From 39efde5369a98d67728a68bbdae3cde4ab74a112 Mon Sep 17 00:00:00 2001
From: Asaf Gartner <asaf@handmadedev.org>
Date: Sat, 4 Sep 2021 21:21:11 +0300
Subject: [PATCH] A possibly working admin email thing

---
 server/adminmailer.sh        |  5 +++++
 server/caddy.service         |  1 +
 server/cinera.service        |  1 +
 server/hmn.service           |  1 +
 server/serversetup.sh        | 14 ++++++++++++++
 server/status-email@.service |  8 ++++++++
 6 files changed, 30 insertions(+)
 create mode 100755 server/adminmailer.sh
 create mode 100644 server/status-email@.service

diff --git a/server/adminmailer.sh b/server/adminmailer.sh
new file mode 100755
index 00000000..f2a9048f
--- /dev/null
+++ b/server/adminmailer.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+
+/home/hmn/hmn/adminmailer/adminmailer "[$1] Status changed" <<ERRMAIL
+$(service "$1" status)
+ERRMAIL
diff --git a/server/caddy.service b/server/caddy.service
index 6091f01d..f0ea0129 100644
--- a/server/caddy.service
+++ b/server/caddy.service
@@ -28,6 +28,7 @@ LimitNPROC=512
 PrivateTmp=true
 ProtectSystem=full
 AmbientCapabilities=CAP_NET_BIND_SERVICE
+OnFailure=status-email@%n.service
 
 [Install]
 WantedBy=multi-user.target
diff --git a/server/cinera.service b/server/cinera.service
index c8eabf6b..0282f76a 100644
--- a/server/cinera.service
+++ b/server/cinera.service
@@ -10,6 +10,7 @@ ExecStart=/home/hmn/hmn/cinera/start.sh
 ExecStop=/home/hmn/hmn/cinera/stop.sh
 PIDFile=/home/hmn/hmn/cinera/data/cinera.pid
 Restart=always
+OnFailure=status-email@%n.service
 
 [Install]
 WantedBy=multi-user.target
diff --git a/server/hmn.service b/server/hmn.service
index 19de531c..50ad401e 100644
--- a/server/hmn.service
+++ b/server/hmn.service
@@ -8,6 +8,7 @@ Group=hmn
 ExecStart=/home/hmn/bin/hmn
 Restart=always
 TimeoutStopSec=15
+OnFailure=status-email@%n.service
 
 [Install]
 WantedBy=multi-user.target
diff --git a/server/serversetup.sh b/server/serversetup.sh
index 13642347..c547f5a7 100755
--- a/server/serversetup.sh
+++ b/server/serversetup.sh
@@ -199,14 +199,18 @@ if [ $checkpoint -lt 100 ]; then
     cp /home/hmn/hmn/server/caddy.service /etc/systemd/system/caddy.service
     cp /home/hmn/hmn/server/hmn.service /etc/systemd/system/hmn.service
     cp /home/hmn/hmn/server/cinera.service /etc/systemd/system/cinera.service
+    cp /home/hmn/hmn/server/status-email@.service /etc/systemd/system/status-email@.service
     chmod 644 /etc/systemd/system/caddy.service
     chmod 644 /etc/systemd/system/hmn.service
     chmod 644 /etc/systemd/system/cinera.service
+    chmod 644 /etc/systemd/system/status-email@.service
 
     cp /home/hmn/hmn/server/logrotate /etc/logrotate.d/hmn
     
     cp /home/hmn/hmn/src/config/config.go.example /home/hmn/hmn/src/config/config.go
     cp /home/hmn/hmn/server/hmn.conf.example /home/hmn/hmn/server/hmn.conf
+    cp /home/hmn/hmn/server/deploy.conf.example /home/hmn/hmn/server/deploy.conf
+    cp /home/hmn/hmn/adminmailer/config.go.example /home/hmn/hmn/adminmailer/config.go
     cp /home/hmn/hmn/cinera/cinera.conf.sample /home/hmn/hmn/cinera/cinera.conf
     chown hmn:hmn /home/hmn/hmn/src/config/config.go
     chown hmn:hmn /home/hmn/hmn/server/hmn.conf
@@ -303,6 +307,16 @@ ${BLUE_BOLD}s3cmd${RESET}: /home/hmn/.s3cfg
 
     Add the DigitalOcean Spaces credentials, and ensure that the bucket info is correct.
 
+${BLUE_BOLD}Admin mailer${RESET}: /home/hmn/hmn/adminmailer/config.go
+
+    First make sure you have Go on your path:
+
+        source ~/.bashrc
+
+	Fill in the config file and build the mailer:
+
+		cd /home/hmn/hmn/adminmailer
+		go build .
 
 ${BLUE_BOLD}===== Next steps =====${RESET}
 
diff --git a/server/status-email@.service b/server/status-email@.service
new file mode 100644
index 00000000..1ff34fc6
--- /dev/null
+++ b/server/status-email@.service
@@ -0,0 +1,8 @@
+[Unit]
+Description=Status email for %i
+
+[Service]
+Type=oneshot
+ExecStart=/home/hmn/hmn/server/adminmailer.sh %i
+User=root
+Group=systemd-journal