--- /dev/null
+#!/bin/bash
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+set +eux
+
+#installs kubernetes packages
+function install_kube() {
+ [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of function
+ K8S_VERSION=1.20.11-00
+ # To check other available versions, run the following command
+ # curl -s https://packages.cloud.google.com/apt/dists/kubernetes-xenial/main/binary-amd64/Packages | grep Version | awk '{print $2}'
+ sudo apt-get update && sudo apt-get install -y apt-transport-https
+ sudo apt-get update && sudo apt-get install -y apt-transport-https
+ curl -fsSL https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
+ sudo add-apt-repository "deb https://apt.kubernetes.io/ kubernetes-xenial main"
+ sudo apt-get update
+ echo "Installing Kubernetes Packages ..."
+ sudo apt-get install -y kubelet=${K8S_VERSION} kubeadm=${K8S_VERSION} kubectl=${K8S_VERSION}
+ sudo apt-mark hold kubelet kubeadm kubectl
+ [ -z "${DEBUG_INSTALL}" ] || DEBUG end of function
+}
+
+#initializes kubernetes control plane
+function init_kubeadm() {
+ [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of function
+ sudo swapoff -a
+ sudo sed -i.bak '/.*none.*swap/s/^\(.*\)$/#\1/g' /etc/fstab
+ sudo kubeadm init --config $1
+ sleep 5
+ [ -z "${DEBUG_INSTALL}" ] || DEBUG end of function
+}
+
+function kube_config_dir() {
+ [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of function
+ K8S_MANIFEST_DIR="/etc/kubernetes/manifests"
+ [ ! -d $K8S_MANIFEST_DIR ] && FATAL "Cannot Install Kubernetes"
+ mkdir -p $HOME/.kube
+ sudo cp /etc/kubernetes/admin.conf $HOME/.kube/config
+ sudo chown $(id -u):$(id -g) $HOME/.kube/config
+ [ -z "${DEBUG_INSTALL}" ] || DEBUG end of function
+}
+
+#deploys flannel as daemonsets
+function deploy_cni_provider() {
+ [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of function
+ CNI_DIR="$(mktemp -d -q --tmpdir "flannel.XXXXXX")"
+ trap 'rm -rf "${CNI_DIR}"' EXIT
+ wget -q https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml -P $CNI_DIR
+ kubectl apply -f $CNI_DIR
+ [ $? -ne 0 ] && FATAL "Cannot Install Flannel"
+ [ -z "${DEBUG_INSTALL}" ] || DEBUG end of function
+}
+
+#taints K8s master node
+function taint_master_node() {
+ [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of function
+ K8S_MASTER=$(kubectl get nodes | awk '$3~/master/'| awk '{print $1}')
+ kubectl taint node $K8S_MASTER node-role.kubernetes.io/master:NoSchedule-
+ sleep 5
+ [ -z "${DEBUG_INSTALL}" ] || DEBUG end of function
+}
+
+#Install Helm v3
+function install_helm() {
+ [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of function
+ helm > /dev/null 2>&1
+ if [ $? != 0 ] ; then
+ # Helm is not installed. Install helm
+ echo "Helm is not installed, installing ..."
