portainer/api/http/handler/endpointproxy/proxy_kubernetes.go

67 lines
2.2 KiB
Go

package endpointproxy
import (
"errors"
"fmt"
"net/http"
"strings"
portainer "github.com/portainer/portainer/api"
httperror "github.com/portainer/portainer/pkg/libhttp/error"
"github.com/portainer/portainer/pkg/libhttp/request"
)
func (handler *Handler) proxyRequestsToKubernetesAPI(w http.ResponseWriter, r *http.Request) *httperror.HandlerError {
endpointID, err := request.RetrieveNumericRouteVariableValue(r, "id")
if err != nil {
return httperror.BadRequest("Invalid environment identifier route variable", err)
}
endpoint, err := handler.DataStore.Endpoint().Endpoint(portainer.EndpointID(endpointID))
if handler.DataStore.IsErrObjectNotFound(err) {
return httperror.NotFound("Unable to find an environment with the specified identifier inside the database", err)
} else if err != nil {
return httperror.InternalServerError("Unable to find an environment with the specified identifier inside the database", err)
}
err = handler.requestBouncer.AuthorizedEndpointOperation(r, endpoint)
if err != nil {
return httperror.Forbidden("Permission denied to access environment", err)
}
if endpoint.Type == portainer.EdgeAgentOnKubernetesEnvironment {
if endpoint.EdgeID == "" {
return httperror.InternalServerError("No Edge agent registered with the environment", errors.New("No agent available"))
}
_, err := handler.ReverseTunnelService.GetActiveTunnel(endpoint)
if err != nil {
return httperror.InternalServerError("Unable to get the active tunnel", err)
}
}
var proxy http.Handler
proxy = handler.ProxyManager.GetEndpointProxy(endpoint)
if proxy == nil {
proxy, err = handler.ProxyManager.CreateAndRegisterEndpointProxy(endpoint)
if err != nil {
return httperror.InternalServerError("Unable to create proxy", err)
}
}
// For KubernetesLocalEnvironment
requestPrefix := fmt.Sprintf("/%d/kubernetes", endpointID)
if endpoint.Type == portainer.AgentOnKubernetesEnvironment || endpoint.Type == portainer.EdgeAgentOnKubernetesEnvironment {
requestPrefix = fmt.Sprintf("/%d", endpointID)
agentPrefix := fmt.Sprintf("/%d/agent/kubernetes", endpointID)
if strings.HasPrefix(r.URL.Path, agentPrefix) {
requestPrefix = agentPrefix
}
}
http.StripPrefix(requestPrefix, proxy).ServeHTTP(w, r)
return nil
}