fix: [apache] bail out as soon as posisble on failures

apache/hooks/web_proxy-relation-joined

@@ -1,15 +1,14 @@
 #!/bin/bash
-
 ## Should be executable N time in a row with same result.
 
-. lib/common
-
 set -e
 
+. lib/common
+
 apache_proxy_dir
 
 APACHE_CORE_RULES=$(relation-get apache-core-rules 2>/dev/null) || true
 if [ "$APACHE_CORE_RULES" ]; then
-    apache_core_rules_add "$APACHE_CORE_RULES"
+    apache_core_rules_add "$APACHE_CORE_RULES" || exit 1
 fi
 

apache/lib/common

@@ -6,7 +6,7 @@ apache_proxy_dir () {
         err "You must specify a ${WHITE}domain$NORMAL option in relation."
         return 1
     }
-    proxy=yes apache_vhost_create
+    proxy=yes apache_vhost_create || return 1
     info "Added $DOMAIN as a proxy to $TARGET."
 }
 export -f apache_proxy_dir
@@ -40,7 +40,7 @@ apache_vhost_create () {
 
     __vhost_cfg_creds_enabled=$(relation-get creds 2>/dev/null) || true
     if [ "$__vhost_cfg_creds_enabled" ]; then
-        apache_passwd_file
+        apache_passwd_file || return 1
     fi
 
     if is_protocol_enabled https; then