Use "/etc/apt/trusted.gpg.d" instead of "apt-key adv"

> Note: Instead of using this command a keyring should be placed
> directly in the /etc/apt/trusted.gpg.d/ directory with a
> descriptive name and either "gpg" or "asc" as file extension.

https://manpages.debian.org/cgi-bin/man.cgi?query=apt-key&manpath=Debian+testing+stretch

Author: tianon

9.2/Dockerfile

@@ -25,7 +25,16 @@ ENV LANG en_US.utf8
 
 RUN mkdir /docker-entrypoint-initdb.d
 
-RUN apt-key adv --keyserver ha.pool.sks-keyservers.net --recv-keys B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8
+RUN set -ex; \
+# pub   4096R/ACCC4CF8 2011-10-13 [expires: 2019-07-02]
+#       Key fingerprint = B97B 0AFC AA1A 47F0 44F2  44A0 7FCC 7D46 ACCC 4CF8
+# uid                  PostgreSQL Debian Repository
+	key='B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8'; \
+	export GNUPGHOME="$(mktemp -d)"; \
+	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key"; \
+	gpg --export "$key" > /etc/apt/trusted.gpg.d/postgres.gpg; \
+	rm -r "$GNUPGHOME"; \
+	apt-key list
 
 ENV PG_MAJOR 9.2
 ENV PG_VERSION 9.2.19-1.pgdg80+1

9.3/Dockerfile

@@ -25,7 +25,16 @@ ENV LANG en_US.utf8
 
 RUN mkdir /docker-entrypoint-initdb.d
 
-RUN apt-key adv --keyserver ha.pool.sks-keyservers.net --recv-keys B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8
+RUN set -ex; \
+# pub   4096R/ACCC4CF8 2011-10-13 [expires: 2019-07-02]
+#       Key fingerprint = B97B 0AFC AA1A 47F0 44F2  44A0 7FCC 7D46 ACCC 4CF8
+# uid                  PostgreSQL Debian Repository
+	key='B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8'; \
+	export GNUPGHOME="$(mktemp -d)"; \
+	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key"; \
+	gpg --export "$key" > /etc/apt/trusted.gpg.d/postgres.gpg; \
+	rm -r "$GNUPGHOME"; \
+	apt-key list
 
 ENV PG_MAJOR 9.3
 ENV PG_VERSION 9.3.15-1.pgdg80+1

9.4/Dockerfile

@@ -25,7 +25,16 @@ ENV LANG en_US.utf8
 
 RUN mkdir /docker-entrypoint-initdb.d
 
-RUN apt-key adv --keyserver ha.pool.sks-keyservers.net --recv-keys B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8
+RUN set -ex; \
+# pub   4096R/ACCC4CF8 2011-10-13 [expires: 2019-07-02]
+#       Key fingerprint = B97B 0AFC AA1A 47F0 44F2  44A0 7FCC 7D46 ACCC 4CF8
+# uid                  PostgreSQL Debian Repository
+	key='B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8'; \
+	export GNUPGHOME="$(mktemp -d)"; \
+	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key"; \
+	gpg --export "$key" > /etc/apt/trusted.gpg.d/postgres.gpg; \
+	rm -r "$GNUPGHOME"; \
+	apt-key list
 
 ENV PG_MAJOR 9.4
 ENV PG_VERSION 9.4.10-1.pgdg80+1

9.5/Dockerfile

@@ -25,7 +25,16 @@ ENV LANG en_US.utf8
 
 RUN mkdir /docker-entrypoint-initdb.d
 
-RUN apt-key adv --keyserver ha.pool.sks-keyservers.net --recv-keys B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8
+RUN set -ex; \
+# pub   4096R/ACCC4CF8 2011-10-13 [expires: 2019-07-02]
+#       Key fingerprint = B97B 0AFC AA1A 47F0 44F2  44A0 7FCC 7D46 ACCC 4CF8
+# uid                  PostgreSQL Debian Repository
+	key='B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8'; \
+	export GNUPGHOME="$(mktemp -d)"; \
+	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key"; \
+	gpg --export "$key" > /etc/apt/trusted.gpg.d/postgres.gpg; \
+	rm -r "$GNUPGHOME"; \
+	apt-key list
 
 ENV PG_MAJOR 9.5
 ENV PG_VERSION 9.5.5-1.pgdg80+1

9.6/Dockerfile

@@ -25,7 +25,16 @@ ENV LANG en_US.utf8
 
 RUN mkdir /docker-entrypoint-initdb.d
 
-RUN apt-key adv --keyserver ha.pool.sks-keyservers.net --recv-keys B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8
+RUN set -ex; \
+# pub   4096R/ACCC4CF8 2011-10-13 [expires: 2019-07-02]
+#       Key fingerprint = B97B 0AFC AA1A 47F0 44F2  44A0 7FCC 7D46 ACCC 4CF8
+# uid                  PostgreSQL Debian Repository
+	key='B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8'; \
+	export GNUPGHOME="$(mktemp -d)"; \
+	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key"; \
+	gpg --export "$key" > /etc/apt/trusted.gpg.d/postgres.gpg; \
+	rm -r "$GNUPGHOME"; \
+	apt-key list
 
 ENV PG_MAJOR 9.6
 ENV PG_VERSION 9.6.1-2.pgdg80+1

Dockerfile-debian.template

@@ -25,7 +25,16 @@ ENV LANG en_US.utf8
 
 RUN mkdir /docker-entrypoint-initdb.d
 
-RUN apt-key adv --keyserver ha.pool.sks-keyservers.net --recv-keys B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8
+RUN set -ex; \
+# pub   4096R/ACCC4CF8 2011-10-13 [expires: 2019-07-02]
+#       Key fingerprint = B97B 0AFC AA1A 47F0 44F2  44A0 7FCC 7D46 ACCC 4CF8
+# uid                  PostgreSQL Debian Repository
+	key='B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8'; \
+	export GNUPGHOME="$(mktemp -d)"; \
+	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key"; \
+	gpg --export "$key" > /etc/apt/trusted.gpg.d/postgres.gpg; \
+	rm -r "$GNUPGHOME"; \
+	apt-key list
 
 ENV PG_MAJOR %%PG_MAJOR%%
 ENV PG_VERSION %%PG_VERSION%%