Brush up proxy and rss plugin images, build for multiarch support #1483

.circleci/config.yml

@@ -13,7 +13,34 @@ workflows:
   build-docker-images:
     jobs:
       - build-with-buildx:
+          name: build-transmission-openvpn-images
           context: dockerhub
+          image-name: haugene/transmission-openvpn
+          build-context: "."
+          filters:
+            branches:
+              only:
+                - dev
+                - master
+            tags:
+              only: /^\d+\.\d+.*/
+      - build-with-buildx:
+          name: build-reverse-proxy-images
+          context: dockerhub
+          image-name: haugene/transmission-openvpn-proxy
+          build-context: "proxy"
+          filters:
+            branches:
+              only:
+                - dev
+                - master
+            tags:
+              only: /^\d+\.\d+.*/
+      - build-with-buildx:
+          name: build-rss-plugin-images
+          context: dockerhub
+          image-name: haugene/transmission-rss
+          build-context: "plugins/rss"
           filters:
             branches:
               only:
@@ -25,6 +52,11 @@ workflows:
 # Job definitions, used by the workflows.
 jobs:
   build-with-buildx:
+    parameters:
+      image-name:
+        type: string
+      build-context:
+        type: string
     machine:
       image: ubuntu-2004:202010-01
     steps:
@@ -47,10 +79,10 @@ jobs:
             docker buildx use mybuilder
             docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
             docker buildx ls
-            docker buildx build -t haugene/transmission-openvpn:$IMAGE_TAG --progress plain \
+            docker buildx build -t << parameters.image-name >>:$IMAGE_TAG --progress plain \
               --platform linux/arm,linux/arm64,linux/amd64 \
               --build-arg REVISION=$CIRCLE_SHA1 \
-              --push .
+              --push << parameters.build-context >>
 
   build-and-deploy-gh-pages:
     docker:

plugins/rss/Dockerfile

@@ -1,17 +1,12 @@
-FROM ubuntu:16.04
-MAINTAINER Kristian Haugene
-
-# Update packages and install software
-RUN apt-get update \
-    && apt-get -y upgrade \
-    && apt-get -y install curl gcc make ruby2.3-dev \
-    && gem install transmission-rss \
-    && curl -L https://github.com/jwilder/dockerize/releases/download/v0.5.0/dockerize-linux-amd64-v0.5.0.tar.gz | tar -C /usr/local/bin -xzv
-
-ADD . /etc/transmission-rss
+FROM ruby:2-alpine
 
+# Image caching, put "never changing" layers first
+CMD ["/etc/transmission-rss/start.sh"]
 ENV TRANSMISSION_DOWNLOAD_DIR=/data/completed \
     RSS_URL=**None** \
     RSS_REGEXP=
 
-CMD ["/etc/transmission-rss/start.sh"]
+# Install build-base and transmission-rss gem
+RUN apk add build-base && gem install transmission-rss
+
+ADD . /etc/transmission-rss

plugins/rss/Dockerfile.armhf

@@ -1,17 +0,0 @@
-FROM balenalib/raspberry-pi:stretch
-MAINTAINER Kristian Haugene
-
-# Update packages and install software
-RUN apt-get update \
-    && apt-get -y upgrade \
-    && apt-get -y install curl gcc make ruby2.3-dev libc6-dev \
-    && gem install transmission-rss \
-    && curl -L https://github.com/jwilder/dockerize/releases/download/v0.2.0/dockerize-linux-armhf-v0.2.0.tar.gz | tar -C /usr/local/bin -xzv
-
-ADD . /etc/transmission-rss
-
-ENV TRANSMISSION_DOWNLOAD_DIR=/data/completed \
-    RSS_URL=**None** \
-    RSS_REGEXP=
-
-CMD ["/etc/transmission-rss/start.sh"]

plugins/rss/DockerfileCrossBuild.armhf

@@ -1,23 +0,0 @@
-# This Dockerfile is for building ARM images on x64 machine like Docker Hub
-
-FROM balenalib/raspberry-pi:stretch
-MAINTAINER Kristian Haugene
-
-RUN [ "cross-build-start" ]
-
-# Update packages and install software
-RUN apt-get update \
-    && apt-get -y upgrade \
-    && apt-get -y install curl gcc make ruby2.3-dev libc6-dev \
-    && gem install transmission-rss \
-    && curl -L https://github.com/jwilder/dockerize/releases/download/v0.2.0/dockerize-linux-armhf-v0.2.0.tar.gz | tar -C /usr/local/bin -xzv
-
-ADD . /etc/transmission-rss
-
-ENV TRANSMISSION_DOWNLOAD_DIR=/data/completed \
-    RSS_URL=**None** \
-    RSS_REGEXP=
-
-CMD ["/etc/transmission-rss/start.sh"]
-
-RUN [ "cross-build-end" ]

