jjb/odl-openstack-cleanup-stale-stacks.sh

   1 #!/bin/bash -l
   2 # SPDX-License-Identifier: EPL-1.0
   3 ##############################################################################
   4 # Copyright (c) 2017 The Linux Foundation and others.
   5 #
   6 # All rights reserved. This program and the accompanying materials
   7 # are made available under the terms of the Eclipse Public License v1.0
   8 # which accompanies this distribution, and is available at
   9 # http://www.eclipse.org/legal/epl-v10.html
  10 ##############################################################################
  11 # Cleanup stale stacks in the cloud
  12 # Requires the variable JENKINS_URLS declared in the job as a space separated
  13 # list of Jenkins instances to check for active builds.
  14 echo "---> Cleanup stale stacks"
  15
  16 stack_in_jenkins() {
  17     # Usage: check_stack_in_jenkins STACK_NAME JENKINS_URL [JENKINS_URL...]
  18     # Returns: 0 If stack is in Jenkins and 1 if stack is not in Jenkins.
  19
  20     STACK_NAME="${1}"
  21
  22     builds=()
  23     for jenkins in "${@:2}"; do
  24         JENKINS_URL="$jenkins/computer/api/json?tree=computer[executors[currentExecutable[url]],oneOffExecutors[currentExecutable[url]]]&xpath=//url&wrapper=builds"
  25         resp=$(curl -s -w "\\n\\n%{http_code}" --globoff -H "Content-Type:application/json" "$JENKINS_URL")
  26         json_data=$(echo "$resp" | head -n1)
  27         #status=$(echo "$resp" | awk 'END {print $NF}')
  28
  29         if [[ "${jenkins}" == *"jenkins."*".org" ]]; then
  30             silo="production"
  31         else
  32             silo=$(echo "$jenkins" | sed 's/\/*$//' | awk -F'/' '{print $NF}')
  33         fi
  34         export silo
  35         # We purposely want to wordsplit here to combine the arrays
  36         # shellcheck disable=SC2206,SC2207
  37         builds=(${builds[@]} $(echo "$json_data" | \
  38             jq -r '.computer[].executors[].currentExecutable.url' \
  39             | grep -v null | awk -F'/' '{print ENVIRON["silo"] "-" $6 "-" $7}')
  40         )
  41     done
  42
  43     if [[ "${builds[*]}" =~ $STACK_NAME ]]; then
  44         return 0
  45     fi
  46
  47     return 1
  48 }
  49
  50 #########################
  51 ## FETCH ACTIVE BUILDS ##
  52 #########################
  53 # Fetch stack list before fetching active builds to minimize race condition
  54 # where we might be try to delete stacks while jobs are trying to start
  55
  56 # We purposely need word splitting here to create the OS_STACKS array.
  57 # shellcheck disable=SC2207
  58 OS_STACKS=($(openstack stack list \
  59             -f value -c "Stack Name" -c "Stack Status" \
  60             --property "stack_status=CREATE_COMPLETE" \
  61             --property "stack_status=DELETE_FAILED" \
  62             --property "stack_status=CREATE_FAILED" \
  63             | awk '{print $1}'))
  64
  65 echo "---> Active stacks"
  66 for stack in "${OS_STACKS[@]}"; do
  67     echo "$stack"
  68 done
  69
  70 ##########################
  71 ## DELETE UNUSED STACKS ##
  72 ##########################
  73 echo "---> Delete orphaned stacks"
  74
  75 # Search for stacks that are not in use by either releng or sandbox silos and
  76 # delete them.
  77 for STACK_NAME in "${OS_STACKS[@]}"; do
  78     echo "Checking if orphaned $STACK_NAME"
  79
  80     # JENKINS_URLS is provided by the Jenkins Job declaration and intentially
  81     # needs to be globbed.
  82     # shellcheck disable=SC2153,SC2086
  83     if stack_in_jenkins "$STACK_NAME" $JENKINS_URLS; then
  84         # No need to delete stacks if there exists an active build for them
  85         continue
  86     else
  87         status=$(openstack stack show -f value -c "stack_status" "$STACK_NAME")
  88         case "$status" in
  89             DELETE_IN_PROGRESS)
  90                 echo "skipping delete, $STACK_NAME is already DELETE in progress."
  91                 continue
  92             ;;
  93             DELETE_FAILED)
  94                 # Abandon is not supported in Vexxhost so let's keep trying to
  95                 # delete for now...
  96                 # echo "Stack delete failed, trying to stack abandon now."
  97                 # openstack stack abandon "$STACK_NAME"
  98                 echo "Deleting orphaned stack: $STACK_NAME"
  99                 openstack stack delete --yes "$STACK_NAME"
 100
 101                 echo "------------------------------------"
 102                 echo "Stack details"
 103                 echo "------------------------------------"
 104                 openstack stack show "$STACK_NAME" -f yaml
 105                 echo "------------------------------------"
 106                 continue
 107             ;;
 108             CREATE_COMPLETE|CREATE_FAILED)
 109                 echo "Deleting orphaned stack: $STACK_NAME"
 110                 openstack stack delete --yes "$STACK_NAME"
 111                 continue
 112             ;;
 113             *)
 114                 continue
 115             ;;
 116         esac
 117     fi
 118 done