Merge pull request #2463 from provokateurin/feat/sd_notify

Add sd_notify support

ca/ca.go

@@ -15,6 +15,7 @@ import (
 	"strings"
 	"time"
 
+	"github.com/coreos/go-systemd/v22/daemon"
 	"github.com/go-chi/chi/v5"
 	"github.com/go-chi/chi/v5/middleware"
 	"golang.org/x/sync/errgroup"
@@ -469,8 +470,12 @@ func (ca *CA) Run() error {
 		return ca.srv.ListenAndServe()
 	})
 
+	_, _ = daemon.SdNotify(true, daemon.SdNotifyReady)
+
 	err := eg.Wait()
 
+	_, _ = daemon.SdNotify(true, daemon.SdNotifyStopping)
+
 	// if the error is not the usual HTTP server closed error, it is
 	// highly likely that an error occurred when starting one of the
 	// CA servers, possibly because of a port already being in use or
@@ -526,6 +531,8 @@ func (ca *CA) Stop() error {
 // Reload reloads the configuration of the CA and calls to the server Reload
 // method.
 func (ca *CA) Reload() error {
+	_, _ = daemon.SdNotify(true, daemon.SdNotifyReloading)
+
 	cfg, err := config.LoadConfiguration(ca.opts.configFile)
 	if err != nil {
 		return fmt.Errorf("error reloading ca configuration: %w", err)
@@ -590,6 +597,9 @@ func (ca *CA) Reload() error {
 	ca.config = newCA.config
 	ca.opts = newCA.opts
 	ca.renewer = newCA.renewer
+
+	_, _ = daemon.SdNotify(true, daemon.SdNotifyReady)
+
 	return nil
 }
 

go.mod

@@ -8,6 +8,7 @@ require (
 	github.com/Masterminds/sprig/v3 v3.3.0
 	github.com/ccoveille/go-safecast/v2 v2.0.0
 	github.com/coreos/go-oidc/v3 v3.16.0
+	github.com/coreos/go-systemd/v22 v22.6.0
 	github.com/dgraph-io/badger v1.6.2
 	github.com/dgraph-io/badger/v2 v2.2007.4
 	github.com/fxamacker/cbor/v2 v2.9.0

go.sum

@@ -107,6 +107,8 @@ github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8Nz
 github.com/coreos/go-oidc/v3 v3.16.0 h1:qRQUCFstKpXwmEjDQTIbyY/5jF00+asXzSkmkoa/mow=
 github.com/coreos/go-oidc/v3 v3.16.0/go.mod h1:wqPbKFrVnE90vty060SB40FCJ8fTHTxSwyXJqZH+sI8=
 github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
+github.com/coreos/go-systemd/v22 v22.6.0 h1:aGVa/v8B7hpb0TKl0MWoAavPDmHvobFe5R5zn0bCJWo=
+github.com/coreos/go-systemd/v22 v22.6.0/go.mod h1:iG+pp635Fo7ZmV/j14KUcmEyWF+0X7Lua8rrTWzYgWU=
 github.com/cpuguy83/go-md2man v1.0.10/go.mod h1:SmD6nW6nTyfqj6ABTjUi3V3JVMnlJmwcJI5acqYI6dE=
 github.com/cpuguy83/go-md2man/v2 v2.0.7 h1:zbFlGlXEAKlwXpmvle3d8Oe3YnkKIK4xSRTd3sHPnBo=
 github.com/cpuguy83/go-md2man/v2 v2.0.7/go.mod h1:oOW0eioCTA6cOiMLiUPZOpcVxMig6NIQQ7OS05n1F4g=