зеркало из https://github.com/microsoft/docker.git
Merge pull request #17891 from splunk/splunk-logger-support-for-tag-env-labels
Allow configurable metadata for Splunk log driver
This commit is contained in:
Alexander Morozov
Коммит
a3065fa48f
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@ -337,7 +337,7 @@ __docker_log_driver_options() {
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local journald_options="env labels"
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local json_file_options="env labels max-file max-size"
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local syslog_options="syslog-address syslog-facility tag"
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local splunk_options="splunk-caname splunk-capath splunk-index splunk-insecureskipverify splunk-source splunk-sourcetype splunk-token splunk-url"
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local splunk_options="env labels splunk-caname splunk-capath splunk-index splunk-insecureskipverify splunk-source splunk-sourcetype splunk-token splunk-url tag"
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local all_options="$fluentd_options $gelf_options $journald_options $json_file_options $syslog_options $splunk_options"
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@ -16,6 +16,7 @@ import (
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"github.com/Sirupsen/logrus"
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"github.com/docker/docker/daemon/logger"
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"github.com/docker/docker/daemon/logger/loggerutils"
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"github.com/docker/docker/pkg/urlutil"
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)
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@ -29,6 +30,9 @@ const (
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splunkCAPathKey = "splunk-capath"
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splunkCANameKey = "splunk-caname"
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splunkInsecureSkipVerifyKey = "splunk-insecureskipverify"
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envKey = "env"
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labelsKey = "labels"
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tagKey = "tag"
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)
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type splunkLogger struct {
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@ -50,9 +54,10 @@ type splunkMessage struct {
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}
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type splunkMessageEvent struct {
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Line string `json:"line"`
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ContainerID string `json:"containerId"`
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Source string `json:"source"`
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Line string `json:"line"`
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Source string `json:"source"`
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Tag string `json:"tag,omitempty"`
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Attrs map[string]string `json:"attrs,omitempty"`
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}
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func init() {
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@ -126,6 +131,13 @@ func New(ctx logger.Context) (logger.Logger, error) {
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nullMessage.SourceType = ctx.Config[splunkSourceTypeKey]
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nullMessage.Index = ctx.Config[splunkIndexKey]
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tag, err := loggerutils.ParseLogTag(ctx, "{{.ID}}")
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if err != nil {
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return nil, err
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}
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nullMessage.Event.Tag = tag
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nullMessage.Event.Attrs = ctx.ExtraAttributes(nil)
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logger := &splunkLogger{
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client: client,
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transport: transport,
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@ -146,11 +158,8 @@ func (l *splunkLogger) Log(msg *logger.Message) error {
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// Construct message as a copy of nullMessage
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message := *l.nullMessage
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message.Time = fmt.Sprintf("%f", float64(msg.Timestamp.UnixNano())/1000000000)
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message.Event = splunkMessageEvent{
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Line: string(msg.Line),
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ContainerID: msg.ContainerID,
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Source: msg.Source,
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}
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message.Event.Line = string(msg.Line)
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message.Event.Source = msg.Source
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jsonEvent, err := json.Marshal(&message)
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if err != nil {
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@ -201,6 +210,9 @@ func ValidateLogOpt(cfg map[string]string) error {
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case splunkCAPathKey:
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case splunkCANameKey:
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case splunkInsecureSkipVerifyKey:
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case envKey:
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case labelsKey:
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case tagKey:
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default:
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return fmt.Errorf("unknown log opt '%s' for %s log driver", key, driverName)
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}
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@ -32,16 +32,22 @@ You can set the logging driver for a specific container by using the
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You can use the `--log-opt NAME=VALUE` flag to specify these additional Splunk
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logging driver options:
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- `splunk-token` required, Splunk HTTP Event Collector token
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- `splunk-url` required, path to your Splunk Enterprise or Splunk Cloud instance
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(including port and schema used by HTTP Event Collector) `https://your_splunk_instance:8088`
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- `splunk-source` optional, event source
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- `splunk-sourcetype` optional, event source type
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- `splunk-index` optional, event index
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- `splunk-capath` optional, path to root certificate
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- `splunk-caname` optional, name to use for validating server
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certificate; by default the hostname of the `splunk-url` will be used
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- `splunk-insecureskipverify` optional, ignore server certificate validation
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| Option | Required | Description |
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|-----------------------------|----------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| `splunk-token` | required | Splunk HTTP Event Collector token. |
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| `splunk-url` | required | Path to your Splunk Enterprise or Splunk Cloud instance (including port and schema used by HTTP Event Collector) `https://your_splunk_instance:8088`. |
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| `splunk-source` | optional | Event source. |
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| `splunk-sourcetype` | optional | Event source type. |
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| `splunk-index` | optional | Event index. |
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| `splunk-capath` | optional | Path to root certificate. |
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| `splunk-caname` | optional | Name to use for validating server certificate; by default the hostname of the `splunk-url` will be used. |
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| `splunk-insecureskipverify` | optional | Ignore server certificate validation. |
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| `tag` | optional | Specify tag for message, which interpret some markup. Default value is `{{.ID}}` (12 characters of the container ID). Refer to the [log tag option documentation](log_tags.md) for customizing the log tag format. |
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| `labels` | optional | Comma-separated list of keys of labels, which should be included in message, if these labels are specified for container. |
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| `env` | optional | Comma-separated list of keys of environment variables, which should be included in message, if these variables are specified for container. |
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If there is collision between `label` and `env` keys, the value of the `env` takes precedence.
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Both options add additional fields to the attributes of a logging message.
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Below is an example of the logging option specified for the Splunk Enterprise
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instance. The instance is installed locally on the same machine on which the
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@ -51,6 +57,12 @@ The `SplunkServerDefaultCert` is automatically generated by Splunk certificates.
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docker run --log-driver=splunk \
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--log-opt splunk-token=176FCEBF-4CF5-4EDF-91BC-703796522D20 \
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--log-opt splunk-url=https://localhost:8088 \
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--log-opt splunk-capath=/opt/splunk/etc/auth/cacert.pem \
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--log-opt splunk-url=https://splunkhost:8088 \
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--log-opt splunk-capath=/path/to/cert/cacert.pem \
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--log-opt splunk-caname=SplunkServerDefaultCert
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--log-opt tag="{{.Name}}/{{.FullID}}"
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--log-opt labels=location
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--log-opt env=TEST
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--env "TEST=false"
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--label location=west
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your/application
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