Install SSM plugin.

Dockerfile

@@ -27,6 +27,7 @@ COPY --chown=root:root preferences.d/* /etc/apt/preferences.d/
 # hadolint ignore=DL3008,DL3013,DL3016,DL3027,DL4001
 RUN apt-get update && \
     curl --location --silent --fail --show-error https://github.com/kubernetes/kompose/releases/download/v1.26.1/kompose_1.26.1_amd64.deb --output /tmp/kompose.deb && \
+    curl --location --silent --fail --show-error https://s3.amazonaws.com/session-manager-downloads/plugin/latest/ubuntu_64bit/session-manager-plugin.deb --output /tmp/session-manager-plugin.deb && \
     DEBIAN_FRONTEND=noninteractive apt-get install --yes --no-install-recommends \
         adb \
         apache2-utils \
@@ -145,6 +146,7 @@ RUN apt-get update && \
         reprepro \
         rsync \
         ruby-dev \
+        /tmp/session-manager-plugin.deb \
         sharutils \
         shellcheck \
         signify-openbsd \