Add "pgp-happy-eyeballs" in Travis to help cut down on gpg-related issues

Author: tianon

.travis.yml

@@ -12,12 +12,18 @@ install:
 
 before_script:
   - env | sort
+  - wget -qO- 'https://github.com/tianon/pgp-happy-eyeballs/raw/master/hack-my-builds.sh' | bash
   - cd "$VERSION"
   - image="ghost:$VERSION-$VARIANT"
 
 script:
-  - travis_retry docker build -t "$image" "$VARIANT"
-  - ~/official-images/test/run.sh "$image"
+  - |
+    (
+      set -Eeuo pipefail
+      set -x
+      docker build -t "$image" .
+      ~/official-images/test/run.sh "$image"
+    )
 
 after_script:
   - docker images

0/debian/Dockerfile

@@ -12,6 +12,7 @@ RUN set -x \
 	&& export GNUPGHOME="$(mktemp -d)" \
 	&& gpg --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4 \
 	&& gpg --batch --verify /usr/local/bin/gosu.asc /usr/local/bin/gosu \
+	&& { command -v gpgconf && gpgconf --kill all || :; } \
 	&& rm -r "$GNUPGHOME" /usr/local/bin/gosu.asc \
 	&& chmod +x /usr/local/bin/gosu \
 	&& gosu nobody true

1/debian/Dockerfile

@@ -10,6 +10,7 @@ RUN set -x \
 	&& export GNUPGHOME="$(mktemp -d)" \
 	&& gpg --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4 \
 	&& gpg --batch --verify /usr/local/bin/gosu.asc /usr/local/bin/gosu \
+	&& { command -v gpgconf && gpgconf --kill all || :; } \
 	&& rm -r "$GNUPGHOME" /usr/local/bin/gosu.asc \
 	&& chmod +x /usr/local/bin/gosu \
 	&& gosu nobody true