b6d58d749c
Implement similar logic as is used in httputils.ReadJSON(). Before this patch, endpoints using the ContainerDecoder would incorrectly return a 500 (internal server error) status. Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
68 lines
2 KiB
Go
68 lines
2 KiB
Go
package runconfig // import "github.com/docker/docker/runconfig"
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import (
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"io"
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"strings"
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"github.com/docker/docker/api/types/container"
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)
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// DecodeHostConfig creates a HostConfig based on the specified Reader.
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// It assumes the content of the reader will be JSON, and decodes it.
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func decodeHostConfig(src io.Reader) (*container.HostConfig, error) {
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var w ContainerConfigWrapper
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if err := loadJSON(src, &w); err != nil {
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return nil, err
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}
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return w.getHostConfig(), nil
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}
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// SetDefaultNetModeIfBlank changes the NetworkMode in a HostConfig structure
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// to default if it is not populated. This ensures backwards compatibility after
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// the validation of the network mode was moved from the docker CLI to the
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// docker daemon.
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func SetDefaultNetModeIfBlank(hc *container.HostConfig) {
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if hc != nil && hc.NetworkMode == "" {
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hc.NetworkMode = "default"
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}
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}
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// validateNetContainerMode ensures that the various combinations of requested
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// network settings wrt container mode are valid.
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func validateNetContainerMode(c *container.Config, hc *container.HostConfig) error {
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parts := strings.Split(string(hc.NetworkMode), ":")
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if parts[0] == "container" {
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if len(parts) < 2 || parts[1] == "" {
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return validationError("Invalid network mode: invalid container format container:<name|id>")
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}
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}
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if hc.NetworkMode.IsContainer() && c.Hostname != "" {
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return ErrConflictNetworkHostname
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}
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if hc.NetworkMode.IsContainer() && len(hc.Links) > 0 {
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return ErrConflictContainerNetworkAndLinks
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}
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if hc.NetworkMode.IsContainer() && len(hc.DNS) > 0 {
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return ErrConflictNetworkAndDNS
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}
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if hc.NetworkMode.IsContainer() && len(hc.ExtraHosts) > 0 {
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return ErrConflictNetworkHosts
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}
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if (hc.NetworkMode.IsContainer() || hc.NetworkMode.IsHost()) && c.MacAddress != "" {
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return ErrConflictContainerNetworkAndMac
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}
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if hc.NetworkMode.IsContainer() && (len(hc.PortBindings) > 0 || hc.PublishAllPorts) {
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return ErrConflictNetworkPublishPorts
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}
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if hc.NetworkMode.IsContainer() && len(c.ExposedPorts) > 0 {
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return ErrConflictNetworkExposePorts
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}
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return nil
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}
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