1
0
angie-conv-image/image-entry.sh

167 lines
4.0 KiB
Bash
Raw Normal View History

2024-09-17 14:11:00 +03:00
#!/bin/sh
set -f
[ -n "${IEP_TRACE}" ] || IEP_TRACE=0
[ "${IEP_TRACE}" = 1 ] || IEP_TRACE=0
[ "${IEP_TRACE}" = 0 ] || echo "# trace: $(date +'%Y-%m-%d %H:%M:%S.%03N %z'): start" >&2
iep_preserve_env() {
## preserve LD_PRELOAD
unset __IEP_LD_PRELOAD
__IEP_LD_PRELOAD="${LD_PRELOAD:-}"
unset LD_PRELOAD
## glibc: preserve GLIBC_TUNABLES
unset __IEP_GLIBC_TUNABLES
__IEP_GLIBC_TUNABLES="${GLIBC_TUNABLES:-}"
unset GLIBC_TUNABLES
## glibc: preserve MALLOC_ARENA_MAX
unset __IEP_MALLOC_ARENA_MAX
__IEP_MALLOC_ARENA_MAX="${MALLOC_ARENA_MAX:-2}"
export MALLOC_ARENA_MAX=2
## jemalloc: preserve MALLOC_CONF
unset __IEP_MALLOC_CONF
__IEP_MALLOC_CONF="${MALLOC_CONF:-}"
unset MALLOC_CONF
}
iep_prepare_env() {
## Angie: unset core variable
unset ANGIE ANGIE_BPF_MAPS
## dumb-init: preserve args
unset IEP_DUMB_INIT_ARGS
IEP_DUMB_INIT_ARGS="${DUMB_INIT_ARGS:-}"
unset DUMB_INIT_ARGS
if [ "${DUMB_INIT_SETSID:-}" = 0 ] ; then
IEP_DUMB_INIT_ARGS="-c${IEP_DUMB_INIT_ARGS:+ }${IEP_DUMB_INIT_ARGS}"
fi
unset DUMB_INIT_SETSID
}
iep_restore_env() {
unset IEP_DEBUG IEP_VERBOSE IEP_TRACE IEP_ROOT
unset IEP_LOCAL_OVERRIDE IEP_RETAIN_MERGED_TREE IEP_RETAIN_ENV
## restore LD_PRELOAD
if [ -n "${__IEP_LD_PRELOAD:-}" ] ; then
export LD_PRELOAD="${__IEP_LD_PRELOAD}"
fi
unset __IEP_LD_PRELOAD
## glibc: restore GLIBC_TUNABLES
if [ -n "${__IEP_GLIBC_TUNABLES:-}" ] ; then
export GLIBC_TUNABLES="${__IEP_GLIBC_TUNABLES}"
fi
unset __IEP_GLIBC_TUNABLES
## glibc: restore MALLOC_ARENA_MAX
if [ -n "${__IEP_MALLOC_ARENA_MAX:-}" ] ; then
export MALLOC_ARENA_MAX="${__IEP_MALLOC_ARENA_MAX}"
fi
unset __IEP_MALLOC_ARENA_MAX
## jemalloc: restore MALLOC_CONF
if [ -n "${__IEP_MALLOC_CONF:-}" ] ; then
export MALLOC_CONF="${__IEP_MALLOC_CONF}"
fi
unset __IEP_MALLOC_CONF
}
iep_preserve_env
iep_prepare_env
## early setup TMPDIR (affects "mktemp")
export TMPDIR=/run/angie/tmp
[ -d "${TMPDIR}" ] || install -d -m 03777 "${TMPDIR}"
## RFC: no need to run entire entrypoint for custom command
# case "$1" in
# angie | */angie ) ;;
# * )
# iep_restore_env
# exec "$@"
# ;;
# esac
unset __IEP_SRC ; __IEP_SRC="${0##*/}"
. /image-entry.d/00-common.envsh
IEP_INIT=$(gobool_to_int "${IEP_INIT:-0}" 0)
# unexport IEP_INIT
unset x ; x="${IEP_INIT}" ; unset IEP_INIT ; IEP_INIT="$x" ; unset x
# IEP_TRACE=$(gobool_to_int "${IEP_TRACE:-0}" 0)
IEP_DEBUG=$(gobool_to_int "${IEP_DEBUG:-0}" 0)
IEP_VERBOSE=$(gobool_to_int "${IEP_VERBOSE:-${IEP_DEBUG}}" "${IEP_DEBUG}")
export IEP_TRACE IEP_DEBUG IEP_VERBOSE
## run parts (if any)
unset __IEP_SCRIPT
while read -r __IEP_SCRIPT ; do
[ -n "${__IEP_SCRIPT}" ] || continue
[ -f "${__IEP_SCRIPT}" ] || continue
case "${__IEP_SCRIPT}" in
*.envsh )
if ! [ -x "${__IEP_SCRIPT}" ] ; then
log "NOT sourcing ${__IEP_SCRIPT} - not executable"
continue
fi
[ "${IEP_TRACE}" = 0 ] || echo "# trace: $(date +'%Y-%m-%d %H:%M:%S.%03N %z'): source ${__IEP_SCRIPT}" >&2
log "sourcing ${__IEP_SCRIPT}"
__IEP_SRC="${__IEP_SCRIPT}"
. "${__IEP_SCRIPT}"
__IEP_SRC="${0##*/}"
;;
* )
if ! [ -x "${__IEP_SCRIPT}" ] ; then
log "NOT running ${__IEP_SCRIPT} - not executable"
continue
fi
[ "${IEP_TRACE}" = 0 ] || echo "# trace: $(date +'%Y-%m-%d %H:%M:%S.%03N %z'): run ${__IEP_SCRIPT}" >&2
log "running ${__IEP_SCRIPT}"
"${__IEP_SCRIPT}"
;;
esac
done <<EOF
$(
if [ -d /image-entry ] ; then
overlay-dir-list.sh /image-entry.d /image-entry
else
find /image-entry.d/ -follow -type f | sort -V
fi
)
EOF
[ "${IEP_TRACE}" = 0 ] || echo "# trace: $(date +'%Y-%m-%d %H:%M:%S.%03N %z'): end" >&2
if [ "${IEP_DEBUG}" = 1 ] ; then
log_always "ready to run application: $*"
else
log_always "ready to run application"
fi
echo >&2
iep_restore_env
## variables that are not so easily unsettable
unset __IEP_ENV
for i in '_' 'SHLVL' ; do
__IEP_ENV="${__IEP_ENV:-}${__IEP_ENV:+ }-u $i"
done
if [ "${IEP_INIT}" = 0 ] ; then
exec \
${__IEP_ENV:+ env ${__IEP_ENV} } \
"$@"
else
exec \
${__IEP_ENV:+ env ${__IEP_ENV} } \
dumb-init ${IEP_DUMB_INIT_ARGS} \
"$@"
fi