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Use result and result_code in net_response

This commit is contained in:
Daniel Nelson 2018-05-08 16:04:28 -07:00
parent 54a0532604
commit 078eb47265
3 changed files with 101 additions and 113 deletions
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70
plugins/inputs/net_response/README.md
View File

@ -1,11 +1,12 @@
# Network Response Input Plugin
The input plugin test UDP/TCP connections response time.
It can also check response text.
The input plugin test UDP/TCP connections response time and can optional
verify text in the response.
### Configuration:
```
```toml
# Collect response time of a TCP or UDP connection
[[inputs.net_response]]
## Protocol, must be "tcp" or "udp"
## NOTE: because the "udp" protocol does not respond to requests, it requires
@ -13,11 +14,12 @@ It can also check response text.
protocol = "tcp"
## Server address (default localhost)
address = "localhost:80"
## Set timeout
timeout = "1s"
# timeout = "1s"
## Set read timeout (only used if expecting a response)
read_timeout = "1s"
# read_timeout = "1s"
## The following options are required for UDP checks. For TCP, they are
## optional. The plugin will send the given string to the server and then
@ -27,59 +29,29 @@ It can also check response text.
## expected string in answer
# expect = "ssh"
[[inputs.net_response]]
protocol = "tcp"
address = ":80"
# TCP or UDP 'ping' given url and collect response time in seconds
[[inputs.net_response]]
## Protocol, must be "tcp" or "udp"
protocol = "tcp"
## Server address (default localhost)
address = "github.com:80"
## Set timeout
timeout = "1s"
## Optional string sent to the server
send = "ssh"
## Optional expected string in answer
expect = "ssh"
## Set read timeout (only used if expecting a response)
read_timeout = "1s"
[[inputs.net_response]]
protocol = "udp"
address = "localhost:161"
timeout = "2s"
send = "hello server"
expect = "hello client"
## Uncomment to remove deprecated fields; recommended for new deploys
# fieldexclude = ["result_type", "string_found"]
```
### Measurements & Fields:
### Metrics:
- net_response
- response_time (float, seconds)
- success (int) # success 0, failure 1
- result_code (int) # success = 0, Failure = 1
- [**DEPRECATED**] result_type (string) # success, timeout, connection_failed, read_failed, string_mismatch
- [**DEPRECATED**] string_found (boolean)
### Tags:
- All measurements have the following tags:
- tags:
- server
- port
- protocol
- result_text (string) # This will contain the text from the now deprecated result_type
- result
- fields:
- response_time (float, seconds)
- success (int) # success 0, failure 1
- result_code (int, success = 0, timeout = 1, connection_failed = 2, read_failed = 3, string_mismatch = 4)
- result_type (string) **DEPRECATED in 1.7; use result tag**
- string_found (boolean) **DEPRECATED in 1.4; use result tag**
### Example Output:
```
net_response,server=influxdata.com,port=8080,protocol=tcp,host=localhost,result_text="timeout" result_code=1i,result_type="timeout" 1499310361000000000
net_response,server=influxdata.com,port=443,protocol=tcp,host=localhost,result_text="success" result_code=0i,result_type="success",response_time=0.088703864 1499310361000000000
net_response,protocol=tcp,host=localhost,server=this.domain.does.not.exist,port=443,result_text="connection_failed" result_code=1i,result_type="connection_failed" 1499310361000000000
net_response,protocol=udp,host=localhost,server=influxdata.com,port=8080,result_text="read_failed" result_code=1i,result_type="read_failed" 1499310362000000000
net_response,port=31338,protocol=udp,host=localhost,server=localhost,result_text="string_mismatch" result_code=1i,result_type="string_mismatch",string_found=false,response_time=0.00242682 1499310362000000000
net_response,protocol=udp,host=localhost,server=localhost,port=31338,result_text="success" response_time=0.001128598,result_code=0i,result_type="success",string_found=true 1499310362000000000
net_response,server=this.domain.does.not.exist,port=443,protocol=udp,host=localhost,result_text="connection_failed" result_code=1i,result_type="connection_failed" 1499310362000000000
net_response,port=8086,protocol=tcp,result=success,server=localhost response_time=0.000092948,result_code=0i,result_type="success" 1525820185000000000
net_response,port=8080,protocol=tcp,result=connection_failed,server=localhost result_code=2i,result_type="connection_failed" 1525820088000000000
net_response,port=8080,protocol=udp,result=read_failed,server=localhost result_code=3i,result_type="read_failed",string_found=false 1525820088000000000
```

93
plugins/inputs/net_response/net_response.go
View File

@ -13,6 +13,16 @@ import (
"github.com/influxdata/telegraf/plugins/inputs"
)
type ResultType uint64
const (
Success ResultType = 0
Timeout = 1
ConnectionFailed = 2
ReadFailed = 3
StringMismatch = 4
)
// NetResponse struct
type NetResponse struct {
Address string
@ -23,7 +33,7 @@ type NetResponse struct {
Protocol string
}
var description = "TCP or UDP 'ping' given url and collect response time in seconds"
var description = "Collect response time of a TCP or UDP connection"
// Description will return a short string to explain what the plugin does.
