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-rw-r--r--modules/services/mail.nix243
1 files changed, 49 insertions, 194 deletions
diff --git a/modules/services/mail.nix b/modules/services/mail.nix
index 15010de..cf4f04c 100644
--- a/modules/services/mail.nix
+++ b/modules/services/mail.nix
@@ -36,207 +36,62 @@
description = "Notify backup failure for %i";
serviceConfig.Type = "oneshot";
script = ''
- UNIT_NAME="%i"
- HOSTNAME=$(${pkgs.coreutils}/bin/cat /etc/hostname)
- TIMESTAMP=$(${pkgs.coreutils}/bin/date "+%Y-%m-%d %H:%M:%S %Z")
-
- # Get logs
- LOGS=$(${pkgs.systemd}/bin/journalctl -u "$UNIT_NAME" -n 50 --no-pager)
+ UNIT_NAME="%i"
+ HOSTNAME=$(${pkgs.coreutils}/bin/cat /etc/hostname)
+ TIMESTAMP=$(${pkgs.coreutils}/bin/date "+%Y-%m-%d %H:%M:%S %Z")
- (
- ${pkgs.coreutils}/bin/echo "To: leander@schererleander.de"
- ${pkgs.coreutils}/bin/echo "From: root@sachiel.schererleander.de"
- ${pkgs.coreutils}/bin/echo "Subject: Backup Failure: $UNIT_NAME"
- ${pkgs.coreutils}/bin/echo "Content-Type: text/html; charset=UTF-8"
- ${pkgs.coreutils}/bin/echo ""
- ${pkgs.coreutils}/bin/cat <<EOF
- <!DOCTYPE html>
- <html>
- <head>
- <meta name="color-scheme" content="light dark">
- <style>
- :root { color-scheme: light dark; }
- body { font-family: sans-serif; line-height: 1.5; color: #000; background: #fff; max-width: 800px; margin: 0 auto; padding: 20px; }
- h1 { border-bottom: 2px solid #000; color: #c00; }
- pre, .crit { background: #f0f0f0; padding: 10px; font-family: monospace; font-size: 13px; }
- .crit { border-left: 4px solid #c00; }
- table { width: 100%; border-collapse: collapse; margin-bottom: 15px; font-size: 13px; }
- th, td { text-align: left; padding: 6px; border-bottom: 1px solid #ddd; }
- @media (prefers-color-scheme: dark) {
- body { background: #121212; color: #eee; }
- h1, th { border-color: #555; }
- h1 { color: #ff6666; }
- pre, .crit { background: #1e1e1e; border-color: #eee; }
- .crit { border-left-color: #ff6666; }
- th, td { border-color: #333; }
- }
- </style>
- </head>
- <body>
- <h1>Backup Failure Alert</h1>
-
- <table>
- <tr><th>Unit</th><td>$UNIT_NAME</td></tr>
- <tr><th>Host</th><td>$HOSTNAME</td></tr>
- <tr><th>Time</th><td>$TIMESTAMP</td></tr>
- </table>
+ # Get logs
+ LOGS=$(${pkgs.systemd}/bin/journalctl -u "$UNIT_NAME" -n 50 --no-pager)
- <p><strong>Last 50 log lines:</strong></p>
- <div class="crit">
- <pre>$LOGS</pre>
- </div>
- </body>
- </html>
-EOF
- ) | /run/wrappers/bin/sendmail -f root@sachiel.schererleander.de leander@schererleander.de
- '';
- };
-
- systemd.services."weekly-report" = {
- description = "Generate and send weekly server report";
- serviceConfig.Type = "oneshot";
- script = ''
- HOSTNAME=$(${pkgs.coreutils}/bin/cat /etc/hostname)
-
- # 1. System Health
- UPTIME=$(${pkgs.procps}/bin/uptime -p)
- FAILED_SERVICES=$(${pkgs.systemd}/bin/systemctl --failed --no-legend --no-pager | ${pkgs.coreutils}/bin/head -n 5)
- [ -z "$FAILED_SERVICES" ] && FAILED_SERVICES="None"
- DISK_USAGE=$(${pkgs.coreutils}/bin/df -h)
-
- # 2. Security Overview
- BANNED_ROWS=$(${pkgs.systemd}/bin/journalctl _COMM=fail2ban --since "1 week ago" --no-pager | ${pkgs.gnugrep}/bin/grep " Ban " | ${pkgs.gawk}/bin/awk '{
- # Log format: May 30 12:00:00 host fail2ban[123]: [jail] Ban IP
- date = $1 " " $2
- match($0, /\[(.*)\] Ban (.*)/, m)
- jail = m[1]
- ip = m[2]
- print "<tr><td><a href=\"https://iplookup.flagfox.net/?ip=" ip "\">" ip "</a></td><td>" jail "</td><td>" date "</td></tr>"
- }')
- [ -z "$BANNED_ROWS" ] && BANNED_ROWS="<tr><td colspan=\"3\">No new bans this week.</td></tr>"
-
- LOGIN_ROWS=$(${pkgs.systemd}/bin/journalctl _SYSTEMD_UNIT=sshd.service --since "1 week ago" --no-pager | ${pkgs.gnugrep}/bin/grep -E "Accepted (publickey|password)" | ${pkgs.gawk}/bin/awk '{
- # Log format: May 30 12:00:00 host sshd-session[123]: Accepted publickey for user from IP ...
