Add redundant R key servers. (apache#11489)

TuKJet · Jul 2, 2018 · cb4d310 · cb4d310
1 parent 84b9b41
commit cb4d310
Showing 1 changed file with 8 additions and 2 deletions.
diff --git a/ci/docker/install/ubuntu_r.sh b/ci/docker/install/ubuntu_r.sh
@@ -23,8 +23,14 @@
 set -ex
 # install libraries for mxnet's r package on ubuntu
 echo "deb http://cran.rstudio.com/bin/linux/ubuntu trusty/" >> /etc/apt/sources.list
-gpg --keyserver keyserver.ubuntu.com --recv-key E084DAB9
-gpg -a --export E084DAB9 | apt-key add -
+
+key=E084DAB9
+
+gpg --keyserver keyserver.ubuntu.com --recv-key $key || \
+    gpg --keyserver keyserver.pgp.com --recv-keys $key || \
+    gpg --keyserver ha.pool.sks-keyservers.net --recv-keys $key ;
+
+gpg -a --export $key | apt-key add -
 
 apt-get update
 apt-get install -y --allow-unauthenticated r-base r-base-dev libxml2-dev libssl-dev libxt-dev