refactor logging options

pkg/simple/client/elasticsearch/options.go

@@ -0,0 +1,63 @@
+package esclient
+
+import (
+	"github.com/spf13/pflag"
+	"kubesphere.io/kubesphere/pkg/utils/reflectutils"
+)
+
+type ElasticSearchOptions struct {
+	Host           string `json:"host,omitempty" yaml:"host,omitempty"`
+	LogstashFormat bool   `json:"logstashFormat,omitempty" yaml:"logstashFormat,omitempty"`
+	Index          string `json:",omitempty" yaml:",omitempty"`
+	LogstashPrefix string `json:"logstashPrefix,omitempty" yaml:"logstashPrefix,omitempty"`
+	Match          string `json:",omitempty" yaml:",omitempty"`
+	Version        string `json:",omitempty" yaml:",omitempty"`
+}
+
+func NewElasticSearchOptions() *ElasticSearchOptions {
+	return &ElasticSearchOptions{
+		Host:           "",
+		LogstashFormat: false,
+		Index:          "fluentbit",
+		LogstashPrefix: "",
+		Match:          "kube.*",
+		Version:        "6",
+	}
+}
+
+func (s *ElasticSearchOptions) ApplyTo(options *ElasticSearchOptions) {
+	if s.Host != "" {
+		reflectutils.Override(options, s)
+	}
+}
+
+func (s *ElasticSearchOptions) Validate() []error {
+	errs := []error{}
+
+	return errs
+}
+
+func (s *ElasticSearchOptions) AddFlags(fs *pflag.FlagSet) {
+	fs.StringVar(&s.Host, "elasticsearch-host", s.Host, ""+
+		"ElasticSearch logging service host. KubeSphere is using elastic as log store, "+
+		"if this filed left blank, KubeSphere will use kubernetes builtin log API instead, and"+
+		" the following elastic search options will be ignored.")
+
+	fs.BoolVar(&s.LogstashFormat, "logstash-format", s.LogstashFormat, ""+
+		"Whether to toggle logstash format compatibility.")
+
+	fs.StringVar(&s.LogstashPrefix, "logstash-prefix", s.LogstashPrefix, ""+
+		"If logstash-format is enabled, the Index name is composed using a prefix and the date,"+
+		"e.g: If logstash-prefix is equals to 'mydata' your index will become 'mydata-YYYY.MM.DD'."+
+		"The last string appended belongs to the date when the data is being generated.")
+
+	fs.StringVar(&s.Match, "elasticsearch-match", s.Match, ""+
+		"The regex match for index, eg. kube.*")
+
+	fs.StringVar(&s.Index, "elasticsearch-index", s.Index, ""+
+		"Index name.")
+
+	fs.StringVar(&s.Version, "elasticsearch-version", s.Version, ""+
+		"ElasticSearch major version, e.g. 5/6/7, if left blank, will detect automatically."+
+		"Currently, minimum supported version is 5.x")
+}