func (*NetResponse) Description() string {
@ -37,11 +47,12 @@ var sampleConfig = `
protocol = "tcp"
## Server address (default localhost)
address = "localhost:80"
## Set timeout
timeout = "1s"
# timeout = "1s"
## Set read timeout (only used if expecting a response)
read_timeout = "1s"
# read_timeout = "1s"
## The following options are required for UDP checks. For TCP, they are
## optional. The plugin will send the given string to the server and then
@ -50,6 +61,9 @@ var sampleConfig = `
# send = "ssh"
## expected string in answer
# expect = "ssh"
## Uncomment to remove deprecated fields
# fieldexclude = ["result_type", "string_found"]
`
// SampleConfig will return a complete configuration example with details about each field.
@ -72,13 +86,9 @@ func (n *NetResponse) TCPGather() (tags map[string]string, fields map[string]int
// Handle error
if err != nil {
if e, ok := err.(net.Error); ok && e.Timeout() {
tags["result_text"] = "timeout"
fields["result_code"] = 1
fields["result_type"] = "timeout"
setResult(Timeout, fields, tags, n.Expect)
} else {
tags["result_text"] = "connection_failed"
fields["result_code"] = 1
fields["result_type"] = "connection_failed"
setResult(ConnectionFailed, fields, tags, n.Expect)
}
return tags, fields
}
@ -103,31 +113,19 @@ func (n *NetResponse) TCPGather() (tags map[string]string, fields map[string]int
responseTime = time.Since(start).Seconds()
// Handle error
if err != nil {
tags["result_text"] = "read_failed"
fields["result_code"] = 1
fields["string_found"] = false
tags["result_type"] = "read_failed"
fields["success"] = 1
setResult(ReadFailed, fields, tags, n.Expect)
} else {
// Looking for string in answer
RegEx := regexp.MustCompile(`.*` + n.Expect + `.*`)
find := RegEx.FindString(string(data))
if find != "" {
tags["result_text"] = "success"
fields["result_code"] = 0
fields["result_type"] = "success"
fields["string_found"] = true
setResult(Success, fields, tags, n.Expect)
} else {
tags["result_text"] = "string_mismatch"
fields["result_code"] = 1
fields["result_type"] = "string_mismatch"
fields["string_found"] = false
setResult(StringMismatch, fields, tags, n.Expect)
}
}
} else {
tags["result_text"] = "success"
fields["result_code"] = 0
fields["result_type"] = "success"
setResult(Success, fields, tags, n.Expect)
}
fields["response_time"] = responseTime
return tags, fields
@ -148,9 +146,7 @@ func (n *NetResponse) UDPGather() (tags map[string]string, fields map[string]int
conn, err := net.DialUDP("udp", LocalAddr, udpAddr)
// Handle error
if err != nil {
tags["result_text"] = "connection_failed"
fields["result_code"] = 1
fields["result_type"] = "connection_failed"
setResult(ConnectionFailed, fields, tags, n.Expect)
return tags, fields
}
defer conn.Close()
@ -167,9 +163,7 @@ func (n *NetResponse) UDPGather() (tags map[string]string, fields map[string]int
responseTime := time.Since(start).Seconds()
// Handle error
if err != nil {
tags["result_text"] = "read_failed"
fields["result_code"] = 1
fields["result_type"] = "read_failed"
setResult(ReadFailed, fields, tags, n.Expect)
return tags, fields
}
@ -177,15 +171,9 @@ func (n *NetResponse) UDPGather() (tags map[string]string, fields map[string]int
RegEx := regexp.MustCompile(`.*` + n.Expect + `.*`)
find := RegEx.FindString(string(buf))
if find != "" {
tags["result_text"] = "success"
fields["result_code"] = 0
