Merge branch 'systemd' into 'main'

Add Systemd init system support

Closes #77

See merge request alpine/cloud/tiny-cloud!148

CHANGELOG.md

@@ -1,6 +1,6 @@
 # CHANGELOG
 
-## 2026-06-XX - Tiny Cloud v3.3.3
+## 2026-06-15 - Tiny Cloud v3.3.3
 
 * Support IPv6 and multiple endpoints
   [#68](https://gitlab.alpinelinux.org/alpine/cloud/tiny-cloud/-/work_items/68)
@@ -9,6 +9,10 @@
   routable.  Fixes race condition between `dhcpcd` starting and attempting to
   reach IMDS before routes are resolved.
 
+* Currently the most recent IMDS endpoint that worked is cached, but only if
+  **root** is running `imds`.  We may consider keeping track of this per user
+  in the future
+
 ## 2026-06-08 - Tiny Cloud v3.3.2
 
 * Fixes an autodetect regression introduced in v3.3.1

Makefile

@@ -5,7 +5,7 @@ MAN1PAGES = docs/imds.1
 MAN5PAGES = docs/tiny-cloud.conf.5 docs/cloud-config.5 docs/alpine-config.5
 MAN8PAGES = docs/tiny-cloud.8
 
-SUBPACKAGES = core openrc $(CLOUDS)
+SUBPACKAGES = core init $(CLOUDS)
 
 .PHONY: check install $(SUBPACKAGES)
 
@@ -31,9 +31,13 @@ core: $(MAN1PAGES) $(MAN5PAGES) $(MAN8PAGES)
 	install -Dm755 -t "$(PREFIX)"/usr/sbin \
 		sbin/tiny-cloud
 
-openrc:
-	install -Dm755 -t "$(PREFIX)"/etc/init.d \
-		dist/openrc/*
+init:
+	[ $(command -v rc-status) ] && \
+		install -Dm755 -t "$(PREFIX)"/etc/init.d \
+			dist/openrc/*
+	[ $(command -v systemctl) ] && \
+		install -Dm755 -t "$(PREFIX)"/etc/systemd/system \
+			dist/systemd/*
 
 $(CLOUDS):
 	install -Dm644 -t "$(PREFIX)"/usr/lib/tiny-cloud/cloud/$@ \

bin/imds

@@ -120,7 +120,7 @@ _imds_has_route() {
 }
 
 _imds() {
-	local endpoint endpoints routed attempts=1
+	local endpoint endpoints routed attempts=1 cached
 	if [ "$IMDS_ENDPOINT_WAIT_ATTEMPTS" -le 0 ]; then
 		endpoints="$(_imds_endpoints)"
 	fi
@@ -148,7 +148,8 @@ _imds() {
 		wget --quiet --timeout 1 --output-document - \
 			--header "$(_imds_header)" \
 			"http://$endpoint/$IMDS_URI/$1$IMDS_QUERY" && {
-				echo "$endpoint" > "$IMDS_ENDPOINT_CACHE"
+				cached="$(cat "$IMDS_ENDPOINT_CACHE" 2>/dev/null)" || :
+				[ "$endpoint" = "$cached" ] || echo "$endpoint" 2>/dev/null > "$IMDS_ENDPOINT_CACHE" || :
 				return 0
 			}
 	done

dist/systemd/tiny-cloud-boot.service

@@ -0,0 +1,10 @@
+[Unit]
+Description=Tiny Cloud Bootstrap - boot phase
+
+[Service]
+Type=oneshot
+ExecStart=tiny-cloud boot
+Restart=no
+
+[Install]
+WantedBy=multi-user.target

dist/systemd/tiny-cloud-early.service

@@ -0,0 +1,11 @@
+[Unit]
+Description=Tiny Cloud Bootstrap - early phase
+After=network.target
+
+[Service]
+Type=oneshot
+ExecStart=tiny-cloud early
+Restart=no
+
+[Install]
+WantedBy=multi-user.target

dist/systemd/tiny-cloud-final.service

@@ -0,0 +1,11 @@
+[Unit]
+Description=Tiny Cloud Bootstrap - final phase
+After=tiny-cloud-boot.service tiny-cloud-main.service tiny-cloud-early.service
+
+[Service]
+Type=oneshot
+ExecStart=tiny-cloud final
+Restart=no
+
+[Install]
+WantedBy=multi-user.target

dist/systemd/tiny-cloud-main.service

@@ -0,0 +1,12 @@
+[Unit]
+Description=Tiny Cloud Bootstrap - main phase
+After=network.target sshd.service
+
+[Service]
+Type=oneshot
+ExecStart=tiny-cloud main
+Restart=no
+
+[Install]
+WantedBy=multi-user.target
+