Enable variable checks and add comment

config/dovecot/APKBUILD

@@ -4,7 +4,7 @@
 . ../APKBUILD-config.template
 
 pkgver=2021.06.01.03
-pkgrel=0
+pkgrel=1
 depends="dovecot-lmtpd dovecot-pgsql redxen-secret-letsencrypt-chain redxen-secret-letsencrypt-private"
 _rx_dovecot_base_src="
 	dovecot.conf

config/gitea/APKBUILD

@@ -11,10 +11,15 @@ source="
 	secret
 "
 
-prepare() {
-	default_prepare
-	install -D "redxen.ini" "redxen-mod.ini"
+build() {
 	. secret
+	: "${POSTGRESQL_GITEA_PASSWORD:?'PostgreSQL database access password missing'}"
+	: "${GITEA_SECRET_KEY:?'Gitea secret key is missing'}"
+	: "${GITEA_INTERNAL_TOKEN:?'Gitea internal token is missing'}"
+	: "${GITEA_MAILER_PASSWD:?'Gitea SMTP password is missing'}"
+	: "${GITEA_OAUTH_JWT_TOKEN:?'Gitea OAuth token is missing'}"
+
+	cp redxen.ini redxen-mod.ini
 	rx_replace "POSTGRESQL_GITEA_PASSWORD" "$POSTGRESQL_GITEA_PASSWORD" "redxen-mod.ini"
 	rx_replace "GITEA_SECRET_KEY" "$GITEA_SECRET_KEY" "redxen-mod.ini"
 	rx_replace "GITEA_INTERNAL_TOKEN" "$GITEA_INTERNAL_TOKEN" "redxen-mod.ini"

config/telegraf/APKBUILD

@@ -4,8 +4,8 @@
 . ../APKBUILD-config.template
 
 pkgver=2021.06.06.03
-pkgrel=0
-options=""
+pkgrel=1
+options="" # Disables defaults, enabling checks
 checkdepends="telegraf"
 source="
 	main.conf
@@ -28,6 +28,8 @@ done
 
 build() {
 	. secret
+	: "${POSTGRESQL_PASSWORD:?'PostgreSQL database access password missing'}"
+
 	cp postgresql.conf postgresql.conf-mod
 	rx_replace "POSTGRESQL_PASSWORD" "$POSTGRESQL_PASSWORD" "postgresql.conf-mod"
 }