Added support for baseimages based on Alpine 3.12.

.travis.yml

@@ -13,6 +13,8 @@ env:
   global:
   - DOCKER_REPO=jlesage/baseimage
   matrix:
+  - DOCKER_TAG=alpine-3.12
+  - DOCKER_TAG=alpine-3.12-glibc
   - DOCKER_TAG=alpine-3.11
   - DOCKER_TAG=alpine-3.11-glibc
   - DOCKER_TAG=alpine-3.10

README.md

@@ -46,13 +46,15 @@ Different docker images are available:
 | [Alpine 3.9]       | alpine-3.9       | [![](https://images.microbadger.com/badges/image/jlesage/baseimage:alpine-3.9.svg)](http://microbadger.com/#/images/jlesage/baseimage:alpine-3.9 "Get your own image badge on microbadger.com") |
 | [Alpine 3.10]      | alpine-3.10      | [![](https://images.microbadger.com/badges/image/jlesage/baseimage:alpine-3.10.svg)](http://microbadger.com/#/images/jlesage/baseimage:alpine-3.10 "Get your own image badge on microbadger.com") |
 | [Alpine 3.11]      | alpine-3.11      | [![](https://images.microbadger.com/badges/image/jlesage/baseimage:alpine-3.11.svg)](http://microbadger.com/#/images/jlesage/baseimage:alpine-3.11 "Get your own image badge on microbadger.com") |
+| [Alpine 3.12]      | alpine-3.12      | [![](https://images.microbadger.com/badges/image/jlesage/baseimage:alpine-3.12.svg)](http://microbadger.com/#/images/jlesage/baseimage:alpine-3.12 "Get your own image badge on microbadger.com") |
 | [Alpine 3.5]       | alpine-3.5-glibc | [![](https://images.microbadger.com/badges/image/jlesage/baseimage:alpine-3.5-glibc.svg)](http://microbadger.com/#/images/jlesage/baseimage:alpine-3.5-glibc "Get your own image badge on microbadger.com") |
 | [Alpine 3.6]       | alpine-3.6-glibc | [![](https://images.microbadger.com/badges/image/jlesage/baseimage:alpine-3.6-glibc.svg)](http://microbadger.com/#/images/jlesage/baseimage:alpine-3.6-glibc "Get your own image badge on microbadger.com") |
 | [Alpine 3.7]       | alpine-3.7-glibc | [![](https://images.microbadger.com/badges/image/jlesage/baseimage:alpine-3.7-glibc.svg)](http://microbadger.com/#/images/jlesage/baseimage:alpine-3.7-glibc "Get your own image badge on microbadger.com") |
 | [Alpine 3.8]       | alpine-3.8-glibc | [![](https://images.microbadger.com/badges/image/jlesage/baseimage:alpine-3.8-glibc.svg)](http://microbadger.com/#/images/jlesage/baseimage:alpine-3.8-glibc "Get your own image badge on microbadger.com") |
 | [Alpine 3.9]       | alpine-3.9-glibc | [![](https://images.microbadger.com/badges/image/jlesage/baseimage:alpine-3.9-glibc.svg)](http://microbadger.com/#/images/jlesage/baseimage:alpine-3.9-glibc "Get your own image badge on microbadger.com") |
 | [Alpine 3.10]       | alpine-3.10-glibc | [![](https://images.microbadger.com/badges/image/jlesage/baseimage:alpine-3.10-glibc.svg)](http://microbadger.com/#/images/jlesage/baseimage:alpine-3.10-glibc "Get your own image badge on microbadger.com") |
 | [Alpine 3.11]       | alpine-3.11-glibc | [![](https://images.microbadger.com/badges/image/jlesage/baseimage:alpine-3.11-glibc.svg)](http://microbadger.com/#/images/jlesage/baseimage:alpine-3.11-glibc "Get your own image badge on microbadger.com") |
+| [Alpine 3.12]       | alpine-3.12-glibc | [![](https://images.microbadger.com/badges/image/jlesage/baseimage:alpine-3.12-glibc.svg)](http://microbadger.com/#/images/jlesage/baseimage:alpine-3.12-glibc "Get your own image badge on microbadger.com") |
 | [Debian 8]         | debian-8         | [![](https://images.microbadger.com/badges/image/jlesage/baseimage:debian-8.svg)](http://microbadger.com/#/images/jlesage/baseimage:debian-8/ "Get your own image badge on microbadger.com") |
 | [Debian 9]         | debian-9         | [![](https://images.microbadger.com/badges/image/jlesage/baseimage:debian-9.svg)](http://microbadger.com/#/images/jlesage/baseimage:debian-9/ "Get your own image badge on microbadger.com") |
 | [Debian 10]        | debian-10        | [![](https://images.microbadger.com/badges/image/jlesage/baseimage:debian-10.svg)](http://microbadger.com/#/images/jlesage/baseimage:debian-10/ "Get your own image badge on microbadger.com") |
@@ -66,11 +68,12 @@ Different docker images are available:
 [Alpine 3.9]: https://alpinelinux.org
 [Alpine 3.10]: https://alpinelinux.org
 [Alpine 3.11]: https://alpinelinux.org
+[Alpine 3.12]: https://alpinelinux.org
 [Debian 8]: https://www.debian.org/releases/jessie/
 [Debian 9]: https://www.debian.org/releases/stretch/
 [Debian 10]: https://www.debian.org/releases/buster/
 [Ubuntu 16.04 LTS]: http://releases.ubuntu.com/16.04/
-[Ubuntu 18.04 LTS]: http://releases.ubuntu.com/18:04/
+[Ubuntu 18.04 LTS]: http://releases.ubuntu.com/18.04/
 
 Due to its size, the `Alpine` image is recommended.  However, it may be harder
 to integrate your application (especially third party ones without source code),

versions/alpine-3.12

@@ -0,0 +1,3 @@
+DOCKERFILE=Dockerfile.alpine
+BASEIMAGE=alpine:3.12
+S6_OVERLAY_ARCH=amd64

versions/alpine-3.12-glibc

@@ -0,0 +1,5 @@
+DOCKERFILE=Dockerfile.alpine
+BASEIMAGE=alpine:3.12
+S6_OVERLAY_ARCH=amd64
+GLIBC_INSTALL=1
+GLIBC_ARCH=x86_64