Merge pull request #100 from SaravanaStorageNetwork/check_size_service

A simple service to check whether disk full in /var/lib/glusterd

Author: humblec

CentOS/Dockerfile

@@ -59,18 +59,23 @@ ADD gluster-block-setup.service /etc/systemd/system/gluster-block-setup.service
 ADD gluster-block-setup.sh /usr/sbin/gluster-block-setup.sh
 ADD update-params.sh /usr/local/bin/update-params.sh
 ADD tcmu-runner-params /etc/sysconfig/tcmu-runner-params
+ADD gluster-check-diskspace.service  /etc/systemd/system/gluster-check-diskspace.service
+ADD check_diskspace.sh /usr/local/bin/check_diskspace.sh
 
 RUN chmod 644 /etc/systemd/system/gluster-setup.service && \
+chmod 644 /etc/systemd/system/gluster-check-diskspace.service && \
 chmod 500 /usr/sbin/gluster-setup.sh && \
 chmod 644 /etc/systemd/system/gluster-block-setup.service && \
 chmod 500 /usr/sbin/gluster-block-setup.sh && \
 chmod +x /usr/local/bin/update-params.sh && \
+chmod +x /usr/local/bin/check_diskspace.sh && \
 systemctl disable nfs-server.service && \
 systemctl mask getty.target && \
 systemctl enable gluster-setup.service && \
 systemctl enable gluster-block-setup.service && \
 systemctl enable gluster-blockd.service && \
-systemctl enable glusterd.service
+systemctl enable glusterd.service && \
+systemctl enable gluster-check-diskspace.service
 
 EXPOSE 2222 111 245 443 24007 2049 8080 6010 6011 6012 38465 38466 38468 38469 49152 49153 49154 49156 49157 49158 49159 49160 49161 49162
 

CentOS/check_diskspace.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+# Disk full
+while true
+do
+        # sleep early to get glusterd settled
+        sleep 120
+        current_usage=$( df --output=pcent  '/var/lib/glusterd' | tail -n1  | awk {'print $1'} )
+        max_usage=99%
+        if [ "${current_usage%?}" -ge "${max_usage%?}" ]; then
+                echo "$(date) - $(basename $0): Running out of space in /var/lib/glusterd"
+                echo "$(date) - $(basename $0): Stopping glusterd"
+                systemctl stop glusterd.service
+                echo "$(date) -$(basename $0): Stopped glusterd"
+                break
+        fi
+done

CentOS/gluster-check-diskspace.service

@@ -0,0 +1,10 @@
+[Unit]
+Description=Check glusterd config directory full
+After=glusterd.service
+
+[Service]
+Type=simple
+ExecStart=/usr/local/bin/check_diskspace.sh
+
+[Install]
+WantedBy=multi-user.target