Add package data image.

.dockerignore

@@ -0,0 +1,2 @@
+repo/
+packages/

.gitignore

@@ -1 +1,2 @@
 .*.swp
+packages/

Dockerfile

@@ -1,4 +1,6 @@
-
+#
+# Run lighttpd to serve apk packages
+#
 FROM    alpine:3.2
 MAINTAINER  Daniel Nephin <dnephin@gmail.com>
 

Makefile

@@ -5,3 +5,9 @@ BUILD_ID ?= ${USER}
 .PHONY: build
 build:
 	docker build -t alpine-package-mirror:${BUILD_ID} .
+	@echo Image tag: alpine-package-mirror:${BUILD_ID}
+
+.PHONY: build_repo
+build_repo:
+	docker build -t alpine-package-data:${BUILD_ID} repo/
+	@echo Image tag: alpine-package-data:${BUILD_ID}

README.rst

@@ -17,5 +17,17 @@ To build the image:
     make build
 
 
-To run a private package registry add your packages to
-``/var/www/localhost/htdocs/alpine/``.
+To run the mirror, provide the package directory tree as a volume from the host, or
+another container. In this example the host directory `./repo` contains the
+packages:
+
+    docker run -ti \
+        -v $PWD/repo:/var/www/localhost/htdocs/alpine/ \
+        alpine-package-mirror:$USER
+
+
+To run the mirror with a companion container which takes care of pulling updates
+with rsync, you can use the provided ``docker-compose.yml``:
+
+    BUILD_ID=latest make build build_repo
+    docker-compose up -d

docker-compose.yml

@@ -0,0 +1,7 @@
+
+mirror:
+    image: alpine-package-mirror:latest
+    volumes_from: ['data']
+
+data:
+    image: alpine-package-data:latest

repo/Dockerfile

@@ -0,0 +1,15 @@
+#
+# Run rsync to periodically update package data, and share it as a volume
+#
+FROM    alpine:3.2
+MAINTAINER  Daniel Nephin <dnephin@gmail.com>
+
+RUN     apk update && apk add rsync
+RUN     mkdir -p /var/www/localhost/htdocs/alpine
+
+ADD     rsync.sh /etc/periodic/hourly/package-rsync
+RUN     echo "echo doing stuff" > /etc/periodic/15min/doit
+RUN     chmod +x /etc/periodic/15min/doit
+
+VOLUME  /var/www/localhost/htdocs/alpine
+CMD     ["crond", "-f", "-d", "6"]

repo/rsync.sh

@@ -0,0 +1,22 @@
+#!/bin/sh
+
+set -eu
+
+# make sure we never run 2 rsync at the same time
+lockfile="/tmp/alpine-mirror.lock"
+if [ -z "$flock" ] ; then
+  exec env flock=1 flock -n $lockfile $0 "$@"
+fi
+
+src=rsync://rsync.alpinelinux.org/alpine/ 
+dest=/var/www/localhost/htdocs/alpine/
+
+/usr/bin/rsync -prua \
+        --exclude "v2.[1-9]" \
+        --exclude "v3.0" \
+        --exclude "v3.1" \
+        --delete \
+        --timeout=120 \
+        --delay-updates \
+        --delete-after \
+        "$src" "$dest"