Add echo server and entrypointadd-echoserver

2 files changed, 26 insertions, 2 deletions

diff --git a/src/cluster/Dockerfile b/src/cluster/Dockerfile
index ac45daf..3350e38 100644
--- a/src/cluster/Dockerfile
+++ b/src/cluster/Dockerfile
@@ -1,9 +1,23 @@
 FROM gcr.io/google-containers/pause:latest
+FROM gcr.io/google_containers/echoserver:1.0
 FROM registry.gitlab.com/grumps/grumpy-containers/base:${BASE_VER}
 ENV DEBIAN_FRONTEND=noninteractive
+
+RUN useradd -s /usr/sbin/nologin \
+            --create-home \
+            --home-dir /opt/app \
+            app
+
 RUN apt-get update -y \
         && apt-get upgrade -y \
-                && apt-get install -y curl dnsutils jq vim kubernetes-client tmux ldap-utils ncat nmap hping3
+                && apt-get install -y curl dnsutils jq vim kubernetes-client tmux ldap-utils ncat nmap hping3 python3-minimal unattended-upgrades \
+                && unattended-upgrades
 
 COPY --from=0 /pause /usr/local/bin/pause
-CMD ["/usr/local/bin/pause"]
+COPY --from=1 echoserver.py /usr/local/bin/echoserver
+COPY entrypoint.sh /usr/local/bin/entrypoint.sh
+
+USER app
+WORKDIR /opt/app
+ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]
+CMD ["pause"]
diff --git a/src/cluster/entrypoint.sh b/src/cluster/entrypoint.sh
new file mode 100755
index 0000000..f8c72f8
--- /dev/null
+++ b/src/cluster/entrypoint.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+
+cmd="${1}"
+case "${cmd}" in
+    "pause")
+        exec pause;;
+    "echoserver")
+        exec python3 /usr/local/bin/echoserver;;
+    *) echo >&2 "Invalid option: $@"; exit 1;;
+esac