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https://github.com/VictoriaMetrics/VictoriaMetrics.git
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c06e7a142c
Cache sanitized label names and return them next time. This reduces the number of allocations and speeds up the SanitizeLabelName() function for common case when the number of unique label names is smaller than 100k
61 lines
1.6 KiB
Go
61 lines
1.6 KiB
Go
package dockerswarm
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import (
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"encoding/json"
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"fmt"
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"strconv"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/promscrape/discoveryutils"
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)
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// See https://docs.docker.com/engine/api/v1.40/#tag/Network
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type network struct {
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ID string
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Name string
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Scope string
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Internal bool
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Ingress bool
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Labels map[string]string
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}
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func getNetworksLabelsByNetworkID(cfg *apiConfig) (map[string]map[string]string, error) {
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networks, err := getNetworks(cfg)
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if err != nil {
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return nil, err
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}
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return getNetworkLabelsByNetworkID(networks), nil
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}
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func getNetworks(cfg *apiConfig) ([]network, error) {
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resp, err := cfg.getAPIResponse("/networks")
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if err != nil {
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return nil, fmt.Errorf("cannot query dockerswarm api for networks: %w", err)
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}
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return parseNetworks(resp)
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}
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func parseNetworks(data []byte) ([]network, error) {
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var networks []network
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if err := json.Unmarshal(data, &networks); err != nil {
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return nil, fmt.Errorf("cannot parse networks: %w", err)
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}
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return networks, nil
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}
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func getNetworkLabelsByNetworkID(networks []network) map[string]map[string]string {
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ms := make(map[string]map[string]string)
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for _, network := range networks {
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m := map[string]string{
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"__meta_dockerswarm_network_id": network.ID,
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"__meta_dockerswarm_network_name": network.Name,
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"__meta_dockerswarm_network_internal": strconv.FormatBool(network.Internal),
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"__meta_dockerswarm_network_ingress": strconv.FormatBool(network.Ingress),
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"__meta_dockerswarm_network_scope": network.Scope,
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}
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for k, v := range network.Labels {
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m[discoveryutils.SanitizeLabelName("__meta_dockerswarm_network_label_"+k)] = v
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}
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ms[network.ID] = m
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}
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return ms
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}
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