Pascal BleserandRalf Haferkamp
1827e143cd
When events occur in the supervisor, log them as FATAL when appropriate (panic and termination when not restarting) instead of always using INFO, and include more information such as the service name and the current failures, etc..., rather than the generic message that was used so far.
OpenCloud: Runtime
Pman is a slim utility library for supervising long-running processes. It can be embedded or used as a cli command.
When used as a CLI command it relays actions to a running runtime.
Usage
Start a runtime
package main
import "github.com/opencloude-eu/opencloud/opencloud/pkg/runtime/service"
func main() {
service.Start()
}
Start sending messages
Example
package main
import (
"fmt"
"github.com/opencloud-eu/opencloud/opencloud/pkg/runtime/process"
"github.com/opencloud-eu/opencloud/opencloud/pkg/runtime/service"
"github.com/rs/zerolog/log"
"os"
"os/signal"
"syscall"
"time"
)
func main() {
s := service.NewService()
var c = make(chan os.Signal, 1)
var o int
signal.Notify(c, syscall.SIGINT, syscall.SIGTERM)
if err := s.Start(process.NewProcEntry("ocs", nil, "ocs"), &o); err != nil {
os.Exit(1)
}
time.AfterFunc(3*time.Second, func() {
var acc = "ocs"
fmt.Printf(fmt.Sprintf("shutting down service: %s", acc))
if err := s.Controller.Kill(&acc); err != nil {
log.Fatal()
}
os.Exit(0)
})
for {
select {
case <-c:
return
}
}
}
Run the example above with RUNTIME_KEEP_ALIVE=true and with no RUNTIME_KEEP_ALIVE set to see its behavior. It requires an OpenCloud binary present in your $PATH for it to work.