fields["result_type"] = "success"
fields["string_found"] = true
setResult(Success, fields, tags, n.Expect)
} else {
tags["result_text"] = "string_mismatch"
fields["result_code"] = 1
fields["result_type"] = "string_mismatch"
fields["string_found"] = false
setResult(StringMismatch, fields, tags, n.Expect)
}
fields["response_time"] = responseTime
@ -248,6 +236,33 @@ func (n *NetResponse) Gather(acc telegraf.Accumulator) error {
return nil
}
func setResult(result ResultType, fields map[string]interface{}, tags map[string]string, expect string) {
var tag string
switch result {
case Success:
tag = "success"
case Timeout:
tag = "timeout"
case ConnectionFailed:
tag = "connection_failed"
case ReadFailed:
tag = "read_failed"
case StringMismatch:
tag = "string_mismatch"
}
tags["result"] = tag
fields["result_code"] = uint64(result)
// deprecated in 1.7; use result tag
fields["result_type"] = tag
// deprecated in 1.4; use result tag
if expect != "" {
fields["string_found"] = result == Success
}
}
func init() {
inputs.Add("net_response", func() telegraf.Input {
return &NetResponse{}

51
plugins/inputs/net_response/net_response_test.go
View File

@ -98,14 +98,14 @@ func TestTCPError(t *testing.T) {
acc.AssertContainsTaggedFields(t,
"net_response",
map[string]interface{}{
"result_code": 1,
"result_code": uint64(2),
"result_type": "connection_failed",
},
map[string]string{
"server": "",
"port": "9999",
"protocol": "tcp",
"result_text": "connection_failed",
"server": "",
"port": "9999",
"protocol": "tcp",
"result": "connection_failed",
},
)
}
@ -138,16 +138,16 @@ func TestTCPOK1(t *testing.T) {
acc.AssertContainsTaggedFields(t,
"net_response",
map[string]interface{}{
"result_code": 0,
"result_code": uint64(0),
"result_type": "success",
"string_found": true,
"response_time": 1.0,
},
map[string]string{
"result_text": "success",
"server": "127.0.0.1",
"port": "2004",
"protocol": "tcp",
"result": "success",
"server": "127.0.0.1",
"port": "2004",
"protocol": "tcp",
},
)
// Waiting TCPserver
@ -182,16 +182,16 @@ func TestTCPOK2(t *testing.T) {
acc.AssertContainsTaggedFields(t,
"net_response",
map[string]interface{}{
"result_code": 1,
"result_code": uint64(4),
"result_type": "string_mismatch",
"string_found": false,
"response_time": 1.0,
},
map[string]string{
"result_text": "string_mismatch",
"server": "127.0.0.1",
"port": "2004",
"protocol": "tcp",
"result": "string_mismatch",
"server": "127.0.0.1",
"port": "2004",
"protocol": "tcp",
},
)
// Waiting TCPserver
@ -218,15 +218,16 @@ func TestUDPError(t *testing.T) {
acc.AssertContainsTaggedFields(t,
"net_response",
map[string]interface{}{
"result_code": 1,
"result_code": uint64(3),
"result_type": "read_failed",
"response_time": 1.0,
"string_found": false,
},
map[string]string{
"result_text": "read_failed",
"server": "",
"port": "9999",
"protocol": "udp",
"result": "read_failed",
"server": "",
"port": "9999",
"protocol": "udp",
},
)
}
@ -259,16 +260,16 @@ func TestUDPOK1(t *testing.T) {
acc.AssertContainsTaggedFields(t,
"net_response",
map[string]interface{}{
"result_code": 0,
"result_code": uint64(0),
"result_type": "success",
"string_found": true,
"response_time": 1.0,
},
map[string]string{
"result_text": "success",
"server": "127.0.0.1",
"port": "2004",
"protocol": "udp",
"result": "success",
"server": "127.0.0.1",
"port": "2004",
"protocol": "udp",
},
)
// Waiting TCPserver