Nvidia Bluefield ignition provider

Author: eelgaev

internal/providers/nvidia_bluefield/nvidia_bluefield.go

@@ -0,0 +1,58 @@
+// Copyright 2025 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package nvidia_bluefield
+
+import (
+	"os"
+
+	"github.com/coreos/ignition/v2/config/v3_6_experimental/types"
+	"github.com/coreos/ignition/v2/internal/platform"
+	"github.com/coreos/ignition/v2/internal/providers/util"
+	"github.com/coreos/ignition/v2/internal/resource"
+
+	"github.com/coreos/vcontext/report"
+)
+
+const (
+	bootfifoPath = "/sys/bus/platform/devices/MLNXBF04:00/bootfifo"
+)
+
+func init() {
+	platform.Register(platform.Provider{
+		Name:  "nvidia-bluefield",
+		Fetch: fetchConfig,
+	})
+}
+
+func fetchConfig(f *resource.Fetcher) (cfg types.Config, rpt report.Report, err error) {
+	data, err := os.ReadFile(bootfifoPath)
+	if os.IsNotExist(err) {
+		f.Logger.Info("Nvidia BlueField bootfifo was not found. Ignoring...")
+		cfg, rpt, err = util.ParseConfig(f.Logger, []byte{})
+		return
+	} else if err != nil {
+		f.Logger.Err("couldn't read Nvidia BlueField config: %v", err)
+		return
+	}
+
+	if len(data) == 0 {
+		f.Logger.Info("no config found in Nvidia BlueField bootfifo")
+		cfg, rpt, err = util.ParseConfig(f.Logger, []byte{})
+		return
+	}
+
+	cfg, rpt, err = util.ParseConfig(f.Logger, data)
+	return
+}

internal/register/providers.go

@@ -32,6 +32,7 @@ import (
 	_ "github.com/coreos/ignition/v2/internal/providers/kubevirt"
 	_ "github.com/coreos/ignition/v2/internal/providers/metal"
 	_ "github.com/coreos/ignition/v2/internal/providers/nutanix"
+	_ "github.com/coreos/ignition/v2/internal/providers/nvidia_bluefield"
 	_ "github.com/coreos/ignition/v2/internal/providers/openstack"
 	_ "github.com/coreos/ignition/v2/internal/providers/oraclecloud"
 	_ "github.com/coreos/ignition/v2/internal/providers/packet"