Fixes Bug 1492

Adds ssh-keygen to the final layer as it is needed at runtime.

Change-Id: I2bd773a388b0d26b453ebb5053f3f07e9473996a
Signed-off-by: beierlm <mark.beierl@canonical.com>

docker/LCM/Dockerfile

@@ -29,7 +29,8 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get --yes update && \
 
 RUN DEBIAN_FRONTEND=noninteractive apt-get --yes install \
     apt-transport-https=1.6.12ubuntu0.2 \
-    gnupg2=2.2.4-1ubuntu1.4
+    gnupg2=2.2.4-1ubuntu1.4 \
+    openssh-client
 
 RUN 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 \
@@ -80,6 +81,8 @@ COPY --from=INSTALL /usr/bin/kubectl /usr/bin/kubectl
 COPY --from=INSTALL /usr/local/bin/helm /usr/local/bin/helm
 COPY --from=INSTALL /usr/local/bin/helm3 /usr/local/bin/helm3
 COPY --from=INSTALL /usr/local/bin/juju /usr/local/bin/juju
+COPY --from=INSTALL /usr/bin/ssh-keygen /usr/bin/ssh-keygen
+COPY --from=INSTALL /usr/lib/x86_64-linux-gnu/ /usr/lib/x86_64-linux-gnu/
 
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