feat(controller,sysupgrade): openwrt upgrade controller

internal/agent/controller/openwrt/spec/sysupgrade/init.go

@@ -0,0 +1,17 @@
+package sysupgrade
+
+import (
+	_ "embed"
+
+	"forge.cadoles.com/Cadoles/emissary/internal/spec"
+	"github.com/pkg/errors"
+)
+
+//go:embed schema.json
+var schema []byte
+
+func init() {
+	if err := spec.Register(Name, schema); err != nil {
+		panic(errors.WithStack(err))
+	}
+}

internal/agent/controller/openwrt/spec/sysupgrade/schema.json

@@ -0,0 +1,20 @@
+{
+    "$schema": "https://json-schema.org/draft/2020-12/schema",
+    "$id": "https://sysupgrade.openwrt.emissary.cadoles.com/spec.json",
+    "title": "SysUpgradeSpec",
+    "description": "Emissary 'SysUpgrade' specification",
+    "type": "object",
+    "properties": {
+        "url": {
+            "type": "string"
+        },
+        "sha256sum": {
+            "type": "string"
+        },
+        "version": {
+            "type": "string"
+        }
+    },
+    "required": ["url", "sha256sum", "version"],
+    "additionalProperties": false
+}

internal/agent/controller/openwrt/spec/sysupgrade/spec.go

@@ -0,0 +1,38 @@
+package sysupgrade
+
+import (
+	"forge.cadoles.com/Cadoles/emissary/internal/spec"
+)
+
+const Name spec.Name = "sysupgrade.openwrt.emissary.cadoles.com"
+
+type Spec struct {
+	Revision  int    `json:"revision"`
+	URL       string `json:"url"`
+	SHA256Sum string `json:"sha256sum"`
+	Version   string `json:"version"`
+}
+
+func (s *Spec) SpecName() spec.Name {
+	return Name
+}
+
+func (s *Spec) SpecRevision() int {
+	return s.Revision
+}
+
+func (s *Spec) SpecData() map[string]any {
+	return map[string]any{
+		"url":       s.URL,
+		"version":   s.Version,
+		"sha256sum": s.SHA256Sum,
+	}
+}
+
+func NewSpec() *Spec {
+	return &Spec{
+		Revision: -1,
+	}
+}
+
+var _ spec.Spec = &Spec{}

internal/agent/controller/openwrt/spec/sysupgrade/testdata/spec-ok.json

@@ -0,0 +1,9 @@
+{
+  "name": "sysupgrade.openwrt.emissary.cadoles.com",
+  "data": {
+    "url": "http://example.com/firmware.img",
+    "sha256sum": "58019192dacdae17755707719707db007e26dac856102280583fbd18427dd352",
+    "version": "0.0.0"
+  },
+  "revision": 0
+}

internal/agent/controller/openwrt/spec/sysupgrade/validator_test.go

@@ -0,0 +1,65 @@
+package sysupgrade
+
+import (
+	"context"
+	"encoding/json"
+	"io/ioutil"
+	"testing"
+
+	"forge.cadoles.com/Cadoles/emissary/internal/spec"
+	"github.com/pkg/errors"
+)
+
+type validatorTestCase struct {
+	Name       string
+	Source     string
+	ShouldFail bool
+}
+
+var validatorTestCases = []validatorTestCase{
+	{
+		Name:       "SpecOK",
+		Source:     "testdata/spec-ok.json",
+		ShouldFail: false,
+	},
+}
+
+func TestValidator(t *testing.T) {
+	t.Parallel()
+
+	validator := spec.NewValidator()
+	if err := validator.Register(Name, schema); err != nil {
+		t.Fatalf("+%v", errors.WithStack(err))
+	}
+
+	for _, tc := range validatorTestCases {
+		func(tc validatorTestCase) {
+			t.Run(tc.Name, func(t *testing.T) {
+				t.Parallel()
+
+				rawSpec, err := ioutil.ReadFile(tc.Source)
+				if err != nil {
+					t.Fatalf("+%v", errors.WithStack(err))
+				}
+
+				var spec spec.RawSpec
+
+				if err := json.Unmarshal(rawSpec, &spec); err != nil {
+					t.Fatalf("+%v", errors.WithStack(err))
+				}
+
+				ctx := context.Background()
+
+				err = validator.Validate(ctx, &spec)
+
+				if !tc.ShouldFail && err != nil {
+					t.Errorf("+%v", errors.WithStack(err))
+				}
+
+				if tc.ShouldFail && err == nil {
+					t.Error("validation should have failed")
+				}
+			})
+		}(tc)
+	}
+}