+ curl https://get.helm.sh/helm-v3.6.3-linux-amd64.tar.gz --output helm-v3.6.3.tar.gz
+ tar -zxvf helm-v3.6.3.tar.gz
+ sudo mv linux-amd64/helm /usr/local/bin/helm
+ rm -r linux-amd64
+ rm helm-v3.6.3.tar.gz
+ helm repo add stable https://charts.helm.sh/stable
+ helm repo update
+ fi
+ [ -z "${DEBUG_INSTALL}" ] || DEBUG end of function
+}
+
+function install_k8s_storageclass() {
+ [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of function
+ OPENEBS_VERSION="1.12.0"
+ echo "Installing OpenEBS"
+ helm repo add openebs https://openebs.github.io/charts
+ helm repo update
+ helm install --create-namespace --namespace openebs openebs openebs/openebs --version ${OPENEBS_VERSION}
+ helm ls -n openebs
+ local storageclass_timeout=400
+ local counter=0
+ local storageclass_ready=""
+ echo "Waiting for storageclass"
+ while (( counter < storageclass_timeout ))
+ do
+ kubectl get storageclass openebs-hostpath &> /dev/null
+
+ if [ $? -eq 0 ] ; then
+ echo "Storageclass available"
+ storageclass_ready="y"
+ break
+ else
+ counter=$((counter + 15))
+ sleep 15
+ fi
+ done
+ [ -n "$storageclass_ready" ] || FATAL "Storageclass not ready after $storageclass_timeout seconds. Cannot install openebs"
+ kubectl patch storageclass openebs-hostpath -p '{"metadata": {"annotations":{"storageclass.kubernetes.io/is-default-class":"true"}}}'
+ [ -z "${DEBUG_INSTALL}" ] || DEBUG end of function
+}
+
+#installs metallb from helm
+function install_helm_metallb() {
+ [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of function
+ echo "Installing MetalLB"
+ METALLB_VERSION="0.11.0"
+ METALLB_IP_RANGE="$DEFAULT_IP/32"
+ echo "configInline:
+ address-pools:
+ - name: default
+ protocol: layer2
+ addresses:
+ - $METALLB_IP_RANGE" | sudo tee -a ${OSM_DOCKER_WORK_DIR}/metallb-config.yaml
+ helm repo add metallb https://metallb.github.io/metallb
+ helm repo update
+ helm install --create-namespace --namespace metallb-system metallb metallb/metallb --version ${METALLB_VERSION} -f ${OSM_DOCKER_WORK_DIR}/metallb-config.yaml
+ [ -z "${DEBUG_INSTALL}" ] || DEBUG end of function
+}
+
+#checks openebs and metallb readiness
+function check_for_readiness() {
+ [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of function
+ # Default input values
+ sampling_period=2 # seconds
+ time_for_readiness=20 # seconds ready
+ time_for_failure=200 # seconds broken
+ OPENEBS_NAMESPACE=openebs
+ METALLB_NAMESPACE=metallb-system
+ # STACK_NAME=osm # By default, "osm"
+
+ # Equivalent number of samples
+ oks_threshold=$((time_for_readiness/${sampling_period})) # No. ok samples to declare the system ready
+ failures_threshold=$((time_for_failure/${sampling_period})) # No. nok samples to declare the system broken
+ failures_in_a_row=0
+ oks_in_a_row=0
+
+ ####################################################################################
+ # Loop to check system readiness
+ ####################################################################################
+ while [[ (${failures_in_a_row} -lt ${failures_threshold}) && (${oks_in_a_row} -lt ${oks_threshold}) ]]
+ do
+ # State of OpenEBS
+ OPENEBS_STATE=$(kubectl get pod -n ${OPENEBS_NAMESPACE} --no-headers 2>&1)
+ OPENEBS_READY=$(echo "${OPENEBS_STATE}" | awk '$2=="1/1" || $2=="2/2" {printf ("%s\t%s\t\n", $1, $2)}')
+ OPENEBS_NOT_READY=$(echo "${OPENEBS_STATE}" | awk '$2!="1/1" && $2!="2/2" {printf ("%s\t%s\t\n", $1, $2)}')
+ COUNT_OPENEBS_READY=$(echo "${OPENEBS_READY}"| grep -v -e '^$' | wc -l)
