Use the corresponding s6 binary for the built arch - fixes #298

docker/Dockerfile

@@ -5,6 +5,8 @@
 
 FROM --platform=${TARGETPLATFORM:-linux/amd64} jc21/alpine-nginx-full:node
 
+ARG TARGETPLATFORM
+ARG BUILDPLATFORM
 ARG BUILD_VERSION
 ARG BUILD_COMMIT
 ARG BUILD_DATE
@@ -22,8 +24,8 @@ RUN echo "fs.file-max = 65535" > /etc/sysctl.conf \
 ENV NPM_BUILD_VERSION="${BUILD_VERSION}" NPM_BUILD_COMMIT="${BUILD_COMMIT}" NPM_BUILD_DATE="${BUILD_DATE}"
 
 # s6 overlay
-RUN curl -L -o /tmp/s6-overlay-amd64.tar.gz "https://github.com/just-containers/s6-overlay/releases/download/v1.22.1.0/s6-overlay-amd64.tar.gz" \
-	&& tar -xzf /tmp/s6-overlay-amd64.tar.gz -C /
+COPY scripts/install-s6 /tmp/install-s6
+RUN /tmp/install-s6 "${TARGETPLATFORM}" && rm -f /tmp/install-s6
 
 EXPOSE 80
 EXPOSE 81
@@ -43,4 +45,4 @@ RUN rm -rf /etc/services.d/frontend RUN rm -f /etc/nginx/conf.d/dev.conf
 VOLUME [ "/data", "/etc/letsencrypt" ]
 CMD [ "/init" ]
 
-HEALTHCHECK --interval=5s --timeout=3s CMD /bin/check-health
+HEALTHCHECK --interval=5s --timeout=3s CMD /bin/check-health

scripts/install-s6

@@ -0,0 +1,34 @@
+#!/bin/bash -e
+
+# Note: This script is designed to be run inside a Docker Build for a container
+
+CYAN='\E[1;36m'
+YELLOW='\E[1;33m'
+BLUE='\E[1;34m'
+GREEN='\E[1;32m'
+RESET='\E[0m'
+
+S6_OVERLAY_VERSION=1.22.1.0
+TARGETPLATFORM=$1
+
+# Determine the correct binary file for the architecture given
+case $TARGETPLATFORM in
+	linux/arm64)
+		S6_ARCH=aarch64
+		;;
+
+	linux/arm/v7)
+		S6_ARCH=armhf
+		;;
+
+	*)
+		S6_ARCH=amd64
+		;;
+esac
+
+echo -e "${BLUE}❯ ${CYAN}Installing S6-overlay v${S6_OVERLAY_VERSION} for ${YELLOW}${TARGETPLATFORM} (${S6_ARCH})${RESET}"
+
+curl -L -o "/tmp/s6-overlay-${S6_ARCH}.tar.gz" "https://github.com/just-containers/s6-overlay/releases/download/v${S6_OVERLAY_VERSION}/s6-overlay-${S6_ARCH}.tar.gz" \
+	&& tar -xzf "/tmp/s6-overlay-${S6_ARCH}.tar.gz" -C /
+
+echo -e "${BLUE}❯ ${GREEN}S6-overlay install Complete${RESET}"