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104 lines
2.8 KiB
Go
104 lines
2.8 KiB
Go
package dockerapi
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import (
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"encoding/json"
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"net/http"
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config "github.com/yusing/go-proxy/internal/config/types"
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"github.com/yusing/go-proxy/internal/docker"
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"github.com/yusing/go-proxy/internal/gperr"
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)
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// getDockerClients returns a map of docker clients for the current config.
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//
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// Returns a map of docker clients by server name and an error if any.
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//
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// Even if there are errors, the map of docker clients might not be empty.
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func getDockerClients() (map[string]*docker.SharedClient, gperr.Error) {
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cfg := config.GetInstance()
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dockerHosts := cfg.Value().Providers.Docker
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dockerClients := make(map[string]*docker.SharedClient)
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connErrs := gperr.NewBuilder("failed to connect to docker")
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for name, host := range dockerHosts {
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dockerClient, err := docker.ConnectClient(host)
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if err != nil {
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connErrs.Add(err)
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continue
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}
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dockerClients[name] = dockerClient
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}
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for _, agent := range cfg.ListAgents() {
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dockerClient, err := docker.ConnectClient(agent.FakeDockerHost())
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if err != nil {
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connErrs.Add(err)
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continue
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}
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dockerClients[agent.Name()] = dockerClient
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}
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return dockerClients, connErrs.Error()
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}
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// getDockerClientsWithErrHandling returns a map of docker clients for the current config.
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//
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// Returns a map of docker clients by server name and a boolean indicating if http handler should stop/
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func getDockerClientsWithErrHandling(w http.ResponseWriter) (map[string]*docker.SharedClient, bool) {
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dockerClients, err := getDockerClients()
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if err != nil {
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gperr.LogError("failed to get docker clients", err)
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if len(dockerClients) == 0 {
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http.Error(w, "no docker hosts connected successfully", http.StatusInternalServerError)
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return nil, false
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}
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}
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return dockerClients, true
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}
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func getDockerClient(w http.ResponseWriter, server string) (*docker.SharedClient, bool, error) {
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cfg := config.GetInstance()
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var host string
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for name, h := range cfg.Value().Providers.Docker {
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if name == server {
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host = h
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break
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}
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}
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for _, agent := range cfg.ListAgents() {
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if agent.Name() == server {
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host = agent.FakeDockerHost()
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break
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}
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}
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if host == "" {
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return nil, false, nil
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}
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dockerClient, err := docker.ConnectClient(host)
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if err != nil {
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return nil, false, err
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}
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return dockerClient, true, nil
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}
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// closeAllClients closes all docker clients after a delay.
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//
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// This is used to ensure that all docker clients are closed after the http handler returns.
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func closeAllClients(dockerClients map[string]*docker.SharedClient) {
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for _, dockerClient := range dockerClients {
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dockerClient.Close()
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}
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}
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func handleResult[T any](w http.ResponseWriter, errs error, result []T) {
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if errs != nil {
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gperr.LogError("docker errors", errs)
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if len(result) == 0 {
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http.Error(w, "docker errors", http.StatusInternalServerError)
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return
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}
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}
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json.NewEncoder(w).Encode(result)
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}
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