dotcloud/docker

package runconfig // import "github.com/docker/docker/runconfig"

import (
    "strings"

    "github.com/docker/docker/api/types/container"
)

// validateNetContainerMode ensures that the various combinations of requested
// network settings wrt container mode are valid.
func validateNetContainerMode(c *container.Config, hc *container.HostConfig) error {
    parts := strings.Split(string(hc.NetworkMode), ":")
    if parts[0] == "container" {
        if len(parts) < 2 || parts[1] == "" {
            return validationError("Invalid network mode: invalid container format container:<name|id>")
        }
    }

    if hc.NetworkMode.IsContainer() && c.Hostname != "" {
        return ErrConflictNetworkHostname
    }

    if hc.NetworkMode.IsContainer() && len(hc.Links) > 0 {
        return ErrConflictContainerNetworkAndLinks
    }

    if hc.NetworkMode.IsContainer() && len(hc.DNS) > 0 {
        return ErrConflictNetworkAndDNS
    }

    if hc.NetworkMode.IsContainer() && len(hc.ExtraHosts) > 0 {
        return ErrConflictNetworkHosts
    }

    if hc.NetworkMode.IsContainer() && (len(hc.PortBindings) > 0 || hc.PublishAllPorts) {
        return ErrConflictNetworkPublishPorts
    }

    if hc.NetworkMode.IsContainer() && len(c.ExposedPorts) > 0 {
        return ErrConflictNetworkExposePorts
    }
    return nil
}