installers/install_cluster_addons.sh

   1 #!/bin/bash
   2 #
   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
   6 #
   7 #       http://www.apache.org/licenses/LICENSE-2.0
   8 #
   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.
  14 #
  15
  16 set +eux
  17
  18 function install_k8s_storageclass() {
  19     [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of function
  20     # Openebs versions can be found here: https://github.com/openebs/openebs/releases
  21     OPENEBS_VERSION="3.7.0"
  22     echo "Installing OpenEBS"
  23     helm repo add openebs https://openebs.github.io/charts
  24     helm repo update
  25     helm install --create-namespace --namespace openebs openebs openebs/openebs --version ${OPENEBS_VERSION}
  26     helm ls -n openebs
  27     local storageclass_timeout=400
  28     local counter=0
  29     local storageclass_ready=""
  30     echo "Waiting for storageclass"
  31     while (( counter < storageclass_timeout ))
  32     do
  33         kubectl get storageclass openebs-hostpath &> /dev/null
  34
  35         if [ $? -eq 0 ] ; then
  36             echo "Storageclass available"
  37             storageclass_ready="y"
  38             break
  39         else
  40             counter=$((counter + 15))
  41             sleep 15
  42         fi
  43     done
  44     [ -n "$storageclass_ready" ] || FATAL_TRACK k8scluster "Storageclass not ready after $storageclass_timeout seconds. Cannot install openebs"
  45     kubectl patch storageclass openebs-hostpath -p '{"metadata": {"annotations":{"storageclass.kubernetes.io/is-default-class":"true"}}}'
  46     [ -z "${DEBUG_INSTALL}" ] || DEBUG end of function
  47 }
  48
  49 #installs metallb from helm
  50 function install_helm_metallb() {
  51     [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of function
  52     echo "Installing MetalLB"
  53     METALLB_VERSION="0.13.10"
  54     helm repo add metallb https://metallb.github.io/metallb
  55     helm repo update
  56     helm install --create-namespace --namespace metallb-system metallb metallb/metallb --version ${METALLB_VERSION}
  57     [ -z "${DEBUG_INSTALL}" ] || DEBUG end of function
  58 }
  59
  60 function configure_ipaddresspool_metallb() {
  61     [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of function
  62     echo "Creating IP address pool manifest: ${OSM_CLUSTER_WORK_DIR}/metallb-ipaddrpool.yaml"
  63     METALLB_IP_RANGE="$DEFAULT_IP/32"
  64     echo "apiVersion: metallb.io/v1beta1
  65 kind: IPAddressPool
  66 metadata:
  67   name: first-pool
  68   namespace: metallb-system
  69 spec:
  70   addresses:
  71   - ${METALLB_IP_RANGE}" | sudo tee -a ${OSM_CLUSTER_WORK_DIR}/metallb-ipaddrpool.yaml
  72     echo "Applying IP address pool manifest: kubectl apply -f ${OSM_CLUSTER_WORK_DIR}/metallb-ipaddrpool.yaml"
  73     kubectl apply -f ${OSM_CLUSTER_WORK_DIR}/metallb-ipaddrpool.yaml || FATAL_TRACK k8scluster "Cannot create IP address Pool in MetalLB"
  74     [ -z "${DEBUG_INSTALL}" ] || DEBUG end of function
  75 }
  76
  77 #installs cert-manager
  78 function install_helm_certmanager() {
  79     [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of function
  80     echo "Installing cert-manager"
  81     CERTMANAGER_VERSION="v1.9.1"
  82     helm repo add jetstack https://charts.jetstack.io
  83     helm repo update
  84     helm install cert-manager --create-namespace --namespace cert-manager jetstack/cert-manager \
