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.
20 # installs kubernetes packages
21 function install_kube
() {
22 [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of
function
23 # Kubernetes releases can be found here: https://kubernetes.io/releases/
24 # To check other available versions, run the following command
25 # curl -s https://packages.cloud.google.com/apt/dists/kubernetes-xenial/main/binary-amd64/Packages | grep Version | awk '{print $2}'
26 sudo apt-get
-y update
&& sudo apt-get
install -y apt-transport-https ca-certificates curl
27 curl
-fsSL https
://packages.cloud.google.com
/apt
/doc
/apt-key.gpg | sudo gpg
--dearmor -o /etc
/apt
/keyrings
/kubernetes-archive-keyring.gpg
28 echo "deb [signed-by=/etc/apt/keyrings/kubernetes-archive-keyring.gpg] https://apt.kubernetes.io/ kubernetes-xenial main" | sudo
tee /etc
/apt
/sources.list.d
/kubernetes.list
29 sudo apt-get
-y update
30 echo "Installing Kubernetes Packages ..."
31 sudo apt-get
install -y kubelet
=${K8S_VERSION} kubeadm=${K8S_VERSION} kubectl=${K8S_VERSION}
32 sudo apt-mark hold kubelet kubeadm kubectl
33 [ -z "${DEBUG_INSTALL}" ] || DEBUG end of
function
36 # check and track kube packages installation
37 function check_and_track_kube_install
() {
38 [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of
function
39 kubelet_version
=$
(dpkg
-s kubelet|
grep Version|
awk '{print $2}')
40 [ -n "${kubelet_version}" ] || FATAL_TRACK k8scluster
"Kubelet was not installed."
41 kubeadm_version
=$
(dpkg
-s kubeadm|
grep Version|
awk '{print $2}')
42 [ -n "${kubeadm_version}" ] || FATAL_TRACK k8scluster
"Kubeadm was not installed."
43 kubectl_version
=$
(dpkg
-s kubectl|
grep Version|
awk '{print $2}')
44 [ -n "${kubectl_version}" ] || FATAL_TRACK k8scluster
"Kubectl was not installed."
45 track k8scluster install_k8s_ok none none none kubelet
${kubelet_version} none none kubeadm ${kubeadm_version} none none kubectl ${kubectl_version} none none
46 [ -z "${DEBUG_INSTALL}" ] || DEBUG end of
function
49 # initializes kubernetes control plane
50 function init_kubeadm
() {
51 [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of
function
53 sudo
sed -i.bak
'/.*none.*swap/s/^\(.*\)$/#\1/g' /etc
/fstab
54 sudo kubeadm init
--config $1 --dry-run || FATAL_TRACK k8scluster
"kubeadm init dry-run failed"
55 sudo kubeadm init
--config $1
57 [ -z "${DEBUG_INSTALL}" ] || DEBUG end of
function
60 # Initializes kubeconfig file
61 function kube_config_dir
() {
62 [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of
function
63 K8S_MANIFEST_DIR
="/etc/kubernetes/manifests"
64 [ ! -d $K8S_MANIFEST_DIR ] && FATAL_TRACK k8scluster
"Kubernetes folder $K8S_MANIFEST_DIR was not found"
66 sudo
cp /etc
/kubernetes
/admin.conf
$HOME/.kube
/config
67 sudo chown $
(id
-u):$
(id
-g) $HOME/.kube
/config
68 [ -z "${DEBUG_INSTALL}" ] || DEBUG end of
function
71 # test kubernetes installation
72 function check_and_track_init_k8s
() {
73 [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of
function
74 echo "Reading existing namespaces"
75 kubectl get ns || FATAL_TRACK k8scluster
"Failed getting namespaces"
76 track k8scluster init_k8s_ok
77 [ -z "${DEBUG_INSTALL}" ] || DEBUG end of
function
80 # deploys flannel as daemonsets
81 function deploy_cni_provider
() {
82 [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of
function
83 CNI_DIR
="$(mktemp -d -q --tmpdir "flannel.XXXXXX
")"
84 trap 'rm -rf "${CNI_DIR}"' EXIT
85 KUBE_FLANNEL_FILE_URL
="https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml"
86 wget
--retry-on-host-error --retry-on-http-error 404,429,503 --tries=5 "${KUBE_FLANNEL_FILE_URL}" -P $CNI_DIR
87 [ ! -f $CNI_DIR/kube-flannel.yml
] && FATAL_TRACK k8scluster
"Cannot Install Flannel because $CNI_DIR/kube-flannel.yml was not found. Maybe the file ${KUBE_FLANNEL_FILE_URL} is temporarily not accessible"
88 kubectl apply
-f $CNI_DIR
89 [ $?
