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Start alertmanager with a random free address in tests

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This commit is contained in:
Fabian Reinartz 2015-09-30 17:33:49 +02:00
parent 957d108e67
commit 0539783eea
1 changed files with 21 additions and 2 deletions
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23
test/acceptance.go
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@ -5,6 +5,7 @@ import (
"encoding/json"
"fmt"
"io/ioutil"
"net"
"net/http"
"os"
"os/exec"
@ -49,6 +50,18 @@ func NewAcceptanceTest(t *testing.T, opts *AcceptanceOpts) *AcceptanceTest {
return test
}
func freeAddress() string {
// Let the OS allocate a free address, close it and hope
// it is still free when starting Alertmanager.
l, err := net.Listen("tcp", ":0")
if err != nil {
panic(err)
}
defer l.Close()
return l.Addr().String()
}
// Alertmanager returns a new structure that allows starting an instance
// of Alertmanager on a random port.
func (t *AcceptanceTest) Alertmanager() *Alertmanager {
@ -68,8 +81,14 @@ func (t *AcceptanceTest) Alertmanager() *Alertmanager {
t.Fatal(err)
}
am.url = fmt.Sprintf("http://localhost:%d", 9091)
am.cmd = exec.Command("../../alertmanager", "-config.file", cf.Name(), "-log.level=debug")
addr := freeAddress()
am.url = fmt.Sprintf("http://%s", addr)
am.cmd = exec.Command("../../alertmanager",
"-config.file", cf.Name(),
"-log.level", "debug",
"-web.listen-address", addr,
)
var outb, errb bytes.Buffer
am.cmd.Stdout = &outb