3 # Licensed under the Apache License, Version 2.0 (the "License");
4 # you may not use this file except in compliance with the License.
5 # You may obtain a copy of the License at
7 # http://www.apache.org/licenses/LICENSE-2.0
9 # Unless required by applicable law or agreed to in writing, software
10 # distributed under the License is distributed on an "AS IS" BASIS,
11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 # See the License for the specific language governing permissions and
13 # limitations under the License.
18 #installs kubernetes packages
19 function install_kube
() {
20 [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of
function
22 # To check other available versions, run the following command
23 # curl -s https://packages.cloud.google.com/apt/dists/kubernetes-xenial/main/binary-amd64/Packages | grep Version | awk '{print $2}'
24 sudo apt-get update
&& sudo apt-get
install -y apt-transport-https
25 sudo apt-get update
&& sudo apt-get
install -y apt-transport-https
26 curl
-fsSL https
://packages.cloud.google.com
/apt
/doc
/apt-key.gpg | sudo apt-key add
-
27 sudo add-apt-repository
"deb https://apt.kubernetes.io/ kubernetes-xenial main"
29 echo "Installing Kubernetes Packages ..."
30 sudo apt-get
install -y kubelet
=${K8S_VERSION} kubeadm=${K8S_VERSION} kubectl=${K8S_VERSION}
31 cat << EOF | sudo tee -a /etc/default/kubelet
32 KUBELET_EXTRA_ARGS="--cgroup-driver=cgroupfs"
34 sudo apt-mark hold kubelet kubeadm kubectl
35 [ -z "${DEBUG_INSTALL}" ] || DEBUG end of
function
38 #initializes kubernetes control plane
39 function init_kubeadm
() {
40 [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of
function
42 sudo
sed -i.bak
'/.*none.*swap/s/^\(.*\)$/#\1/g' /etc
/fstab
43 sudo kubeadm init
--config $1
45 [ -z "${DEBUG_INSTALL}" ] || DEBUG end of
function
48 function kube_config_dir
() {
49 [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of
function
50 K8S_MANIFEST_DIR
="/etc/kubernetes/manifests"
51 [ ! -d $K8S_MANIFEST_DIR ] && FATAL
"Cannot Install Kubernetes"
53 sudo
cp /etc
/kubernetes
/admin.conf
$HOME/.kube
/config
54 sudo chown $
(id
-u):$
(id
-g) $HOME/.kube
/config
55 [ -z "${DEBUG_INSTALL}" ] || DEBUG end of
function
58 #deploys flannel as daemonsets
59 function deploy_cni_provider
() {
60 [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of
function
61 CNI_DIR
="$(mktemp -d -q --tmpdir "flannel.XXXXXX
")"
62 trap 'rm -rf "${CNI_DIR}"' EXIT
63 wget
-q https
://raw.githubusercontent.com
/coreos
/flannel
/master
/Documentation
/kube-flannel.yml
-P $CNI_DIR
64 kubectl apply
-f $CNI_DIR
65 [ $?
-ne 0 ] && FATAL
"Cannot Install Flannel"
66 [ -z "${DEBUG_INSTALL}" ] || DEBUG end of
function
69 #taints K8s master node
70 function taint_master_node
() {
71 [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of
function
72 K8S_MASTER
=$
(kubectl get nodes |
awk '$3~/master/'|
awk '{print $1}')
73 kubectl taint node
$K8S_MASTER node-role.kubernetes.io
/master
:NoSchedule-
75 [ -z "${DEBUG_INSTALL}" ] || DEBUG end of
function
79 function install_helm
() {
80 [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of
function
83 # Helm is not installed. Install helm
84 echo "Helm is not installed, installing ..."
