diff --git a/image/Dockerfile b/image/Dockerfile
index 6d69a54..7a69b86 100644
--- a/image/Dockerfile
+++ b/image/Dockerfile
@@ -34,6 +34,7 @@ RUN apk --no-cache add \
     && rm -f keepalived.tar.gz \
     && rm -rf /container/keepalived-sources \
     && apk --no-cache del \
+        curl \
         gcc \
         ipset-dev \
         iptables-dev \
diff --git a/image/service/keepalived/finish.sh b/image/service/keepalived/finish.sh
index 3276d22..24ecdfd 100755
--- a/image/service/keepalived/finish.sh
+++ b/image/service/keepalived/finish.sh
@@ -7,9 +7,9 @@ log-helper level eq trace && set -x
 # try to delete virtual ips from interface
 for vip in $(complex-bash-env iterate KEEPALIVED_VIRTUAL_IPS)
 do
-  IP=$(echo ${!vip} | awk '{print $1}'}
+  IP=$(echo ${!vip} | awk '{print $1}')
   IP_INFO=$(ip addr list | grep ${IP}) || continue
-  IP_V6=$(echo "${IP_INFO}" | grep "inet6")
+  IP_V6=$(echo "${IP_INFO}" | grep "inet6") || true
 
   # ipv4
   if [ -z "${IP_V6}" ]; then
diff --git a/image/service/keepalived/process.sh b/image/service/keepalived/process.sh
index 7e634b7..4d759d3 100755
--- a/image/service/keepalived/process.sh
+++ b/image/service/keepalived/process.sh
@@ -8,7 +8,7 @@ echo -n "Waiting config file /usr/local/etc/keepalived/keepalived.conf"
 while [ ! -e "/usr/local/etc/keepalived/keepalived.conf" ]
 do
   echo -n "."
-  sleep
+  sleep 0.1
 done
 echo "ok"
 
diff --git a/image/service/keepalived/startup.sh b/image/service/keepalived/startup.sh
index 8470897..4fae6e3 100755
--- a/image/service/keepalived/startup.sh
+++ b/image/service/keepalived/startup.sh
@@ -43,9 +43,9 @@ fi
 # try to delete virtual ips from interface
 for vip in $(complex-bash-env iterate KEEPALIVED_VIRTUAL_IPS)
 do
-  IP=$(echo ${!vip} | awk '{print $1}'}
+  IP=$(echo ${!vip} | awk '{print $1}')
   IP_INFO=$(ip addr list | grep ${IP}) || continue
-  IP_V6=$(echo "${IP_INFO}" | grep "inet6")
+  IP_V6=$(echo "${IP_INFO}" | grep "inet6") || true
 
   # ipv4
   if [ -z "${IP_V6}" ]; then