[4/4] xfs_scrub_all: failure reporting for the xfs_scrub_all job

Commit Message

Darrick J. Wong Jan. 1, 2020, 1:23 a.m. UTC

From: Darrick J. Wong <[e-mail]>

Create a failure reporting service for when xfs_scrub_all fails.  This
is probably a debug-only patch.

Signed-off-by: Darrick J. Wong <[e-mail]>
---
 scrub/Makefile                      |    3 ++-
 scrub/xfs_scrub_all_fail            |   24 ++++++++++++++++++++++++
 scrub/xfs_scrub_all_fail.service.in |   11 +++++++++++
 3 files changed, 37 insertions(+), 1 deletion(-)
 create mode 100755 scrub/xfs_scrub_all_fail
 create mode 100644 scrub/xfs_scrub_all_fail.service.in

Patch

diff --git a/scrub/Makefile b/scrub/Makefile
index 47c887eb..50d16121 100644
--- a/scrub/Makefile
+++ b/scrub/Makefile
@@ -18,7 +18,7 @@  XFS_SCRUB_ALL_PROG = xfs_scrub_all
 XFS_SCRUB_ARGS = -b -n
 ifeq ($(HAVE_SYSTEMD),yes)
 INSTALL_SCRUB += install-systemd
-SYSTEMD_SERVICES = xfs_scrub@.service xfs_scrub_all.service xfs_scrub_all.timer xfs_scrub_fail@.service
+SYSTEMD_SERVICES = xfs_scrub@.service xfs_scrub_all.service xfs_scrub_all.timer xfs_scrub_fail@.service xfs_scrub_all_fail.service
 OPTIONAL_TARGETS += $(SYSTEMD_SERVICES)
 endif
 ifeq ($(HAVE_CROND),yes)
@@ -133,6 +133,7 @@  install-systemd: default $(SYSTEMD_SERVICES)
 	$(INSTALL) -m 644 $(SYSTEMD_SERVICES) $(SYSTEMD_SYSTEM_UNIT_DIR)
 	$(INSTALL) -m 755 -d $(PKG_LIB_DIR)/$(PKG_NAME)
 	$(INSTALL) -m 755 xfs_scrub_fail $(PKG_LIB_DIR)/$(PKG_NAME)
+	$(INSTALL) -m 755 xfs_scrub_all_fail $(PKG_LIB_DIR)/$(PKG_NAME)
 
 install-crond: default $(CRONTABS)
 	$(INSTALL) -m 755 -d $(CROND_DIR)
diff --git a/scrub/xfs_scrub_all_fail b/scrub/xfs_scrub_all_fail
new file mode 100755
index 00000000..8391abc8
--- /dev/null
+++ b/scrub/xfs_scrub_all_fail
@@ -0,0 +1,24 @@ 
+#!/bin/bash
+
+# Email logs of failed xfs_scrub_all unit runs
+
+mailer=/usr/sbin/sendmail
+recipient="$1"
+test -z "${recipient}" && exit 0
+hostname="$(hostname -f 2>/dev/null)"
+test -z "${hostname}" && hostname="${HOSTNAME}"
+if [ ! -x "${mailer}" ]; then
+	echo "${mailer}: Mailer program not found."
+	exit 1
+fi
+
+(cat << ENDL
+To: $1
+From: <xfs_scrub_all@${hostname}>
+Subject: xfs_scrub_all failure on ${mntpoint}
+
+So sorry, the automatic xfs_scrub_all on ${hostname} failed.
+
+A log of what happened follows:
+ENDL
+systemctl status --full --lines 4294967295 "xfs_scrub_all") | "${mailer}" -t -i
diff --git a/scrub/xfs_scrub_all_fail.service.in b/scrub/xfs_scrub_all_fail.service.in
new file mode 100644
index 00000000..2d85db28
--- /dev/null
+++ b/scrub/xfs_scrub_all_fail.service.in
@@ -0,0 +1,11 @@ 
+[Unit]
+Description=Online XFS Metadata Check for All Filesystems Failure Reporting for %I
+Documentation=man:xfs_scrub_all(8)
+
+[Service]
+Type=oneshot
+Environment=EMAIL_ADDR=root
+ExecStart=@pkg_lib_dir@/@pkg_name@/xfs_scrub_all_fail "${EMAIL_ADDR}"
+User=mail
+Group=mail
+SupplementaryGroups=systemd-journal