- date = $1 " " $2 " " substr($3, 1, 5)
- user = $9
- ip = $11
- print "<tr><td>" user "</td><td><a href=\"https://iplookup.flagfox.net/?ip=" ip "\">" ip "</a></td><td>" date "</td></tr>"
- }')
- [ -z "$LOGIN_ROWS" ] && LOGIN_ROWS="<tr><td colspan=\"3\">No logins recorded.</td></tr>"
-
- # 3. Backup Status
- parse_backups() {
- ${pkgs.systemd}/bin/journalctl -u "$1" --since "1 week ago" --no-pager | ${pkgs.gawk}/bin/awk '
- /Archive name:/ { d=$1" "$2; n=$NF }
- /Size \(compressed\):/ { s=$(NF-2)" "$(NF-1) }
- /Duration:/ { t=$NF; if (n != "") {
- if (n ~ /\.failed$/) {
- printf "<tr><td><span class=\"failed\">%s</span></td><td>%s</td><td><span class=\"failed\">FAILED</span></td><td>%s</td></tr>\n", n, d, t
- } else {
- printf "<tr><td>%s</td><td>%s</td><td>%s</td><td>%s</td></tr>\n", n, d, s, t
- }
- n=""
- } }
- ' | ${pkgs.coreutils}/bin/tail -n 5
- }
-
- GIT_BACKUP_ROWS=$(parse_backups "borgbackup-job-git")
- [ -z "$GIT_BACKUP_ROWS" ] && GIT_BACKUP_ROWS="<tr><td colspan=\"4\">No recent logs.</td></tr>"
+ (
+ ${pkgs.coreutils}/bin/echo "To: leander@schererleander.de"
+ ${pkgs.coreutils}/bin/echo "From: root@sachiel.schererleander.de"
+ ${pkgs.coreutils}/bin/echo "Subject: Backup Failure: $UNIT_NAME"
+ ${pkgs.coreutils}/bin/echo "Content-Type: text/html; charset=UTF-8"
+ ${pkgs.coreutils}/bin/echo ""
+ ${pkgs.coreutils}/bin/cat <<EOF
+ <!DOCTYPE html>
+ <html>
+ <head>
+ <meta name="color-scheme" content="light dark">
+ <style>
+ :root { color-scheme: light dark; }
+ body { font-family: sans-serif; line-height: 1.5; color: #000; background: #fff; max-width: 800px; margin: 0 auto; padding: 20px; }
+ h1 { border-bottom: 2px solid #000; color: #c00; }
+ pre, .crit { background: #f0f0f0; padding: 10px; font-family: monospace; font-size: 13px; }
+ .crit { border-left: 4px solid #c00; }
+ table { width: 100%; border-collapse: collapse; margin-bottom: 15px; font-size: 13px; }
+ th, td { text-align: left; padding: 6px; border-bottom: 1px solid #ddd; }
+ @media (prefers-color-scheme: dark) {
+ body { background: #121212; color: #eee; }
+ h1, th { border-color: #555; }
+ h1 { color: #ff6666; }
+ pre, .crit { background: #1e1e1e; border-color: #eee; }
+ .crit { border-left-color: #ff6666; }
+ th, td { border-color: #333; }
+ }
+ </style>
+ </head>
+ <body>
+ <h1>Backup Failure Alert</h1>
- NC_BACKUP_ROWS=$(parse_backups "borgbackup-job-nextcloud")
- [ -z "$NC_BACKUP_ROWS" ] && NC_BACKUP_ROWS="<tr><td colspan=\"4\">No recent logs.</td></tr>"
+ <table>
+ <tr><th>Unit</th><td>$UNIT_NAME</td></tr>
+ <tr><th>Host</th><td>$HOSTNAME</td></tr>
+ <tr><th>Time</th><td>$TIMESTAMP</td></tr>
+ </table>
- # 4. Critical Events
- ERRORS=$(${pkgs.systemd}/bin/journalctl -p 0..3 --since "1 week ago" --no-pager | ${pkgs.coreutils}/bin/head -n 20)
- [ -z "$ERRORS" ] && ERRORS="No critical errors recorded."
