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ebcb7d6b40
Use strongly typed errors to set HTTP status codes. Error interfaces are defined in the api/errors package and errors returned from controllers are checked against these interfaces. Errors can be wraeped in a pkg/errors.Causer, as long as somewhere in the line of causes one of the interfaces is implemented. The special error interfaces take precedence over Causer, meaning if both Causer and one of the new error interfaces are implemented, the Causer is not traversed. Signed-off-by: Brian Goff <cpuguy83@gmail.com>
79 lines
2.2 KiB
Go
79 lines
2.2 KiB
Go
package runconfig
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import (
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"encoding/json"
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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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decoder := json.NewDecoder(src)
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var w ContainerConfigWrapper
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if err := decoder.Decode(&w); err != nil {
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return nil, err
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}
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hc := w.getHostConfig()
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return hc, 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 {
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if hc.NetworkMode == container.NetworkMode("") {
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hc.NetworkMode = container.NetworkMode("default")
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}
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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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// We may not be passed a host config, such as in the case of docker commit
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if hc == nil {
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return nil
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}
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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 == true) {
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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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