+ COUNT_OPENEBS_NOT_READY=$(echo "${OPENEBS_NOT_READY}" | grep -v -e '^$' | wc -l)
+
+ # State of MetalLB
+ METALLB_STATE=$(kubectl get pod -n ${METALLB_NAMESPACE} --no-headers 2>&1)
+ METALLB_READY=$(echo "${METALLB_STATE}" | awk '$2=="1/1" || $2=="2/2" {printf ("%s\t%s\t\n", $1, $2)}')
+ METALLB_NOT_READY=$(echo "${METALLB_STATE}" | awk '$2!="1/1" && $2!="2/2" {printf ("%s\t%s\t\n", $1, $2)}')
+ COUNT_METALLB_READY=$(echo "${METALLB_READY}" | grep -v -e '^$' | wc -l)
+ COUNT_METALLB_NOT_READY=$(echo "${METALLB_NOT_READY}" | grep -v -e '^$' | wc -l)
+
+ # OK sample
+ if [[ $((${COUNT_OPENEBS_NOT_READY}+${COUNT_METALLB_NOT_READY})) -eq 0 ]]
+ then
+ ((++oks_in_a_row))
+ failures_in_a_row=0
+ echo -ne ===\> Successful checks: "${oks_in_a_row}"/${oks_threshold}\\r
+ # NOK sample
+ else
+ ((++failures_in_a_row))
+ oks_in_a_row=0
+ echo
+ echo Bootstraping... "${failures_in_a_row}" checks of ${failures_threshold}
+
+ # Reports failed pods in OpenEBS
+ if [[ "${COUNT_OPENEBS_NOT_READY}" -ne 0 ]]
+ then
+ echo "OpenEBS: Waiting for ${COUNT_OPENEBS_NOT_READY} of $((${COUNT_OPENEBS_NOT_READY}+${COUNT_OPENEBS_READY})) pods to be ready:"
+ echo "${OPENEBS_NOT_READY}"
+ echo
+ fi
+
+ # Reports failed statefulsets
+ if [[ "${COUNT_METALLB_NOT_READY}" -ne 0 ]]
+ then
+ echo "MetalLB: Waiting for ${COUNT_METALLB_NOT_READY} of $((${COUNT_METALLB_NOT_READY}+${COUNT_METALLB_READY})) pods to be ready:"
+ echo "${METALLB_NOT_READY}"
+ echo
+ fi
+ fi
+
+ #------------ NEXT SAMPLE
+ sleep ${sampling_period}
+ done
+
+ ####################################################################################
+ # OUTCOME
+ ####################################################################################
+ if [[ (${failures_in_a_row} -ge ${failures_threshold}) ]]
+ then
+ echo
+ FATAL "K8S CLUSTER IS BROKEN"
+ else
+ echo
+ echo "K8S CLUSTER IS READY"
+ fi
+ [ -z "${DEBUG_INSTALL}" ] || DEBUG end of function
+}
+
+#removes osm deployments and services
+function remove_k8s_namespace() {
+ [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of function
+ kubectl delete ns $1
+ [ -z "${DEBUG_INSTALL}" ] || DEBUG end of function
+}
+
+# main
+while getopts ":D:d:i:-: " o; do
+ case "${o}" in
+ i)
+ DEFAULT_IP="${OPTARG}"
+ ;;
+ d)
+ OSM_DOCKER_WORK_DIR="${OPTARG}"
+ ;;
+ D)
+ OSM_DEVOPS="${OPTARG}"
+ ;;
+ -)
+ [ "${OPTARG}" == "debug" ] && DEBUG_INSTALL="y" && continue
+ echo -e "Invalid option: '--$OPTARG'\n" >&2
+ exit 1
+ ;;
+ :)
+ echo "Option -$OPTARG requires an argument" >&2
+ exit 1
+ ;;
+ \?)
+ echo -e "Invalid option: '-$OPTARG'\n" >&2
+ exit 1
+ ;;
+ *)
+ exit 1
+ ;;
+ esac
+done
+
+source $OSM_DEVOPS/common/logging
+source $OSM_DEVOPS/common/track
+
+echo "DEBUG_INSTALL=$DEBUG_INSTALL"
+echo "DEFAULT_IP=$DEFAULT_IP"
+echo "OSM_DEVOPS=$OSM_DEVOPS"
+echo "OSM_DOCKER_WORK_DIR=$OSM_DOCKER_WORK_DIR"
+echo "INSTALL_K8S_MONITOR=$INSTALL_K8S_MONITOR"
+echo "HOME=$HOME"
+
+
+install_kube
+track install_k8s
+init_kubeadm $OSM_DOCKER_WORK_DIR/cluster-config.yaml
+kube_config_dir
+track init_k8s
+if [ -n "$INSTALL_K8S_MONITOR" ]; then
+ # uninstall OSM MONITORING
+ uninstall_k8s_monitoring
+ track uninstall_k8s_monitoring
+fi
+#remove old namespace
+remove_k8s_namespace osm
+deploy_cni_provider
+taint_master_node
+install_helm
+track install_helm
+install_k8s_storageclass
+track k8s_storageclass
+install_helm_metallb
+track k8s_metallb
+check_for_readiness
+track k8s_ready
+
projects / osm / devops.git / blobdiff