with metadata, now all information is captured
through buildkit. A frontend does not need to implement
buildinfo and can't set incorrect/incomplete buildinfo
for a build result.

All LLB operations can now collect as much provenance
info as they like that will be used when making the
attestation. Previously this was limited to a single Pin
value. For example now we also detect secrets and SSH IDs
that the build uses, or if it accesses network, if local
sources are used etc.. The new design makes sure this
can be easily extended in the future.

Provenance capture can now detect builds that do
multiple separate subsolves in sequence. For example,
first subsolve gathers the sources for the build and
second one builds from immutable sources without a
network connection. If first solve does not participate
in final build result it does not end up in provenance.

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
2022-11-15 19:37:03 -08:00

64 lines
1.3 KiB
Go

package opsutils
import (
"github.com/moby/buildkit/solver/pb"
"github.com/pkg/errors"
)
func Validate(op *pb.Op) error {
if op == nil {
return errors.Errorf("invalid nil op")
}
switch op := op.Op.(type) {
case *pb.Op_Source:
if op.Source == nil {
return errors.Errorf("invalid nil source op")
}
case *pb.Op_Exec:
if op.Exec == nil {
return errors.Errorf("invalid nil exec op")
}
if op.Exec.Meta == nil {
return errors.Errorf("invalid exec op with no meta")
}
if len(op.Exec.Meta.Args) == 0 {
return errors.Errorf("invalid exec op with no args")
}
if len(op.Exec.Mounts) == 0 {
return errors.Errorf("invalid exec op with no mounts")
}
isRoot := false
for _, m := range op.Exec.Mounts {
if m.Dest == pb.RootMount {
isRoot = true
break
}
}
if !isRoot {
return errors.Errorf("invalid exec op with no rootfs")
}
case *pb.Op_File:
if op.File == nil {
return errors.Errorf("invalid nil file op")
}
if len(op.File.Actions) == 0 {
return errors.Errorf("invalid file op with no actions")
}
case *pb.Op_Build:
if op.Build == nil {
return errors.Errorf("invalid nil build op")
}
case *pb.Op_Merge:
if op.Merge == nil {
return errors.Errorf("invalid nil merge op")
}
case *pb.Op_Diff:
if op.Diff == nil {
return errors.Errorf("invalid nil diff op")
}
}
return nil
}