post-start

#!/bin/bash

set -euo pipefail

TIMESTAMP_FORMAT="+%Y-%m-%d %H:%M:%S.%3N"
<% if_p("uaa.logging.format.timestamp") do |timestampConfig| %>
timestamp_config="<%= timestampConfig %>"
if [ ${timestamp_config} == "rfc3339" ]; then
  TIMESTAMP_FORMAT="+%Y-%m-%dT%H:%M:%S.%NZ"
fi
<% end %>

function log {
    echo "[$(date "${TIMESTAMP_FORMAT}")] uaa-post-start - $1"
}

log "Starting"

TS_DIR=/var/vcap/data/uaa/post-start
mkdir -p ${TS_DIR}
WHEN_FINISH=${TS_DIR}/when-finish.timestamp
WHEN_NOW=${TS_DIR}/when-now.timestamp

delete_ts_files() {
    rm -f "${WHEN_FINISH}"
    rm -f "${WHEN_NOW}"
    log "Cleaned up timestamp files"
}

touch -d "10 minutes" "${WHEN_FINISH}" # this creates a file with a timestamp 10 minutes in the future
touch "${WHEN_NOW}"

log "Performing post start healthcheck until $(stat $WHEN_FINISH -c '%y')"

# "-ot" is "older than"
while [ "${WHEN_NOW}" -ot "${WHEN_FINISH}" ]; do
    log "Running health check"
    set +e # allow the script to continue even when health_check fails
    /var/vcap/jobs/uaa/bin/health_check
    check=$?
    set -e

    if [ "$check" -eq "0" ]
    then
        log "Health check successful"
        delete_ts_files
        exit 0
    fi

    sleep 1

    touch "${WHEN_NOW}"
done

log "FAILED: Health check failed. Timed out. Check uaa.log to find out why the server failed to start."
delete_ts_files
exit 1