Adds support for Rancher servers that use self-signed certificates

Dockerfile

@@ -1,13 +0,0 @@
-FROM alpine:3.4
-
-RUN apk add --no-cache ca-certificates
-
-ENV LETSENCRYPT_RELEASE v0.4.0
-
-ADD https://github.com/janeczku/rancher-letsencrypt/releases/download/${LETSENCRYPT_RELEASE}/rancher-letsencrypt-linux-amd64.tar.gz /tmp/rancher-letsencrypt.tar.gz
-
-RUN tar -zxvf /tmp/rancher-letsencrypt.tar.gz -C /usr/bin \
-	&& chmod +x /usr/bin/rancher-letsencrypt
-
-ENTRYPOINT ["/usr/bin/rancher-letsencrypt"]
-EXPOSE 80

Dockerfile.dev

@@ -1,4 +1,4 @@
-FROM alpine:3.4
+FROM alpine:3.5
 
 RUN apk add --no-cache ca-certificates
 

package/Dockerfile

@@ -0,0 +1,19 @@
+FROM alpine:3.5
+
+RUN apk add --no-cache ca-certificates openssl bash
+
+ENV LETSENCRYPT_RELEASE v0.4.0
+ENV SSL_SCRIPT_COMMIT 08278ace626ada71384fc949bd637f4c15b03b53
+
+RUN wget -O /usr/bin/update-rancher-ssl https://raw.githubusercontent.com/rancher/rancher/${SSL_SCRIPT_COMMIT}/server/bin/update-rancher-ssl && \
+    chmod +x /usr/bin/update-rancher-ssl
+
+COPY rancher-entrypoint.sh /usr/bin/
+
+ADD https://github.com/janeczku/rancher-letsencrypt/releases/download/${LETSENCRYPT_RELEASE}/rancher-letsencrypt-linux-amd64.tar.gz /tmp/rancher-letsencrypt.tar.gz
+
+RUN tar -zxvf /tmp/rancher-letsencrypt.tar.gz -C /usr/bin \
+	&& chmod +x /usr/bin/rancher-letsencrypt
+
+EXPOSE 80
+ENTRYPOINT ["/usr/bin/rancher-entrypoint.sh"]

package/rancher-entrypoint.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+# first arg is `-flag` or `--some-flag`
+if [ "${1:0:1}" = '-' ]; then
+	set -- /usr/bin/rancher-letsencrypt "$@"
+fi
+
+# no argument
+if [ -z "$1" ]; then
+	set -- /usr/bin/rancher-letsencrypt
+fi
+
+/usr/bin/update-rancher-ssl
+
+exec "$@"