package docker import ( "fmt" "net/http" "strconv" "strings" "github.com/containous/traefik/log" "github.com/containous/traefik/provider" "github.com/containous/traefik/provider/label" "github.com/docker/go-connections/nat" ) // Specific functions // Deprecated func (p Provider) getFrontendNameV1(container dockerData, idx int) string { return provider.Normalize(p.getFrontendRuleV1(container) + "-" + strconv.Itoa(idx)) } // GetFrontendRule returns the frontend rule for the specified container, using // it's label. It returns a default one (Host) if the label is not present. // Deprecated func (p Provider) getFrontendRuleV1(container dockerData) string { if value := label.GetStringValue(container.Labels, label.TraefikFrontendRule, ""); len(value) != 0 { return value } if values, err := label.GetStringMultipleStrict(container.Labels, labelDockerComposeProject, labelDockerComposeService); err == nil { return "Host:" + getSubDomain(values[labelDockerComposeService]+"."+values[labelDockerComposeProject]) + "." + p.Domain } if len(p.Domain) > 0 { return "Host:" + getSubDomain(container.ServiceName) + "." + p.Domain } return "" } // Deprecated func getBackendNameV1(container dockerData) string { if value := label.GetStringValue(container.Labels, label.TraefikBackend, ""); len(value) != 0 { return provider.Normalize(value) } if values, err := label.GetStringMultipleStrict(container.Labels, labelDockerComposeProject, labelDockerComposeService); err == nil { return provider.Normalize(values[labelDockerComposeService] + "_" + values[labelDockerComposeProject]) } return provider.Normalize(container.ServiceName) } // Deprecated func getPortV1(container dockerData) string { if value := label.GetStringValue(container.Labels, label.TraefikPort, ""); len(value) != 0 { return value } // See iteration order in https://blog.golang.org/go-maps-in-action var ports []nat.Port for port := range container.NetworkSettings.Ports { ports = append(ports, port) } less := func(i, j nat.Port) bool { return i.Int() < j.Int() } nat.Sort(ports, less) if len(ports) > 0 { min := ports[0] return min.Port() } return "" } // replaced by Stickiness // Deprecated func getStickyV1(container dockerData) bool { if label.Has(container.Labels, label.TraefikBackendLoadBalancerSticky) { log.Warnf("Deprecated configuration found: %s. Please use %s.", label.TraefikBackendLoadBalancerSticky, label.TraefikBackendLoadBalancerStickiness) } return label.GetBoolValue(container.Labels, label.TraefikBackendLoadBalancerSticky, false) } // Deprecated func hasLoadBalancerLabelV1(container dockerData) bool { method := label.Has(container.Labels, label.TraefikBackendLoadBalancerMethod) sticky := label.Has(container.Labels, label.TraefikBackendLoadBalancerSticky) stickiness := label.Has(container.Labels, label.TraefikBackendLoadBalancerStickiness) cookieName := label.Has(container.Labels, label.TraefikBackendLoadBalancerStickinessCookieName) return method || sticky || stickiness || cookieName } // Deprecated func hasMaxConnLabelsV1(container dockerData) bool { mca := label.Has(container.Labels, label.TraefikBackendMaxConnAmount) mcef := label.Has(container.Labels, label.TraefikBackendMaxConnExtractorFunc) return mca && mcef } // Deprecated func hasRedirectV1(container dockerData) bool { return hasLabelV1(label.TraefikFrontendRedirectEntryPoint)(container) || hasLabelV1(label.TraefikFrontendRedirectReplacement)(container) && hasLabelV1(label.TraefikFrontendRedirectRegex)(container) } // Deprecated func hasHeadersV1(container dockerData) bool { for key := range container.Labels { if strings.HasPrefix(key, label.Prefix+"frontend.headers.") { return true } } return false } // Label functions // Deprecated func getFuncStringLabelV1(labelName string, defaultValue string) func(container dockerData) string { return func(container dockerData) string { return label.GetStringValue(container.Labels, labelName, defaultValue) } } // Deprecated func getFuncBoolLabelV1(labelName string, defaultValue bool) func(container dockerData) bool { return func(container dockerData) bool { return label.GetBoolValue(container.Labels, labelName, defaultValue) } } // Deprecated func getFuncSliceStringLabelV1(labelName string) func(container dockerData) []string { return func(container dockerData) []string { return label.GetSliceStringValue(container.Labels, labelName) } } // Deprecated func getFuncIntLabelV1(labelName string, defaultValue int) func(container dockerData) int { return func(container dockerData) int { return label.GetIntValue(container.Labels, labelName, defaultValue) } } // Deprecated func getFuncInt64LabelV1(labelName string, defaultValue int64) func(container dockerData) int64 { return func(container dockerData) int64 { return label.GetInt64Value(container.Labels, labelName, defaultValue) } } // Deprecated func hasFuncV1(labelName string) func(container dockerData) bool { return func(container dockerData) bool { return label.Has(container.Labels, labelName) } } // Deprecated func hasLabelV1(label string) func(container dockerData) bool { return func(container dockerData) bool { lbl, err := getLabelV1(container, label) return err == nil && len(lbl) > 0 } } // Deprecated func getLabelV1(container dockerData, label string) (string, error) { if value, ok := container.Labels[label]; ok { return value, nil } return "", fmt.Errorf("label not found: %s", label) } // Deprecated func getFuncMapLabelV1(labelName string) func(container dockerData) map[string]string { return func(container dockerData) map[string]string { return parseMapLabelV1(container, labelName) } } // Deprecated func parseMapLabelV1(container dockerData, labelName string) map[string]string { if parts, err := getLabelV1(container, labelName); err == nil { if len(parts) == 0 { log.Errorf("Could not load %q", labelName) return nil } values := make(map[string]string) for _, headers := range strings.Split(parts, "||") { pair := strings.SplitN(headers, ":", 2) if len(pair) != 2 { log.Warnf("Could not load %q: %v, skipping...", labelName, pair) } else { values[http.CanonicalHeaderKey(strings.TrimSpace(pair[0]))] = strings.TrimSpace(pair[1]) } } if len(values) == 0 { log.Errorf("Could not load %q", labelName) return nil } return values } return nil }