Refactor docker image

.dockerignore

@@ -0,0 +1,8 @@
+.git/
+assets/
+examples/
+
+.dockerignore
+config.yaml
+Dockerfile
+README.md

.github/workflows/builder.yml

@@ -30,22 +30,22 @@ jobs:
       - name: Build amd64
         uses: home-assistant/builder@master
         with:
-          args: --amd64 --target build/hassio --version $TAG-amd64 --no-latest --docker-hub-check
+          args: --amd64 --target . --version $TAG-amd64 --no-latest --docker-hub-check
 
       - name: Build i386
         uses: home-assistant/builder@master
         with:
-          args: --i386 --target build/hassio --version $TAG-i386 --no-latest --docker-hub-check
+          args: --i386 --target . --version $TAG-i386 --no-latest --docker-hub-check
 
       - name: Build aarch64
         uses: home-assistant/builder@master
         with:
-          args: --aarch64 --target build/hassio --version $TAG-aarch64 --no-latest --docker-hub-check
+          args: --aarch64 --target . --version $TAG-aarch64 --no-latest --docker-hub-check
 
       - name: Build armv7
         uses: home-assistant/builder@master
         with:
-          args: --armv7 --target build/hassio --version $TAG-armv7 --no-latest --docker-hub-check
+          args: --armv7 --target . --version $TAG-armv7 --no-latest --docker-hub-check
 
       - name: Docker manifest
         run: |

Dockerfile

@@ -0,0 +1,42 @@
+# https://github.com/hassio-addons/addon-base-python/releases
+ARG BASE_VERSION="9.0.1"
+# https://hub.docker.com/_/golang/tags?page=1&name=-alpine
+ARG GO_VERSION="1.19.2"
+# https://hub.docker.com/r/ngrok/ngrok/tags?page=1&name=-alpine
+ARG NGROK_VERSION="3.1.0"
+
+
+FROM ghcr.io/hassio-addons/base-python:${BASE_VERSION} AS base
+
+
+FROM golang:${GO_VERSION}-alpine AS go
+
+
+FROM ngrok/ngrok:${NGROK_VERSION}-alpine AS ngrok
+
+
+# Build go2rtc binary
+FROM go AS build
+
+WORKDIR /workspace
+
+COPY . .
+
+RUN CGO_ENABLED=0 go build -ldflags "-s -w" -trimpath
+
+
+# Collect all files
+FROM scratch AS rootfs
+
+COPY --from=build /workspace/go2rtc /usr/local/bin/
+COPY --from=ngrok /bin/ngrok /usr/local/bin/
+COPY ./docker/rootfs/ /
+
+
+# Final stage
+FROM base
+
+# Install ffmpeg
+RUN apk add --no-cache ffmpeg
+
+COPY --from=rootfs / /

build/hassio/Dockerfile

@@ -1,41 +0,0 @@
-ARG BUILD_FROM
-
-FROM $BUILD_FROM as build
-
-# 1. Build go2rtc
-RUN apk add --no-cache git go
-
-RUN git clone https://github.com/AlexxIT/go2rtc \
-    && cd go2rtc \
-    && CGO_ENABLED=0 go build -ldflags "-s -w" -trimpath
-
-# 2. Download ngrok
-ARG BUILD_ARCH
-
-# https://github.com/home-assistant/docker-base/blob/master/alpine/Dockerfile
-RUN if [ "${BUILD_ARCH}" = "aarch64" ]; then BUILD_ARCH="arm64"; \
-    elif [ "${BUILD_ARCH}" = "armv7" ]; then BUILD_ARCH="arm"; fi \
-    && cd go2rtc \
-    && curl $(curl -s "https://raw.githubusercontent.com/ngrok/docker-ngrok/main/releases.json" | jq -r ".${BUILD_ARCH}.url") -o ngrok.zip \
-    && unzip ngrok
-
-
-
-# https://devopscube.com/reduce-docker-image-size/
-FROM $BUILD_FROM
-
-# 3. Copy go2rtc and ngrok to release
-COPY --from=build /go2rtc/go2rtc /usr/local/bin
-COPY --from=build /go2rtc/ngrok /usr/local/bin
-
-# 4. Install ffmpeg
-# apk base  OK: 22  MiB in 40  packages
-# ffmpeg    OK: 113 MiB in 110 packages
-# python3   OK: 161 MiB in 114 packages
-RUN apk add --no-cache ffmpeg python3
-
-# 5. Copy run to release
-COPY run.sh /
-RUN chmod a+x /run.sh
-
-CMD [ "/run.sh" ]

build/hassio/run.sh

@@ -1,14 +0,0 @@
-#!/usr/bin/with-contenv bashio
-
-set +e
-
-# set cwd for go2rtc (for config file, Hass integration, etc)
-cd /config
-
-# add the feature to override go2rtc binary from Hass config folder
-export PATH="/config:$PATH"
-
-while true; do
-  go2rtc
-  sleep 5
-done

docker/rootfs/etc/services.d/go2rtc/finish

@@ -0,0 +1,12 @@
+#!/command/with-contenv bashio
+# ==============================================================================
+# Take down the S6 supervision tree when go2rtc fails
+# ==============================================================================
+# shellcheck shell=bash
+
+if [[ "${1}" -ne 0 ]] && [[ "${1}" -ne 256 ]]; then
+    bashio::log.warning "go2rtc crashed, halting add-on"
+    /run/s6/basedir/bin/halt
+fi
+
+bashio::log.info "go2rtc stopped, restarting..."

docker/rootfs/etc/services.d/go2rtc/run

@@ -0,0 +1,23 @@
+#!/command/with-contenv bashio
+# ==============================================================================
+# Runs go2rtc
+# ==============================================================================
+# shellcheck shell=bash
+
+bashio::log.info 'Starting go2rtc...'
+
+declare config_path
+declare binary_path
+
+config_path="/config"
+
+binary_path="/usr/local/bin/go2rtc"
+if [[ -x "${config_path}/go2rtc" ]]; then
+  binary_path="${config_path}/go2rtc"
+  bashio::log.warning "Using go2rtc binary from '${binary_path}'"
+fi
+
+# set cwd for go2rtc (for config file, Hass integration, etc)
+cd "${config_path}" || bashio::exit.nok "Could not change working directory"
+
+exec "${binary_path}"