renaming plugins -> inputs
This commit is contained in:
Cameron Sparr
45
plugins/inputs/apache/README.md
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45
plugins/inputs/apache/README.md
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# Telegraf plugin: Apache
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#### Plugin arguments:
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- **urls** []string: List of apache-status URLs to collect from.
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#### Description
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The Apache plugin collects from the /server-status?auto URL. See
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[apache.org/server-status?auto](http://www.apache.org/server-status?auto) for an
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example. And
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[here](http://httpd.apache.org/docs/2.2/mod/mod_status.html) for the apache
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mod_status documentation.
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# Measurements:
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Meta:
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- tags: `port=<port>`, `server=url`
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- apache_TotalAccesses
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- apache_TotalkBytes
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- apache_CPULoad
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- apache_Uptime
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- apache_ReqPerSec
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- apache_BytesPerSec
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- apache_BytesPerReq
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- apache_BusyWorkers
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- apache_IdleWorkers
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- apache_ConnsTotal
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- apache_ConnsAsyncWriting
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- apache_ConnsAsyncKeepAlive
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- apache_ConnsAsyncClosing
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### Scoreboard measurements
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- apache_scboard_waiting
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- apache_scboard_starting
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- apache_scboard_reading
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- apache_scboard_sending
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- apache_scboard_keepalive
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- apache_scboard_dnslookup
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- apache_scboard_closing
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- apache_scboard_logging
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- apache_scboard_finishing
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- apache_scboard_idle_cleanup
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- apache_scboard_open
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170
plugins/inputs/apache/apache.go
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170
plugins/inputs/apache/apache.go
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package apache
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import (
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"bufio"
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"fmt"
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"net"
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"net/http"
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"net/url"
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"strconv"
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"strings"
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"sync"
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"time"
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"github.com/influxdb/telegraf/plugins/inputs"
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)
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type Apache struct {
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Urls []string
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}
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var sampleConfig = `
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# An array of Apache status URI to gather stats.
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urls = ["http://localhost/server-status?auto"]
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`
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func (n *Apache) SampleConfig() string {
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return sampleConfig
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}
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func (n *Apache) Description() string {
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return "Read Apache status information (mod_status)"
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}
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func (n *Apache) Gather(acc inputs.Accumulator) error {
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var wg sync.WaitGroup
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var outerr error
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for _, u := range n.Urls {
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addr, err := url.Parse(u)
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if err != nil {
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return fmt.Errorf("Unable to parse address '%s': %s", u, err)
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}
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wg.Add(1)
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go func(addr *url.URL) {
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defer wg.Done()
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outerr = n.gatherUrl(addr, acc)
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}(addr)
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}
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wg.Wait()
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return outerr
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}
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var tr = &http.Transport{
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ResponseHeaderTimeout: time.Duration(3 * time.Second),
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}
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var client = &http.Client{Transport: tr}
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func (n *Apache) gatherUrl(addr *url.URL, acc inputs.Accumulator) error {
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resp, err := client.Get(addr.String())
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if err != nil {
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return fmt.Errorf("error making HTTP request to %s: %s", addr.String(), err)
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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return fmt.Errorf("%s returned HTTP status %s", addr.String(), resp.Status)
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}
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tags := getTags(addr)
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sc := bufio.NewScanner(resp.Body)
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fields := make(map[string]interface{})
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for sc.Scan() {
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line := sc.Text()
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if strings.Contains(line, ":") {
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parts := strings.SplitN(line, ":", 2)
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key, part := strings.Replace(parts[0], " ", "", -1), strings.TrimSpace(parts[1])
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switch key {
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case "Scoreboard":
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for field, value := range n.gatherScores(part) {
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fields[field] = value
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}
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default:
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value, err := strconv.ParseFloat(part, 64)
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if err != nil {
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continue
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}
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fields[key] = value
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}
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}
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}
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acc.AddFields("apache", fields, tags)
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return nil
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}
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func (n *Apache) gatherScores(data string) map[string]interface{} {
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var waiting, open int = 0, 0
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var S, R, W, K, D, C, L, G, I int = 0, 0, 0, 0, 0, 0, 0, 0, 0
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for _, s := range strings.Split(data, "") {
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switch s {
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case "_":
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waiting++
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case "S":
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S++
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case "R":
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R++
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case "W":
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W++
