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Added check for noexec mount of /tmp on master #24245

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Apr 20, 2016
Merged

Added check for noexec mount of /tmp on master #24245

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10 changes: 10 additions & 0 deletions cluster/ubuntu/util.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -121,6 +121,14 @@ function verify-prereqs() {
fi
}

# Check if /tmp is mounted noexec
function check-tmp-noexec() {
if ssh $SSH_OPTS "$MASTER" "grep '/tmp' /proc/mounts | grep -q 'noexec'" >/dev/null 2>&1; then
echo "/tmp is mounted noexec on $MASTER_IP, deploying master failed"
exit 1
fi
}

# Install handler for signal trap
function trap-add() {
local handler="$1"
Expand Down Expand Up @@ -412,6 +420,8 @@ function provision-master() {

echo -e "\nDeploying master on machine ${MASTER_IP}"

check-tmp-noexec

ssh $SSH_OPTS "$MASTER" "mkdir -p ~/kube/default"

# copy the binaries and scripts to the ~/kube directory on the master
Expand Down