2 ################################################################################
3 # Copyright (c) 2019 AT&T Intellectual Property. #
5 # Licensed under the Apache License, Version 2.0 (the "License"); #
6 # you may not use this file except in compliance with the License. #
7 # You may obtain a copy of the License at #
9 # http://www.apache.org/licenses/LICENSE-2.0 #
11 # Unless required by applicable law or agreed to in writing, software #
12 # distributed under the License is distributed on an "AS IS" BASIS, #
13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. #
14 # See the License for the specific language governing permissions and #
15 # limitations under the License. #
16 ################################################################################
19 # first parameter: number of expected running pods
20 # second parameter: namespace (all-namespaces means all namespaces)
21 # third parameter: [optional] keyword
22 wait_for_pods_running () {
24 CMD="kubectl get pods --all-namespaces "
25 if [ "$NS" != "all-namespaces" ]; then
26 CMD="kubectl get pods -n $2 "
29 if [ "$#" == "3" ]; then
30 KEYWORD="${3}.*Running"
33 CMD2="$CMD | grep \"$KEYWORD\" | wc -l"
34 NUMPODS=$(eval "$CMD2")
35 echo "waiting for $NUMPODS/$1 pods running in namespace [$NS] with keyword [$KEYWORD]"
36 while [ $NUMPODS -lt $1 ]; do
38 NUMPODS=$(eval "$CMD2")
39 echo "> waiting for $NUMPODS/$1 pods running in namespace [$NS] with keyword [$KEYWORD]"
44 # first parameter: interface name
46 # enable ipv6 interface
47 # standard Ubuntu cloud image does not have dual interface configuration or ipv6
49 if ifconfig -a $IPv6IF; then
50 echo "" >> /etc/network/interfaces.d/50-cloud-init.cfg
51 echo "allow-hotplug ${IPv6IF}" >> /etc/network/interfaces.d/50-cloud-init.cfg
52 echo "iface ${IPv6IF} inet6 auto" >> /etc/network/interfaces.d/50-cloud-init.cfg
57 echo "k8s_vm_install.sh"
59 export DEBIAN_FRONTEND=noninteractive
60 echo "__host_private_ip_addr__ $(hostname)" >> /etc/hosts
67 echo "__docker_version__" > /opt/config/docker_version.txt
68 echo "__k8s_version__" > /opt/config/k8s_version.txt
69 echo "__k8s_cni_version__" > /opt/config/k8s_cni_version.txt
70 echo "__helm_version__" > /opt/config/helm_version.txt
71 echo "__host_private_ip_addr__" > /opt/config/host_private_ip_addr.txt
72 echo "__k8s_mst_floating_ip_addr__" > /opt/config/k8s_mst_floating_ip_addr.txt
73 echo "__k8s_mst_private_ip_addr__" > /opt/config/k8s_mst_private_ip_addr.txt
74 echo "__mtu__" > /opt/config/mtu.txt
75 echo "__cinder_volume_id__" > /opt/config/cinder_volume_id.txt
76 echo "__stack_name__" > /opt/config/stack_name.txt
78 # assume we are setting up AUX cluster VM if hostname contains "aux"
80 if [[ $(cat /opt/config/stack_name.txt) == *aux* ]]; then
88 modprobe -- nf_conntrack_ipv4
89 modprobe -- nf_conntrack_ipv6
90 modprobe -- nf_conntrack_proto_sctp
92 if [ ! -z "$IPV6IF" ]; then
97 #SWAPFILES=$(grep swap /etc/fstab | sed '/^[ \t]*#/ d' |cut -f1 -d' ')
98 SWAPFILES=$(grep swap /etc/fstab | sed '/^[ \t]*#/ d' | sed 's/[\t ]/ /g' | tr -s " " | cut -f1 -d' ')
99 if [ ! -z $SWAPFILES ]; then
100 for SWAPFILE in $SWAPFILES
102 if [ ! -z $SWAPFILE ]; then
103 echo "disabling swap file $SWAPFILE"
104 if [[ $SWAPFILE == UUID* ]]; then
105 UUID=$(echo $SWAPFILE | cut -f2 -d'=')
110 sed -i "\%$SWAPFILE%d" /etc/fstab
116 DOCKERV=$(cat /opt/config/docker_version.txt)
117 KUBEV=$(cat /opt/config/k8s_version.txt)
118 KUBECNIV=$(cat /opt/config/k8s_cni_version.txt)
120 KUBEVERSION="${KUBEV}-00"
121 CNIVERSION="${KUBECNIV}-00"
122 DOCKERVERSION="${DOCKERV}"
124 # adjust package version tag
125 UBUNTU_RELEASE=$(lsb_release -r | sed 's/^[a-zA-Z:\t ]\+//g')
126 if [[ ${UBUNTU_RELEASE} == 16.* ]]; then
127 echo "Installing on Ubuntu $UBUNTU_RELEASE (Xenial Xerus) host"
128 if [ ! -z "${DOCKERV}" ]; then
129 DOCKERVERSION="${DOCKERV}-0ubuntu1~16.04.5"
131 elif [[ ${UBUNTU_RELEASE} == 18.* ]]; then
132 echo "Installing on Ubuntu $UBUNTU_RELEASE (Bionic Beaver)"
133 if [ ! -z "${DOCKERV}" ]; then
134 DOCKERVERSION="${DOCKERV}-0ubuntu1~18.04.5"
137 echo "Unsupported Ubuntu release ($UBUNTU_RELEASE) detected. Exit."
