From ecb70f1573aeab5020a991e99236999f942dd792 Mon Sep 17 00:00:00 2001
From: Max <max@privatevoid.net>
Date: Fri, 31 Mar 2023 16:56:40 +0200
Subject: [PATCH] Send readiness notification to systemd

---
 cmd/ipfs-cluster-service/daemon.go | 11 +++++++++++
 go.mod                             |  2 +-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/cmd/ipfs-cluster-service/daemon.go b/cmd/ipfs-cluster-service/daemon.go
index e05b19cc..3dfc0880 100644
--- a/cmd/ipfs-cluster-service/daemon.go
+++ b/cmd/ipfs-cluster-service/daemon.go
@@ -31,6 +31,7 @@ import (
 
 	ma "github.com/multiformats/go-multiaddr"
 
+	sddaemon "github.com/coreos/go-systemd/v22/daemon"
 	errors "github.com/pkg/errors"
 	cli "github.com/urfave/cli"
 )
@@ -105,6 +106,16 @@ func daemon(c *cli.Context) error {
 	// will realize).
 	go bootstrap(ctx, cluster, bootstraps)
 
+	// send readiness notification to systemd
+	go func() {
+		select {
+		case <-ctx.Done():
+			return
+		case <-cluster.Ready():
+			sddaemon.SdNotify(false, sddaemon.SdNotifyReady)
+		}
+	}()
+
 	return cmdutils.HandleSignals(ctx, cancel, cluster, host, dht, store)
 }
 
diff --git a/go.mod b/go.mod
index fefbeb56..dd95dc6d 100644
--- a/go.mod
+++ b/go.mod
@@ -5,6 +5,7 @@ require (
 	contrib.go.opencensus.io/exporter/prometheus v0.4.2
 	github.com/blang/semver v3.5.1+incompatible
 	github.com/cockroachdb/pebble v0.0.0-20230227185959-8285e8dd5c08
+	github.com/coreos/go-systemd/v22 v22.5.0
 	github.com/dgraph-io/badger v1.6.2
 	github.com/dgraph-io/badger/v3 v3.2103.5
 	github.com/dustin/go-humanize v1.0.1
@@ -86,7 +87,6 @@ require (
 	github.com/cockroachdb/redact v1.0.8 // indirect
 	github.com/cockroachdb/sentry-go v0.6.1-cockroachdb.2 // indirect
 	github.com/containerd/cgroups v1.0.4 // indirect
-	github.com/coreos/go-systemd/v22 v22.5.0 // indirect
 	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
 	github.com/crackcomm/go-gitignore v0.0.0-20170627025303-887ab5e44cc3 // indirect
 	github.com/cskr/pubsub v1.0.2 // indirect