add usage (help) to build script

master
Kebler Network System Administrator 2022-10-22 08:23:16 -07:00
parent f50c85cce9
commit 6cef778b83
1 changed files with 65 additions and 42 deletions

45
build
View File

@ -1,7 +1,30 @@
#!/bin/bash
declare targets=(dev arm amd deploy private multi)
declare OPTION; declare OPTARG; declare OPTIND
while getopts 'b:d:t:nyr:u:px' OPTION; do
usage() { # Function: Print a help message.
echo "Image Build Script: Creates one or more images using a target in the docker-bake.hcl file"
echo "USAGE: $0 <setup options> buildtarget <imagename, imageuser>"
echo "valid targets: ${targets[*]}; default: dev"
echo no argument options:
echo "-c try out the image by starting a container terminal therein, for dev target this is the default;"
echo "-x exclude distro from image name;"
echo "-n for --no_cache"
echo "-p push to repository; after build push to repository default is hub.docker.common (not need for deploy target)"
echo required argument options:
echo "-t <TAG> tag following : in output image name (i.e. REPO/USER/NAME:TAG), default: latest"
echo "-u <USER>; repository user prefix in output image name (i.e. REPO/USER/NAME:TAG)"
echo "-r <REPO>; private repo name, do not use for hub.docker.com (docker.io)"
echo "-b <BASE_IMAGE>; used in FROM in Dockerfile, default is official distro image (e.g. alpine:latest)"
}
exit_abnormal() { # Function: Exit with error.
usage
exit ${1:-1}
}
while getopts ':b:d:t:ncr:u:pxh' OPTION; do
# echo processing: option:$OPTION argument:$OPTARG index:$OPTIND remaining:${@:$OPTIND}
case "$OPTION" in
b)
@ -22,35 +45,35 @@ declare OPTION; declare OPTARG; declare OPTIND
u)
RUSER=$OPTARG
;;
y)
c)
try=true
;;
p)
push=true
;;
n)
NO_CACHE=true
nocache="--no-cache"
;;
r)
REPO=$OPTARG
;;
*) echo unknown run option -$OPTARG
echo "USAGE: build <setup options> target(or target)"
echo "available options -d <LINUX_DISTRO>; -t <TAG>; -e execute test script after build; -n for --no_cache "
h)
exit_abnormal 0
;;
*)
echo "unknown $0 option -$OPTARG"
exit_abnormal 4
;;
esac
done
done
shift $((OPTIND - 1))
shift $((OPTIND - 1))
[ $NO_CACHE ] && nocache="--no-cache" || nocache=""
target=${1:-dev}
LINUX_DISTRO=${LINUX_DISTRO:-alpine}
name=$2
RUSER=${3:-$RUSER}
IMAGE_NAME=$([[ $RUSER ]] && echo ${RUSER}/)${name}$([[ (! $exclude_distro) && $name ]] && echo "-")$([[ ! $exclude_distro ]] && echo ${LINUX_DISTRO})
if [[ $BASE_IMAGE ]]; then
echo determining DISTRO of base image: $BASE_IMAGE