plugins/rss/environment-variables.tmpl

@@ -1,5 +0,0 @@
-#! /bin/bash
-
-export TRANSMISSION_DOWNLOAD_DIR={{ .Env.TRANSMISSION_DOWNLOAD_DIR }}
-export RSS_URL="{{ .Env.RSS_URL }}"
-export RSS_REGEXP="{{ .Env.RSS_REGEXP }}"

plugins/rss/start.sh

@@ -1,16 +1,31 @@
 #!/bin/sh
 
-# Source our persisted env variables from container startup
-dockerize -template /etc/transmission-rss/environment-variables.tmpl:/etc/transmission-rss/environment-variables.sh
-. /etc/transmission-rss/environment-variables.sh
+#
+# This script tries to figure out how the container is configured.
+# The user has two options:
+# 1. Mount a custom config file to be used
+# 2. Use the built in template that supports one feed with regex filter
+#
 
-if [ -z "${RSS_URL}" ] || [ "${RSS_URL}" = "**None**" ] ; then
- echo "NO RSS URL CONFIGURED, IGNORING"
+if [ -f /etc/transmission-rss.conf ] ; then
+  echo "Found mounted /etc/transmission-rss.conf file"
+elif [ -z "${RSS_URL}" ] || [ "${RSS_URL}" = "**None**" ] ; then
+  echo "Error: No config is mounted and RSS_URL is not defined."
+  echo "Have no config to start from. Exit with error code."
+  exit 1
 else
+  # Configure plugin based on template. Use sed to insert 
+    sed "s^url: placeholder^url: $RSS_URL^" < /etc/transmission-rss/transmission-rss.tmpl \
+    | sed "s^download_path: placeholder^download_path: $TRANSMISSION_DOWNLOAD_DIR^" \
+    > /etc/transmission-rss.conf
+
   if [ -z "${RSS_REGEXP}" ] ; then
-  	sed -i 's/regexp:*//g' /etc/transmission-rss/transmission-rss.tmpl
+    sed -i '/regexp/d' /etc/transmission-rss.conf
+  else
+    sed -i "s#regexp: placeholder#regexp: $RSS_REGEXP#" /etc/transmission-rss.conf
   fi
-  dockerize -template /etc/transmission-rss/transmission-rss.tmpl:/etc/transmission-rss.conf
-  echo "STARTING RSS PLUGIN"
-  transmission-rss
 fi
+
+echo "Starting RSS plugin"
+cat /etc/transmission-rss.conf
+transmission-rss

plugins/rss/transmission-rss.tmpl

@@ -1,7 +1,7 @@
 feeds:
-  - url: {{ .Env.RSS_URL }}
-    download_path: {{ .Env.TRANSMISSION_DOWNLOAD_DIR }}
-    regexp: {{ .Env.RSS_REGEXP }}
+  - url: placeholder
+    download_path: placeholder
+    regexp: placeholder
     
 server:
   host: transmission

proxy/Dockerfile

@@ -1,3 +1,3 @@
 FROM nginx
-
-COPY nginx.conf /etc/nginx/nginx.conf
+EXPOSE 8080
+COPY nginx.conf /etc/nginx/nginx.conf

proxy/Dockerfile.armhf

@@ -1,16 +0,0 @@
-FROM balenalib/raspberry-pi:stretch
-
-RUN apt-get update \
-      && apt-get install -y \
-        ca-certificates \
-        nginx \
-      && rm -rf /var/lib/apt/lists/*
-
-RUN ln -sf /dev/stdout /var/log/nginx/access.log \
-      && ln -sf /dev/stderr /var/log/nginx/error.log
-
-EXPOSE 8080
-
-COPY nginx.conf /etc/nginx/nginx.conf
-
-CMD ["nginx", "-g", "daemon off;"]

proxy/DockerfileCrossBuild.armhf

@@ -1,22 +0,0 @@
-# This Dockerfile is for building ARM images on x64 machine like Docker Hub
-
-FROM balenalib/raspberry-pi:stretch
-
-RUN [ "cross-build-start" ]
-
-RUN apt-get update \
-      && apt-get install -y \
-        ca-certificates \
-        nginx \
-      && rm -rf /var/lib/apt/lists/*
-
-RUN ln -sf /dev/stdout /var/log/nginx/access.log \
-      && ln -sf /dev/stderr /var/log/nginx/error.log
-
-EXPOSE 8080
-
-COPY nginx.conf /etc/nginx/nginx.conf
-
-CMD ["nginx", "-g", "daemon off;"]
-
-RUN [ "cross-build-end" ]