portainer/api/http/proxy/factory/docker.go

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feat(api): rewrite access control management in Docker (#3337) * feat(api): decorate Docker resource creation response with resource control * fix(api): fix a potential resource control conflict between stacks/volumes * feat(api): generate a default private resource control instead of admin only * fix(api): fix default RC value * fix(api): update RC authorizations check to support admin only flag * refactor(api): relocate access control related methods * fix(api): fix a potential conflict when fetching RC from database * refactor(api): refactor access control logic * refactor(api): remove the concept of DecoratedStack * feat(api): automatically remove RC when removing a Docker resource * refactor(api): update filter resource methods documentation * refactor(api): update proxy package structure * refactor(api): renamed proxy/misc package * feat(api): re-introduce ResourceControlDelete operation as admin restricted * refactor(api): relocate default endpoint authorizations * feat(api): migrate RBAC data * feat(app): ResourceControl management refactor * fix(api): fix access control issue on stack deletion and automatically delete RC * fix(api): fix stack filtering * fix(api): fix UpdateResourceControl operation checks * refactor(api): introduce a NewTransport builder method * refactor(api): inject endpoint in Docker transport * refactor(api): introduce Docker client into Docker transport * refactor(api): refactor http/proxy package * feat(api): inspect a Docker resource labels during access control validation * fix(api): only apply automatic resource control creation on success response * fix(api): fix stack access control check * fix(api): use StatusCreated instead of StatusOK for automatic resource control creation * fix(app): resource control fixes * fix(api): fix an issue preventing administrator to inspect a resource with a RC * refactor(api): remove useless error return * refactor(api): document DecorateStacks function * fix(api): fix invalid resource control type for container deletion * feat(api): support Docker system networks * feat(api): update Swagger docs * refactor(api): rename transport variable * refactor(api): rename transport variable * feat(networks): add system tag for system networks * feat(api): add support for resource control labels * feat(api): upgrade to DBVersion 22 * refactor(api): refactor access control management in Docker proxy * refactor(api): re-implement docker proxy taskListOperation * refactor(api): review parameters declaration * refactor(api): remove extra blank line * refactor(api): review method comments * fix(api): fix invalid ServerAddress property and review method visibility * feat(api): update error message * feat(api): update restrictedVolumeBrowserOperation method * refactor(api): refactor method parameters * refactor(api): minor refactor * refactor(api): change Azure transport visibility * refactor(api): update struct documentation * refactor(api): update struct documentation * feat(api): review restrictedResourceOperation method * refactor(api): remove unused authorization methods * feat(api): apply RBAC when enabled on stack operations * fix(api): fix invalid data migration procedure for DBVersion = 22 * fix(app): RC duplicate on private resource * feat(api): change Docker API version logic for libcompose/client factory * fix(api): update access denied error message to be Docker API compliant * fix(api): update volume browsing authorizations data migration * fix(api): fix an issue with access control in multi-node agent Swarm cluster
2019-11-12 23:41:42 +00:00
package factory
import (
"fmt"
"io"
"log"
"net/http"
"net/url"
"strings"
httperror "github.com/portainer/libhttp/error"
portainer "github.com/portainer/portainer/api"
"github.com/portainer/portainer/api/crypto"
"github.com/portainer/portainer/api/http/proxy/factory/docker"
)
func (factory *ProxyFactory) newDockerProxy(endpoint *portainer.Endpoint) (http.Handler, error) {
if strings.HasPrefix(endpoint.URL, "unix://") || strings.HasPrefix(endpoint.URL, "npipe://") {
return factory.newDockerLocalProxy(endpoint)
}
return factory.newDockerHTTPProxy(endpoint)
}
func (factory *ProxyFactory) newDockerLocalProxy(endpoint *portainer.Endpoint) (http.Handler, error) {
endpointURL, err := url.Parse(endpoint.URL)
if err != nil {
return nil, err
}
return factory.newOSBasedLocalProxy(endpointURL.Path, endpoint)
}
func (factory *ProxyFactory) newDockerHTTPProxy(endpoint *portainer.Endpoint) (http.Handler, error) {
if endpoint.Type == portainer.EdgeAgentEnvironment {
tunnel := factory.reverseTunnelService.GetTunnelDetails(endpoint.ID)
endpoint.URL = fmt.Sprintf("http://localhost:%d", tunnel.Port)
}
endpointURL, err := url.Parse(endpoint.URL)
if err != nil {
return nil, err
}
endpointURL.Scheme = "http"
httpTransport := &http.Transport{}
if endpoint.TLSConfig.TLS || endpoint.TLSConfig.TLSSkipVerify {
config, err := crypto.CreateTLSConfigurationFromDisk(endpoint.TLSConfig.TLSCACertPath, endpoint.TLSConfig.TLSCertPath, endpoint.TLSConfig.TLSKeyPath, endpoint.TLSConfig.TLSSkipVerify)
if err != nil {
return nil, err
}
httpTransport.TLSClientConfig = config
endpointURL.Scheme = "https"
}
transportParameters := &docker.TransportParameters{
Endpoint: endpoint,
ResourceControlService: factory.resourceControlService,
UserService: factory.userService,
TeamService: factory.teamService,
TeamMembershipService: factory.teamMembershipService,
RegistryService: factory.registryService,
DockerHubService: factory.dockerHubService,
SettingsService: factory.settingsService,
ReverseTunnelService: factory.reverseTunnelService,
ExtensionService: factory.extensionService,
SignatureService: factory.signatureService,
DockerClientFactory: factory.dockerClientFactory,
}
dockerTransport, err := docker.NewTransport(transportParameters, httpTransport)
if err != nil {
return nil, err
}
proxy := newSingleHostReverseProxyWithHostHeader(endpointURL)
proxy.Transport = dockerTransport
return proxy, nil
}
type dockerLocalProxy struct {
transport *docker.Transport
}
// ServeHTTP is the http.Handler interface implementation
// for a local (Unix socket or Windows named pipe) Docker proxy.
func (proxy *dockerLocalProxy) ServeHTTP(w http.ResponseWriter, r *http.Request) {
// Force URL/domain to http/unixsocket to be able to
// use http.transport RoundTrip to do the requests via the socket
r.URL.Scheme = "http"
r.URL.Host = "unixsocket"
res, err := proxy.transport.ProxyDockerRequest(r)
if err != nil {
code := http.StatusInternalServerError
if res != nil && res.StatusCode != 0 {
code = res.StatusCode
}
httperror.WriteError(w, code, "Unable to proxy the request via the Docker socket", err)
return
}
defer res.Body.Close()
for k, vv := range res.Header {
for _, v := range vv {
w.Header().Add(k, v)
}
}
w.WriteHeader(res.StatusCode)
if _, err := io.Copy(w, res.Body); err != nil {
log.Printf("proxy error: %s\n", err)
}
}