Add redeploy_server script
This script can be used to execute the redeploy server workflow. Note that the Shipyard CLI should be installed prior to running this script. Change-Id: Ia5a799b822cbf84099f5373a65e8b0b4a56f5237
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#!/bin/bash
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# Copyright 2018 AT&T Intellectual Property. All other rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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set -ex
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# Check to ensure that the Shipyard CLI has been installed on
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# the Genesis host during the deckhand YAML load phase. Exit
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# script if Shipyard CLI is not installed.
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command -v shipyard >/dev/null 2>&1 || { echo >&2 "Please install Shipyard CLI before executing the script."; exit 1; }
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# We will need to pass the name of the server that we want to redeploy
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# when we execute the script. It is mandatory to do so and the script
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# will exit with exception if the server name is missing. For instance,
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# we can excute the script in the following manner:
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#
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# $ ./redeploy_server.sh controller01
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#
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if [[ -z "$1" ]]; then
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echo -e "Please specify the server name!"
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exit 1
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fi
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# Define Variables
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server=$1
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namespace="ucp"
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# Initialize Variables
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# Note that 'query_time' has a default value of 90 seconds
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# Note that 'redeploy_server_max_count' has a default value of 40 loops (based on
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# 90 seconds back off per cycle, i.e. 40 * 90 = 3600 seconds = 1 hr)
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# Note that user can use a different value for each of the variables by exporting
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# the required environment variable prior to running the script
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query_time=${query_time:-90}
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redeploy_server_max_count=${redeploy_server_max_count:-40}
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# Export Environment Variables
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export OS_USER_DOMAIN_NAME="${OS_USER_DOMAIN_NAME:-default}"
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export OS_PROJECT_DOMAIN_NAME="${OS_PROJECT_DOMAIN_NAME:-default}"
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export OS_PROJECT_NAME="${OS_PROJECT_NAME:-service}"
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export OS_USERNAME="${OS_USERNAME:-shipyard}"
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export OS_PASSWORD="${OS_PASSWORD:-password}"
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export OS_AUTH_URL="${OS_AUTH_URL:-http://keystone.${namespace}:80/v3}"
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# Define Color
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NC='\033[0m'
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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# Execute redeploy_server dag
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echo -e "Execute redeploy_server Dag...\n"
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shipyard create action redeploy_server --param="server-name=${server}"
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# The status or lifecycle phase of an action can be
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#
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# 1) Pending - The action is scheduled or preparing for execution.
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# 2) Processing - The action is underway.
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# 3) Complete - The action has completed successfully.
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# 4) Failed - The action has encountered an error, and has failed.
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# 5) Paused - The action has been paused by a user.
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# 6) Unknown (*) - Unknown State for corner cases
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# 7) null - We will end up with a `null` response from Shipyard if we
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# query the status of the task with an expired keystone token.
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# Note that this should never happen if we use Shipyard CLI as
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# new token is retrieved each time. Description for state 'null'
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# is included here for information only.
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#
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# Print current list of actions in Shipyard
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shipyard get actions
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# Retrieve the ID of the 'redeploy_server' action that is currently being executed
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echo -e "Retrieving Action ID...\n"
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action_id=`shipyard get actions | grep redeploy_server | grep -i Processing | awk '{print $2}'`
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if ! [[ ${action_id} ]]; then
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echo "Unable to Retrieve 'redeploy_server' Action ID!"
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exit 1
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else
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echo "The Action ID is" ${action_id}
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fi
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# Initialize 'action_lifecycle' to 'Pending'
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action_lifecycle="Pending"
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# Polling for 'redeploy_server' action
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redeploy_server_counter=1
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check_timeout_counter() {
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# Check total elapsed time
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# The default time out is set to 1 hr
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if [[ $redeploy_server_counter -ge $redeploy_server_max_count ]]; then
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echo 'Redeploy server task has timed out.'
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break
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fi
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}
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while true;
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do
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# Get Current State of Action Lifecycle
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describe_action=`shipyard describe ${action_id}`
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action_lifecycle=`echo ${describe_action} | awk '{print $6}'`
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if [[ $action_lifecycle == "Complete" ]]; then
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echo -e '\nServer Successfully Redeployed\n'
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break
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fi
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# Check Dag state
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if [[ $action_lifecycle == "Failed" ]] || [[ $action_lifecycle == "Paused" ]] || \
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[[ $action_lifecycle == "Unknown"* ]] || [[ $action_lifecycle == "null" ]]; then
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echo -e "Dag Execution is in" ${RED}$action_lifecycle${NC} "state\n"
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break
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else
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echo -e "Dag Execution is in" ${GREEN}$action_lifecycle${NC} "state\n"
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# Back off between each iteration
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echo -e "Back Off for $query_time seconds...\n"
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sleep $query_time
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# Step counter and check the timeout counter
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((redeploy_server_counter++))
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check_timeout_counter
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fi
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done
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# Return exit code so that we can use it to determine the final
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# state of the workflow
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if [[ $action_lifecycle == "Complete" ]]; then
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exit 0
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else
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exit 1
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fi
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