update zookeeper

Signed-off-by: Jess Frazelle <jess@oxide.computer>

consul/Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.12 as builder
+FROM golang:latest as builder
 MAINTAINER Jessica Frazelle <jess@linux.com>
 
 ENV PATH /go/bin:/usr/local/go/bin:$PATH

powershell/Dockerfile

@@ -20,6 +20,7 @@ RUN cd /usr/src \
 	&& dpkg -i /tmp/powershell.deb \
 	&& ln -snf "/opt/microsoft/powershell/7/pwsh" /usr/bin/pwsh \
 	&& apt-get install -fy \
-	&& rm -rf /var/lib/apt/lists/* /usr/src/* /tmp/powershell.deb
+	&& rm -rf /var/lib/apt/lists/* /usr/src/* /tmp/powershell.deb \
+	&& which pwsh
 
 ENTRYPOINT [ "/usr/bin/pwsh" ]

zookeeper/3.5/Dockerfile

@@ -1,4 +1,4 @@
-FROM java:8-alpine
+FROM openjdk:8-alpine
 
 ENV ZOOKEEPER_VERSION 3.5.5
 ENV PATH $PATH:/opt/zookeeper/bin/