feat(datasource/metadata): Add datasource for CloudSigma

datasource/metadata/cloudsigma/server_context_test.go

@@ -0,0 +1,152 @@
+package cloudsigma
+
+import (
+	"encoding/json"
+	"reflect"
+	"testing"
+)
+
+type fakeCepgoClient struct {
+	raw  []byte
+	meta map[string]string
+	keys map[string]interface{}
+	err  error
+}
+
+func (f *fakeCepgoClient) All() (interface{}, error) {
+	return f.keys, f.err
+}
+
+func (f *fakeCepgoClient) Key(key string) (interface{}, error) {
+	return f.keys[key], f.err
+}
+
+func (f *fakeCepgoClient) Meta() (map[string]string, error) {
+	return f.meta, f.err
+}
+
+func (f *fakeCepgoClient) FetchRaw(key string) ([]byte, error) {
+	return f.raw, f.err
+}
+
+func TestServerContextFetchMetadata(t *testing.T) {
+	var metadata struct {
+		Hostname   string            `json:"name"`
+		PublicKeys map[string]string `json:"public_keys"`
+		LocalIPv4  string            `json:"local-ipv4"`
+		PublicIPv4 string            `json:"public-ipv4"`
+	}
+	client := new(fakeCepgoClient)
+	scs := NewServerContextService()
+	scs.client = client
+	client.raw = []byte(`{
+		"context": true,
+		"cpu": 4000,
+		"cpu_model": null,
+		"cpus_instead_of_cores": false,
+		"enable_numa": false,
+		"grantees": [],
+		"hv_relaxed": false,
+		"hv_tsc": false,
+		"jobs": [],
+		"mem": 4294967296,
+		"meta": {
+			"base64_fields": "cloudinit-user-data",
+			"cloudinit-user-data": "I2Nsb3VkLWNvbmZpZwoKaG9zdG5hbWU6IGNvcmVvczE=",
+			"ssh_public_key": "ssh-rsa AAAAB3NzaC1yc2E.../hQ5D5 john@doe"
+		},
+		"name": "coreos",
+		"nics": [
+			{
+				"runtime": {
+					"interface_type": "public",
+					"ip_v4": {
+						"uuid": "31.171.251.74"
+					},
+					"ip_v6": null
+				},
+				"vlan": null
+			}
+		],
+		"smp": 2,
+		"status": "running",
+		"uuid": "20a0059b-041e-4d0c-bcc6-9b2852de48b3"
+	}`)
+
+	metadataBytes, err := scs.FetchMetadata()
+	if err != nil {
+		t.Error(err.Error())
+	}
+
+	if err := json.Unmarshal(metadataBytes, &metadata); err != nil {
+		t.Error(err.Error())
+	}
+
+	if metadata.Hostname != "coreos" {
+		t.Errorf("Hostname is not 'coreos' but %s instead", metadata.Hostname)
+	}
+
+	if metadata.PublicKeys["john@doe"] != "ssh-rsa AAAAB3NzaC1yc2E.../hQ5D5 john@doe" {
+		t.Error("Public SSH Keys are not being read properly")
+	}
+
+	if metadata.LocalIPv4 != "" {
+		t.Errorf("Local IP is not empty but %s instead", metadata.LocalIPv4)
+	}
+
+	if metadata.PublicIPv4 != "31.171.251.74" {
+		t.Errorf("Local IP is not 31.171.251.74 but %s instead", metadata.PublicIPv4)
+	}
+}
+
+func TestServerContextFetchUserdata(t *testing.T) {
+	client := new(fakeCepgoClient)
+	scs := NewServerContextService()
+	scs.client = client
+	userdataSets := []struct {
+		in  map[string]string
+		err bool
+		out []byte
+	}{
+		{map[string]string{
+			"base64_fields":       "cloudinit-user-data",
+			"cloudinit-user-data": "aG9zdG5hbWU6IGNvcmVvc190ZXN0",
+		}, false, []byte("hostname: coreos_test")},
+		{map[string]string{
+			"cloudinit-user-data": "#cloud-config\\nhostname: coreos1",
+		}, false, []byte("#cloud-config\\nhostname: coreos1")},
+		{map[string]string{}, false, []byte{}},
+	}
+
+	for i, set := range userdataSets {
+		client.meta = set.in
+		got, err := scs.FetchUserdata()
+		if (err != nil) != set.err {
+			t.Errorf("case %d: bad error state (got %t, want %t)", i, err != nil, set.err)
+		}
+
+		if !reflect.DeepEqual(got, set.out) {
+			t.Errorf("case %d: got %s, want %s", i, got, set.out)
+		}
+	}
+}
+
+func TestServerContextDecodingBase64UserData(t *testing.T) {
+	base64Sets := []struct {
+		in  string
+		out bool
+	}{
+		{"cloudinit-user-data,foo,bar", true},
+		{"bar,cloudinit-user-data,foo,bar", true},
+		{"cloudinit-user-data", true},
+		{"", false},
+		{"foo", false},
+	}
+
+	for _, set := range base64Sets {
+		userdata := map[string]string{"base64_fields": set.in}
+		if isBase64Encoded("cloudinit-user-data", userdata) != set.out {
+			t.Errorf("isBase64Encoded(cloudinit-user-data, %s) should be %t", userdata, set.out)
+		}
+	}
+}