Improve archival dockerfile (#5358)

.dockerignore

@@ -1,2 +1,7 @@
 .git
+.github
+.jekyll-metadata
+.gitignore
+Dockerfile
+docker-compose.yml
 _site

Dockerfile

@@ -1,3 +1,11 @@
-FROM starefossen/github-pages:onbuild
+# Set to the version for this archive
+ARG VER=v1.11
 
-CMD jekyll serve -d /_site --watch -H 0.0.0.0 -P 4000
+# This image comes from the Dockerfile.builder.onbuild file in the publish-tools branch
+# https://github.com/docker/docker.github.io/blob/publish-tools/Dockerfile.builder.onbuild
+FROM docs/docker.github.io:docs-builder-onbuild AS builder
+
+# Reset the docs/docker.github.io:nginx-onbuild image, which is based on nginx:alpine
+# This image comes from the Dockerfule.nginx.onbuild in the publish-tools branch
+# https://github.com/docker/docker.github.io/blob/publish-tools/Dockerfile.nginx.onbuild
+FROM docs/docker.github.io:nginx-onbuild

Gemfile

@@ -0,0 +1,6 @@
+source "https://rubygems.org"
+
+# Update me once in a while: https://github.com/github/pages-gem/releases
+# Please ensure, before upgrading, that this version exists as a tag in starefossen/github-pages here:
+# https://hub.docker.com/r/starefossen/github-pages/tags/
+gem "github-pages", "147"

_config.yml

@@ -1 +1 @@
-exclude: [src]
+exclude: ["src","hooks"]

hooks/post_push

@@ -1,14 +0,0 @@
-#!/bin/bash
-
-set -e
-
-# If this is an archive branch (like v1.4 or v1.11),
-# build and push the docs-base branch at the end of
-# a successful build of the branch
-
-if [[ $SOURCE_BRANCH =~ (^v1\.[0-9]+$|^v1[7-9]\.[0-9]+$) ]]; then
-  git fetch origin docs-base:docs-base --depth 1 || ( echo "Couldn't fetch docs-base." && exit 1 )
-  git checkout docs-base || ( echo "Couldn't check out docs-base." && exit 1 )
-  docker build -t docs/docker.github.io:docs-base . || ( echo "Couldn't build docs-base Dockerfile." && exit 1 )
-  docker push docs/docker.github.io:docs-base || ( echo "Coudn't push new docs-base image." && exit 1 )
-fi