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Segment labels: Docker

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This commit is contained in:
Ludovic Fernandez 2018-03-23 13:30:03 +01:00 • committed by Traefiker Bot
parent c762b9bb2e
commit 4802484729
28 changed files with 4095 additions and 2464 deletions
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77
provider/label/label.go
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@ -36,13 +36,6 @@ const (
)
var (
// ServicesPropertiesRegexp used to extract the name of the service and the name of the property for this service
// All properties are under the format traefik.<servicename>.frontend.*= except the port/portIndex/weight/protocol/backend directly after traefik.<servicename>.
ServicesPropertiesRegexp = regexp.MustCompile(`^traefik\.(?P<service_name>.+?)\.(?P<property_name>port|portIndex|weight|protocol|backend|frontend\.(.+))$`)
// PortRegexp used to extract the port label of the service
PortRegexp = regexp.MustCompile(`^traefik\.(?P<service_name>.+?)\.port$`)
// RegexpBaseFrontendErrorPage used to extract error pages from service's label
RegexpBaseFrontendErrorPage = regexp.MustCompile(`^frontend\.errors\.(?P<name>[^ .]+)\.(?P<field>[^ .]+)$`)
@ -56,15 +49,6 @@ var (
RegexpFrontendRateLimit = regexp.MustCompile(`^traefik\.frontend\.rateLimit\.rateSet\.(?P<name>[^ .]+)\.(?P<field>[^ .]+)$`)
)
// ServicePropertyValues is a map of services properties
// an example value is: weight=42
type ServicePropertyValues map[string]string
// ServiceProperties is a map of service properties per service,
// which we can get with label[serviceName][propertyName].
// It yields a property value.
type ServiceProperties map[string]ServicePropertyValues
// GetStringValue get string value associated to a label
func GetStringValue(labels map[string]string, labelName string, defaultValue string) string {
if value, ok := labels[labelName]; ok && len(value) > 0 {
@ -245,56 +229,6 @@ func HasPrefixP(labels *map[string]string, prefix string) bool {
return HasPrefix(*labels, prefix)
}
// FindServiceSubmatch split service label
func FindServiceSubmatch(name string) []string {
matches := ServicesPropertiesRegexp.FindStringSubmatch(name)
if matches == nil ||
strings.HasPrefix(name, TraefikFrontend+".") ||
strings.HasPrefix(name, TraefikBackend+".") {
return nil
}
return matches
}
// ExtractServiceProperties Extract services labels
func ExtractServiceProperties(labels map[string]string) ServiceProperties {
v := make(ServiceProperties)
for name, value := range labels {
matches := FindServiceSubmatch(name)
if matches == nil {
continue
}
var serviceName string
var propertyName string
for i, name := range ServicesPropertiesRegexp.SubexpNames() {
if i != 0 {
if name == "service_name" {
serviceName = matches[i]
} else if name == "property_name" {
propertyName = matches[i]
}
}
}
if _, ok := v[serviceName]; !ok {
v[serviceName] = make(ServicePropertyValues)
}
v[serviceName][propertyName] = value
}
return v
}
// ExtractServicePropertiesP Extract services labels
func ExtractServicePropertiesP(labels *map[string]string) ServiceProperties {
if labels == nil {
return make(ServiceProperties)
}
return ExtractServiceProperties(*labels)
}
// ParseErrorPages parse error pages to create ErrorPage struct
func ParseErrorPages(labels map[string]string, labelPrefix string, labelRegex *regexp.Regexp) map[string]*types.ErrorPage {
var errorPages map[string]*types.ErrorPage
@ -420,14 +354,3 @@ func SplitAndTrimString(base string, sep string) []string {
return trimmedStrings
}
// GetServiceLabel converts a key value of Label*, given a serviceName,
// into a pattern <LabelPrefix>.<serviceName>.<property>
// i.e. For LabelFrontendRule and serviceName=app it will return "traefik.app.frontend.rule"
func GetServiceLabel(labelName, serviceName string) string {
if len(serviceName) > 0 {
property := strings.TrimPrefix(labelName, Prefix)
return Prefix + serviceName + "." + property
}
return labelName
}