根据docker events事件执行指定脚本

# # Copyright (c) 2009 Kevin Porter / Advanced Web Construction Ltd # (http://coding.tinternet.info, http://webutils.co.uk) # Copyright (c) 2010-2014 Ruediger Meier <sweet_f_a@gmx.de> # (https://github.com/rudimeier/) # # License: BSD-3-Clause, see LICENSE file # # Simple INI file parser. # # See README for usage. # # function read_ini() { # Be strict with the prefix, since it's going to be run through eval function check_prefix() { if ! [[ "${VARNAME_PREFIX}" =~ ^[a-zA-Z_][a-zA-Z0-9_]*$ ]] ;then echo "read_ini: invalid prefix '${VARNAME_PREFIX}'" >&2 return 1 fi } function check_ini_file() { if [ ! -r "$INI_FILE" ] ;then echo "read_ini: '${INI_FILE}' doesn't exist or not" \ "readable" >&2 return 1 fi } # enable some optional shell behavior (shopt) function pollute_bash() { if ! shopt -q extglob ;then SWITCH_SHOPT="${SWITCH_SHOPT} extglob" fi if ! shopt -q nocasematch ;then SWITCH_SHOPT="${SWITCH_SHOPT} nocasematch" fi shopt -q -s ${SWITCH_SHOPT} } # unset all local functions and restore shopt settings before returning # from read_ini() function cleanup_bash() { shopt -q -u ${SWITCH_SHOPT} unset -f check_prefix check_ini_file pollute_bash cleanup_bash } local INI_FILE="" local INI_SECTION="" # {{{ START Deal with command line args # Set defaults local BOOLEANS=1 local VARNAME_PREFIX=INI local CLEAN_ENV=0 # {{{ START Options # Available options: # --boolean Whether to recognise special boolean values: ie for 'yes', 'true' # and 'on' return 1; for 'no', 'false' and 'off' return 0. Quoted # values will be left as strings # Default: on # # --prefix=STRING String to begin all returned variables with (followed by '__'). # Default: INI # # First non-option arg is filename, second is section name while [ $# -gt 0 ] do case $1 in --clean | -c ) CLEAN_ENV=1 ;; --booleans | -b ) shift BOOLEANS=$1 ;; --prefix | -p ) shift VARNAME_PREFIX=$1 ;; * ) if [ -z "$INI_FILE" ] then INI_FILE=$1 else if [ -z "$INI_SECTION" ] then INI_SECTION=$1 fi fi ;; esac shift done if [ -z "$INI_FILE" ] && [ "${CLEAN_ENV}" = 0 ] ;then echo -e "Usage: read_ini [-c] [-b 0| -b 1]] [-p PREFIX] FILE"\ "[SECTION]\n or read_ini -c [-p PREFIX]" >&2 cleanup_bash return 1 fi if ! check_prefix ;then cleanup_bash return 1 fi local INI_ALL_VARNAME="${VARNAME_PREFIX}__ALL_VARS" local INI_ALL_SECTION="${VARNAME_PREFIX}__ALL_SECTIONS" local INI_NUMSECTIONS_VARNAME="${VARNAME_PREFIX}__NUMSECTIONS" if [ "${CLEAN_ENV}" = 1 ] ;then eval unset "\$${INI_ALL_VARNAME}" fi unset ${INI_ALL_VARNAME} unset ${INI_ALL_SECTION} unset ${INI_NUMSECTIONS_VARNAME} if [ -z "$INI_FILE" ] ;then cleanup_bash return 0 fi if ! check_ini_file ;then cleanup_bash return 1 fi # Sanitise BOOLEANS - interpret "0" as 0, anything else as 1 if [ "$BOOLEANS" != "0" ] then BOOLEANS=1 fi # }}} END Options # }}} END Deal with command line args local LINE_NUM=0 local SECTIONS_NUM=0 local SECTION="" # IFS is used in "read" and we want to switch it within the loop local IFS=$' \t\n' local IFS_OLD="${IFS}" # we need some optional shell behavior (shopt) but want to restore # current settings before returning local SWITCH_SHOPT="" pollute_bash while read -r line || [ -n "$line" ] do #echo line = "$line" ((LINE_NUM++)) # Skip blank lines and comments if [ -z "$line" -o "${line:0:1}" = ";" -o "${line:0:1}" = "#" ] then continue fi # Section marker? if [[ "${line}" =~ ^\[[a-zA-Z0-9_]{1,}\]$ ]] then # Set SECTION var to name of section (strip [ and ] from section marker) SECTION="${line#[}" SECTION="${SECTION%]}" eval "${INI_ALL_SECTION}=\"\${${INI_ALL_SECTION}# } $SECTION\"" ((SECTIONS_NUM++)) continue fi # Are we getting only a specific section? And are we currently in it? if [ ! -z "$INI_SECTION" ] then if [ "$SECTION" != "$INI_SECTION" ] then continue fi fi # Valid var/value line? (check for variable name and then '=') if ! [[ "${line}" =~ ^[a-zA-Z0-9._]{1,}[[:space:]]*= ]] then echo "Error: Invalid line:" >&2 echo " ${LINE_NUM}: $line" >&2 cleanup_bash return 1 fi # split line at "=" sign IFS="=" read -r VAR VAL <<< "${line}" IFS="${IFS_OLD}" # delete spaces around the equal sign (using extglob) VAR="${VAR%%+([[:space:]])}" VAL="${VAL##+([[:space:]])}" VAR=$(echo $VAR) # Construct variable name: # ${VARNAME_PREFIX}__$SECTION__$VAR # Or if not in a section: # ${VARNAME_PREFIX}__$VAR # In both cases, full stops ('.') are replaced with underscores ('_') if [ -z "$SECTION" ] then VARNAME=${VARNAME_PREFIX}__${VAR//./_} else VARNAME=${VARNAME_PREFIX}__${SECTION}__${VAR//./_} fi eval "${INI_ALL_VARNAME}=\"\${${INI_ALL_VARNAME}# } ${VARNAME}\"" if [[ "${VAL}" =~ ^\".*\"$ ]] then # remove existing double quotes VAL="${VAL##\"}" VAL="${VAL%%\"}" elif [[ "${VAL}" =~ ^\'.*\'$ ]] then # remove existing single quotes VAL="${VAL##\'}" VAL="${VAL%%\'}" elif [ "$BOOLEANS" = 1 ] then # Value is not enclosed in quotes # Booleans processing is switched on, check for special boolean # values and convert # here we compare case insensitive because # "shopt nocasematch" case "$VAL" in yes | true | on ) VAL=1 ;; no | false | off ) VAL=0 ;; esac fi # enclose the value in single quotes and escape any # single quotes and backslashes that may be in the value VAL="${VAL//\\/\\\\}" VAL="\$'${VAL//\'/\'}'" eval "$VARNAME=$VAL" done <"${INI_FILE}" # return also the number of parsed sections eval "$INI_NUMSECTIONS_VARNAME=$SECTIONS_NUM" cleanup_bash }