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//go:build !windows
// +build !windows
package daemon // import "github.com/docker/docker/daemon"
import (
"github.com/docker/docker/api/types"
"github.com/docker/docker/container"
"github.com/pkg/errors"
)
// Resolve Network SandboxID in case the container reuse another container's network stack
func (daemon *Daemon) getNetworkSandboxID(c *container.Container) (string, error) {
curr := c
for curr.HostConfig.NetworkMode.IsContainer() {
containerID := curr.HostConfig.NetworkMode.ConnectedContainer()
connected, err := daemon.GetContainer(containerID)
if err != nil {
return "", errors.Wrapf(err, "Could not get container for %s", containerID)
}
curr = connected
}
return curr.NetworkSettings.SandboxID, nil
}
func (daemon *Daemon) getNetworkStats(c *container.Container) (map[string]types.NetworkStats, error) {
sandboxID, err := daemon.getNetworkSandboxID(c)
if err != nil {
return nil, err
}
sb, err := daemon.netController.SandboxByID(sandboxID)
if err != nil {
return nil, err
}
lnstats, err := sb.Statistics()
if err != nil {
return nil, err
}
stats := make(map[string]types.NetworkStats)
// Convert libnetwork nw stats into api stats
for ifName, ifStats := range lnstats {
stats[ifName] = types.NetworkStats{
RxBytes: ifStats.RxBytes,
RxPackets: ifStats.RxPackets,
RxErrors: ifStats.RxErrors,
RxDropped: ifStats.RxDropped,
TxBytes: ifStats.TxBytes,
TxPackets: ifStats.TxPackets,
TxErrors: ifStats.TxErrors,
TxDropped: ifStats.TxDropped,
}
}
return stats, nil
}
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