specgen/generate: Factor out setting resource limits from CompleteSpec

This avoids setting values in the spec which are not supported on
FreeBSD - including these values causes warning messages for the
unsupported features.

[NO NEW TESTS NEEDED]

Signed-off-by: Doug Rabson <dfr@rabson.org>

1 files changed, 22 insertions, 0 deletions

diff --git a/pkg/specgen/resources_linux.go b/pkg/specgen/resources_linux.go
new file mode 100644
index 000000000..ffa9e5786
--- /dev/null
+++ b/pkg/specgen/resources_linux.go
@@ -0,0 +1,22 @@
+package specgen
+
+import (
+	"github.com/containers/common/pkg/config"
+	spec "github.com/opencontainers/runtime-spec/specs-go"
+)
+
+func (s *SpecGenerator) InitResourceLimits(rtc *config.Config) {
+	if s.ResourceLimits == nil || s.ResourceLimits.Pids == nil {
+		if s.CgroupsMode != "disabled" {
+			limit := rtc.PidsLimit()
+			if limit != 0 {
+				if s.ResourceLimits == nil {
+					s.ResourceLimits = &spec.LinuxResources{}
+				}
+				s.ResourceLimits.Pids = &spec.LinuxPids{
+					Limit: limit,
+				}
+			}
+		}
+	}
+}