telegraf/config/config_test.go

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package config
import (
"os"
"testing"
"time"
"github.com/influxdata/telegraf/internal"
"github.com/influxdata/telegraf/models"
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"github.com/influxdata/telegraf/plugins/inputs"
"github.com/influxdata/telegraf/plugins/inputs/exec"
"github.com/influxdata/telegraf/plugins/inputs/http_listener_v2"
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"github.com/influxdata/telegraf/plugins/inputs/memcached"
"github.com/influxdata/telegraf/plugins/inputs/procstat"
httpOut "github.com/influxdata/telegraf/plugins/outputs/http"
"github.com/influxdata/telegraf/plugins/parsers"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestConfig_LoadSingleInputWithEnvVars(t *testing.T) {
c := NewConfig()
err := os.Setenv("MY_TEST_SERVER", "192.168.1.1")
assert.NoError(t, err)
err = os.Setenv("TEST_INTERVAL", "10s")
assert.NoError(t, err)
c.LoadConfig("./testdata/single_plugin_env_vars.toml")
memcached := inputs.Inputs["memcached"]().(*memcached.Memcached)
memcached.Servers = []string{"192.168.1.1"}
filter := models.Filter{
NameDrop: []string{"metricname2"},
NamePass: []string{"metricname1", "ip_192.168.1.1_name"},
FieldDrop: []string{"other", "stuff"},
FieldPass: []string{"some", "strings"},
TagDrop: []models.TagFilter{
{
Name: "badtag",
Filter: []string{"othertag"},
},
},
TagPass: []models.TagFilter{
{
Name: "goodtag",
Filter: []string{"mytag"},
},
},
}
assert.NoError(t, filter.Compile())
mConfig := &models.InputConfig{
Name: "memcached",
Filter: filter,
Interval: 10 * time.Second,
}
mConfig.Tags = make(map[string]string)
assert.Equal(t, memcached, c.Inputs[0].Input,
"Testdata did not produce a correct memcached struct.")
assert.Equal(t, mConfig, c.Inputs[0].Config,
"Testdata did not produce correct memcached metadata.")
}
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func TestConfig_LoadSingleInput(t *testing.T) {
c := NewConfig()
c.LoadConfig("./testdata/single_plugin.toml")
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memcached := inputs.Inputs["memcached"]().(*memcached.Memcached)
memcached.Servers = []string{"localhost"}
filter := models.Filter{
NameDrop: []string{"metricname2"},
NamePass: []string{"metricname1"},
FieldDrop: []string{"other", "stuff"},
FieldPass: []string{"some", "strings"},
TagDrop: []models.TagFilter{
{
Name: "badtag",
Filter: []string{"othertag"},
},
},
TagPass: []models.TagFilter{
{
Name: "goodtag",
Filter: []string{"mytag"},
},
},
}
assert.NoError(t, filter.Compile())
mConfig := &models.InputConfig{
Name: "memcached",
Filter: filter,
Interval: 5 * time.Second,
}
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mConfig.Tags = make(map[string]string)
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assert.Equal(t, memcached, c.Inputs[0].Input,
"Testdata did not produce a correct memcached struct.")
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assert.Equal(t, mConfig, c.Inputs[0].Config,
"Testdata did not produce correct memcached metadata.")
}
func TestConfig_LoadDirectory(t *testing.T) {
c := NewConfig()
err := c.LoadConfig("./testdata/single_plugin.toml")
if err != nil {
t.Error(err)
}
err = c.LoadDirectory("./testdata/subconfig")
if err != nil {
t.Error(err)
}
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memcached := inputs.Inputs["memcached"]().(*memcached.Memcached)
memcached.Servers = []string{"localhost"}
filter := models.Filter{
NameDrop: []string{"metricname2"},
NamePass: []string{"metricname1"},
FieldDrop: []string{"other", "stuff"},
FieldPass: []string{"some", "strings"},
TagDrop: []models.TagFilter{
{
Name: "badtag",
Filter: []string{"othertag"},
},
},
TagPass: []models.TagFilter{
{
Name: "goodtag",
Filter: []string{"mytag"},
},
},
}
assert.NoError(t, filter.Compile())
mConfig := &models.InputConfig{
Name: "memcached",
Filter: filter,
Interval: 5 * time.Second,
}
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mConfig.Tags = make(map[string]string)
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assert.Equal(t, memcached, c.Inputs[0].Input,
"Testdata did not produce a correct memcached struct.")
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assert.Equal(t, mConfig, c.Inputs[0].Config,
"Testdata did not produce correct memcached metadata.")
