From 02183cf8a39fe95d999bd5a3c982f2fb10ed0dba Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@open-infrastructure.net>
Date: Sun, 5 Jun 2022 07:21:57 +0200
Subject: Automatically restoring previous state after reboot by using
 last-on/last-off config options, thanks to Sakirnth Nagarasa
 <sakirnth@gmail.com> for the use-case and idea.

Signed-off-by: Daniel Baumann <daniel.baumann@open-infrastructure.net>
---
 libexec/container/auto | 55 +++++++++++++++++++++++++++++++++++++-------------
 1 file changed, 41 insertions(+), 14 deletions(-)

(limited to 'libexec/container/auto')

diff --git a/libexec/container/auto b/libexec/container/auto
index 461e67d..83c5c50 100755
--- a/libexec/container/auto
+++ b/libexec/container/auto
@@ -109,25 +109,52 @@ case "${FORCE}" in
 		;;
 esac
 
-case "${ACTION}" in
-	stop)
-		OPTIONS="${OPTIONS} -f"
-		;;
-esac
-
 for FILE in "${CONFIG}"/*.conf
 do
-	if grep -Eqs "^ *cnt.auto=force-true" "${FILE}"
+	if ! grep -Eqs "^ *cnt.container-server=${HOST}" "${FILE}"
 	then
-		OPTIONS="${OPTIONS} -f"
+		continue
 	fi
 
-	if grep -Eqs "^ *cnt.auto=(force-true|true)" "${FILE}" && grep -Eqs "^ *cnt.container-server=${HOST}" "${FILE}"
-	then
-		CONTAINER="$(basename ${FILE} .conf)"
-
-		cnt ${ACTION} -n ${CONTAINER} ${OPTIONS} || true
-	fi
+	CONTAINER="$(basename ${FILE} .conf)"
+	CNT_AUTO="$(grep -Es "^ *cnt.auto=" ${FILE} | awk -F= '{ print $2 }')"
+
+	case "${ACTION}" in
+		start)
+			case "${CNT_AUTO}" in
+				force-true)
+					OPTIONS="${OPTIONS} -f"
+
+					cnt ${ACTION} -n ${CONTAINER} ${OPTIONS} || true
+					;;
+
+				last-on)
+					if grep -qs start "/var/lib/${SOFTWARE}/state/${CONTAINER}.run" || \
+					   [ ! -e "/var/lib/${SOFTWARE}/state/${CONTAINER}.run" ]
+					then
+						cnt start -n ${CONTAINER} ${OPTIONS} -f || true
+					fi
+					;;
+
+				last-off)
+					if grep -qs start "/var/lib/${SOFTWARE}/state/${CONTAINER}.run"
+					then
+						cnt start -n ${CONTAINER} ${OPTIONS} -f || true
+					fi
+					;;
+
+				true)
+					cnt ${ACTION} -n ${CONTAINER} ${OPTIONS} || true
+					;;
+			esac
+			;;
+
+		stop)
+			OPTIONS="${OPTIONS} -f --stateless"
+
+			cnt ${ACTION} -n ${CONTAINER} ${OPTIONS} || true
+			;;
+	esac
 done
 
 # Post hooks
-- 
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