71 lines
2.2 KiB
Go
71 lines
2.2 KiB
Go
package inputs
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import (
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"errors"
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"fmt"
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"strconv"
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"strings"
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)
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// LogParserPlugin is based on telegraf LogParserPlugin.
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type LogParserPlugin struct {
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baseInput
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Files []string `json:"files"`
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}
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// PluginName is based on telegraf plugin name.
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func (l *LogParserPlugin) PluginName() string {
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return "logparser"
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}
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// TOML encodes to toml string
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func (l *LogParserPlugin) TOML() string {
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s := make([]string, len(l.Files))
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for k, v := range l.Files {
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s[k] = strconv.Quote(v)
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}
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return fmt.Sprintf(`[[inputs.%s]]
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## Log files to parse.
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## These accept standard unix glob matching rules, but with the addition of
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## ** as a "super asterisk". ie:
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## /var/log/**.log -> recursively find all .log files in /var/log
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## /var/log/*/*.log -> find all .log files with a parent dir in /var/log
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## /var/log/apache.log -> only tail the apache log file
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files = [%s]
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## Read files that currently exist from the beginning. Files that are created
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## while telegraf is running (and that match the "files" globs) will always
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## be read from the beginning.
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from_beginning = false
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## Method used to watch for file updates. Can be either "inotify" or "poll".
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# watch_method = "inotify"
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## Parse logstash-style "grok" patterns:
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[inputs.logparser.grok]
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## This is a list of patterns to check the given log file(s) for.
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## Note that adding patterns here increases processing time. The most
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## efficient configuration is to have one pattern per logparser.
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## Other common built-in patterns are:
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## %%{COMMON_LOG_FORMAT} (plain apache & nginx access logs)
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## %%{COMBINED_LOG_FORMAT} (access logs + referrer & agent)
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patterns = ["%%{COMBINED_LOG_FORMAT}"]
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## Name of the outputted measurement name.
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measurement = "apache_access_log"
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`, l.PluginName(), strings.Join(s, ", "))
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}
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// UnmarshalTOML decodes the parsed data to the object
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func (l *LogParserPlugin) UnmarshalTOML(data interface{}) error {
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dataOK, ok := data.(map[string]interface{})
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if !ok {
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return errors.New("bad files for logparser input plugin")
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}
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files, ok := dataOK["files"].([]interface{})
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if !ok {
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return errors.New("files is not an array for logparser input plugin")
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}
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for _, fi := range files {
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l.Files = append(l.Files, fi.(string))
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}
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return nil
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}
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