-ne 0 ] && FATAL_TRACK k8scluster
"Cannot Install Flannel"
90 [ -z "${DEBUG_INSTALL}" ] || DEBUG end of
function
93 # taints K8s master node
94 function taint_master_node
() {
95 [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of
function
96 K8S_MASTER
=$
(kubectl get nodes |
awk '$3~/control-plane/'|
awk '{print $1; exit}')
97 kubectl taint node
$K8S_MASTER node-role.kubernetes.io
/control-plane
:NoSchedule-
99 [ -z "${DEBUG_INSTALL}" ] || DEBUG end of
function
102 # check and track kube packages installation
103 function check_and_track_k8s_ready_before_helm
() {
104 [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of
function
105 kubectl get events || FATAL_TRACK k8scluster
"Failed getting events"
106 track k8scluster k8s_ready_before_helm
107 [ -z "${DEBUG_INSTALL}" ] || DEBUG end of
function
111 #Helm releases can be found here: https://github.com/helm/helm/releases
112 function install_helm
() {
113 [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of
function
114 HELM_VERSION
="v3.11.3"
115 if ! [[ "$(helm version --short 2>/dev/null)" =~ ^v3.
* ]]; then
116 # Helm is not installed. Install helm
117 echo "Helm3 is not installed, installing ..."
118 curl https
://get.helm.sh
/helm-
${HELM_VERSION}-linux-amd64.
tar.gz
--output helm-
${HELM_VERSION}.
tar.gz
119 tar -zxvf helm-
${HELM_VERSION}.
tar.gz
120 sudo
mv linux-amd64
/helm
/usr
/local
/bin
/helm
122 rm helm-
${HELM_VERSION}.
tar.gz
124 echo "Helm3 is already installed. Skipping installation..."
126 helm version || FATAL_TRACK k8scluster
"Could not obtain helm version. Maybe helm client was not installed"
127 helm repo add stable https
://charts.helm.sh
/stable || FATAL_TRACK k8scluster
"Helm repo stable could not be added"
128 helm repo update || FATAL_TRACK k8scluster
"Helm repo stable could not be updated"
129 [ -z "${DEBUG_INSTALL}" ] || DEBUG end of
function
132 function install_k8s_storageclass
() {
133 [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of
function
134 # Openebs versions can be found here: https://github.com/openebs/openebs/releases
135 OPENEBS_VERSION
="3.7.0"
136 echo "Installing OpenEBS"
137 helm repo add openebs https
://openebs.github.io
/charts
139 helm
install --create-namespace --namespace openebs openebs openebs
/openebs
--version ${OPENEBS_VERSION}
141 local storageclass_timeout
=400
143 local storageclass_ready
=""
144 echo "Waiting for storageclass"
145 while (( counter
< storageclass_timeout
))
147 kubectl get storageclass openebs-hostpath
&> /dev
/null
149 if [ $?
-eq 0 ] ; then
150 echo "Storageclass available"
151 storageclass_ready
="y"
154 counter
=$
((counter
+ 15))
158 [ -n "$storageclass_ready" ] || FATAL_TRACK k8scluster
"Storageclass not ready after $storageclass_timeout seconds. Cannot install openebs"
159 kubectl
patch storageclass openebs-hostpath
-p '{"metadata": {"annotations":{"storageclass.kubernetes.io/is-default-class":"true"}}}'
160 [ -z "${DEBUG_INSTALL}" ] || DEBUG end of
function
163 #installs metallb from helm
164 function install_helm_metallb
() {
165 [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of
function
166 echo "Installing MetalLB"
167 METALLB_VERSION
="0.13.10"
168 helm repo add metallb https
://metallb.github.io
/metallb
170 helm
install --create-namespace --namespace metallb-system metallb metallb
/metallb
--version ${METALLB_VERSION}
171 [ -z "${DEBUG_INSTALL}" ] || DEBUG end of
function
174 function configure_ipaddresspool_metallb
() {
175 [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of
function
176 echo "Creating IP address pool manifest: ${OSM_CLUSTER_WORK_DIR}/metallb-ipaddrpool.yaml"
177 METALLB_IP_RANGE
="$DEFAULT_IP/32"
178 echo "apiVersion: metallb.io/v1beta1
