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package abi
import (
"context"
"fmt"
"strings"
"github.com/containernetworking/cni/libcni"
"github.com/containers/podman/v2/libpod/define"
"github.com/containers/podman/v2/libpod/network"
"github.com/containers/podman/v2/pkg/domain/entities"
"github.com/containers/podman/v2/pkg/util"
"github.com/pkg/errors"
)
func (ic *ContainerEngine) NetworkList(ctx context.Context, options entities.NetworkListOptions) ([]*entities.NetworkListReport, error) {
var reports []*entities.NetworkListReport
config, err := ic.Libpod.GetConfig()
if err != nil {
return nil, err
}
networks, err := network.LoadCNIConfsFromDir(network.GetCNIConfDir(config))
if err != nil {
return nil, err
}
var tokens []string
// tokenize the networkListOptions.Filter in key=value.
if len(options.Filter) > 0 {
tokens = strings.Split(options.Filter, "=")
if len(tokens) != 2 {
return nil, fmt.Errorf("invalid filter syntax : %s", options.Filter)
}
}
for _, n := range networks {
if ifPassesFilterTest(n, tokens) {
reports = append(reports, &entities.NetworkListReport{NetworkConfigList: n})
}
}
return reports, nil
}
func (ic *ContainerEngine) NetworkInspect(ctx context.Context, namesOrIds []string, options entities.InspectOptions) ([]entities.NetworkInspectReport, []error, error) {
config, err := ic.Libpod.GetConfig()
if err != nil {
return nil, nil, err
}
var errs []error
rawCNINetworks := make([]entities.NetworkInspectReport, 0, len(namesOrIds))
for _, name := range namesOrIds {
rawList, err := network.InspectNetwork(config, name)
if err != nil {
if errors.Cause(err) == define.ErrNoSuchNetwork {
errs = append(errs, errors.Errorf("no such network %s", name))
continue
} else {
return nil, nil, errors.Wrapf(err, "error inspecting network %s", name)
}
}
rawCNINetworks = append(rawCNINetworks, rawList)
}
return rawCNINetworks, errs, nil
}
func (ic *ContainerEngine) NetworkRm(ctx context.Context, namesOrIds []string, options entities.NetworkRmOptions) ([]*entities.NetworkRmReport, error) {
reports := []*entities.NetworkRmReport{}
config, err := ic.Libpod.GetConfig()
if err != nil {
return nil, err
}
for _, name := range namesOrIds {
report := entities.NetworkRmReport{Name: name}
containers, err := ic.Libpod.GetAllContainers()
if err != nil {
return reports, err
}
// We need to iterate containers looking to see if they belong to the given network
for _, c := range containers {
if util.StringInSlice(name, c.Config().Networks) {
// if user passes force, we nuke containers and pods
if !options.Force {
// Without the force option, we return an error
return reports, errors.Wrapf(define.ErrNetworkInUse, "%q has associated containers with it. Use -f to forcibly delete containers and pods", name)
}
if c.IsInfra() {
// if we have a infra container we need to remove the pod
pod, err := ic.Libpod.GetPod(c.PodID())
if err != nil {
return reports, err
}
if err := ic.Libpod.RemovePod(ctx, pod, true, true); err != nil {
return reports, err
}
} else if err := ic.Libpod.RemoveContainer(ctx, c, true, true); err != nil && errors.Cause(err) != define.ErrNoSuchCtr {
return reports, err
}
}
}
if err := network.RemoveNetwork(config, name); err != nil {
report.Err = err
}
reports = append(reports, &report)
}
return reports, nil
}
func (ic *ContainerEngine) NetworkCreate(ctx context.Context, name string, options entities.NetworkCreateOptions) (*entities.NetworkCreateReport, error) {
runtimeConfig, err := ic.Libpod.GetConfig()
if err != nil {
return nil, err
}
return network.Create(name, options, runtimeConfig)
}
func ifPassesFilterTest(netconf *libcni.NetworkConfigList, filter []string) bool {
result := false
if len(filter) == 0 {
// No filter, so pass
return true
}
switch strings.ToLower(filter[0]) {
case "name":
if filter[1] == netconf.Name {
result = true
}
case "plugin":
plugins := network.GetCNIPlugins(netconf)
if strings.Contains(plugins, filter[1]) {
result = true
}
default:
result = false
}
return result
}
// NetworkDisconnect removes a container from a given network
func (ic *ContainerEngine) NetworkDisconnect(ctx context.Context, networkname string, options entities.NetworkDisconnectOptions) error {
return ic.Libpod.DisconnectContainerFromNetwork(options.Container, networkname, options.Force)
}
func (ic *ContainerEngine) NetworkConnect(ctx context.Context, networkname string, options entities.NetworkConnectOptions) error {
return ic.Libpod.ConnectContainerToNetwork(options.Container, networkname, options.Aliases)
}
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