feat(haproxy): Add ACME deploy helper script

haproxy_reload.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+declare haproxy_container="${1:?}"
+if systemctl --quiet is-active docker.service; then
+    if [[ "$( docker container inspect -f '{{.State.Running}}' "${haproxy_container}" 2> /dev/null )" == "true" ]]; then
+        docker exec -t "${haproxy_container}" haproxy -c -f /usr/local/etc/haproxy/haproxy.cfg && \
+        docker kill --signal SIGHUP "${haproxy_container}"
+    fi
+fi