Add label for tagging, not tied to the fedora-toolbox name

Currently the toolbox script identifies toolbox images and containers
by checking whether the com.redhat.component label matches
"fedora-toolbox". However, as per the Fedora Container Guidelines [1],
the com.redhat.com label should match the Red Hat Bugzilla component
name where bugs against the image should be reported. This means that
images derived from the base fedora-toolbox image would likely end up
overwriting it.

One option would've been to mandate that all toolbox images have the
"fedora-toolbox-" prefix in their names. However, it's better to avoid
putting limitations on how images can be named. The "fedora" name
wouldn't anyway work for images based on other distributions, and not
all images are going to use the Red Hat bugzilla for tracking bugs.

It's better to use a tag that's uniquely associated with the toolbox
project, and isn't tied to a particular distribution or bug tracker.

[1] https://fedoraproject.org/wiki/Container:Guidelines

Dockerfile

@@ -0,0 +1,27 @@
+FROM registry.fedoraproject.org/fedora:28
+
+ENV NAME=fedora-toolbox VERSION=28
+LABEL com.github.debarshiray.toolbox="true" \
+      com.redhat.component="$NAME" \
+      name="$FGC/$NAME" \
+      version="$VERSION" \
+      usage="This image is meant to be used with the toolbox command" \
+      summary="Base image for creating Fedora toolbox containers" \
+      maintainer="Debarshi Ray <rishi@fedoraproject.org>"
+
+COPY README.md /
+
+RUN sed -i '/tsflags=nodocs/d' /etc/dnf/dnf.conf
+RUN dnf -y swap coreutils-single coreutils-full
+
+COPY missing-docs /
+RUN dnf -y reinstall $(<missing-docs)
+RUN rm /missing-docs
+
+COPY extra-packages /
+RUN dnf -y install $(<extra-packages)
+RUN rm /extra-packages
+
+RUN dnf clean all
+
+CMD /bin/sh

README.md

@@ -1,3 +1,41 @@
-# fedora-toolbox
+# Toolbox — Unprivileged development environment
 
-The fedora-toolbox package
+[Toolbox](https://github.com/debarshiray/toolbox) is a tool that offers a
+familiar RPM based environment for developing and debugging software that runs
+fully unprivileged using [Podman](https://podman.io/).
+
+The toolbox container is a fully *mutable* container; when you see
+`yum install ansible` for example, that's something you can do inside your
+toolbox container, without affecting the base operating system.
+
+This is particularly useful on
+[OSTree](https://ostree.readthedocs.io/en/latest/) based Fedora systems like
+[Silverblue](https://silverblue.fedoraproject.org/).  The intention of these
+systems is to discourage installation of software on the host, and instead
+install software as (or in) containers.
+
+However, this tool doesn't *require* using an OSTree based system — it
+works equally well if you're running e.g. existing Fedora Workstation or
+Server, and that's a useful way to incrementally adopt containerization.
+
+The toolbox environment is based on an [OCI](https://www.opencontainers.org/)
+image. On Fedora this is the `fedora-toolbox` image. This image is then
+customized for the current user to create a toolbox container that seamlessly
+integrates with the rest of the operating system.
+
+## Usage
+
+### Create your toolbox container:
+```
+[user@hostname ~]$ toolbox create
+[user@hostname ~]$
+```
+This will create a container, and an image, called
+`fedora-toolbox-<your-username>:<version-id>` that's specifically customised
+for your host user.
+
+### Enter the toolbox:
+```
+[user@hostname ~]$ toolbox enter
+🔹[user@toolbox ~]$
+```

extra-packages

@@ -0,0 +1,38 @@
+bash-completion
+bzip2
+diffutils
+dnf-plugins-core
+findutils
+fpaste
+git
+gnupg
+gnupg2-smime
+hostname
+iputils
+jwhois
+keyutils
+krb5-libs
+less
+lsof
+man-db
+man-pages
+mlocate
+mtr
+openssh-clients
+PackageKit-command-not-found
+passwd
+pigz
+procps-ng
+rsync
+sudo
+tcpdump
+time
+traceroute
+tree
+unzip
+vte-profile
+wget
+which
+words
+xz
+zip

missing-docs

@@ -0,0 +1,22 @@
+acl
+bash
+chkconfig
+curl
+dbus
+dnf
+gawk
+grep
+gzip
+info
+libcap
+nss
+openssl
+p11-kit
+pam
+pkgconf
+python3
+rpm
+rpm-plugin-systemd-inhibit
+sed
+systemd
+tar