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ex := inputs.Inputs["exec"]().(*exec.Exec)
p, err := parsers.NewParser(&parsers.Config{
MetricName: "exec",
DataFormat: "json",
JSONStrict: true,
})
assert.NoError(t, err)
ex.SetParser(p)
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ex.Command = "/usr/bin/myothercollector --foo=bar"
eConfig := &models.InputConfig{
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Name: "exec",
MeasurementSuffix: "_myothercollector",
}
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eConfig.Tags = make(map[string]string)
exec := c.Inputs[1].Input.(*exec.Exec)
require.NotNil(t, exec.Log)
exec.Log = nil
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assert.Equal(t, ex, c.Inputs[1].Input,
"Merged Testdata did not produce a correct exec struct.")
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assert.Equal(t, eConfig, c.Inputs[1].Config,
"Merged Testdata did not produce correct exec metadata.")
memcached.Servers = []string{"192.168.1.1"}
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assert.Equal(t, memcached, c.Inputs[2].Input,
"Testdata did not produce a correct memcached struct.")
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assert.Equal(t, mConfig, c.Inputs[2].Config,
"Testdata did not produce correct memcached metadata.")
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pstat := inputs.Inputs["procstat"]().(*procstat.Procstat)
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pstat.PidFile = "/var/run/grafana-server.pid"
pConfig := &models.InputConfig{Name: "procstat"}
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pConfig.Tags = make(map[string]string)
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assert.Equal(t, pstat, c.Inputs[3].Input,
"Merged Testdata did not produce a correct procstat struct.")
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assert.Equal(t, pConfig, c.Inputs[3].Config,
"Merged Testdata did not produce correct procstat metadata.")
}
func TestConfig_LoadSpecialTypes(t *testing.T) {
c := NewConfig()
err := c.LoadConfig("./testdata/special_types.toml")
assert.NoError(t, err)
require.Equal(t, 1, len(c.Inputs))
inputHTTPListener, ok := c.Inputs[0].Input.(*http_listener_v2.HTTPListenerV2)
assert.Equal(t, true, ok)
// Tests telegraf duration parsing.
assert.Equal(t, internal.Duration{Duration: time.Second}, inputHTTPListener.WriteTimeout)
// Tests telegraf size parsing.
assert.Equal(t, internal.Size{Size: 1024 * 1024}, inputHTTPListener.MaxBodySize)
// Tests toml multiline basic strings.
assert.Equal(t, "/path/to/my/cert\n", inputHTTPListener.TLSCert)
}
func TestConfig_FieldNotDefined(t *testing.T) {
c := NewConfig()
err := c.LoadConfig("./testdata/invalid_field.toml")
require.Error(t, err, "invalid field name")
assert.Equal(t, "Error loading config file ./testdata/invalid_field.toml: Error parsing http_listener_v2, line 2: field corresponding to `not_a_field' is not defined in http_listener_v2.HTTPListenerV2", err.Error())
}
func TestConfig_WrongFieldType(t *testing.T) {
c := NewConfig()
err := c.LoadConfig("./testdata/wrong_field_type.toml")
require.Error(t, err, "invalid field type")
assert.Equal(t, "Error loading config file ./testdata/wrong_field_type.toml: Error parsing http_listener_v2, line 2: (http_listener_v2.HTTPListenerV2.Port) cannot unmarshal TOML string into int", err.Error())
c = NewConfig()
err = c.LoadConfig("./testdata/wrong_field_type2.toml")
require.Error(t, err, "invalid field type2")
assert.Equal(t, "Error loading config file ./testdata/wrong_field_type2.toml: Error parsing http_listener_v2, line 2: (http_listener_v2.HTTPListenerV2.Methods) cannot unmarshal TOML string into []string", err.Error())
}
func TestConfig_InlineTables(t *testing.T) {
// #4098
c := NewConfig()
err := c.LoadConfig("./testdata/inline_table.toml")
assert.NoError(t, err)
require.Equal(t, 2, len(c.Outputs))
outputHTTP, ok := c.Outputs[1].Output.(*httpOut.HTTP)
assert.Equal(t, true, ok)
assert.Equal(t, map[string]string{"Authorization": "Token $TOKEN", "Content-Type": "application/json"}, outputHTTP.Headers)
assert.Equal(t, []string{"org_id"}, c.Outputs[0].Config.Filter.TagInclude)
}
func TestConfig_SliceComment(t *testing.T) {
t.Skipf("Skipping until #3642 is resolved")
c := NewConfig()
err := c.LoadConfig("./testdata/slice_comment.toml")
assert.NoError(t, err)
require.Equal(t, 1, len(c.Outputs))
outputHTTP, ok := c.Outputs[0].Output.(*httpOut.HTTP)
assert.Equal(t, []string{"test"}, outputHTTP.Scopes)
assert.Equal(t, true, ok)
}
func TestConfig_BadOrdering(t *testing.T) {
// #3444: when not using inline tables, care has to be taken so subsequent configuration
// doesn't become part of the table. This is not a bug, but TOML syntax.
c := NewConfig()
err := c.LoadConfig("./testdata/non_slice_slice.toml")
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())
}