From 46f821f88c68521d503be01c5f64b2263093c6f7 Mon Sep 17 00:00:00 2001
From: Nicolas Viennot <nicolas@viennot.biz>
Date: Sat, 10 Aug 2019 21:37:51 -0400
Subject: [PATCH] Docker image use environement variables to get their settings

---
 Dockerfile           | 8 ++++++--
 Dockerfile.dev       | 9 ++++++---
 docker-entrypoint.sh | 8 ++++++++
 3 files changed, 20 insertions(+), 5 deletions(-)
 create mode 100755 docker-entrypoint.sh

diff --git a/Dockerfile b/Dockerfile
index a2212455..400a98d2 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -27,5 +27,9 @@ RUN set -ex; \
 	rm -rf /src; \
 	apk del .build-deps
 
-EXPOSE 22
-ENTRYPOINT ["tmate-ssh-server"]
+# TODO not run as root. Instead, use capabilities.
+
+COPY docker-entrypoint.sh /usr/local/bin
+
+EXPOSE 2200
+ENTRYPOINT ["docker-entrypoint.sh"]
diff --git a/Dockerfile.dev b/Dockerfile.dev
index 8d9bbbd4..947bd717 100644
--- a/Dockerfile.dev
+++ b/Dockerfile.dev
@@ -23,7 +23,10 @@ COPY . .
 RUN set -ex; \
 	./autogen.sh; \
 	./configure --prefix=/usr CFLAGS="-D_GNU_SOURCE"; \
-	make -j "$(nproc)"
+	make -j "$(nproc)"; \
+  ln -s /src/tmate-ssh-server/tmate-ssh-server /usr/bin
 
-EXPOSE 22
-ENTRYPOINT ["/src/tmate-ssh-server/tmate-ssh-server"]
+COPY docker-entrypoint.sh /usr/local/bin
+
+EXPOSE 2200
+ENTRYPOINT ["docker-entrypoint.sh"]
diff --git a/docker-entrypoint.sh b/docker-entrypoint.sh
new file mode 100755
index 00000000..c91b1c13
--- /dev/null
+++ b/docker-entrypoint.sh
@@ -0,0 +1,8 @@
+#!/bin/sh
+set -e
+
+if [ "${USE_PROXY}" == "1" ]; then
+  exec tmate-ssh-server -p 2200 -k ${SSH_KEYS_PATH} -h ${SSH_HOSTNAME} -x localhost
+else
+  exec tmate-ssh-server -p 2200 -k ${SSH_KEYS_PATH} -h ${SSH_HOSTNAME}
+fi