141 lines
3.8 KiB
Go
141 lines
3.8 KiB
Go
package shared
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import (
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"strconv"
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"github.com/containers/libpod/libpod"
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"github.com/cri-o/ocicni/pkg/ocicni"
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"github.com/docker/go-connections/nat"
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"github.com/pkg/errors"
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)
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const (
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stopped = "Stopped"
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running = "Running"
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paused = "Paused"
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exited = "Exited"
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errored = "Error"
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created = "Created"
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)
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// GetPodStatus determines the status of the pod based on the
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// statuses of the containers in the pod.
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// Returns a string representation of the pod status
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func GetPodStatus(pod *libpod.Pod) (string, error) {
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ctrStatuses, err := pod.Status()
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if err != nil {
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return errored, err
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}
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return CreatePodStatusResults(ctrStatuses)
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}
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func CreatePodStatusResults(ctrStatuses map[string]libpod.ContainerStatus) (string, error) {
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ctrNum := len(ctrStatuses)
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if ctrNum == 0 {
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return created, nil
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}
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statuses := map[string]int{
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stopped: 0,
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running: 0,
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paused: 0,
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created: 0,
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errored: 0,
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}
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for _, ctrStatus := range ctrStatuses {
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switch ctrStatus {
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case libpod.ContainerStateExited:
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fallthrough
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case libpod.ContainerStateStopped:
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statuses[stopped]++
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case libpod.ContainerStateRunning:
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statuses[running]++
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case libpod.ContainerStatePaused:
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statuses[paused]++
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case libpod.ContainerStateCreated, libpod.ContainerStateConfigured:
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statuses[created]++
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default:
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statuses[errored]++
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}
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}
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if statuses[running] > 0 {
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return running, nil
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} else if statuses[paused] == ctrNum {
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return paused, nil
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} else if statuses[stopped] == ctrNum {
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return exited, nil
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} else if statuses[stopped] > 0 {
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return stopped, nil
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} else if statuses[errored] > 0 {
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return errored, nil
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}
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return created, nil
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}
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// GetNamespaceOptions transforms a slice of kernel namespaces
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// into a slice of pod create options. Currently, not all
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// kernel namespaces are supported, and they will be returned in an error
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func GetNamespaceOptions(ns []string) ([]libpod.PodCreateOption, error) {
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var options []libpod.PodCreateOption
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var erroredOptions []libpod.PodCreateOption
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for _, toShare := range ns {
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switch toShare {
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case "cgroup":
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options = append(options, libpod.WithPodCgroups())
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case "net":
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options = append(options, libpod.WithPodNet())
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case "mnt":
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return erroredOptions, errors.Errorf("Mount sharing functionality not supported on pod level")
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case "pid":
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options = append(options, libpod.WithPodPID())
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case "user":
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return erroredOptions, errors.Errorf("User sharing functionality not supported on pod level")
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case "ipc":
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options = append(options, libpod.WithPodIPC())
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case "uts":
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options = append(options, libpod.WithPodUTS())
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case "":
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case "none":
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return erroredOptions, nil
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default:
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return erroredOptions, errors.Errorf("Invalid kernel namespace to share: %s. Options are: net, pid, ipc, uts or none", toShare)
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}
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}
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return options, nil
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}
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// CreatePortBindings iterates ports mappings and exposed ports into a format CNI understands
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func CreatePortBindings(ports []string) ([]ocicni.PortMapping, error) {
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var portBindings []ocicni.PortMapping
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// The conversion from []string to natBindings is temporary while mheon reworks the port
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// deduplication code. Eventually that step will not be required.
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_, natBindings, err := nat.ParsePortSpecs(ports)
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if err != nil {
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return nil, err
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}
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for containerPb, hostPb := range natBindings {
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var pm ocicni.PortMapping
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pm.ContainerPort = int32(containerPb.Int())
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for _, i := range hostPb {
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var hostPort int
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var err error
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pm.HostIP = i.HostIP
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if i.HostPort == "" {
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hostPort = containerPb.Int()
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} else {
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hostPort, err = strconv.Atoi(i.HostPort)
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if err != nil {
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return nil, errors.Wrapf(err, "unable to convert host port to integer")
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}
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}
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pm.HostPort = int32(hostPort)
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pm.Protocol = containerPb.Proto()
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portBindings = append(portBindings, pm)
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}
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}
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return portBindings, nil
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}
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var DefaultKernelNamespaces = "cgroup,ipc,net,uts"
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