fix: complete caller analytics reliability remediation

infra/server-b/caller-analytics/redis.service

@@ -0,0 +1,21 @@
+[Unit]
+Description=LisgloSIPS isolated caller analytics Redis
+After=network.target
+
+[Service]
+Type=notify
+User=redis
+Group=redis
+RuntimeDirectory=redis-caller-analytics
+RuntimeDirectoryMode=0750
+ExecStart=/usr/bin/redis-server /etc/redis/caller-analytics.conf --supervised systemd
+ExecStop=/bin/kill -s TERM $MAINPID
+Restart=on-failure
+RestartSec=2s
+NoNewPrivileges=true
+PrivateTmp=true
+ProtectSystem=strict
+ReadWritePaths=/var/lib/redis-caller-analytics /var/log/redis /run/redis-caller-analytics
+
+[Install]
+WantedBy=multi-user.target