add files

README.md

@@ -1,2 +1,11 @@
 # acme.sh-systemd
-systemd service for automatic Let's Encrypt(for acme.sh)renewals
+systemd service for automatic Let's Encrypt(for acme.sh) renewals
+The timer unit should be enabled.
+
+How to use
+
+mkdir -pm 0700 "/{etc,var/log}/acme.sh"
+
+add LOG_FILE='/var/log/acme.sh/acme.sh.log'
+
+acme.sh --home /etc/acme.sh command ...[parameters]....

acme.sh.service

@@ -0,0 +1,12 @@
+[Unit]
+Description=Renew Let's Encrypt Certificates
+After=network.target network-online.target nss-lookup.target
+Wants=network-online.target nss-lookup.target
+
+[Service]
+# If the version of systemd is 240 or above,  then uncommenting Type=simple and commenting out Type=exec
+#Type=exec
+Type=simple
+User=root
+ExecStart=/usr/bin/acme.sh --cron --home /etc/acme.sh
+Restart=on-failure 

acme.sh.timer

@@ -0,0 +1,9 @@
+[Unit]
+Description=Bimonthly check for acme.sh(Let's Encrypt) renewals
+
+[Timer]
+OnCalendar=*-1/2-01 00:00:00
+Persistent=yes
+
+[Install]
+WantedBy=timers.target