tools/cleanup.sh

   1 #!/bin/bash
   2 ##############################################################################
   3 # Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.        #
   4 #                                                                            #
   5 # Licensed under the Apache License, Version 2.0 (the "License"); you may    #
   6 # not use this file except in compliance with the License.                   #
   7 #                                                                            #
   8 # You may obtain a copy of the License at                                    #
   9 #       http://www.apache.org/licenses/LICENSE-2.0                           #
  10 #                                                                            #
  11 # Unless required by applicable law or agreed to in writing, software        #
  12 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT  #
  13 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.           #
  14 # See the License for the specific language governing permissions and        #
  15 # limitations under the License.                                             #
  16 ##############################################################################
  17
  18 set -eux
  19
  20 log () {
  21 printf "$(date)\t%s\n" "${1}"
  22 }
  23
  24
  25 TO_RM=(
  26 "/etc/apt/apt.conf.d/20-proxy.conf"
  27 "/etc/apt/sources.list.d/promenade-sources.list"
  28 "/etc/cni"
  29 "/etc/coredns"
  30 "/etc/docker/daemon.json"
  31 "/etc/etcd"
  32 "/etc/genesis"
  33 "/etc/kubernetes"
  34 "/etc/logrotate.d/json-logrotate"
  35 "/etc/systemd/system/kubelet.service"
  36 "/etc/systemd/system/docker.service.d/http-proxy.conf"
  37 "/home/ceph"
  38 "/usr/local/bin/armada"
  39 "/usr/local/bin/helm"
  40 "/usr/local/bin/kubectl"
  41 "/usr/local/bin/promenade-teardown"
  42 "/var/lib/anchor/calico-etcd-bootstrap"
  43 "/var/lib/etcd"
  44 "/var/lib/kubelet/pods"
  45 "/var/lib/openstack-helm"
  46 "/var/log/armada"
  47 "/var/log/containers"
  48 "/var/log/pods"
  49 )
  50
  51 TO_LEAVE=(
  52 "/etc/hosts"
  53 "/etc/resolv.conf"
  54 )
  55
  56 prune_docker() {
  57 log "Docker prune"
  58 docker volume prune -f
  59 docker system prune -a -f
  60 }
  61
  62 remove_containers() {
  63 log "Remove all Docker containers"
  64 docker ps -aq 2> /dev/null | xargs --no-run-if-empty docker rm -fv
  65 }
  66
  67 remove_files() {
  68 for item in "${TO_RM[@]}"; do
  69 log "Removing ${item}"
  70 rm -rf "${item}"
  71 done
  72 }
  73
  74 leave_files() {
  75 for item in "${TO_LEAVE[@]}"; do
  76 log "WARNING: === ${item} === has been modified, but we didn't revert changes."
  77 done
  78 }
  79
  80 reset_docker() {
  81 log "Remove all local Docker images"
  82 docker images -qa | xargs --no-run-if-empty docker rmi -f
  83
  84 log "Remove remaining Docker files"
  85 systemctl stop docker
  86 if ! rm -rf /var/lib/docker/*; then
  87 log "Failed to cleanup some files in /var/lib/docker"
  88 find /var/lib/docker
  89 fi
  90 systemctl start docker
  91 }
  92
  93 stop_kubelet() {
  94 log "Stop Kubelet and clean pods"
  95 systemctl stop kubelet || true
  96
  97 # Issue with orhan PODS
  98 # https://github.com/kubernetes/kubernetes/issues/38498
  99 find var/lib/kubelet/pods 2> dev/null | while read orphan_pod; do
 100 if [[ ${orphan_pod} == io~secret ]] || [[ ${orphan_pod} == empty-dir ]]; then
 101 umount "${orphan_pod}" || true
 102 rm -rf "${orphan_pod}"
 103 fi
 104 done
 105 }
 106
 107
 108 FORCE=0
 109 RESET_DOCKER=0
 110
 111 while getopts "fk" opt; do
 112 case "${opt}" in
 113 f)
 114 FORCE=1
 115 ;;
 116 k)
 117 RESET_DOCKER=1
 118 ;;
 119 *)
 120 echo "Unknown option"
 121 exit 1
 122 ;;
 123 esac
 124 done
 125
 126 if [[ $FORCE == "0" ]]; then
 127 echo Warning: This cleanup script is very aggressive. Run with -f to avoid this prompt.
 128 while true; do
 129 read -p "Are you sure you wish to proceed with aggressive cleanup?" yn
 130 case $yn in
 131 [Yy]*)
 132 RESET_DOCKER=1
 133 break
 134 ;;
 135 *)
 136 echo Exiting.
 137 exit 1
 138 esac
 139 done
 140 fi
 141
 142 stop_kubelet
 143 remove_containers
 144 remove_files
 145 prune_docker
 146
 147 systemctl daemon-reload
 148
 149 if [[ $RESET_DOCKER == "1" ]]; then
 150 reset_docker
 151 fi
 152
 153 leave_files