85 curl https
://get.helm.sh
/helm-v3.6
.3-linux-amd64.
tar.gz
--output helm-v3.6
.3.
tar.gz
86 tar -zxvf helm-v3.6
.3.
tar.gz
87 sudo
mv linux-amd64
/helm
/usr
/local
/bin
/helm
90 helm repo add stable https
://charts.helm.sh
/stable
93 [ -z "${DEBUG_INSTALL}" ] || DEBUG end of
function
96 function install_k8s_storageclass
() {
97 [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of
function
98 echo "Installing open-iscsi"
100 sudo apt-get
install open-iscsi
101 sudo systemctl
enable --now iscsid
102 OPENEBS_VERSION
="3.1.0"
103 echo "Installing OpenEBS"
104 helm repo add openebs https
://openebs.github.io
/charts
106 helm
install --create-namespace --namespace openebs openebs openebs
/openebs
--version ${OPENEBS_VERSION}
108 local storageclass_timeout
=400
110 local storageclass_ready
=""
111 echo "Waiting for storageclass"
112 while (( counter
< storageclass_timeout
))
114 kubectl get storageclass openebs-hostpath
&> /dev
/null
116 if [ $?
-eq 0 ] ; then
117 echo "Storageclass available"
118 storageclass_ready
="y"
121 counter
=$
((counter
+ 15))
125 [ -n "$storageclass_ready" ] || FATAL
"Storageclass not ready after $storageclass_timeout seconds. Cannot install openebs"
126 kubectl
patch storageclass openebs-hostpath
-p '{"metadata": {"annotations":{"storageclass.kubernetes.io/is-default-class":"true"}}}'
127 [ -z "${DEBUG_INSTALL}" ] || DEBUG end of
function
130 #installs metallb from helm
131 function install_helm_metallb
() {
132 [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of
function
133 echo "Installing MetalLB"
134 METALLB_VERSION
="0.11.0"
135 METALLB_IP_RANGE
="$DEFAULT_IP/32"
141 - $METALLB_IP_RANGE" | sudo
tee -a ${OSM_DOCKER_WORK_DIR}/metallb-config.yaml
142 helm repo add metallb https
://metallb.github.io
/metallb
144 helm
install --create-namespace --namespace metallb-system metallb metallb
/metallb
--version ${METALLB_VERSION} -f ${OSM_DOCKER_WORK_DIR}/metallb-config.yaml
145 [ -z "${DEBUG_INSTALL}" ] || DEBUG end of
function
148 #checks openebs and metallb readiness
149 function check_for_readiness
() {
150 [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of
function
151 # Default input values
152 sampling_period
=2 # seconds
153 time_for_readiness
=20 # seconds ready
154 time_for_failure
=200 # seconds broken
155 OPENEBS_NAMESPACE
=openebs
156 METALLB_NAMESPACE
=metallb-system
157 # STACK_NAME=osm # By default, "osm"
159 # Equivalent number of samples
160 oks_threshold
=$
((time_for_readiness
/${sampling_period})) # No. ok samples to declare the system ready
161 failures_threshold
=$
((time_for_failure
/${sampling_period})) # No. nok samples to declare the system broken
165 ####################################################################################
166 # Loop to check system readiness
167 ####################################################################################
168 while [[ (${failures_in_a_row} -lt ${failures_threshold}) && (${oks_in_a_row} -lt ${oks_threshold}) ]]
171 OPENEBS_STATE
=$
(kubectl get pod
-n ${OPENEBS_NAMESPACE} --no-headers 2>&1)
172 OPENEBS_READY
=$
(echo "${OPENEBS_STATE}" |
awk '$2=="1/1" || $2=="2/2" {printf ("%s\t%s\t\n", $1, $2)}')
173 OPENEBS_NOT_READY
=$
(echo "${OPENEBS_STATE}" |
awk '$2!="1/1" && $2!="2/2" {printf ("%s\t%s\t\n", $1, $2)}')
174 COUNT_OPENEBS_READY
=$
(echo "${OPENEBS_READY}"|
grep -v -e '^$' |
wc -l)
175 COUNT_OPENEBS_NOT_READY
=$
(echo "${OPENEBS_NOT_READY}" |
grep -v -e '^$' |
wc -l)
178 METALLB_STATE
=$
(kubectl get pod
-n ${METALLB_NAMESPACE} --no-headers 2>&1)
179 METALLB_READY
=$
(echo "${METALLB_STATE}" |
awk '$2=="1/1" || $2=="2/2" {printf ("%s\t%s\t\n", $1, $2)}')
180 METALLB_NOT_READY
=$
(echo "${METALLB_STATE}" |
awk '$2!="1/1" && $2!="2/2" {printf ("%s\t%s\t\n", $1, $2)}')
181 COUNT_METALLB_READY
=$
(echo "${METALLB_READY}" |
grep -v -e '^$' |
wc -l)
182 COUNT_METALLB_NOT_READY
=$
(echo "${METALLB_NOT_READY}" |
grep -v -e '^$' |
wc -l)
185 if [[ $
((${COUNT_OPENEBS_NOT_READY}+${COUNT_METALLB_NOT_READY})) -eq 0 ]]
189 echo -ne ===\
> Successful checks
: "${oks_in_a_row}"/${oks_threshold}\\r
192 ((++failures_in_a_row
))
195 echo Bootstraping...
