initial commit

image-entry.d/99-cleanup-env.envsh

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+#!/bin/sh
+
+## Angie: unset core variables
+unset ANGIE ANGIE_BPF_MAPS
+
+IEP_RETAIN_ENV=$(gobool_to_int "${IEP_RETAIN_ENV:-0}" 0)
+
+if [ "${IEP_RETAIN_ENV}" = 1 ] ; then
+	log_always "NOT removing following variables:"
+	sed -E '/^./s,^,  ,' >&2
+	echo >&2
+else
+	unset __set
+	__set="$-"
+	set +e
+
+	unset __env __env_print
+	while read -r __env ; do
+		[ -n "${__env}" ] || continue
+
+		case "${__env}" in
+		\'* | \"* )
+			log "skipping variable (malformed): ${__env}" >&2
+			continue
+		;;
+		esac
+
+		if [ "${IEP_DEBUG}" = 1 ] ; then
+			__env_print="${__env}="$(printenv "${__env}")
+			__env_print=$(env printf '%q' "${__env_print}")
+			log_always "unsetting variable: ${__env_print}"
+		else
+			log "unsetting variable: ${__env}"
+		fi
+
+		unset "${__env}"
+	done
+	unset __env __env_print
+
+	[ -z "${__set}" ] || set -"${__set}"
+	unset __set
+fi <<-EOF
+$(
+	set +e
+	cat /proc/$$/environ \
+	| sed -zEn '/^([^=]+).*$/s//\1/p' \
+	| xargs -0r printf '%q\n' \
+	| {
+		## retain variables defined in ".core_worker_env" configuration key
+		## (if it was specified somewhere in dictionaries - either yaml or json)
+		f="${target_root}/autoconf/core-worker-env.txt"
+		[ -s "$f" ] || exec cat
+		grep -Fxv -f "$f"
+	} \
+	| {
+		## remove environment variables:
+		## 1. variables starting with "NGX" as they are used by configuration templates
+		## 2. variables containing "_SERVICE" or "_PORT" as they are came from
+		##    container orchestration
+		grep -E \
+		  -e '^NGX' \
+		  -e '_(SERVICE|PORT)' \
+
+	} \
+	| sort -uV
+)
+EOF