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#!/bin/bash
# Licensed to the Apache Software Foundation (ASF) under one *
# or more contributor license agreements. See the NOTICE file *
# distributed with this work for additional information *
# regarding copyright ownership. The ASF licenses this file *
# to you 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. *
command=$1
url=$2
module=$3
REPO="opnfv"
latest_image=$REPO/$module:latest
old_image=$REPO/$module:old
latest_container_name=$module
old_container_name=$module"_old"
latest_container_id=
old_container_id=
new_start_container=
function DEBUG() {
echo `date "+%Y-%m-%d %H:%M:%S.%N"` ": $1"
}
function check_connectivity() {
# check update status via test the connectivity of provide url
sleep 5
cmd=`curl -s --head --request GET ${url} | grep '200 OK' > /dev/null`
rc=$?
DEBUG $rc
if [[ $rc == 0 ]]; then
return 0
else
return 1
fi
}
function pull_latest_image() {
DEBUG "pull latest image $latest_image"
docker pull $latest_image
}
function get_latest_running_container() {
latest_container_id=`docker ps -q --filter name=^/$latest_container_name$`
}
function get_old_running_container() {
old_container_id=`docker ps -q --filter name=^/$old_container_name$`
}
function delete_old_image() {
DEBUG "delete old image: $old_image"
docker rmi -f $old_image
}
function delete_old_container() {
DEBUG "delete old container: $old_container_name"
docker ps -a -q --filter name=^/$old_container_name$ | xargs docker rm -f &>/dev/null
}
function delete_latest_container() {
DEBUG "delete latest container: $module"
docker ps -a -q --filter name=^/$latest_container_name$ | xargs docker rm -f &>/dev/null
}
function delete_latest_image() {
DEBUG "delete latest image: $REPO/$module:latest"
docker rmi -f $latest_image
}
function change_image_tag_2_old() {
DEBUG "change image tag 2 old"
docker tag $latest_image $old_image
docker rmi -f $latest_image
}
function mark_latest_container_2_old() {
DEBUG "mark latest container to be old"
docker rename "$latest_container_name" "$old_container_name"
}
function stop_old_container() {
DEBUG "stop old container"
docker stop "$old_container_name"
}
function run_latest_image() {
new_start_container=`$command`
DEBUG "run latest image: $new_start_container"
}
get_latest_running_container
get_old_running_container
if [[ ! -z $latest_container_id ]]; then
DEBUG "latest container is running: $latest_container_id"
delete_old_container
delete_old_image
change_image_tag_2_old
mark_latest_container_2_old
pull_latest_image
stop_old_container
run_latest_image
elif [[ ! -z $old_container_id ]]; then
DEBUG "old container is running: $old_container_id"
delete_latest_container
delete_latest_image
pull_latest_image
stop_old_container
run_latest_image
else
DEBUG "no container is running"
delete_old_container
delete_old_image
delete_latest_container
delete_latest_image
pull_latest_image
run_latest_image
fi
if check_connectivity; then
DEBUG "CONGRATS: $module update successfully"
else
DEBUG "ATTENTION: $module update failed"
id=`docker ps -a -q --filter name=^/$old_container_name$`
if [[ ! -z $id ]]; then
DEBUG "start old container instead"
docker stop $new_start_container
docker start $id
fi
if ! check_connectivity; then
DEBUG "BIG ISSUE: no container is running normally"
fi
exit 1
fi
docker images
docker ps -a
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