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package events
import (
"time"
"github.com/pkg/errors"
)
// EventerType ...
type EventerType int
const (
// LogFile indicates the event logger will be a logfile
LogFile EventerType = iota
// Journald indicates journald should be used to log events
Journald EventerType = iota
// Null is a no-op events logger. It does not read or write events.
Null EventerType = iota
)
// Event describes the attributes of a libpod event
type Event struct {
// ContainerExitCode is for storing the exit code of a container which can
// be used for "internal" event notification
ContainerExitCode int
// ID can be for the container, image, volume, etc
ID string
// Image used where applicable
Image string
// Name where applicable
Name string
// Status describes the event that occurred
Status Status
// Time the event occurred
Time time.Time
// Type of event that occurred
Type Type
}
// EventerOptions describe options that need to be passed to create
// an eventer
type EventerOptions struct {
// EventerType describes whether to use journald or a file
EventerType string
// LogFilePath is the path to where the log file should reside if using
// the file logger
LogFilePath string
}
// Eventer is the interface for journald or file event logging
type Eventer interface {
// Write an event to a backend
Write(event Event) error
// Read an event from the backend
Read(options ReadOptions) error
}
// ReadOptions describe the attributes needed to read event logs
type ReadOptions struct {
// EventChannel is the comm path back to user
EventChannel chan *Event
// Filters are key/value pairs that describe to limit output
Filters []string
// FromStart means you start reading from the start of the logs
FromStart bool
// Since reads "since" the given time
Since string
// Stream is follow
Stream bool
// Until reads "until" the given time
Until string
}
// Type of event that occurred (container, volume, image, pod, etc)
type Type string
// Status describes the actual event action (stop, start, create, kill)
type Status string
const (
// If you add or subtract any values to the following lists, make sure you also update
// the switch statements below and the enums for EventType or EventStatus in the
// varlink description file.
// Container - event is related to containers
Container Type = "container"
// Image - event is related to images
Image Type = "image"
// Pod - event is related to pods
Pod Type = "pod"
// System - event is related to Podman whole and not to any specific
// container/pod/image/volume
System Type = "system"
// Volume - event is related to volumes
Volume Type = "volume"
// Attach ...
Attach Status = "attach"
// Checkpoint ...
Checkpoint Status = "checkpoint"
// Cleanup ...
Cleanup Status = "cleanup"
// Commit ...
Commit Status = "commit"
// Create ...
Create Status = "create"
// Exec ...
Exec Status = "exec"
// Exited indicates that a container's process died
Exited Status = "died"
// Export ...
Export Status = "export"
// History ...
History Status = "history"
// Import ...
Import Status = "import"
// Init ...
Init Status = "init"
// Kill ...
Kill Status = "kill"
// LoadFromArchive ...
LoadFromArchive Status = "loadfromarchive"
// Mount ...
Mount Status = "mount"
// Pause ...
Pause Status = "pause"
// Prune ...
Prune Status = "prune"
// Pull ...
Pull Status = "pull"
// Push ...
Push Status = "push"
// Refresh indicates that the system refreshed the state after a
// reboot.
Refresh Status = "refresh"
// Remove ...
Remove Status = "remove"
// Renumber indicates that lock numbers were reallocated at user
// request.
Renumber Status = "renumber"
// Restart indicates the target was restarted via an API call.
Restart Status = "restart"
// Restore ...
Restore Status = "restore"
// Save ...
Save Status = "save"
// Start ...
Start Status = "start"
// Stop ...
Stop Status = "stop"
// Sync ...
Sync Status = "sync"
// Tag ...
Tag Status = "tag"
// Unmount ...
Unmount Status = "unmount"
// Unpause ...
Unpause Status = "unpause"
// Untag ...
Untag Status = "untag"
)
// EventFilter for filtering events
type EventFilter func(*Event) bool
var (
// ErrEventTypeBlank indicates the event log found something done by podman
// but it isnt likely an event
ErrEventTypeBlank = errors.New("event type blank")
// ErrEventNotFound indicates that the event was not found in the event log
ErrEventNotFound = errors.New("unable to find event")
)
|