182 namespace: metallb-system
185 - ${METALLB_IP_RANGE}" | sudo
tee -a ${OSM_CLUSTER_WORK_DIR}/metallb-ipaddrpool.yaml
186 echo "Applying IP address pool manifest: kubectl apply -f ${OSM_CLUSTER_WORK_DIR}/metallb-ipaddrpool.yaml"
187 kubectl apply
-f ${OSM_CLUSTER_WORK_DIR}/metallb-ipaddrpool.yaml || FATAL_TRACK k8scluster
"Cannot create IP address Pool in MetalLB"
188 [ -z "${DEBUG_INSTALL}" ] || DEBUG end of
function
191 #installs cert-manager
192 function install_helm_certmanager
() {
193 [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of
function
194 echo "Installing cert-manager"
195 CERTMANAGER_VERSION
="v1.9.1"
196 helm repo add jetstack https
://charts.jetstack.io
198 helm
install cert-manager
--create-namespace --namespace cert-manager jetstack
/cert-manager \
199 --version ${CERTMANAGER_VERSION} --set installCRDs
=true
--set prometheus.enabled
=false \
200 --set clusterResourceNamespace
=osm \
201 --set extraArgs
="{--enable-certificate-owner-ref=true}"
202 [ -z "${DEBUG_INSTALL}" ] || DEBUG end of
function
205 #checks openebs and metallb readiness
206 function check_for_readiness
() {
207 [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of
function
208 # Default input values
209 sampling_period
=2 # seconds
210 time_for_readiness
=20 # seconds ready
211 time_for_failure
=200 # seconds broken
212 OPENEBS_NAMESPACE
=openebs
213 METALLB_NAMESPACE
=metallb-system
214 # STACK_NAME=osm # By default, "osm"
216 # Equivalent number of samples
217 oks_threshold
=$
((time_for_readiness
/${sampling_period})) # No. ok samples to declare the system ready
218 failures_threshold
=$
((time_for_failure
/${sampling_period})) # No. nok samples to declare the system broken
222 ####################################################################################
223 # Loop to check system readiness
224 ####################################################################################
225 while [[ (${failures_in_a_row} -lt ${failures_threshold}) && (${oks_in_a_row} -lt ${oks_threshold}) ]]
228 OPENEBS_STATE
=$
(kubectl get pod
-n ${OPENEBS_NAMESPACE} --no-headers 2>&1)
229 OPENEBS_READY
=$
(echo "${OPENEBS_STATE}" |
awk '$2=="1/1" || $2=="2/2" {printf ("%s\t%s\t\n", $1, $2)}')
230 OPENEBS_NOT_READY
=$
(echo "${OPENEBS_STATE}" |
awk '$2!="1/1" && $2!="2/2" {printf ("%s\t%s\t\n", $1, $2)}')
231 COUNT_OPENEBS_READY
=$
(echo "${OPENEBS_READY}"|
grep -v -e '^$' |
wc -l)
232 COUNT_OPENEBS_NOT_READY
=$
(echo "${OPENEBS_NOT_READY}" |
grep -v -e '^$' |
wc -l)
235 METALLB_STATE
=$
(kubectl get pod
-n ${METALLB_NAMESPACE} --no-headers 2>&1)
236 METALLB_READY
=$
(echo "${METALLB_STATE}" |
awk '$2=="1/1" || $2=="4/4" {printf ("%s\t%s\t\n", $1, $2)}')
237 METALLB_NOT_READY
=$
(echo "${METALLB_STATE}" |
awk '$2!="1/1" && $2!="4/4" {printf ("%s\t%s\t\n", $1, $2)}')
238 COUNT_METALLB_READY
=$
(echo "${METALLB_READY}" |
grep -v -e '^$' |
wc -l)
239 COUNT_METALLB_NOT_READY
=$
(echo "${METALLB_NOT_READY}" |
grep -v -e '^$' |
wc -l)
241 # State of CertManager
242 CERTMANAGER_STATE
=$
(kubectl get pod
-n ${CERTMANAGER_NAMESPACE} --no-headers 2>&1)
243 CERTMANAGER_READY
=$
(echo "${CERTMANAGER_STATE}" |
awk '$2=="1/1" || $2=="2/2" {printf ("%s\t%s\t\n", $1, $2)}')
244 CERTMANAGER_NOT_READY
=$
(echo "${CERTMANAGER_STATE}" |
awk '$2!="1/1" && $2!="2/2" {printf ("%s\t%s\t\n", $1, $2)}')
245 COUNT_CERTMANAGER_READY
=$
(echo "${CERTMANAGER_READY}" |
grep -v -e '^$' |
wc -l)
246 COUNT_CERTMANAGER_NOT_READY
=$
(echo "${CERTMANAGER_NOT_READY}" |
grep -v -e '^$' |
wc -l)
249 if [[ $
((${COUNT_OPENEBS_NOT_READY}+${COUNT_METALLB_NOT_READY})) -eq 0 ]]
253 echo -ne ===\
> Successful checks
: "${oks_in_a_row}"/${oks_threshold}\\r
256 ((++failures_in_a_row
))
259 echo Bootstraping...
