mirror of
https://github.com/prometheus/alertmanager
synced 2024-12-20 21:31:50 +00:00
f5a258dd1d
The memberlist library fails when it can't find a private address and no advertise address is given. To return a helpful message to the user, AlertManager mimics the logic from memberlist. However the code had a bug that swallowed the error message and made it difficult for the user to understand how to fix the problem. Signed-off-by: Simon Pasquier <spasquie@redhat.com>
93 lines
2.0 KiB
Go
93 lines
2.0 KiB
Go
// Copyright 2018 Prometheus Team
|
|
// 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 cluster
|
|
|
|
import (
|
|
"errors"
|
|
"net"
|
|
"testing"
|
|
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
func TestCalculateAdvertiseAddress(t *testing.T) {
|
|
old := getPrivateAddress
|
|
defer func() {
|
|
getPrivateAddress = old
|
|
}()
|
|
|
|
cases := []struct {
|
|
fn getPrivateIPFunc
|
|
bind, advertise string
|
|
|
|
expectedIP net.IP
|
|
err bool
|
|
}{
|
|
{
|
|
bind: "192.0.2.1",
|
|
advertise: "",
|
|
|
|
expectedIP: net.ParseIP("192.0.2.1"),
|
|
err: false,
|
|
},
|
|
{
|
|
bind: "192.0.2.1",
|
|
advertise: "192.0.2.2",
|
|
|
|
expectedIP: net.ParseIP("192.0.2.2"),
|
|
err: false,
|
|
},
|
|
{
|
|
fn: func() (string, error) { return "192.0.2.1", nil },
|
|
bind: "0.0.0.0",
|
|
advertise: "",
|
|
|
|
expectedIP: net.ParseIP("192.0.2.1"),
|
|
err: false,
|
|
},
|
|
{
|
|
fn: func() (string, error) { return "", errors.New("some error") },
|
|
bind: "0.0.0.0",
|
|
advertise: "",
|
|
|
|
err: true,
|
|
},
|
|
{
|
|
fn: func() (string, error) { return "invalid", nil },
|
|
bind: "0.0.0.0",
|
|
advertise: "",
|
|
|
|
err: true,
|
|
},
|
|
{
|
|
fn: func() (string, error) { return "", nil },
|
|
bind: "0.0.0.0",
|
|
advertise: "",
|
|
|
|
err: true,
|
|
},
|
|
}
|
|
|
|
for _, c := range cases {
|
|
getPrivateAddress = c.fn
|
|
got, err := calculateAdvertiseAddress(c.bind, c.advertise)
|
|
if c.err {
|
|
require.Error(t, err)
|
|
} else {
|
|
require.NoError(t, err)
|
|
require.Equal(t, c.expectedIP.String(), got.String())
|
|
}
|
|
}
|
|
}
|