"${failures_in_a_row}" checks of
${failures_threshold}
197 # Reports failed pods in OpenEBS
198 if [[ "${COUNT_OPENEBS_NOT_READY}" -ne 0 ]]
200 echo "OpenEBS: Waiting for ${COUNT_OPENEBS_NOT_READY} of $((${COUNT_OPENEBS_NOT_READY}+${COUNT_OPENEBS_READY})) pods to be ready:"
201 echo "${OPENEBS_NOT_READY}"
205 # Reports failed statefulsets
206 if [[ "${COUNT_METALLB_NOT_READY}" -ne 0 ]]
208 echo "MetalLB: Waiting for ${COUNT_METALLB_NOT_READY} of $((${COUNT_METALLB_NOT_READY}+${COUNT_METALLB_READY})) pods to be ready:"
209 echo "${METALLB_NOT_READY}"
214 #------------ NEXT SAMPLE
215 sleep ${sampling_period}
218 ####################################################################################
220 ####################################################################################
221 if [[ (${failures_in_a_row} -ge ${failures_threshold}) ]]
224 FATAL
"K8S CLUSTER IS BROKEN"
227 echo "K8S CLUSTER IS READY"
229 [ -z "${DEBUG_INSTALL}" ] || DEBUG end of
function
232 #removes osm deployments and services
233 function remove_k8s_namespace
() {
234 [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of
function
236 [ -z "${DEBUG_INSTALL}" ] || DEBUG end of
function
240 while getopts ":D:d:i:-: " o
; do
243 DEFAULT_IP
="${OPTARG}"
246 OSM_DOCKER_WORK_DIR
="${OPTARG}"
249 OSM_DEVOPS
="${OPTARG}"
252 [ "${OPTARG}" == "debug" ] && DEBUG_INSTALL
="y" && continue
253 echo -e "Invalid option: '--$OPTARG'\n" >&2
257 echo "Option -$OPTARG requires an argument" >&2
261 echo -e "Invalid option: '-$OPTARG'\n" >&2
270 source $OSM_DEVOPS/common
/logging
271 source $OSM_DEVOPS/common
/track
273 echo "DEBUG_INSTALL=$DEBUG_INSTALL"
274 echo "DEFAULT_IP=$DEFAULT_IP"
275 echo "OSM_DEVOPS=$OSM_DEVOPS"
276 echo "OSM_DOCKER_WORK_DIR=$OSM_DOCKER_WORK_DIR"
277 echo "INSTALL_K8S_MONITOR=$INSTALL_K8S_MONITOR"
282 track k8scluster install_k8s_ok
283 init_kubeadm
$OSM_DOCKER_WORK_DIR/cluster-config.yaml
285 track k8scluster init_k8s_ok
286 if [ -n "$INSTALL_K8S_MONITOR" ]; then
287 # uninstall OSM MONITORING
288 uninstall_k8s_monitoring
289 track k8scluster uninstall_k8s_monitoring_ok
291 #remove old namespace
292 remove_k8s_namespace osm
296 track k8scluster install_helm_ok
297 install_k8s_storageclass
298 track k8scluster k8s_storageclass_ok
300 track k8scluster k8s_metallb_ok
302 track k8scluster k8s_ready_ok