1 files changed, 79 insertions, 0 deletions
diff --git a/src/infrastructure/scripts/check.sh b/src/infrastructure/scripts/check.sh
new file mode 100755
index 0000000..53d088c
--- /dev/null
+++ b/src/infrastructure/scripts/check.sh
@@ -0,0 +1,79 @@
+#!/bin/sh
+set -eu
+
+usage() {
+	cat <<-'EOF'
+		Usage:
+		  check
+		  check -h
+	EOF
+}
+
+help() {
+	cat <<-'EOF'
+
+
+		Options:
+		  -h, --help    show this message
+
+
+		Run system sanity checks, such as email reachability, alarms
+		reachability, etc.
+
+
+		Examples:
+
+		  Just run it
+
+		    $ check
+	EOF
+}
+
+
+for flag in "$@"; do
+	case "$flag" in
+		--)
+			break
+			;;
+		--help)
+			usage
+			help
+			exit
+			;;
+		*)
+			;;
+	esac
+done
+
+while getopts 'h' flag; do
+	case "$flag" in
+		h)
+			usage
+			help
+			exit
+			;;
+		*)
+			usage >&2
+			exit 2
+			;;
+	esac
+done
+shift $((OPTIND - 1))
+
+
+if [ "$(id -un)" != 'root' ]; then
+	printf 'This script must be run as root.\n\n' >&2
+	usage >&2
+	exit 2
+fi
+
+
+uuid() {
+	od -xN20 /dev/urandom |
+		head -n1 |
+		awk '{OFS="-"; print $2$3,$4,$5,$6,$7$8$9}'
+}
+
+for alias in abuse admin postmaster hostmaster; do
+	uuid | mail -s "\"$alias\" alias test" "$alias@$(hostname)"
+done