  85         --version ${CERTMANAGER_VERSION} --set installCRDs=true --set prometheus.enabled=false \
  86         --set clusterResourceNamespace=osm \
  87         --set extraArgs="{--enable-certificate-owner-ref=true}"
  88     [ -z "${DEBUG_INSTALL}" ] || DEBUG end of function
  89 }
  90
  91 #checks openebs and metallb readiness
  92 function check_for_readiness() {
  93     [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of function
  94     # Default input values
  95     sampling_period=2       # seconds
  96     time_for_readiness=20   # seconds ready
  97     time_for_failure=200    # seconds broken
  98     OPENEBS_NAMESPACE=openebs
  99     METALLB_NAMESPACE=metallb-system
 100     CERTMANAGER_NAMESPACE=cert-manager
 101     # STACK_NAME=osm          # By default, "osm"
 102
 103     # Equivalent number of samples
 104     oks_threshold=$((time_for_readiness/${sampling_period}))     # No. ok samples to declare the system ready
 105     failures_threshold=$((time_for_failure/${sampling_period}))  # No. nok samples to declare the system broken
 106     failures_in_a_row=0
 107     oks_in_a_row=0
 108
 109     ####################################################################################
 110     # Loop to check system readiness
 111     ####################################################################################
 112     while [[ (${failures_in_a_row} -lt ${failures_threshold}) && (${oks_in_a_row} -lt ${oks_threshold}) ]]
 113     do
 114         # State of OpenEBS
 115         OPENEBS_STATE=$(kubectl get pod -n ${OPENEBS_NAMESPACE} --no-headers 2>&1)
 116         OPENEBS_READY=$(echo "${OPENEBS_STATE}" | awk '$2=="1/1" || $2=="2/2" {printf ("%s\t%s\t\n", $1, $2)}')
 117         OPENEBS_NOT_READY=$(echo "${OPENEBS_STATE}" | awk '$2!="1/1" && $2!="2/2" {printf ("%s\t%s\t\n", $1, $2)}')
 118         COUNT_OPENEBS_READY=$(echo "${OPENEBS_READY}"| grep -v -e '^$' | wc -l)
 119         COUNT_OPENEBS_NOT_READY=$(echo "${OPENEBS_NOT_READY}" | grep -v -e '^$' | wc -l)
 120
 121         # State of MetalLB
 122         METALLB_STATE=$(kubectl get pod -n ${METALLB_NAMESPACE} --no-headers 2>&1)
 123         METALLB_READY=$(echo "${METALLB_STATE}" | awk '$2=="1/1" || $2=="4/4" {printf ("%s\t%s\t\n", $1, $2)}')
 124         METALLB_NOT_READY=$(echo "${METALLB_STATE}" | awk '$2!="1/1" && $2!="4/4" {printf ("%s\t%s\t\n", $1, $2)}')
 125         COUNT_METALLB_READY=$(echo "${METALLB_READY}" | grep -v -e '^$' | wc -l)
 126         COUNT_METALLB_NOT_READY=$(echo "${METALLB_NOT_READY}" | grep -v -e '^$' | wc -l)
 127
 128         # State of CertManager
 129         CERTMANAGER_STATE=$(kubectl get pod -n ${CERTMANAGER_NAMESPACE} --no-headers 2>&1)
 130         CERTMANAGER_READY=$(echo "${CERTMANAGER_STATE}" | awk '$2=="1/1" || $2=="2/2" {printf ("%s\t%s\t\n", $1, $2)}')
 131         CERTMANAGER_NOT_READY=$(echo "${CERTMANAGER_STATE}" | awk '$2!="1/1" && $2!="2/2" {printf ("%s\t%s\t\n", $1, $2)}')
 132         COUNT_CERTMANAGER_READY=$(echo "${CERTMANAGER_READY}" | grep -v -e '^$' | wc -l)
 133         COUNT_CERTMANAGER_NOT_READY=$(echo "${CERTMANAGER_NOT_READY}" | grep -v -e '^$' | wc -l)
 134
 135         # OK sample
 136         if [[ $((${COUNT_OPENEBS_NOT_READY}+${COUNT_METALLB_NOT_READY})) -eq 0 ]]
 137         then
 138             ((++oks_in_a_row))
 139             failures_in_a_row=0
 140             echo -ne ===\> Successful checks: "${oks_in_a_row}"/${oks_threshold}\\r
