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|
#! /bin/sh
# The main goal of this script is test and time builds using Buildah or Docker.
# We hope to use it to help optimize Buildah build performance
#
# It takes two options
# First option tells the type of the container image
# build to do. Valid options are:
# Docker - docker build
# Buildah - buildah bud
# Both - Do docker build followed by buildah bud
#
# Second Option specifies a directory or cleanup
# The script will 'find' files beginning with Dockerfile, for each Dockerfile
# it finds it will run a build with the Dockerfile and directory for the
# context. When it does the builds, it will call time on them to show how
# long the builds take. The created image name will be a combination of the
# lowercased Directory name that the Dockerfile was found in plus the lower
# cased dockerfile name.
#
# if the second field is cleanup, the script will remove all images from the
# specified builder.
#
# The script does not check for conflicts on naming.
#
# Outputs file:
#
#
# cat /tmp/build_speed.json
# {
# "/usr/share/fedora-dockerfiles/redis/Dockerfile": {
# "docker": {
# "command": "docker build -f /usr/share/fedora-dockerfiles/redis/Dockerfile -t redis_dockerfile /usr/share/fedora-dockerfiles/redis",
# "real": "3:28.70"
# },
# "buildah": {
# "command": "buildah bud --layers -f /usr/share/fedora-dockerfiles/redis/Dockerfile -t redis_dockerfile /usr/share/fedora-dockerfiles/redis",
# "real": "2:55.48"
# }
# }
# }
#
# Examples uses
# ./build_speed.sh Docker ~/MyImages
# ./build_speed.sh Both /usr/share/fedora-dockerfiles/django/Dockerfile
#totalsfile=$(mktemp /tmp/buildspeedXXX.json)
totalsfile=/tmp/build_speed.json
commaDockerfile=""
echo -n '{' > $totalsfile
Dockerfiles() {
find -L $1 -name Dockerfile\*
}
Buildah() {
Name=$1
Dockerfile=$2
Context=$3
echo buildah bud --layers -f ${Dockerfile} -t ${Name} ${Context}
Time buildah bud --layers -f ${Dockerfile} -t ${Name} ${Context}
}
Time() {
outfile=$(mktemp /tmp/buildspeedXXX)
/usr/bin/time -o $outfile --f "%E" $@
echo "{\"engine\": \"$1\", \"command\": \"$@\", \"real\": \"$(cat ${outfile})\"}"
echo -n "${comma}\"$1\": {\"command\": \"$@\", \"real\": \"$(cat ${outfile})\"}" >> $totalsfile
comma=","
rm -f $outfile
}
Docker() {
Name=$1
Dockerfile=$2
Context=$3
echo docker build -f ${Dockerfile} -t ${Name} ${Context}
Time docker build -f ${Dockerfile} -t ${Name} ${Context}
}
Both() {
comma=""
echo -n "${commaDockerfile}\"$2\": {" >> $totalsfile
commaDockerfile=","
Docker $1 $2 $3
Buildah $1 $2 $3
echo -n "}" >> $totalsfile
}
Docker_cleanup() {
docker rmi --force $(docker images -q)
}
Buildah_cleanup() {
buildah rmi --force --all
}
Both_cleanup() {
Docker_cleanup
Buildah_cleanup
}
Cmd=${1?Missing CMD argument}
Path=${2?Missing PATH argument}
case "$Cmd" in
Docker) ;;
Buildah) ;;
Both) ;;
*) echo "Invalid command '$Cmd'; must be Buildah, Docker, or Both"; exit 1;;
esac
if [ "$Path" == "cleanup" ]; then
${Cmd}_cleanup
exit 0
fi
for i in $(Dockerfiles ${Path});do
name=$(basename $(dirname $i) | sed -e 's/\(.*\)/\L\1/')
name=${name}_$(basename $i | sed -e 's/\(.*\)/\L\1/')
echo ${Cmd} ${name} $i $(dirname $i)
${Cmd} ${name} $i $(dirname $i)
done
echo '}'>>$totalsfile
echo cat $totalsfile
cat $totalsfile
|
