Adjust gpg code to kill daemons, cutting down on race conditions

Author: J0WI

3.2/32bit/Dockerfile

@@ -24,6 +24,7 @@ RUN set -ex; \
 	export GNUPGHOME="$(mktemp -d)"; \
 	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4; \
 	gpg --batch --verify /usr/local/bin/gosu.asc /usr/local/bin/gosu; \
+	gpgconf --kill all; \
 	rm -r "$GNUPGHOME" /usr/local/bin/gosu.asc; \
 	chmod +x /usr/local/bin/gosu; \
 	gosu nobody true; \

3.2/Dockerfile

@@ -24,6 +24,7 @@ RUN set -ex; \
 	export GNUPGHOME="$(mktemp -d)"; \
 	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4; \
 	gpg --batch --verify /usr/local/bin/gosu.asc /usr/local/bin/gosu; \
+	gpgconf --kill all; \
 	rm -r "$GNUPGHOME" /usr/local/bin/gosu.asc; \
 	chmod +x /usr/local/bin/gosu; \
 	gosu nobody true; \

4.0/32bit/Dockerfile

@@ -24,6 +24,7 @@ RUN set -ex; \
 	export GNUPGHOME="$(mktemp -d)"; \
 	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4; \
 	gpg --batch --verify /usr/local/bin/gosu.asc /usr/local/bin/gosu; \
+	gpgconf --kill all; \
 	rm -r "$GNUPGHOME" /usr/local/bin/gosu.asc; \
 	chmod +x /usr/local/bin/gosu; \
 	gosu nobody true; \

4.0/Dockerfile

@@ -24,6 +24,7 @@ RUN set -ex; \
 	export GNUPGHOME="$(mktemp -d)"; \
 	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4; \
 	gpg --batch --verify /usr/local/bin/gosu.asc /usr/local/bin/gosu; \
+	gpgconf --kill all; \
 	rm -r "$GNUPGHOME" /usr/local/bin/gosu.asc; \
 	chmod +x /usr/local/bin/gosu; \
 	gosu nobody true; \