Wire network interface into libpod

Make use of the new network interface in libpod.

This commit contains several breaking changes:
- podman network create only outputs the new network name and not file
  path.
- podman network ls shows the network driver instead of the cni version
  and plugins.
- podman network inspect outputs the new network struct and not the cni
  conflist.
- The bindings and libpod api endpoints have been changed to use the new
  network structure.

The container network status is stored in a new field in the state. The
status should be received with the new `c.getNetworkStatus`. This will
migrate the old status to the new format. Therefore old containers should
contine to work correctly in all cases even when network connect/
disconnect is used.

New features:
- podman network reload keeps the ip and mac for more than one network.
- podman container restore keeps the ip and mac for more than one
  network.
- The network create compat endpoint can now use more than one ipam
  config.

The man pages and the swagger doc are updated to reflect the latest
changes.

Signed-off-by: Paul Holzinger <pholzing@redhat.com>

1 files changed, 0 insertions, 211 deletions

diff --git a/libpod/network/files.go b/libpod/network/files.go
deleted file mode 100644
index d876113f9..000000000
--- a/libpod/network/files.go
+++ /dev/null
@@ -1,211 +0,0 @@
-package network
-
-import (
-	"encoding/json"
-	"fmt"
-	"io/ioutil"
-	"sort"
-	"strings"
-
-	"github.com/containernetworking/cni/libcni"
-	"github.com/containernetworking/plugins/plugins/ipam/host-local/backend/allocator"
-	"github.com/containers/common/pkg/config"
-	"github.com/containers/podman/v3/libpod/define"
-	"github.com/containers/podman/v3/pkg/network"
-	"github.com/pkg/errors"
-	"github.com/sirupsen/logrus"
-)
-
-// ErrNoSuchNetworkInterface indicates that no network interface exists
-var ErrNoSuchNetworkInterface = errors.New("unable to find interface name for network")
-
-// GetCNIConfDir get CNI configuration directory
-func GetCNIConfDir(configArg *config.Config) string {
-	if len(configArg.Network.NetworkConfigDir) < 1 {
-		dc, err := config.DefaultConfig()
-		if err != nil {
-			// Fallback to hard-coded dir
-			return CNIConfigDir
-		}
-		return dc.Network.NetworkConfigDir
-	}
-	return configArg.Network.NetworkConfigDir
-}
-
-// LoadCNIConfsFromDir loads all the CNI configurations from a dir
-func LoadCNIConfsFromDir(dir string) ([]*libcni.NetworkConfigList, error) {
-	files, err := libcni.ConfFiles(dir, []string{".conflist"})
-	if err != nil {
-		return nil, err
-	}
-	sort.Strings(files)
-
-	configs := make([]*libcni.NetworkConfigList, 0, len(files))
-	for _, confFile := range files {
-		conf, err := libcni.ConfListFromFile(confFile)
-		if err != nil {
-			return nil, errors.Wrapf(err, "in %s", confFile)
-		}
-		configs = append(configs, conf)
-	}
-	return configs, nil
-}
-
-// GetCNIConfigPathByNameOrID finds a CNI network by name and
-// returns its configuration file path
-func GetCNIConfigPathByNameOrID(config *config.Config, name string) (string, error) {
-	files, err := libcni.ConfFiles(GetCNIConfDir(config), []string{".conflist"})
-	if err != nil {
-		return "", err
-	}
-	idMatch := 0
-	file := ""
-	for _, confFile := range files {
-		conf, err := libcni.ConfListFromFile(confFile)
-		if err != nil {
-			return "", errors.Wrapf(err, "in %s", confFile)
-		}
-		if conf.Name == name {
-			return confFile, nil
-		}
-		if strings.HasPrefix(network.GetNetworkID(conf.Name), name) {
-			idMatch++
-			file = confFile
-		}
-	}
-	if idMatch == 1 {
-		return file, nil
-	}
-	if idMatch > 1 {
-		return "", errors.Errorf("more than one result for network ID %s", name)
-	}
-	return "", errors.Wrap(define.ErrNoSuchNetwork, fmt.Sprintf("unable to find network configuration for %s", name))