142 curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key add -
143 echo 'deb http://apt.kubernetes.io/ kubernetes-xenial main' > /etc/apt/sources.list.d/kubernetes.list
145 # tell apt to retry 3 times if failed
146 mkdir -p /etc/apt/apt.conf.d
147 echo "APT::Acquire::Retries \"3\";" > /etc/apt/apt.conf.d/80-retries
149 # install low latency kernel, docker.io, and kubernetes
151 RES=$(apt-get install -y virt-what curl jq netcat 2>&1)
152 if [[ $RES == */var/lib/dpkg/lock* ]]; then
153 echo "Fail to get dpkg lock. Wait for any other package installation"
154 echo "process to finish, then rerun this script"
158 if ! echo $(virt-what) | grep "virtualbox"; then
159 # this version of low latency kernel causes virtualbox VM to hang.
160 # install if identifying the VM not being a virtualbox VM.
161 apt-get install -y linux-image-4.15.0-45-lowlatency
165 if [ -z ${DOCKERVERSION} ]; then
166 apt-get install -y --allow-change-held-packages --allow-unauthenticated --ignore-hold docker.io
168 apt-get install -y --allow-change-held-packages --allow-unauthenticated --ignore-hold docker.io=${DOCKERVERSION}
170 systemctl enable docker.service
172 if [ -z ${CNIVERSION} ]; then
173 apt-get install -y --allow-change-held-packages --allow-unauthenticated --ignore-hold kubernetes-cni
175 apt-get install -y --allow-change-held-packages --allow-unauthenticated --ignore-hold kubernetes-cni=${CNIVERSION}
178 if [ -z ${KUBEVERSION} ]; then
179 apt-get install -y --allow-change-held-packages --allow-unauthenticated --ignore-hold kubeadm kubelet kubectl
181 apt-get install -y --allow-change-held-packages --allow-unauthenticated --ignore-hold kubeadm=${KUBEVERSION} kubelet=${KUBEVERSION} kubectl=${KUBEVERSION}
184 apt-mark hold docker.io kubernetes-cni kubelet kubeadm kubectl
187 # test access to k8s docker registry
188 kubeadm config images pull --kubernetes-version=${KUBEV}
192 # non-master nodes have hostnames ending with -[0-9][0-9]
193 if [ "$NODETYPE" == "master" ]; then
194 # below are steps for initializating master node, only run on the master node.
195 # minion node join will be triggered from the caller of the stack creation as ssh command.
197 # create kubenetes config file
198 if [[ ${KUBEV} == 1.13.* ]]; then
199 cat <<EOF >/root/config.yaml
200 apiVersion: kubeadm.k8s.io/v1alpha3
201 kubernetesVersion: v${KUBEV}
202 kind: ClusterConfiguration
204 feature-gates: SCTPSupport=true
206 dnsDomain: cluster.local
207 podSubnet: 10.244.0.0/16
208 serviceSubnet: 10.96.0.0/12
210 apiVersion: kubeproxy.config.k8s.io/v1alpha1
211 kind: KubeProxyConfiguration
215 elif [[ ${KUBEV} == 1.14.* ]]; then
216 cat <<EOF >/root/config.yaml
217 apiVersion: kubeadm.k8s.io/v1beta1
218 kubernetesVersion: v${KUBEV}
219 kind: ClusterConfiguration
221 feature-gates: SCTPSupport=true
223 dnsDomain: cluster.local
224 podSubnet: 10.244.0.0/16
225 serviceSubnet: 10.96.0.0/12
227 apiVersion: kubeproxy.config.k8s.io/v1alpha1
228 kind: KubeProxyConfiguration
231 elif [[ ${KUBEV} == 1.16.* ]]; then
232 cat <<EOF >/root/config.yaml
233 apiVersion: kubeadm.k8s.io/v1beta2
234 kubernetesVersion: v${KUBEV}
235 kind: ClusterConfiguration
238 feature-gates: SCTPSupport=true
240 dnsDomain: cluster.local
241 podSubnet: 10.244.0.0/16
242 serviceSubnet: 10.96.0.0/12
244 apiVersion: kubeproxy.config.k8s.io/v1alpha1
245 kind: KubeProxyConfiguration
249 echo "Unsupported Kubernetes version requested. Bail."