"${failures_in_a_row}" checks of
${failures_threshold}
261 # Reports failed pods in OpenEBS
262 if [[ "${COUNT_OPENEBS_NOT_READY}" -ne 0 ]]
264 echo "OpenEBS: Waiting for ${COUNT_OPENEBS_NOT_READY} of $((${COUNT_OPENEBS_NOT_READY}+${COUNT_OPENEBS_READY})) pods to be ready:"
265 echo "${OPENEBS_NOT_READY}"
269 # Reports failed pods in MetalLB
270 if [[ "${COUNT_METALLB_NOT_READY}" -ne 0 ]]
272 echo "MetalLB: Waiting for ${COUNT_METALLB_NOT_READY} of $((${COUNT_METALLB_NOT_READY}+${COUNT_METALLB_READY})) pods to be ready:"
273 echo "${METALLB_NOT_READY}"
277 # Reports failed pods in CertManager
278 if [[ "${COUNT_CERTMANAGER_NOT_READY}" -ne 0 ]]
280 echo "CertManager: Waiting for ${COUNT_CERTMANAGER_NOT_READY} of $((${COUNT_CERTMANAGER_NOT_READY}+${COUNT_CERTMANAGER_READY})) pods to be ready:"
281 echo "${CERTMANAGER_NOT_READY}"
286 #------------ NEXT SAMPLE
287 sleep ${sampling_period}
290 ####################################################################################
292 ####################################################################################
293 if [[ (${failures_in_a_row} -ge ${failures_threshold}) ]]
296 FATAL_TRACK k8scluster
"K8S CLUSTER IS BROKEN"
299 echo "K8S CLUSTER IS READY"
301 [ -z "${DEBUG_INSTALL}" ] || DEBUG end of
function
304 #removes osm deployments and services
305 function remove_k8s_namespace
() {
306 [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of
function
307 echo "Deleting existing namespace $1: kubectl delete ns $1"
308 kubectl delete ns
$1 2>/dev
/null
309 [ -z "${DEBUG_INSTALL}" ] || DEBUG end of
function
313 while getopts ":D:d:i:-: " o
; do
316 DEFAULT_IP
="${OPTARG}"
319 OSM_CLUSTER_WORK_DIR
="${OPTARG}"
322 OSM_DEVOPS
="${OPTARG}"
325 [ "${OPTARG}" == "debug" ] && DEBUG_INSTALL
="y" && continue
326 echo -e "Invalid option: '--$OPTARG'\n" >&2
330 echo "Option -$OPTARG requires an argument" >&2
334 echo -e "Invalid option: '-$OPTARG'\n" >&2
343 source $OSM_DEVOPS/common
/logging
344 source $OSM_DEVOPS/common
/track
346 echo "DEBUG_INSTALL=$DEBUG_INSTALL"
347 echo "DEFAULT_IP=$DEFAULT_IP"
348 echo "OSM_DEVOPS=$OSM_DEVOPS"
349 echo "OSM_CLUSTER_WORK_DIR=$OSM_CLUSTER_WORK_DIR"
350 echo "INSTALL_K8S_MONITOR=$INSTALL_K8S_MONITOR"
353 echo "Creating folders for installation"
354 [ ! -d "$OSM_CLUSTER_WORK_DIR" ] && sudo mkdir
-p $OSM_CLUSTER_WORK_DIR
355 echo "Copying kubeadm-config from $OSM_DEVOPS/installers/kubeadm-config.yaml to $OSM_CLUSTER_WORK_DIR/kubeadm-config.yaml"
356 sudo
cp -b $OSM_DEVOPS/installers
/kubeadm-config.yaml
$OSM_CLUSTER_WORK_DIR/kubeadm-config.yaml
359 check_and_track_kube_install
361 init_kubeadm
$OSM_CLUSTER_WORK_DIR/kubeadm-config.yaml
363 check_and_track_init_k8s
367 check_and_track_k8s_ready_before_helm
369 remove_k8s_namespace osm
372 track k8scluster install_helm_ok
374 install_k8s_storageclass
375 track k8scluster k8s_storageclass_ok
377 track k8scluster k8s_metallb_ok
378 install_helm_certmanager
379 track k8scluster k8s_certmanager_ok
381 track k8scluster k8s_ready_ok
382 configure_ipaddresspool_metallb