// issueKillAction issues an `agentdestroy` action targetted to a specific agent // and updates the status of the agent in the database func issueKillAction(agent mig.Agent, ctx Context) (err error) { defer func() { if e := recover(); e != nil { err = fmt.Errorf("issueKillAction() -> %v", e) } ctx.Channels.Log <- mig.Log{OpID: ctx.OpID, Desc: "leaving issueKillAction()"}.Debug() }() // generate an `agentdestroy` action for this agent killAction := mig.Action{ ID: mig.GenID(), Name: fmt.Sprintf("Kill agent %s", agent.Name), Target: fmt.Sprintf("queueloc='%s'", agent.QueueLoc), ValidFrom: time.Now().Add(-60 * time.Second).UTC(), ExpireAfter: time.Now().Add(30 * time.Minute).UTC(), SyntaxVersion: 2, } var opparams struct { PID int `json:"pid"` Version string `json:"version"` } opparams.PID = agent.PID opparams.Version = agent.Version killOperation := mig.Operation{ Module: "agentdestroy", Parameters: opparams, } killAction.Operations = append(killAction.Operations, killOperation) // sign the action with the scheduler PGP key secring, err := getSecring(ctx) if err != nil { panic(err) } pgpsig, err := killAction.Sign(ctx.PGP.PrivKeyID, secring) if err != nil { panic(err) } killAction.PGPSignatures = append(killAction.PGPSignatures, pgpsig) var jsonAction []byte jsonAction, err = json.Marshal(killAction) if err != nil { panic(err) } // write the action to the spool for scheduling dest := fmt.Sprintf("%s/%.0f.json", ctx.Directories.Action.New, killAction.ID) err = safeWrite(ctx, dest, jsonAction) if err != nil { panic(err) } // mark the agent as `destroyed` in the database err = ctx.DB.MarkAgentDestroyed(agent) if err != nil { panic(err) } ctx.Channels.Log <- mig.Log{Desc: fmt.Sprintf("issued kill action for agent '%s' with PID '%d'", agent.Name, agent.PID)}.Warning() return }
// SignAction takes a MIG Action, signs it with the key identified in the configuration // and returns the signed action func (cli Client) SignAction(a mig.Action) (signed_action mig.Action, err error) { defer func() { if e := recover(); e != nil { err = fmt.Errorf("SignAction() -> %v", e) } }() secring, err := os.Open(cli.Conf.GPG.Home + "/secring.gpg") if err != nil { panic(err) } defer secring.Close() sig, err := a.Sign(cli.Conf.GPG.KeyID, secring) if err != nil { panic(err) } a.PGPSignatures = append(a.PGPSignatures, sig) signed_action = a return }