Fix a number of "too-specific" versions

busybox/README.md

@@ -39,7 +39,7 @@ BusyBox system.
 
 ## Create a `Dockerfile` for a binary
 
-    FROM busybox:buildroot-2014.02
+    FROM busybox
     COPY ./my-static-binary /my-static-binary
     CMD ["/my-static-binary"]
 

busybox/content.md

@@ -26,7 +26,7 @@ BusyBox system.
 
 ## Create a `Dockerfile` for a binary
 
-    FROM busybox:buildroot-2014.02
+    FROM busybox
     COPY ./my-static-binary /my-static-binary
     CMD ["/my-static-binary"]
 

golang/README.md

@@ -38,13 +38,13 @@ The most straightforward way to use this image is to use a Go container as both
 the build and runtime environment. In your `Dockerfile`, writing something along
 the lines of the following will compile and run your project:
 
-    FROM golang:1.3.1-onbuild
+    FROM golang:1.3-onbuild
 
 This image includes multiple `ONBUILD` triggers which should cover most
 applications. The build will `COPY . /usr/src/app`, `RUN go get -d -v`, and `RUN
 go install -v`.
 
-This image also includes the `CMD ["app"]` instruction which is the default command 
+This image also includes the `CMD ["app"]` instruction which is the default command
 when running the image without arguments.
 
 You can then build and run the Docker image:
@@ -58,7 +58,7 @@ There may be occasions where it is not appropriate to run your app inside a
 container. To compile, but not run your app inside the Docker instance, you can
 write something like:
 
-    docker run --rm -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp golang:1.3.1 go build -v
+    docker run --rm -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp golang:1.3 go build -v
 
 This will add your current directory as a volume to the container, set the
 working directory to the volume, and run the command `go build` which will tell
@@ -66,7 +66,7 @@ go to compile the project in the working directory and output the executable to
 `myapp`. Alternatively, if you have a `Makefile`, you can run the `make` command
 inside your container.
 
-    docker run --rm -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp golang:1.3.1 make
+    docker run --rm -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp golang:1.3 make
 
 ## Cross-compile your app inside the Docker container
 
@@ -74,11 +74,11 @@ If you need to compile your application for a platform other than `linux/amd64`
 (such as `windows/386`), this can be easily accomplished with the provided
 `cross` tags:
 
-    docker run --rm -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp -e GOOS=windows -e GOARCH=386 golang:1.3.1-cross go build -v
+    docker run --rm -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp -e GOOS=windows -e GOARCH=386 golang:1.3-cross go build -v
 
 Alternatively, you can build for multiple platforms at once:
 
-    docker run --rm -it -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp golang:1.3.1-cross bash
+    docker run --rm -it -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp golang:1.3-cross bash
     $ for GOOS in darwin linux; do
     >   for GOARCH in 386 amd64; do
     >     go build -v -o myapp-$GOOS-$GOARCH

golang/content.md

@@ -18,13 +18,13 @@ The most straightforward way to use this image is to use a Go container as both
 the build and runtime environment. In your `Dockerfile`, writing something along
 the lines of the following will compile and run your project:
 
-    FROM golang:1.3.1-onbuild
+    FROM golang:1.3-onbuild
 
 This image includes multiple `ONBUILD` triggers which should cover most
 applications. The build will `COPY . /usr/src/app`, `RUN go get -d -v`, and `RUN
 go install -v`.
 
-This image also includes the `CMD ["app"]` instruction which is the default command 
+This image also includes the `CMD ["app"]` instruction which is the default command
 when running the image without arguments.
 
 You can then build and run the Docker image:
@@ -38,7 +38,7 @@ There may be occasions where it is not appropriate to run your app inside a
 container. To compile, but not run your app inside the Docker instance, you can
 write something like:
 
-    docker run --rm -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp golang:1.3.1 go build -v
+    docker run --rm -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp golang:1.3 go build -v
 
 This will add your current directory as a volume to the container, set the
 working directory to the volume, and run the command `go build` which will tell
@@ -46,7 +46,7 @@ go to compile the project in the working directory and output the executable to
 `myapp`. Alternatively, if you have a `Makefile`, you can run the `make` command
 inside your container.
 
-    docker run --rm -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp golang:1.3.1 make
+    docker run --rm -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp golang:1.3 make
 
 ## Cross-compile your app inside the Docker container
 
@@ -54,11 +54,11 @@ If you need to compile your application for a platform other than `linux/amd64`
 (such as `windows/386`), this can be easily accomplished with the provided
 `cross` tags:
 
-    docker run --rm -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp -e GOOS=windows -e GOARCH=386 golang:1.3.1-cross go build -v
+    docker run --rm -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp -e GOOS=windows -e GOARCH=386 golang:1.3-cross go build -v
 
 Alternatively, you can build for multiple platforms at once:
 
-    docker run --rm -it -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp golang:1.3.1-cross bash
+    docker run --rm -it -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp golang:1.3-cross bash
     $ for GOOS in darwin linux; do
     >   for GOARCH in 386 amd64; do
     >     go build -v -o myapp-$GOOS-$GOARCH

jruby/README.md

@@ -34,7 +34,7 @@ garbage collection, and even import and use java libraries.
 
