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Check etcd port instead of process name

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currently the pgrep check does not allow any etcd process to exist
other than the one we intend to start in our scripts. All we need
to know is if the port is free. So let us use netstat to check
if anyone is using that port. We don't really need to know if there
is another instance of etcd is running or not.
This commit is contained in:
Davanum Srinivas 2018-02-09 08:59:56 -05:00
parent aee2cff1b8
commit ea7547cd42
1 changed files with 4 additions and 4 deletions
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8
hack/lib/etcd.sh
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@ -27,10 +27,10 @@ kube::etcd::validate() {
exit 1 exit 1
} }
# validate it is not running # validate etcd port is free
if pgrep -x etcd >/dev/null 2>&1; then if netstat -nat | grep "[\.:]${ETCD_PORT:?} .*LISTEN" >/dev/null 2>&1; then
kube::log::usage "etcd appears to already be running on this machine (`pgrep -xl etcd`) (or its a zombie and you need to kill its parent)." kube::log::usage "unable to start etcd as port ${ETCD_PORT} is in use. please stop the process listening on this port and retry."
kube::log::usage "retry after you resolve this etcd error." kube::log::usage "`netstat -nat | grep "[\.:]${ETCD_PORT:?} .*LISTEN"`"
exit 1 exit 1
fi fi