 141         # NOK sample
 142         else
 143             ((++failures_in_a_row))
 144             oks_in_a_row=0
 145             echo
 146             echo Bootstraping... "${failures_in_a_row}" checks of ${failures_threshold}
 147
 148             # Reports failed pods in OpenEBS
 149             if [[ "${COUNT_OPENEBS_NOT_READY}" -ne 0 ]]
 150             then
 151                 echo "OpenEBS: Waiting for ${COUNT_OPENEBS_NOT_READY} of $((${COUNT_OPENEBS_NOT_READY}+${COUNT_OPENEBS_READY})) pods to be ready:"
 152                 echo "${OPENEBS_NOT_READY}"
 153                 echo
 154             fi
 155
 156             # Reports failed pods in MetalLB
 157             if [[ "${COUNT_METALLB_NOT_READY}" -ne 0 ]]
 158             then
 159                 echo "MetalLB: Waiting for ${COUNT_METALLB_NOT_READY} of $((${COUNT_METALLB_NOT_READY}+${COUNT_METALLB_READY})) pods to be ready:"
 160                 echo "${METALLB_NOT_READY}"
 161                 echo
 162             fi
 163
 164             # Reports failed pods in CertManager
 165             if [[ "${COUNT_CERTMANAGER_NOT_READY}" -ne 0 ]]
 166             then
 167                 echo "CertManager: Waiting for ${COUNT_CERTMANAGER_NOT_READY} of $((${COUNT_CERTMANAGER_NOT_READY}+${COUNT_CERTMANAGER_READY})) pods to be ready:"
 168                 echo "${CERTMANAGER_NOT_READY}"
 169                 echo
 170             fi
 171         fi
 172
 173         #------------ NEXT SAMPLE
 174         sleep ${sampling_period}
 175     done
 176
 177     ####################################################################################
 178     # OUTCOME
 179     ####################################################################################
 180     if [[ (${failures_in_a_row} -ge ${failures_threshold}) ]]
 181     then
 182         echo
 183         FATAL_TRACK k8scluster "K8S CLUSTER IS BROKEN"
 184     else
 185         echo
 186         echo "K8S CLUSTER IS READY"
 187     fi
 188     [ -z "${DEBUG_INSTALL}" ] || DEBUG end of function
 189 }
 190
 191 # main
 192 while getopts ":D:d:i:-: " o; do
 193     case "${o}" in
 194         i)
 195             DEFAULT_IP="${OPTARG}"
 196             ;;
 197         d)
 198             OSM_CLUSTER_WORK_DIR="${OPTARG}"
 199             ;;
 200         D)
 201             OSM_DEVOPS="${OPTARG}"
 202             ;;
 203         -)
 204             [ "${OPTARG}" == "debug" ] && DEBUG_INSTALL="y" && continue
 205             echo -e "Invalid option: '--$OPTARG'\n" >&2
 206             exit 1
 207             ;;
 208         :)
 209             echo "Option -$OPTARG requires an argument" >&2
 210             exit 1
 211             ;;
 212         \?)
 213             echo -e "Invalid option: '-$OPTARG'\n" >&2
 214             exit 1
 215             ;;
 216         *)
 217             exit 1
 218             ;;
 219     esac
 220 done
 221
 222 source $OSM_DEVOPS/common/logging
 223 source $OSM_DEVOPS/common/track
 224
 225 echo "DEBUG_INSTALL=$DEBUG_INSTALL"
 226 echo "DEFAULT_IP=$DEFAULT_IP"
 227 echo "OSM_DEVOPS=$OSM_DEVOPS"
 228 echo "OSM_CLUSTER_WORK_DIR=$OSM_CLUSTER_WORK_DIR"
 229
 230 install_k8s_storageclass
 231 track k8scluster k8s_storageclass_ok
 232 install_helm_metallb
 233 track k8scluster k8s_metallb_ok
 234 install_helm_certmanager
 235 track k8scluster k8s_certmanager_ok
 236 check_for_readiness
 237 track k8scluster k8s_ready_ok
 238 configure_ipaddresspool_metallb