nginx: create certdir directory before attempting symlink

Makefile

@@ -31,6 +31,8 @@ down:
 	$(DOCKER) down
 nginx-shell:
 	$(DOCKER) exec nginx sh
+nginx-logs:
+	$(DOCKER) logs -f --tail 1000 nginx
 grafana-shell:
 	$(DOCKER) exec grafana bash
 hedgedoc-shell:

nginx/docker-entrypoint.d/10-createkey.sh

@@ -7,6 +7,7 @@ if [ -z "$DOMAIN_NAME" ]; then
 fi
 
 certdir="/etc/letsencrypt/live/${DOMAIN_NAME}"
+mkdir -p "$certdir"
 
 # ensure that the keys are available with a fixed path
 for key in fullchain.pem privkey.pem ; do
@@ -17,7 +18,6 @@ if [ -r "$certdir/fullchain.pem" ]; then
 	exit 0
 fi
 
-mkdir -p "$certdir"
 
 echo >&2 "$certdir: Creating temporary keys"
 openssl req \