Initial Commit
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cryobry
277
plugins/podman/podmanRunWrapper
Executable file
277
plugins/podman/podmanRunWrapper
Executable file
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#!/usr/bin/env bash
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# shellcheck disable=SC1090,SC2004
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podmanRunWrapper () {
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########################
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###### FUNCTIONS #######
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########################
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_printHelpAndExit () {
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if [[ -z $_debug ]]; then
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cat <<-'EOF'
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USAGE
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Argument mode:
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podman-run-wrapper -m MODE -o OPTIONS -i IMAGE [-n CONTAINER_NAME]
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[--help] [--silent] [--debug] [COMMANDS [ARGS...]]
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Array mode (bash >= 4.3):
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podman-run-wrapper -a ARRAY
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EXAMPLE
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podman-run-wrapper -m ephemeral -o "-it -v $PWD:$PWD -w $PWD" -i "php:latest" -c "php ./script.php"
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ARRAY=( "-m" "ephemeral" "-o" "--rm -it -v $PWD:$PWD -w $PWD" "-i" "php:latest" "-c" "php ./script.php")
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podman-run-wrapper -a ARRAY
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COMMANDS
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COMMANDS to run in the container (e.g. the current active file, an external build script, a
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program residing in the container, etc.)
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Can be empty (run default container entrypoint)
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OPTIONS
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--mode, -m MODE
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MODE can be any of the following:
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1. ephemeral
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2. persistent
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3. recreate-persistent
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4. remove-persistent
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--options, -o OPTIONS
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OPTIONS to pass directly to `podman run` or `podman exec` depending on the mode or
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container state
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--image, -i IMAGE
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IMAGE used to create the container
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--array, -a ARRAY
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Read arguments array named ARRAY (bash >= 4.3)
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This is useful to reduce parsing errors and recommended for build-wrapper plugins
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--optionsarray OPTIONS_ARRAY
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Read podman options from array named OPTIONS_ARRAY (bash >= 4.3)
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This is useful to reduce parsing errors and recommended for build-wrapper plugins
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--commandsarray COMMANDS_ARRAY
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Read container commands from array named COMMANDS_ARRAY (bash >= 4.3)
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This is useful to reduce parsing errors and recommended for build-wrapper plugins
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--name, -n CONTAINER_NAME
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Use the CONTAINER_NAME base to name containers (should be unique to each project)
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Default: Container name will be set based on a concatenation of the image and commands
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--selinuxfix
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A temporary hack to grant SELinux write access on $PWD until a better fix is found
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--silent, -s
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Only print errors
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--debug, -d
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Print debugging
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--help, -h
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Print this help message and exit
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EOF
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fi
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# Exit using passed exit code
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[[ -z $1 ]] && exit 0 || exit "$1"
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}
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# Parse input
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_parseInput () {
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unset _mode _cmds_arr _opts_arr _options _prw_opts_arr _image _name _array _selinux_fix
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# Use getopt to print help
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if INPUT=$(getopt -o +m:o:i:x:n:a:sdh -l mode:,options:,image:,name:,array:,optionsarray:,commandsarray:,selinuxfix,silent,debug,help -- "$@"); then
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eval set -- "$INPUT"
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while true; do
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case "$1" in
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--mode|-m)
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shift
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_mode="$1"
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;;
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--options|-o)
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shift
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_options="$1"
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;;
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--image|-i)
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shift
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_image="$1"
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;;
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--name|-n)
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shift
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_name="$1"
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;;
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--array|-a)
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shift
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_array="$1"
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;;
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--optionsarray)
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shift
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_opts_arr="$1"
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;;
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--commandsarray)
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shift
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_cmds_arr="$1"
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;;
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--selinuxfix)
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_selinux_fix="1"
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;;
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--help|-h)
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_printHelpAndExit 0
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;;
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--silent|-s)
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_silent="1"
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;;
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--debug|-d)
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_debug="1"
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echo "Debugging on!"
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;;
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--)
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shift
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break
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;;
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esac
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shift
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done
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else
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echo "Incorrect options provided!"
