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package define
import (
"time"
"github.com/pkg/errors"
)
// ContainerStatus represents the current state of a container
type ContainerStatus int
const (
// ContainerStateUnknown indicates that the container is in an error
// state where information about it cannot be retrieved
ContainerStateUnknown ContainerStatus = iota
// ContainerStateConfigured indicates that the container has had its
// storage configured but it has not been created in the OCI runtime
ContainerStateConfigured ContainerStatus = iota
// ContainerStateCreated indicates the container has been created in
// the OCI runtime but not started
ContainerStateCreated ContainerStatus = iota
// ContainerStateRunning indicates the container is currently executing
ContainerStateRunning ContainerStatus = iota
// ContainerStateStopped indicates that the container was running but has
// exited
ContainerStateStopped ContainerStatus = iota
// ContainerStatePaused indicates that the container has been paused
ContainerStatePaused ContainerStatus = iota
// ContainerStateExited indicates the the container has stopped and been
// cleaned up
ContainerStateExited ContainerStatus = iota
// ContainerStateRemoving indicates the container is in the process of
// being removed.
ContainerStateRemoving ContainerStatus = iota
// ContainerStateStopping indicates the container is in the process of
// being stopped.
ContainerStateStopping ContainerStatus = iota
)
// ContainerStatus returns a string representation for users of a container
// state. All results should match Docker's versions (from `docker ps`) as
// closely as possible, given the different set of states we support.
func (t ContainerStatus) String() string {
switch t {
case ContainerStateUnknown:
return "unknown"
case ContainerStateConfigured:
// The naming here is confusing, but it's necessary for Docker
// compatibility - their Created state is our Configured state.
return "created"
case ContainerStateCreated:
// Docker does not have an equivalent to this state, so give it
// a clear name. Most of the time this is a purely transitory
// state between Configured and Running so we don't expect to
// see it much anyways.
return "initialized"
case ContainerStateRunning:
return "running"
case ContainerStateStopped:
return "stopped"
case ContainerStatePaused:
return "paused"
case ContainerStateExited:
return "exited"
case ContainerStateRemoving:
return "removing"
case ContainerStateStopping:
return "stopping"
}
return "bad state"
}
// StringToContainerStatus converts a string representation of a containers
// status into an actual container status type
func StringToContainerStatus(status string) (ContainerStatus, error) {
switch status {
case ContainerStateUnknown.String():
return ContainerStateUnknown, nil
case ContainerStateConfigured.String():
return ContainerStateConfigured, nil
case ContainerStateCreated.String():
return ContainerStateCreated, nil
case ContainerStateRunning.String():
return ContainerStateRunning, nil
case ContainerStateStopped.String():
return ContainerStateStopped, nil
case ContainerStatePaused.String():
return ContainerStatePaused, nil
case ContainerStateExited.String():
return ContainerStateExited, nil
case ContainerStateRemoving.String():
return ContainerStateRemoving, nil
default:
return ContainerStateUnknown, errors.Wrapf(ErrInvalidArg, "unknown container state: %s", status)
}
}
// ContainerExecStatus is the status of an exec session within a container.
type ContainerExecStatus int
const (
// ExecStateUnknown indicates that the state of the exec session is not
// known.
ExecStateUnknown ContainerExecStatus = iota
// ExecStateCreated indicates that the exec session has been created but
// not yet started
ExecStateCreated ContainerExecStatus = iota
// ExecStateRunning indicates that the exec session has been started but
// has not yet exited.
ExecStateRunning ContainerExecStatus = iota
// ExecStateStopped indicates that the exec session has stopped and is
// no longer running.
ExecStateStopped ContainerExecStatus = iota
)
// String returns a string representation of a given exec state.
func (s ContainerExecStatus) String() string {
switch s {
case ExecStateUnknown:
return "unknown"
case ExecStateCreated:
return "created"
case ExecStateRunning:
return "running"
case ExecStateStopped:
return "stopped"
default:
return "bad state"
}
}
// ContainerStats contains the statistics information for a running container
type ContainerStats struct {
AvgCPU float64
ContainerID string
Name string
PerCPU []uint64
CPU float64
CPUNano uint64
CPUSystemNano uint64
DataPoints int64
SystemNano uint64
MemUsage uint64
MemLimit uint64
MemPerc float64
NetInput uint64
NetOutput uint64
BlockInput uint64
BlockOutput uint64
PIDs uint64
UpTime time.Duration
Duration uint64
}
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