 ## Create a `Dockerfile` in your Ruby app project
 
-    FROM jruby:.1.7.15-onbuild
+    FROM jruby:1.7-onbuild
     CMD ["./your-daemon-or-script.rb"]
 
 Put this file in the root of your app, next to the `Gemfile`.
@@ -54,7 +54,7 @@ The `onbuid` tag expects a `Gemfile.lock` in your app directory. This `docker
 run` will help you generate one. Run it in the root of your app, next to the
 `Gemfile`:
 
-    docker run --rm -v "$(pwd)":/usr/src/app -w /usr/src/app jruby:1.7.15 bundle install --system
+    docker run --rm -v "$(pwd)":/usr/src/app -w /usr/src/app jruby:1.7 bundle install --system
 
 ## Run a single Ruby script
 
@@ -62,7 +62,7 @@ For many simple, single file projects, you may find it inconvenient to write a
 complete `Dockerfile`. In such cases, you can run a Ruby script by using the
 Ruby Docker image directly:
 
-    docker run -it --rm --name my-running-script -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp jruby:1.7.15 jruby your-daemon-or-script.rb
+    docker run -it --rm --name my-running-script -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp jruby:1.7 jruby your-daemon-or-script.rb
 
 # License
 

jruby/content.md

@@ -22,7 +22,7 @@ garbage collection, and even import and use java libraries.
 
 ## Create a `Dockerfile` in your Ruby app project
 
-    FROM jruby:.1.7.15-onbuild
+    FROM jruby:1.7-onbuild
     CMD ["./your-daemon-or-script.rb"]
 
 Put this file in the root of your app, next to the `Gemfile`.
@@ -42,7 +42,7 @@ The `onbuid` tag expects a `Gemfile.lock` in your app directory. This `docker
 run` will help you generate one. Run it in the root of your app, next to the
 `Gemfile`:
 
-    docker run --rm -v "$(pwd)":/usr/src/app -w /usr/src/app jruby:1.7.15 bundle install --system
+    docker run --rm -v "$(pwd)":/usr/src/app -w /usr/src/app jruby:1.7 bundle install --system
 
 ## Run a single Ruby script
 
@@ -50,4 +50,4 @@ For many simple, single file projects, you may find it inconvenient to write a
 complete `Dockerfile`. In such cases, you can run a Ruby script by using the
 Ruby Docker image directly:
 
-    docker run -it --rm --name my-running-script -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp jruby:1.7.15 jruby your-daemon-or-script.rb
+    docker run -it --rm --name my-running-script -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp jruby:1.7 jruby your-daemon-or-script.rb

rails/README.md

@@ -53,7 +53,7 @@ The `onbuid` tag expects a `Gemfile.lock` in your app directory. This `docker
 run` will help you generate one. Run it in the root of your app, next to the
 `Gemfile`:
 
-    docker run --rm -v "$(pwd)":/usr/src/app -w /usr/src/app ruby:2.1.2 bundle install --system
+    docker run --rm -v "$(pwd)":/usr/src/app -w /usr/src/app ruby:2.1 bundle install
 
 # License
 

rails/content.md

@@ -42,4 +42,4 @@ The `onbuid` tag expects a `Gemfile.lock` in your app directory. This `docker
 run` will help you generate one. Run it in the root of your app, next to the
 `Gemfile`:
 
-    docker run --rm -v "$(pwd)":/usr/src/app -w /usr/src/app ruby:2.1.2 bundle install --system
+    docker run --rm -v "$(pwd)":/usr/src/app -w /usr/src/app ruby:2.1 bundle install

ruby/README.md

@@ -29,7 +29,7 @@ type system and automatic memory management.
 
 ## Create a `Dockerfile` in your Ruby app project
 
-    FROM ruby:2.1.2-onbuild
+    FROM ruby:2.1-onbuild
     CMD ["./your-daemon-or-script.rb"]
 
 Put this file in the root of your app, next to the `Gemfile`.
@@ -49,7 +49,7 @@ The `onbuid` tag expects a `Gemfile.lock` in your app directory. This `docker
 run` will help you generate one. Run it in the root of your app, next to the
 `Gemfile`:
 
-    docker run --rm -v "$(pwd)":/usr/src/app -w /usr/src/app ruby:2.1.2 bundle install --system
+    docker run --rm -v "$(pwd)":/usr/src/app -w /usr/src/app ruby:2.1 bundle install --system
 
 ## Run a single Ruby script
 
@@ -57,7 +57,7 @@ For many simple, single file projects, you may find it inconvenient to write a
 complete `Dockerfile`. In such cases, you can run a Ruby script by using the
 Ruby Docker image directly:
 
-    docker run -it --rm --name my-running-script -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp ruby:2.1.2 ruby your-daemon-or-script.rb
+    docker run -it --rm --name my-running-script -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp ruby:2.1 ruby your-daemon-or-script.rb
 
 # License
 

ruby/content.md

@@ -14,7 +14,7 @@ type system and automatic memory management.
 
 ## Create a `Dockerfile` in your Ruby app project
 
-    FROM ruby:2.1.2-onbuild
+    FROM ruby:2.1-onbuild
     CMD ["./your-daemon-or-script.rb"]
 
 Put this file in the root of your app, next to the `Gemfile`.
@@ -34,7 +34,7 @@ The `onbuid` tag expects a `Gemfile.lock` in your app directory. This `docker
 run` will help you generate one. Run it in the root of your app, next to the
 `Gemfile`:
 
-    docker run --rm -v "$(pwd)":/usr/src/app -w /usr/src/app ruby:2.1.2 bundle install --system
+    docker run --rm -v "$(pwd)":/usr/src/app -w /usr/src/app ruby:2.1 bundle install --system
 
 ## Run a single Ruby script
 
@@ -42,4 +42,4 @@ For many simple, single file projects, you may find it inconvenient to write a
 complete `Dockerfile`. In such cases, you can run a Ruby script by using the
 Ruby Docker image directly:
 
-    docker run -it --rm --name my-running-script -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp ruby:2.1.2 ruby your-daemon-or-script.rb
+    docker run -it --rm --name my-running-script -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp ruby:2.1 ruby your-daemon-or-script.rb