Add support for proxy (#2286)

Co-authored-by: Nikola Jokic <jokicnikola07@gmail.com>
Co-authored-by: Tingluo Huang <tingluohuang@github.com>
Co-authored-by: Ferenc Hammerl <fhammerl@github.com>

apis/actions.github.com/v1alpha1/proxy_config_test.go

@@ -0,0 +1,118 @@
+package v1alpha1_test
+
+import (
+	"net/http"
+	"testing"
+
+	corev1 "k8s.io/api/core/v1"
+
+	"github.com/actions/actions-runner-controller/apis/actions.github.com/v1alpha1"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestProxyConfig_ToSecret(t *testing.T) {
+	config := &v1alpha1.ProxyConfig{
+		HTTP: &v1alpha1.ProxyServerConfig{
+			Url:                 "http://proxy.example.com:8080",
+			CredentialSecretRef: "my-secret",
+		},
+		HTTPS: &v1alpha1.ProxyServerConfig{
+			Url:                 "https://proxy.example.com:8080",
+			CredentialSecretRef: "my-secret",
+		},
+		NoProxy: []string{
+			"noproxy.example.com",
+			"noproxy2.example.com",
+		},
+	}
+
+	secretFetcher := func(string) (*corev1.Secret, error) {
+		return &corev1.Secret{
+			Data: map[string][]byte{
+				"username": []byte("username"),
+				"password": []byte("password"),
+			},
+		}, nil
+	}
+
+	result, err := config.ToSecretData(secretFetcher)
+	require.NoError(t, err)
+	require.NotNil(t, result)
+
+	assert.Equal(t, "http://username:password@proxy.example.com:8080", string(result["http_proxy"]))
+	assert.Equal(t, "https://username:password@proxy.example.com:8080", string(result["https_proxy"]))
+	assert.Equal(t, "noproxy.example.com,noproxy2.example.com", string(result["no_proxy"]))
+}
+
+func TestProxyConfig_ProxyFunc(t *testing.T) {
+	config := &v1alpha1.ProxyConfig{
+		HTTP: &v1alpha1.ProxyServerConfig{
+			Url:                 "http://proxy.example.com:8080",
+			CredentialSecretRef: "my-secret",
+		},
+		HTTPS: &v1alpha1.ProxyServerConfig{
+			Url:                 "https://proxy.example.com:8080",
+			CredentialSecretRef: "my-secret",
+		},
+		NoProxy: []string{
+			"noproxy.example.com",
+			"noproxy2.example.com",
+		},
+	}
+
+	secretFetcher := func(string) (*corev1.Secret, error) {
+		return &corev1.Secret{
+			Data: map[string][]byte{
+				"username": []byte("username"),
+				"password": []byte("password"),
+			},
+		}, nil
+	}
+
+	result, err := config.ProxyFunc(secretFetcher)
+	require.NoError(t, err)
+
+	tests := []struct {
+		name string
+		in   string
+		out  string
+	}{
+		{
+			name: "http target",
+			in:   "http://target.com",
+			out:  "http://username:password@proxy.example.com:8080",
+		},
+		{
+			name: "https target",
+			in:   "https://target.com",
+			out:  "https://username:password@proxy.example.com:8080",
+		},
+		{
+			name: "no proxy",
+			in:   "https://noproxy.example.com",
+			out:  "",
+		},
+		{
+			name: "no proxy 2",
+			in:   "https://noproxy2.example.com",
+			out:  "",
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			req, err := http.NewRequest("GET", test.in, nil)
+			require.NoError(t, err)
+			u, err := result(req)
+			require.NoError(t, err)
+
+			if test.out == "" {
+				assert.Nil(t, u)
+				return
+			}
+
+			assert.Equal(t, test.out, u.String())
+		})
+	}
+}