File size: 1,622 Bytes
422bbda b795535 eea264b cb45783 e079f18 b795535 422bbda eea264b b795535 cb45783 b795535 e079f18 cb45783 e079f18 cb45783 e079f18 b795535 e079f18 422bbda e079f18 cb45783 eea264b e079f18 b795535 e079f18 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 | #!/bin/sh
set -eu
: "${SUPERVISORD_BIN:=/usr/bin/supervisord}"
: "${SUPERVISOR_CONF_TEMPLATE:=/etc/supervisord.conf.template}"
: "${APP_BINARY_PATH:=/app/app}"
: "${RUNTIME_DIR:=/tmp/runtime}"
: "${SUPERVISOR_CONF:=/etc/supervisord.conf}"
: "${SUPERVISOR_PROGRAM_NAME:=app}"
: "${OPEN_FILE_LIMIT:=65535}"
export RUNTIME_DIR
shell_quote() {
printf "'%s'" "$(printf '%s' "$1" | sed "s/'/'\"'\"'/g")"
}
escape_sed_replacement() {
printf '%s' "$1" | sed 's/[\/&]/\\&/g'
}
write_supervisord_conf() {
mkdir -p "$(dirname "$SUPERVISOR_CONF")"
app_program_name=$(escape_sed_replacement "$SUPERVISOR_PROGRAM_NAME")
sed \
-e "s/__APP_PROGRAM__/$app_program_name/g" \
"$SUPERVISOR_CONF_TEMPLATE" > "$SUPERVISOR_CONF"
}
write_run_app_script() {
run_app_script="$RUNTIME_DIR/run-app.sh"
{
printf '#!/bin/sh\n'
printf 'set -eu\n'
printf 'exec "%s"' "$APP_BINARY_PATH"
for arg in "$@"; do
printf ' %s' "$(shell_quote "$arg")"
done
printf '\n'
} > "$run_app_script"
chmod +x "$run_app_script"
}
prepare_runtime_environment() {
ulimit -n "$OPEN_FILE_LIMIT"
mkdir -p "$RUNTIME_DIR"
rm -f "$RUNTIME_DIR/supervisor.sock" "$RUNTIME_DIR/supervisord.pid"
}
validate_app_binary_or_exit() {
if [ ! -x "$APP_BINARY_PATH" ]; then
echo "错误: APP_BINARY_PATH 指向的文件不存在或不可执行: $APP_BINARY_PATH" >&2
exit 1
fi
}
start_supervisord() {
exec "$SUPERVISORD_BIN" -c "$SUPERVISOR_CONF"
}
main() {
prepare_runtime_environment
validate_app_binary_or_exit
write_supervisord_conf
write_run_app_script "$@"
start_supervisord
}
main "$@"
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