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Fix startup of Ceph cluster manager daemon on Debian 8

Signed-off-by: Mark Korenberg <>
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1 parent 049641d commit 2ccd02a838ee92ec0ba4c9800f61b7df159d75a1 @socketpair socketpair committed Dec 18, 2016
Showing with 5 additions and 3 deletions.
  1. +5 −3 systemd/ceph-mgr@.service
@@ -14,9 +14,11 @@ Environment=CLUSTER=ceph
# permissions to create the mgr key. Failure is ignored at every step (the
# '-' prefix) in case someone has already used some other trick to set
# everything up manually.
-ExecStartPre=-/usr/bin/mkdir -p /var/lib/ceph/mgr/${CLUSTER}-%i
-ExecStartPre=-/usr/bin/sh -c "[ -f /var/lib/ceph/mgr/${CLUSTER}-%i/keyring ] || /usr/bin/ceph-authtool --create-keyring --gen-key --name=mgr.%i /var/lib/ceph/mgr/${CLUSTER}-%i/keyring"
-ExecStartPre=-/usr/bin/chown -R ceph.ceph /var/lib/ceph/mgr/${CLUSTER}-%i
+# `sh -c "exec ..."` is required, since different Linux ditributives have different rules on absolute paths of that executables.
+# systemd requires to use absoulte paths.
+ExecStartPre=-/bin/sh -c "exec mkdir -p /var/lib/ceph/mgr/${CLUSTER}-%i"
+ExecStartPre=-/bin/sh -c "[ -f /var/lib/ceph/mgr/${CLUSTER}-%i/keyring ] || /usr/bin/ceph-authtool --create-keyring --gen-key --name=mgr.%i /var/lib/ceph/mgr/${CLUSTER}-%i/keyring"
+ExecStartPre=-/bin/sh -c "exec chown -R ceph.ceph /var/lib/ceph/mgr/${CLUSTER}-%i"
ExecStartPre=-/usr/bin/ceph -i /var/lib/ceph/mgr/${CLUSTER}-%i/keyring auth add mgr.%i mon 'allow *' --keyring=/var/lib/ceph/mon/${CLUSTER}-%i/keyring --name=mon.
ExecStart=/usr/bin/ceph-mgr -f --cluster ${CLUSTER} --id %i --setuser ceph --setgroup ceph
ExecReload=/bin/kill -HUP $MAINPID

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