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Fix using empty string as the namespace prefix in azure_monitor output plugin (#8282) 

* Fix using empty string as the namespace prefix

Fixes #8256

* Test using empty string as the namespace prefix
This commit is contained in:
simnv 2020-10-20 19:16:22 +05:00 committed by GitHub
parent e3aa6eb577
commit 1696cca283
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2 changed files with 23 additions and 5 deletions
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21
config/config_test.go
View File

@ -12,6 +12,7 @@ import (
"github.com/influxdata/telegraf/plugins/inputs/http_listener_v2"
"github.com/influxdata/telegraf/plugins/inputs/memcached"
"github.com/influxdata/telegraf/plugins/inputs/procstat"
"github.com/influxdata/telegraf/plugins/outputs/azure_monitor"
httpOut "github.com/influxdata/telegraf/plugins/outputs/http"
"github.com/influxdata/telegraf/plugins/parsers"
"github.com/stretchr/testify/assert"
@ -257,3 +258,23 @@ func TestConfig_BadOrdering(t *testing.T) {
require.Error(t, err, "bad ordering")
assert.Equal(t, "Error loading config file ./testdata/non_slice_slice.toml: Error parsing http array, line 4: cannot unmarshal TOML array into string (need slice)", err.Error())
}
func TestConfig_AzureMonitorNamespacePrefix(t *testing.T) {
// #8256 Cannot use empty string as the namespace prefix
c := NewConfig()
defaultPrefixConfig := `[[outputs.azure_monitor]]`
err := c.LoadConfigData([]byte(defaultPrefixConfig))
assert.NoError(t, err)
azureMonitor, ok := c.Outputs[0].Output.(*azure_monitor.AzureMonitor)
assert.Equal(t, "Telegraf/", azureMonitor.NamespacePrefix)
assert.Equal(t, true, ok)
c = NewConfig()
customPrefixConfig := `[[outputs.azure_monitor]]
namespace_prefix = ""`
err = c.LoadConfigData([]byte(customPrefixConfig))
assert.NoError(t, err)
azureMonitor, ok = c.Outputs[0].Output.(*azure_monitor.AzureMonitor)
assert.Equal(t, "", azureMonitor.NamespacePrefix)
assert.Equal(t, true, ok)
}

7
plugins/outputs/azure_monitor/azure_monitor.go
View File

@ -155,10 +155,6 @@ func (a *AzureMonitor) Connect() error {
Timeout: a.Timeout.Duration,
}
if a.NamespacePrefix == "" {
a.NamespacePrefix = defaultNamespacePrefix
}
var err error
var region string
var resourceID string
@ -646,7 +642,8 @@ func (a *AzureMonitor) Reset() {
func init() {
outputs.Add("azure_monitor", func() telegraf.Output {
return &AzureMonitor{
timeFunc: time.Now,
timeFunc: time.Now,
NamespacePrefix: defaultNamespacePrefix,
}
})
}