-}
-
-// ReadRawCNIConfByNameOrID reads the raw CNI configuration for a CNI
-// network by name
-func ReadRawCNIConfByNameOrID(config *config.Config, name string) ([]byte, error) {
-	confFile, err := GetCNIConfigPathByNameOrID(config, name)
-	if err != nil {
-		return nil, err
-	}
-	b, err := ioutil.ReadFile(confFile)
-	return b, err
-}
-
-// GetNetworkLabels returns a list of labels as a string
-func GetNetworkLabels(list *libcni.NetworkConfigList) NcLabels {
-	cniJSON := make(map[string]interface{})
-	err := json.Unmarshal(list.Bytes, &cniJSON)
-	if err != nil {
-		logrus.Errorf("failed to unmarshal network config %v %v", cniJSON["name"], err)
-		return nil
-	}
-	if args, ok := cniJSON["args"]; ok {
-		if key, ok := args.(map[string]interface{}); ok {
-			if labels, ok := key[PodmanLabelKey]; ok {
-				if labels, ok := labels.(map[string]interface{}); ok {
-					result := make(NcLabels, len(labels))
-					for k, v := range labels {
-						if v, ok := v.(string); ok {
-							result[k] = v
-						} else {
-							logrus.Errorf("network config %v invalid label value type %T should be string", cniJSON["name"], labels)
-						}
-					}
-					return result
-				}
-				logrus.Errorf("network config %v invalid label type %T should be map[string]string", cniJSON["name"], labels)
-			}
-		}
-	}
-	return nil
-}
-
-// GetNetworksFromFilesystem gets all the networks from the cni configuration
-// files
-func GetNetworksFromFilesystem(config *config.Config) ([]*allocator.Net, error) {
-	var cniNetworks []*allocator.Net
-
-	networks, err := LoadCNIConfsFromDir(GetCNIConfDir(config))
-	if err != nil {
-		return nil, err
-	}
-	for _, n := range networks {
-		for _, cniplugin := range n.Plugins {
-			if cniplugin.Network.Type == "bridge" {
-				ipamConf := allocator.Net{}
-				if err := json.Unmarshal(cniplugin.Bytes, &ipamConf); err != nil {
-					return nil, err
-				}
-				cniNetworks = append(cniNetworks, &ipamConf)
-				break
-			}
-		}
-	}
-	return cniNetworks, nil
-}
-
-// GetNetworkNamesFromFileSystem gets all the names from the cni network
-// configuration files
-func GetNetworkNamesFromFileSystem(config *config.Config) ([]string, error) {
-	networks, err := LoadCNIConfsFromDir(GetCNIConfDir(config))
-	if err != nil {
-		return nil, err
-	}
-	networkNames := []string{}
-	for _, n := range networks {
-		networkNames = append(networkNames, n.Name)
-	}
-	return networkNames, nil
-}
-
-// GetInterfaceNameFromConfig returns the interface name for the bridge plugin
-func GetInterfaceNameFromConfig(path string) (string, error) {
-	var name string
-	conf, err := libcni.ConfListFromFile(path)
-	if err != nil {
-		return "", err
-	}
-	for _, cniplugin := range conf.Plugins {
-		if cniplugin.Network.Type == "bridge" {
-			plugin := make(map[string]interface{})
-			if err := json.Unmarshal(cniplugin.Bytes, &plugin); err != nil {
-				return "", err
-			}
-			name = plugin["bridge"].(string)
-			break
-		}
-	}
-	if len(name) == 0 {
-		return "", ErrNoSuchNetworkInterface
-	}
-	return name, nil
-}
-
-// GetBridgeNamesFromFileSystem is a convenience function to get all the bridge
-// names from the configured networks
-func GetBridgeNamesFromFileSystem(config *config.Config) ([]string, error) {
-	networks, err := LoadCNIConfsFromDir(GetCNIConfDir(config))
-	if err != nil {
-		return nil, err
-	}
-
-	bridgeNames := []string{}
-	for _, n := range networks {
-		var name string
-		// iterate network conflists
-		for _, cniplugin := range n.Plugins {
-			// iterate plugins
-			if cniplugin.Network.Type == "bridge" {
-				plugin := make(map[string]interface{})
-				if err := json.Unmarshal(cniplugin.Bytes, &plugin); err != nil {
-					continue
-				}
-				name = plugin["bridge"].(string)
-			}
-		}
-		bridgeNames = append(bridgeNames, name)
-	}
-	return bridgeNames, nil
-}