-
- # Construct HTML
- (
- ${pkgs.coreutils}/bin/echo "To: leander@schererleander.de"
- ${pkgs.coreutils}/bin/echo "From: root@sachiel.schererleander.de"
- ${pkgs.coreutils}/bin/echo "Subject: Weekly Report: $HOSTNAME"
- ${pkgs.coreutils}/bin/echo "Content-Type: text/html; charset=UTF-8"
- ${pkgs.coreutils}/bin/echo ""
- ${pkgs.coreutils}/bin/cat <<EOF
- <!DOCTYPE html>
- <html>
- <head>
- <meta name="color-scheme" content="light dark">
- <style>
- :root { color-scheme: light dark; }
- body { font-family: sans-serif; line-height: 1.5; color: #000; background: #fff; max-width: 800px; margin: 0 auto; padding: 20px; }
- h1 { border-bottom: 2px solid #000; }
- h2 { border-bottom: 1px solid #ccc; text-transform: uppercase; font-size: 16px; margin-top: 30px; }
- pre, .crit { background: #f0f0f0; padding: 10px; font-family: monospace; font-size: 13px; }
- .crit { border-left: 4px solid #000; }
- table { width: 100%; border-collapse: collapse; margin-bottom: 15px; font-size: 13px; }
- th, td { text-align: left; padding: 6px; border-bottom: 1px solid #ddd; }
- th { border-bottom: 2px solid #000; }
- a { color: #0066cc; }
- .failed { color: #c00; }
- @media (prefers-color-scheme: dark) {
- body { background: #121212; color: #eee; }
- h1, h2, th { border-color: #555; }
- pre, .crit { background: #1e1e1e; border-color: #eee; }
- th, td { border-color: #333; }
- a { color: #66b3ff; }
- .failed { color: #ff6666; }
- }
- </style>
- </head>
- <body>
- <h1>Weekly Report: $HOSTNAME</h1>
-
- <h2>Server Health</h2>
- <p><strong>Uptime:</strong> $UPTIME</p>
- <p><strong>Failed Services:</strong> $FAILED_SERVICES</p>
- <p><strong>Disk Usage:</strong></p>
- <pre>$DISK_USAGE</pre>
-
- <h2>Security Overview</h2>
- <p><strong>Newly Banned IPs:</strong></p>
- <table>
- <tr><th>IP Address</th><th>Jail</th><th>Date</th></tr>
- $BANNED_ROWS
- </table>
-
- <p><strong>Successful SSH Logins:</strong></p>
- <table>
- <tr><th>User</th><th>IP Address</th><th>Date</th></tr>
- $LOGIN_ROWS
- </table>
-
- <h2>Backup Status</h2>
- <p><strong>Git Repository</strong></p>
- <table>
- <tr><th>Archive</th><th>Date</th><th>Size</th><th>Duration</th></tr>
- $GIT_BACKUP_ROWS
- </table>
-
- <p><strong>Nextcloud Repository</strong></p>
- <table>
- <tr><th>Archive</th><th>Date</th><th>Size</th><th>Duration</th></tr>
- $NC_BACKUP_ROWS
- </table>
-
- <h2>Critical Events</h2>
- <div class="crit"><pre style="margin: 0; white-space: pre-wrap; font-family: inherit;">$ERRORS</pre></div>
- </body>
- </html>
-EOF
- ) | /run/wrappers/bin/sendmail -f root@sachiel.schererleander.de leander@schererleander.de
+ <p><strong>Last 50 log lines:</strong></p>
+ <div class="crit">
+ <pre>$LOGS</pre>
+ </div>
+ </body>
+ </html>
+ EOF
+ ) | /run/wrappers/bin/sendmail -f root@sachiel.schererleander.de leander@schererleander.de
'';
};
- systemd.timers."weekly-report" = {
- description = "Timer for weekly server report";
- wantedBy = [ "timers.target" ];
- timerConfig = {
- OnCalendar = "Mon 08:00:00";
- Persistent = true;
- };
- };
-
services.rspamd = {
enable = true;
locals."dkim_signing.conf".text = ''
generated by cgit v1.3.1 (git 2.54.0) at 2026-07-14 17:51:17 +0000