portainer/api/cron/job_snapshot.go

86 lines
3.0 KiB
Go

package cron
import (
"log"
"github.com/portainer/portainer/api"
)
// SnapshotJobRunner is used to run a SnapshotJob
type SnapshotJobRunner struct {
schedule *portainer.Schedule
context *SnapshotJobContext
}
// SnapshotJobContext represents the context of execution of a SnapshotJob
type SnapshotJobContext struct {
endpointService portainer.EndpointService
snapshotter portainer.Snapshotter
}
// NewSnapshotJobContext returns a new context that can be used to execute a SnapshotJob
func NewSnapshotJobContext(endpointService portainer.EndpointService, snapshotter portainer.Snapshotter) *SnapshotJobContext {
return &SnapshotJobContext{
endpointService: endpointService,
snapshotter: snapshotter,
}
}
// NewSnapshotJobRunner returns a new runner that can be scheduled
func NewSnapshotJobRunner(schedule *portainer.Schedule, context *SnapshotJobContext) *SnapshotJobRunner {
return &SnapshotJobRunner{
schedule: schedule,
context: context,
}
}
// GetSchedule returns the schedule associated to the runner
func (runner *SnapshotJobRunner) GetSchedule() *portainer.Schedule {
return runner.schedule
}
// Run triggers the execution of the schedule.
// It will iterate through all the endpoints available in the database to
// create a snapshot of each one of them.
// As a snapshot can be a long process, to avoid any concurrency issue we
// retrieve the latest version of the endpoint right after a snapshot.
func (runner *SnapshotJobRunner) Run() {
go func() {
endpoints, err := runner.context.endpointService.Endpoints()
if err != nil {
log.Printf("background schedule error (endpoint snapshot). Unable to retrieve endpoint list (err=%s)\n", err)
return
}
for _, endpoint := range endpoints {
if endpoint.Type == portainer.AzureEnvironment || endpoint.Type == portainer.EdgeAgentEnvironment {
continue
}
snapshot, snapshotError := runner.context.snapshotter.CreateSnapshot(&endpoint)
latestEndpointReference, err := runner.context.endpointService.Endpoint(endpoint.ID)
if latestEndpointReference == nil {
log.Printf("background schedule error (endpoint snapshot). Endpoint not found inside the database anymore (endpoint=%s, URL=%s) (err=%s)\n", endpoint.Name, endpoint.URL, err)
continue
}
latestEndpointReference.Status = portainer.EndpointStatusUp
if snapshotError != nil {
log.Printf("background schedule error (endpoint snapshot). Unable to create snapshot (endpoint=%s, URL=%s) (err=%s)\n", endpoint.Name, endpoint.URL, snapshotError)
latestEndpointReference.Status = portainer.EndpointStatusDown
}
if snapshot != nil {
latestEndpointReference.Snapshots = []portainer.Snapshot{*snapshot}
}
err = runner.context.endpointService.UpdateEndpoint(latestEndpointReference.ID, latestEndpointReference)
if err != nil {
log.Printf("background schedule error (endpoint snapshot). Unable to update endpoint (endpoint=%s, URL=%s) (err=%s)\n", endpoint.Name, endpoint.URL, err)
return
}
}
}()
}