Install Juju CLI in LCM container

Installs the Juju/K8s CLI into the docker container with LCM

Change-Id: I78a3be7df47eff96332c8e7f91ef1dcefbfd73b5
Signed-off-by: Adam Israel <adam.israel@canonical.com>
diff --git a/docker/LCM/Dockerfile b/docker/LCM/Dockerfile
index 8b2cee6..7a1f4a2 100644
--- a/docker/LCM/Dockerfile
+++ b/docker/LCM/Dockerfile
@@ -55,7 +55,7 @@
 #     && cd modules/libjuju && python3 setup.py develop && cd ../.. \
 #     && python3 -m pip install -U -r requirements.txt
 
-RUN apt-get update && apt-get install -y curl \
+RUN apt-get update && apt-get install -y curl xz-utils \
     && apt-get update && apt-get install -y apt-transport-https \
     && curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key add - \
     && echo "deb https://apt.kubernetes.io/ kubernetes-xenial main" | tee -a /etc/apt/sources.list.d/kubernetes.list \
@@ -66,6 +66,10 @@
     && mv linux-amd64/helm /usr/local/bin/helm \
     && rm -r linux-amd64/
 
+RUN curl -L https://launchpad.net/juju/2.7/2.7.0/+download/juju-2.7.0-k8s.tar.xz --output juju-2.7.0-k8s.tar.xz \
+    && tar -xvf juju-2.7.0-k8s.tar.xz \
+    && mv juju /usr/local/bin/juju
+
 ARG REPOSITORY_BASE=http://osm-download.etsi.org/repository/osm/debian
 ARG RELEASE=ReleaseFOUR-daily
 ARG REPOSITORY_KEY=OSM%20ETSI%20Release%20Key.gpg
@@ -124,6 +128,7 @@
 # k8s
 ENV OSMLCM_VCA_HELMPATH    /usr/local/bin/helm
 ENV OSMLCM_VCA_KUBECTLPATH /usr/bin/kubectl
+ENV OSMLCM_VCA_JUJUPATH    /usr/local/bin/juju
 
 # logs
 # ENV OSMLCM_GLOBAL_LOGFILE  /app/log/lcm.log