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case "K":
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K++
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case "D":
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D++
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case "C":
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C++
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case "L":
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L++
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case "G":
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G++
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case "I":
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I++
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case ".":
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open++
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}
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}
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fields := map[string]interface{}{
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"scboard_waiting": float64(waiting),
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"scboard_starting": float64(S),
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"scboard_reading": float64(R),
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"scboard_sending": float64(W),
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"scboard_keepalive": float64(K),
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"scboard_dnslookup": float64(D),
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"scboard_closing": float64(C),
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"scboard_logging": float64(L),
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"scboard_finishing": float64(G),
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"scboard_idle_cleanup": float64(I),
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"scboard_open": float64(open),
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}
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return fields
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}
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// Get tag(s) for the apache plugin
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func getTags(addr *url.URL) map[string]string {
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h := addr.Host
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host, port, err := net.SplitHostPort(h)
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if err != nil {
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host = addr.Host
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if addr.Scheme == "http" {
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port = "80"
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} else if addr.Scheme == "https" {
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port = "443"
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} else {
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port = ""
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}
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}
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return map[string]string{"server": host, "port": port}
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}
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func init() {
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inputs.Add("apache", func() inputs.Input {
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return &Apache{}
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})
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}
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73
plugins/inputs/apache/apache_test.go
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73
plugins/inputs/apache/apache_test.go
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@@ -0,0 +1,73 @@
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package apache
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import (
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"fmt"
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"net/http"
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"net/http/httptest"
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"testing"
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"github.com/influxdb/telegraf/testutil"
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"github.com/stretchr/testify/require"
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)
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var apacheStatus = `
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Total Accesses: 129811861
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Total kBytes: 5213701865
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CPULoad: 6.51929
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Uptime: 941553
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ReqPerSec: 137.87
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BytesPerSec: 5670240
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BytesPerReq: 41127.4
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BusyWorkers: 270
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IdleWorkers: 630
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ConnsTotal: 1451
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ConnsAsyncWriting: 32
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ConnsAsyncKeepAlive: 945
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ConnsAsyncClosing: 205
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Scoreboard: WW_____W_RW_R_W__RRR____WR_W___WW________W_WW_W_____R__R_WR__WRWR_RRRW___R_RWW__WWWRW__R_RW___RR_RW_R__W__WR_WWW______WWR__R___R_WR_W___RW______RR________________W______R__RR______W________________R____R__________________________RW_W____R_____W_R_________________R____RR__W___R_R____RW______R____W______W_W_R_R______R__R_R__________R____W_______WW____W____RR__W_____W_R_______W__________W___W____________W_______WRR_R_W____W_____R____W_WW_R____RRW__W............................................................................................................................................................................................................................................................................................................WRRWR____WR__RR_R___RWR_________W_R____RWRRR____R_R__RW_R___WWW_RW__WR_RRR____W___R____WW_R__R___RR_W_W_RRRRWR__RRWR__RRW_W_RRRW_R_RR_W__RR_RWRR_R__R___RR_RR______R__RR____R_____W_R_R_R__R__R__________W____WW_R___R_R___R_________RR__RR____RWWWW___W_R________R_R____R_W___W___R___W_WRRWW_______R__W_RW_______R________RR__R________W_______________________W_W______________RW_________WR__R___R__R_______________WR_R_________W___RW_____R____________W____......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
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`
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func TestHTTPApache(t *testing.T) {
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ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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w.WriteHeader(http.StatusOK)
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fmt.Fprintln(w, apacheStatus)
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}))
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defer ts.Close()
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a := Apache{
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Urls: []string{ts.URL},
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}
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var acc testutil.Accumulator
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err := a.Gather(&acc)
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require.NoError(t, err)
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fields := map[string]interface{}{
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"TotalAccesses": float64(1.29811861e+08),
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"TotalkBytes": float64(5.213701865e+09),
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"CPULoad": float64(6.51929),
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"Uptime": float64(941553),
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"ReqPerSec": float64(137.87),
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"BytesPerSec": float64(5.67024e+06),
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"BytesPerReq": float64(41127.4),
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"BusyWorkers": float64(270),
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"IdleWorkers": float64(630),
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"ConnsTotal": float64(1451),
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"ConnsAsyncWriting": float64(32),
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"ConnsAsyncKeepAlive": float64(945),
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"ConnsAsyncClosing": float64(205),
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"scboard_waiting": float64(630),
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"scboard_starting": float64(0),
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"scboard_reading": float64(157),
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"scboard_sending": float64(113),
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"scboard_keepalive": float64(0),
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"scboard_dnslookup": float64(0),
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"scboard_closing": float64(0),
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"scboard_logging": float64(0),
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"scboard_finishing": float64(0),
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"scboard_idle_cleanup": float64(0),
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"scboard_open": float64(2850),
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}
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acc.AssertContainsFields(t, "apache", fields)
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}
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