diff --git a/.travis.yml b/.travis.yml
index 5a089b2..cf9cc6a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -23,12 +23,8 @@ install: make ${IMAGE_TO_BUILD}
 script: make test IMAGE_TO_TEST=${IMAGE_TO_TEST}
 
 before_deploy:
-  # decrypt the github deploy key
-  - openssl aes-256-cbc -K $encrypted_cd2beb64619c_key -iv $encrypted_cd2beb64619c_iv
-    -in .travis/github_tags_push_deploy_key.enc -out .travis/github_tags_push_deploy_key -d
-  - chmod 600 .travis/github_tags_push_deploy_key
-  - eval "$(ssh-agent -s)"
-  - ssh-add .travis/github_tags_push_deploy_key
+  - git config --global user.email "presto-oss@users.noreply.github.com" && git config --global user.name "Presto Bot"
+  - echo "machine github.com login presto-oss password ${PRESTOOSS_PAT} > ~/.netrc
   - docker login --username=${DOCKERHUB_LOGIN} --password=${DOCKERHUB_PASSWORD}
 
 # Publish snapshots to Dockerhub for commits tagged `latest-snapshot-*`
diff --git a/.travis/github_tags_push_deploy_key.enc b/.travis/github_tags_push_deploy_key.enc
deleted file mode 100644
index e0b2379..0000000
Binary files a/.travis/github_tags_push_deploy_key.enc and /dev/null differ
diff --git a/Makefile b/Makefile
index 51f550b..336e438 100644
--- a/Makefile
+++ b/Makefile
@@ -32,8 +32,8 @@ ORGDIR=prestodb
 # indirectly from this one, and you should pass those variables to the
 # Dockerfiles using ARG and --build-arg.
 #
-JDK_URL := http://download.oracle.com/otn-pub/java/jdk/8u181-b13/96a7b8442fe848ef90c96a2fad6ed6d1/jdk-8u181-linux-x64.rpm
-JDK_PATH := /usr/java/jdk1.8.0_181-amd64
+JDK_URL := https://cdn.azul.com/zulu/bin/zulu8.52.0.23-ca-jdk8.0.282-linux_x64.tar.gz
+JDK_PATH := /usr/java/zulu8.52.0.23-ca-jdk8.0.282-linux_x64
 JDK_PATH_BUILD_ARGS := \
 	--build-arg JDK_PATH=$(JDK_PATH)
 
diff --git a/prestodb/cdh5.12-hive/Dockerfile b/prestodb/cdh5.12-hive/Dockerfile
index 2a76cc3..cbb7d00 100644
--- a/prestodb/cdh5.12-hive/Dockerfile
+++ b/prestodb/cdh5.12-hive/Dockerfile
@@ -17,7 +17,7 @@ MAINTAINER Presto community <https://prestodb.io/community.html>
 RUN ln -snf "/usr/share/zoneinfo/Asia/Kathmandu" /etc/localtime && echo "Asia/Kathmandu" > /etc/timezone
 
 # Setup CDH repo, pin the CDH distribution to a concrete version
-RUN wget -nv https://archive.cloudera.com/cdh5/redhat/6/x86_64/cdh/cloudera-cdh5.repo -P /etc/yum.repos.d \
+RUN wget -v https://archive.cloudera.com/cdh5/redhat/6/x86_64/cdh/cloudera-cdh5.repo -P /etc/yum.repos.d \
   && rpm --import https://archive.cloudera.com/cdh5/redhat/6/x86_64/cdh/RPM-GPG-KEY-cloudera \
   && sed -i '/^baseurl=/c\baseurl=https://archive.cloudera.com/cdh5/redhat/6/x86_64/cdh/5.12.2/' /etc/yum.repos.d/cloudera-cdh5.repo
 
diff --git a/prestodb/centos6-oj8/CentOS-Base.repo b/prestodb/centos6-oj8/CentOS-Base.repo
new file mode 100644
index 0000000..17157f2
--- /dev/null
+++ b/prestodb/centos6-oj8/CentOS-Base.repo
@@ -0,0 +1,25 @@
+[base]
+name=CentOS-$releasever - Base
+# mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os&infra=$infra
+# baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/
+baseurl=https://vault.centos.org/6.10/os/$basearch/
+gpgcheck=1
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
+
+# released updates
+[updates]
+name=CentOS-$releasever - Updates
+# mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates&infra=$infra
+# baseurl=http://mirror.centos.org/centos/$releasever/updates/$basearch/
+baseurl=https://vault.centos.org/6.10/updates/$basearch/
+gpgcheck=1
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
+
+# additional packages that may be useful
+[extras]
+name=CentOS-$releasever - Extras
+# mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras&infra=$infra
+# baseurl=http://mirror.centos.org/centos/$releasever/extras/$basearch/
+baseurl=https://vault.centos.org/6.10/extras/$basearch/
+gpgcheck=1
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
diff --git a/prestodb/centos6-oj8/Dockerfile b/prestodb/centos6-oj8/Dockerfile
index 4ad95d1..19e2d26 100644
--- a/prestodb/centos6-oj8/Dockerfile
+++ b/prestodb/centos6-oj8/Dockerfile
@@ -16,36 +16,21 @@ MAINTAINER Presto community <https://prestodb.io/community.html>
 ARG JDK_URL
 ARG JDK_PATH
 
+COPY CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo
+
 # Install Oracle Java and presto-admin dependences (already has python 2.6)
 RUN \
     set -xeu && \
     yum install -y wget && \
     # install and trim Oracle JDK
-    wget -nv --header "Cookie: oraclelicense=accept-securebackup-cookie" $JDK_URL -O jdk.rpm && \
-    rpm -ivh jdk.rpm && rm jdk.rpm && \
-    rm -r $JDK_PATH/*src.zip \
-           $JDK_PATH/lib/missioncontrol \
-           $JDK_PATH/lib/visualvm \
-           $JDK_PATH/lib/*javafx* \
-           $JDK_PATH/jre/lib/plugin.jar \
-           $JDK_PATH/jre/lib/ext/jfxrt.jar \
-           $JDK_PATH/jre/bin/javaws \
-           $JDK_PATH/jre/lib/javaws.jar \
-           $JDK_PATH/jre/lib/desktop \
-           $JDK_PATH/jre/plugin \
-           $JDK_PATH/jre/lib/deploy* \
-           $JDK_PATH/jre/lib/*javafx* \
-           $JDK_PATH/jre/lib/*jfx* \
-           $JDK_PATH/jre/lib/amd64/libdecora_sse.so \
-           $JDK_PATH/jre/lib/amd64/libprism_*.so \
-           $JDK_PATH/jre/lib/amd64/libfxplugins.so \
-           $JDK_PATH/jre/lib/amd64/libglass.so \
-           $JDK_PATH/jre/lib/amd64/libgstreamer-lite.so \
-           $JDK_PATH/jre/lib/amd64/libjavafx*.so \
-           $JDK_PATH/jre/lib/amd64/libjfx*.so && \
-    \
+    wget -nv $JDK_URL -O jdk.tgz && \
+    mkdir -p $JDK_PATH && \
+    tar xvfz jdk.tgz -C $JDK_PATH --strip-components=1 && \
+    $JDK_PATH/bin/java -version && \
     # make java fixed (so further layers don't accidentally override it)
-    update-alternatives --set java $JDK_PATH/jre/bin/java && \
+    update-alternatives --help && \
+    alternatives --help && \
+    update-alternatives --install /usr/local/bin/java java $JDK_PATH/jre/bin/java 0 && \
     \
     # install supervisor
     yum install -y setuptools epel-release && \