Parse the generated output from the fce magpie layer.

magpie-parse.sh

#!/bin/bash

# The magpie layer of the fce produces a magpie.json file.
# Unfortunately, the file contains the unit numbers, not the hostnames.
# And since the model is destroyed at the end, we have to parse logs
# to determine what machines had what results.

#- name: magpie
#  type: magpie_maas
#  parent: juju_maas_controller
#  config:
#     juju_model: magpie
#     oam-space: oam-space

if [ ! -e generated/foundation.log ]; then
    echo ERROR: generated/foundation.log not found.
    echo Script should be run in deployment directory.
fi

# find last magpie layer build in log
begin=$(awk '/Started building layer: magpie/{print FNR}' generated/foundation.log | tail -1)
loglines=$(awk "NR == $begin,/Finished building layer: magpie/" generated/foundation.log)
declare -A jujumachines="( $(echo "$loglines" | awk '/^[0-9]*    /{print "["$1"]="$4}') )"
declare -a order=( $(echo "$loglines" | grep -m 1 Deploying.*to.machines | sed 's/.*\[//; s/[^0-9 ]//g;') )
declare -a magpiemachines
for i in ${!order[@]}; do
    magpiemachines[$i]=${jujumachines[${order[$i]}]}
done

# change the output of jq to be simpler and tab delimited
sedexp='s/^..magpie-\([^\/]*\)\(\/[0-9]*\)","\([^"]*\)"\]/\1\t\2\t\3/;'
for (( i=${#magpiemachines[@]}-1; i>=0; i-- )); do
    # then replace the unit numbers with the machine names
    sedexp+="s/\\/$i/${magpiemachines[$i]}/;"
done
jq -rc '.[]| keys[] as $k | [$k, .[$k].iperf]' generated/magpie/magpie.json |
    sed -e "$sedexp" | sort