253 # create a RBAC file for helm (tiller)
254 cat <<EOF > /root/rbac-config.yaml
259 namespace: kube-system
261 apiVersion: rbac.authorization.k8s.io/v1
262 kind: ClusterRoleBinding
266 apiGroup: rbac.authorization.k8s.io
270 - kind: ServiceAccount
272 namespace: kube-system
276 # start cluster (make sure CIDR is enabled with the flag)
277 kubeadm init --config /root/config.yaml
279 # set up kubectl credential and config
283 cp -i /etc/kubernetes/admin.conf /root/.kube/config
284 chown root:root /root/.kube/config
286 # at this point we should be able to use kubectl
287 kubectl get pods --all-namespaces
290 if [[ ${KUBEV} == 1.16.* ]]; then
291 kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml
293 kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/bc79dd1505b0c8681ece4de4c0d86c5cd2643275/Documentation/kube-flannel.yml
296 # waiting for all 8 kube-system pods to be in running state
297 # (at this point, minions have not joined yet)
298 wait_for_pods_running 8 kube-system
300 # if running a single node cluster, need to enable master node to run pods
301 kubectl taint nodes --all node-role.kubernetes.io/master-
304 # install RBAC for Helm
305 kubectl create -f rbac-config.yaml
308 HELMV=$(cat /opt/config/helm_version.txt)
313 wget https://storage.googleapis.com/kubernetes-helm/helm-v${HELMVERSION}-linux-amd64.tar.gz
314 tar -xvf helm-v${HELMVERSION}-linux-amd64.tar.gz
315 mv linux-amd64/helm /usr/local/bin/helm
318 if [[ ${KUBEV} == 1.16.* ]]; then
319 # helm init uses API extensions/v1beta1 which is depreciated by Kubernetes
320 # 1.16.0. Until upstream (helm) provides a fix, this is the work-around.
321 helm init --service-account tiller --override spec.selector.matchLabels.'name'='tiller',spec.selector.matchLabels.'app'='helm' --output yaml | sed 's@apiVersion: extensions/v1beta1@apiVersion: apps/v1@' | kubectl apply -f -
323 helm init --service-account tiller
325 export HELM_HOME="/root/.helm"
327 # waiting for tiller pod to be in running state
328 wait_for_pods_running 1 kube-system tiller-deploy
329 while ! helm version; do
330 echo "Waiting for Helm to be ready"
334 echo "Preparing a master node (lowser ID) for using local FS for PV"
335 PV_NODE_NAME=$(kubectl get nodes |grep master | cut -f1 -d' ' | sort | head -1)
336 kubectl label --overwrite nodes $PV_NODE_NAME local-storage=enable
337 if [ "$PV_NODE_NAME" == "$(hostname)" ]; then
338 mkdir -p /opt/data/dashboard-data
341 echo "Done with master node setup"
345 # add rancodev CI tool hostnames
346 if [[ ! -z "${__RUNRICENV_GERRIT_IP__}" && ! -z "${__RUNRICENV_GERRIT_HOST__}" ]]; then
347 echo "${__RUNRICENV_GERRIT_IP__} ${__RUNRICENV_GERRIT_HOST__}" >> /etc/hosts
349 if [[ ! -z "${__RUNRICENV_DOCKER_IP__}" && ! -z "${__RUNRICENV_DOCKER_HOST__}" ]]; then
350 echo "${__RUNRICENV_DOCKER_IP__} ${__RUNRICENV_DOCKER_HOST__}" >> /etc/hosts
352 if [[ ! -z "${__RUNRICENV_HELMREPO_IP__}" && ! -z "${__RUNRICENV_HELMREPO_HOST__}" ]]; then
353 echo "${__RUNRICENV_HELMREPO_IP__} ${__RUNRICENV_HELMREPO_HOST__}" >> /etc/hosts
356 if [[ "${__RUNRICENV_HELMREPO_CERT_LEN__}" -gt "100" ]]; then
357 cat <<EOF >/etc/ca-certificates/update.d/helm.crt
358 ${__RUNRICENV_HELMREPO_CERT__}
362 # add cert for accessing docker registry in Azure
363 if [[ "${__RUNRICENV_DOCKER_CERT_LEN__}" -gt "100" ]]; then
364 mkdir -p /etc/docker/certs.d/${__RUNRICENV_DOCKER_HOST__}:${__RUNRICENV_DOCKER_PORT__}
365 cat <<EOF >/etc/docker/ca.crt
366 ${__RUNRICENV_DOCKER_CERT__}
368 cp /etc/docker/ca.crt /etc/docker/certs.d/${__RUNRICENV_DOCKER_HOST__}:${__RUNRICENV_DOCKER_PORT__}/ca.crt
370 service docker restart
371 systemctl enable docker.service
372 docker login -u ${__RUNRICENV_DOCKER_USER__} -p ${__RUNRICENV_DOCKER_PASS__} ${__RUNRICENV_DOCKER_HOST__}:${__RUNRICENV_DOCKER_PORT__}
373 docker pull ${__RUNRICENV_DOCKER_HOST__}:${__RUNRICENV_DOCKER_PORT__}/whoami:0.0.1
376 if [ "$(uname -r)" != "4.15.0-45-lowlatency" ]; then reboot; fi