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_printHelpAndExit 1
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fi
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# If array mode, load and parse input array
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if [[ -n $_array ]]; then
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checkBashVersion
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local _n_array
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declare -n _n_array="$_array"
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_parseInput "${_n_array[@]}"
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return
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fi
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# Parse podman options
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if [[ -n $_opts_arr ]]; then
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# namerefs are awesome
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declare -gn _prw_opts_arr="$_opts_arr"
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# If not array mode optionally load podman options from input string
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elif [[ -n $_options ]]; then
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declare -ga _prw_opts_arr
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for _option in $_options; do
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_prw_opts_arr+=("$_option")
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done
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else
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echo "Must provide --options or the name of an existing --optionsarray"
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_printHelpAndExit 1
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fi
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# Parse commands
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if [[ -n $_cmds_arr ]]; then
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declare -gn _prw_cmds_arr="$_cmds_arr"
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else
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# Create COMMANDS array from remaining arguments
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# shift getopt parameters away
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shift $((OPTIND - 1))
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# create array
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declare -ga _prw_cmds_arr
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_prw_cmds_arr=("$@")
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if [[ ${#_prw_cmds_arr[@]} -lt 1 ]]; then
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[[ -z $_silent ]] && echo "Warning: running container without any commands"
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fi
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fi
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[[ -n $_debug ]] && echo "_prw_opts_arr:" "${_prw_opts_arr[@]}"
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[[ -n $_debug ]] && echo "_prw_cmds_arr:" "${_prw_cmds_arr[@]}"
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}
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_addCName () {
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# autogenerate _name if missing
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[[ -z $_name ]] && _name="${_image}${_prw_cmds_arr[*]}"
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# sanitize container name
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_name="${_name//_/}" && _name="${_name// /}" && \
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_name="${_name//[^a-zA-Z0-9_]/}" && _name="${_name,,}"
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# append flag
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if [[ "$_mode" == "ephemeral" ]]; then
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_cname="prw-e-$_name"
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else
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_cname="prw-p-$_name"
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fi
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_prw_opts_arr+=("--name" "$_cname")
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}
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_removeContainer () {
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if podman container exists "$_cname"; then
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[[ -z $_silent ]] && echo "Removing container: $_cname"
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[[ -n $_debug ]] && echo "podman rm -v -f $_cname"
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podman rm -v -f "$_cname"
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fi
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}
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_runContainer () {
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# Run _remove_container first to not run in existing container
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if podman container exists "${_cname}"; then
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[[ -z $_silent ]] && echo "Reusing container: $_cname"
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[[ -n $_debug ]] && echo podman exec "$_cname" sh -c "${_prw_cmds_arr[@]}"
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podman exec "$_cname" sh -c "${_prw_cmds_arr[@]}"
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exit $?
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else
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[[ -z $_silent ]] && echo "Running in container: $_cname"
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[[ -n $_debug ]] && echo "Command: podman run" "${_prw_opts_arr[@]}" "$_image" sh -c "${_prw_cmds_arr[@]}"
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podman run "${_prw_opts_arr[@]}" "$_image" "${_prw_cmds_arr[@]}"
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exit $?
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fi
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}
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#########################
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####### EXECUTE #########
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#########################
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_execute () {
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# Get input
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_parseInput "$@"
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# Set container name
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_addCName
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# SELinux fix
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[[ -n $_selinux_fix ]] && fixPermissions "$PWD"
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# Execute podman
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if [[ $_mode == "ephemeral" || $_mode == "recreate-persistent" ]]; then
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_removeContainer
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_runContainer
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elif [[ $_mode == "remove-persistent" ]]; then
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_removeContainer
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elif [[ $_mode == "persistent" ]]; then
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_runContainer
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else
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echo "Unknown mode!"
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_printHelpAndExit 1
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fi
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}
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# Allow this function to be executed directly
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_execute "$@"
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}
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# Allow script to be called directly
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if [[ "${BASH_SOURCE[0]}" == "$0" ]]; then
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# No imported functions
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#source-functions
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podmanRunWrapper "$@"
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fi
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