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8c15192433
First PR to address #14244. Adds common potential reasons as to why a direct connection to the workspace agent couldn't be established to `coder ping`: - If the Coder deployment administrator has blocked direction connections (`CODER_BLOCK_DIRECT`). - If the client has no STUN servers within it's DERP map. - If the client or agent appears to be behind a hard NAT, as per Tailscale `netInfo.MappingVariesByDestIP` Also adds a warning if the client or agent has a network interface below the 'safe' MTU for tailnet. This warning is always displayed at the end of a `coder ping`.
78 lines
2.1 KiB
Go
78 lines
2.1 KiB
Go
package agent
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import (
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"net/http"
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"sync"
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"time"
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"github.com/go-chi/chi/v5"
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"github.com/coder/coder/v2/coderd/httpapi"
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"github.com/coder/coder/v2/codersdk"
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)
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func (a *agent) apiHandler() http.Handler {
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r := chi.NewRouter()
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r.Get("/", func(rw http.ResponseWriter, r *http.Request) {
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httpapi.Write(r.Context(), rw, http.StatusOK, codersdk.Response{
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Message: "Hello from the agent!",
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})
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})
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// Make a copy to ensure the map is not modified after the handler is
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// created.
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cpy := make(map[int]string)
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for k, b := range a.ignorePorts {
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cpy[k] = b
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}
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cacheDuration := 1 * time.Second
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if a.portCacheDuration > 0 {
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cacheDuration = a.portCacheDuration
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}
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lp := &listeningPortsHandler{
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ignorePorts: cpy,
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cacheDuration: cacheDuration,
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}
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promHandler := PrometheusMetricsHandler(a.prometheusRegistry, a.logger)
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r.Get("/api/v0/listening-ports", lp.handler)
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r.Get("/api/v0/netcheck", a.HandleNetcheck)
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r.Get("/debug/logs", a.HandleHTTPDebugLogs)
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r.Get("/debug/magicsock", a.HandleHTTPDebugMagicsock)
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r.Get("/debug/magicsock/debug-logging/{state}", a.HandleHTTPMagicsockDebugLoggingState)
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r.Get("/debug/manifest", a.HandleHTTPDebugManifest)
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r.Get("/debug/prometheus", promHandler.ServeHTTP)
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return r
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}
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type listeningPortsHandler struct {
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ignorePorts map[int]string
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cacheDuration time.Duration
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//nolint: unused // used on some but not all platforms
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mut sync.Mutex
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//nolint: unused // used on some but not all platforms
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ports []codersdk.WorkspaceAgentListeningPort
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//nolint: unused // used on some but not all platforms
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mtime time.Time
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}
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// handler returns a list of listening ports. This is tested by coderd's
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// TestWorkspaceAgentListeningPorts test.
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func (lp *listeningPortsHandler) handler(rw http.ResponseWriter, r *http.Request) {
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ports, err := lp.getListeningPorts()
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if err != nil {
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httpapi.Write(r.Context(), rw, http.StatusInternalServerError, codersdk.Response{
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Message: "Could not scan for listening ports.",
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Detail: err.Error(),
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})
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return
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}
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httpapi.Write(r.Context(), rw, http.StatusOK, codersdk.WorkspaceAgentListeningPortsResponse{
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Ports: ports,
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})
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}
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