feat(coderd): update API to allow filtering provisioner daemons by tags (#15448)

This PR provides new parameters to an endpoint that will be necessary
for #15048

enterprise/coderd/provisionerdaemons.go

@@ -56,13 +56,33 @@ func (api *API) provisionerDaemonsEnabledMW(next http.Handler) http.Handler {
 // @Produce json
 // @Tags Enterprise
 // @Param organization path string true "Organization ID" format(uuid)
+// @Param tags query object false "Provisioner tags to filter by (JSON of the form {'tag1':'value1','tag2':'value2'})"
 // @Success 200 {array} codersdk.ProvisionerDaemon
 // @Router /organizations/{organization}/provisionerdaemons [get]
 func (api *API) provisionerDaemons(rw http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
-	org := httpmw.OrganizationParam(r)
+	var (
+		ctx      = r.Context()
+		org      = httpmw.OrganizationParam(r)
+		tagParam = r.URL.Query().Get("tags")
+		tags     = database.StringMap{}
+		err      = tags.Scan([]byte(tagParam))
+	)
 
-	daemons, err := api.Database.GetProvisionerDaemonsByOrganization(ctx, org.ID)
+	if tagParam != "" && err != nil {
+		httpapi.Write(ctx, rw, http.StatusBadRequest, codersdk.Response{
+			Message: "Invalid tags query parameter",
+			Detail:  err.Error(),
+		})
+		return
+	}
+
+	daemons, err := api.Database.GetProvisionerDaemonsByOrganization(
+		ctx,
+		database.GetProvisionerDaemonsByOrganizationParams{
+			OrganizationID: org.ID,
+			WantTags:       tags,
+		},
+	)
 	if err != nil {
 		httpapi.Write(ctx, rw, http.StatusInternalServerError, codersdk.Response{
 			Message: "Internal error fetching provisioner daemons.",