Ensure env vars are set for acme.sh images

Author: jc21

docker/Dockerfile.acmesh-golang

@@ -13,7 +13,14 @@ RUN apt-get update \
 # copy go from golang
 COPY --from=go /usr/local/go /usr/local/go
 
-ENV GOPATH=/opt/go PATH="/usr/local/go/bin:$PATH:/opt/go/bin"
+ENV GOPATH=/opt/go \
+	PATH="/usr/local/go/bin:$PATH:/opt/go/bin" \
+	ACMESH_CONFIG_HOME=/data/.acme.sh/config \
+	ACMESH_HOME=/data/.acme.sh \
+	CERT_HOME=/data/.acme.sh/certs \
+	LE_CONFIG_HOME=/data/.acme.sh/config \
+	LE_WORKING_DIR=/data/.acme.sh
+
 RUN mkdir -p "$GOPATH/src" "$GOPATH/bin" \
 	&& chmod -R 777 "$GOPATH" \
 	&& echo "====> ${TARGETPLATFORM}: $(go version)"

files/acme.sh-wrapper

@@ -1,5 +1,27 @@
 #!/bin/bash -e
 
+# Ensure env vars are set
+if [ "$ACMESH_HOME" = "" ]; then
+	echo "Error: ACMESH_HOME is not set!"
+	exit 1
+fi
+if [ "$ACMESH_CONFIG_HOME" = "" ]; then
+	echo "Error: ACMESH_CONFIG_HOME is not set!"
+	exit 1
+fi
+if [ "$CERT_HOME" = "" ]; then
+	echo "Error: CERT_HOME is not set!"
+	exit 1
+fi
+if [ "$LE_CONFIG_HOME" = "" ]; then
+	echo "Error: LE_CONFIG_HOME is not set!"
+	exit 1
+fi
+if [ "$LE_WORKING_DIR" = "" ]; then
+	echo "Error: LE_WORKING_DIR is not set!"
+	exit 1
+fi
+
 # Ensure acme.sh dirs exist
 mkdir -p "$ACMESH_HOME" "$ACMESH_CONFIG_HOME" "$CERT_HOME" "$LE_CONFIG_HOME" "$LE_WORKING_DIR"