From ddb0c180d906c755f7172f13fdce18c931719e2a Mon Sep 17 00:00:00 2001
From: Ricard Illa <rilla@monotremata.xyz>
Date: Fri, 16 Sep 2022 12:12:02 +0200
Subject: [PATCH] rsyncd: secrets file is set up by entrypoint script

---
 rsyncd/Dockerfile    | 8 ++++++--
 rsyncd/Makefile      | 4 ++--
 rsyncd/entrypoint.sh | 8 ++++++++
 3 files changed, 16 insertions(+), 4 deletions(-)
 create mode 100644 rsyncd/entrypoint.sh

diff --git a/rsyncd/Dockerfile b/rsyncd/Dockerfile
index bd9ef73..7c2abac 100644
--- a/rsyncd/Dockerfile
+++ b/rsyncd/Dockerfile
@@ -1,5 +1,9 @@
 FROM alpine:3.16
 
-RUN apk add --no-cache rsync
+COPY entrypoint.sh /entrypoint.sh 
 
-CMD ["/usr/bin/rsync", "--daemon", "--no-detach", "--config", "/etc/rsyncd.conf"]
+RUN chmod +x /entrypoint.sh && \
+    apk add --no-cache rsync
+
+ENTRYPOINT ["/entrypoint.sh"]
+CMD ["/usr/bin/rsync", "--daemon", "--no-detach", "--config", "/etc/rsyncd.conf", "--verbose"]
diff --git a/rsyncd/Makefile b/rsyncd/Makefile
index 3419c97..922119d 100644
--- a/rsyncd/Makefile
+++ b/rsyncd/Makefile
@@ -5,13 +5,13 @@ PLATFORMS=linux/amd64,linux/arm64
 
 .PHONY: build push buildx
 
-build: Dockerfile
+build: Dockerfile entrypoint.sh
 	docker build -t $(IMG) .
 
 push: build
 	docker image push $(IMG)
 
-buildx: Dockerfile
+buildx: Dockerfile entrypoint.sh
 	docker buildx build \
 		--platform $(PLATFORMS) \
 		--tag $(IMG) \
diff --git a/rsyncd/entrypoint.sh b/rsyncd/entrypoint.sh
new file mode 100644
index 0000000..fc15f07
--- /dev/null
+++ b/rsyncd/entrypoint.sh
@@ -0,0 +1,8 @@
+#!/bin/sh
+
+if [ -n "$SECRETS" ]; then
+    echo "$SECRETS" > /etc/rsyncd.secrets
+    chmod 600 /etc/rsyncd.secrets
+fi
+
+exec "$@"