init-cloud exist if the selinux did not enabled (#335)

cmd/clusterctl/examples/openstack/provider-component/user-data/centos/templates/master-user-data.sh

@@ -1,9 +1,8 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 set -x
 (
 KUBELET_VERSION={{ .Machine.Spec.Versions.Kubelet }}
-VERSION=v${KUBELET_VERSION}
 NAMESPACE={{ .Machine.ObjectMeta.Namespace }}
 MACHINE=$NAMESPACE
 MACHINE+="/"
@@ -58,25 +57,31 @@ gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cl
 exclude=kube*
 EOF
 
-setenforce 0
-yum install -y kubelet-$CONTROL_PLANE_VERSION kubeadm-$CONTROL_PLANE_VERSION kubectl-$CONTROL_PLANE_VERSION --disableexcludes=kubernetes
+if [[ $(getenforce) != 'Disabled' ]]; then
+  setenforce 0
+fi
+
+yum install -y kubelet-$KUBELET_VERSION kubeadm-$KUBELET_VERSION kubectl-$KUBELET_VERSION --disableexcludes=kubernetes
 
 function install_configure_docker () {
     # prevent docker from auto-starting
     echo "exit 101" > /usr/sbin/policy-rc.d
     chmod +x /usr/sbin/policy-rc.d
     trap "rm /usr/sbin/policy-rc.d" RETURN
     yum install -y docker
-    echo 'OPTIONS="--selinux-enabled --log-driver=journald --signature-verification=false --iptables=false --ip-masq=false"' >> /etc/sysconfig/docker
+    echo 'OPTIONS="--log-driver=journald --signature-verification=false --iptables=false --ip-masq=false"' >> /etc/sysconfig/docker
     systemctl daemon-reload
     systemctl enable docker
     systemctl start docker
 }
 
 install_configure_docker
 
+# Get docker cgroup driver for kubelet configuration
+CG_DRIVER=$(docker info --format '{{.CgroupDriver}}')
+
 cat <<EOF > /etc/default/kubelet
-KUBELET_KUBEADM_EXTRA_ARGS=--cgroup-driver=systemd
+KUBELET_KUBEADM_EXTRA_ARGS=--cgroup-driver=$CG_DRIVER
 EOF
 
 systemctl enable kubelet.service
@@ -175,4 +180,3 @@ chown $(id -u):$(id -g) /root/.kube/config
 
 echo done.
 ) 2>&1 | tee /var/log/startup.log
-

cmd/clusterctl/examples/openstack/provider-component/user-data/centos/templates/worker-user-data.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 set -x
 (
@@ -26,7 +26,11 @@ EOF
 swapoff -a
 # disable swap in fstab
 sed -i.bak -r 's/(.+ swap .+)/#\1/' /etc/fstab
-setenforce 0
+
+if [[ $(getenforce) != 'Disabled' ]]; then
+  setenforce 0
+fi
+
 yum install -y kubelet-$KUBELET_VERSION kubeadm-$KUBELET_VERSION kubectl-$KUBELET_VERSION --disableexcludes=kubernetes
 
 function install_configure_docker () {
@@ -35,14 +39,17 @@ function install_configure_docker () {
     chmod +x /usr/sbin/policy-rc.d
     trap "rm /usr/sbin/policy-rc.d" RETURN
     yum install -y docker
-    echo 'OPTIONS="--selinux-enabled --log-driver=journald --signature-verification=false --iptables=false --ip-masq=false"' >> /etc/sysconfig/docker
+    echo 'OPTIONS="--log-driver=journald --signature-verification=false --iptables=false --ip-masq=false"' >> /etc/sysconfig/docker
     systemctl daemon-reload
     systemctl enable docker
     systemctl start docker
 }
 
 install_configure_docker
 
+# Get docker cgroup driver for kubelet configuration
+CG_DRIVER=$(docker info --format '{{.CgroupDriver}}')
+
 # Write the cloud.conf so that the kubelet can use it.
 echo $OPENSTACK_CLOUD_PROVIDER_CONF | base64 -d > /etc/kubernetes/cloud.conf
 mkdir /etc/certs
@@ -68,7 +75,7 @@ nodeRegistration:
 EOF
 
 cat <<EOF > /etc/default/kubelet
-KUBELET_KUBEADM_EXTRA_ARGS=--cgroup-driver=systemd
+KUBELET_KUBEADM_EXTRA_ARGS=--cgroup-driver=$CG_DRIVER
 EOF
 systemctl enable kubelet.service
 
@@ -84,4 +91,3 @@ done
 
 echo done.
 ) 2>&1 | tee /var/log/startup.log
-

cmd/clusterctl/examples/openstack/provider-component/user-data/ubuntu/templates/master-user-data.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 set -x
 (
@@ -205,4 +205,3 @@ done
 kubectl --kubeconfig /etc/kubernetes/admin.conf apply -f https://docs.projectcalico.org/v3.5/getting-started/kubernetes/installation/hosted/kubernetes-datastore/calico-networking/1.7/calico.yaml
 echo done.
 ) 2>&1 | tee /var/log/startup.log
-

cmd/clusterctl/examples/openstack/provider-component/user-data/ubuntu/templates/worker-user-data.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 set -x
 (
@@ -109,7 +109,7 @@ Environment="KUBELET_DNS_ARGS=--cluster-dns=${CLUSTER_DNS_SERVER} --cluster-doma
 EOF
 systemctl daemon-reload
 systemctl restart kubelet.service
-systemctl disable ufw 
+systemctl disable ufw
 systemctl mask ufw
 
 kubeadm -v 10 join --ignore-preflight-errors=all --config /etc/kubernetes/kubeadm_config.yaml
@@ -119,4 +119,3 @@ for tries in $(seq 1 60); do
 done
 echo done.
 ) 2>&1 | tee /var/log/startup.log
-