20200514 - Lagoon version checker bash script

#!/usr/bin/env bash

declare -a images
images[0]="php:7.2-fpm-alpine3.11"
images[1]="php:7.3-fpm-alpine3.11"
images[2]="php:7.4-fpm-alpine3.11"

declare -a desireVersions
desireVersions[0]="7.2.31"
desireVersions[1]="7.3.18"
desireVersions[2]="7.4.6"

c=0
for image in "${images[@]}"; do
	desiredVersion=${desireVersions[$c]}
	/usr/bin/docker pull $image 1>/dev/null 2>&1
	if [ $? -eq 0 ]; then
		phpVersion=`/usr/bin/docker run $image php-fpm -v | head -n 1 | awk '{print $2}'`
		if [ "$phpVersion" == "$desiredVersion" ]; then
			state="updated";
		else
			state="lagging";
		fi

		WORDS="$image - $phpVersion / $desiredVersion [$state]"
		echo $WORDS

	else
		echo "Error pulling: $image"
	fi
	c=$c+1
done;
unset image;

the only change I would make to this add a --rm to the docker command to kill the running container after the command dies.