Drop the Buildah dependency and the user-specific customized image

This works by configuring the toolbox container after it has been
created, instead of before. The toolbox script itself is mentioned as
the entry point of the container, which does 'exec sleep +Inf' once the
initialization is done.

A new command 'init-container' was added to perform the initialization.
It is primarily meant to be used as the entry point for all toolbox
containers, and must be run inside the container that's to be
initialized. It is not expected to be directly invoked by humans, and
cannot be used on the host.

As a result, the default name for the toolbox containers is now
fedora-toolbox-<version-id>, not fedora-toolbox-<user>-<version-id>.
For backwards compatibility, 'toolbox enter' and 'toolbox run' will
continue to work with containers using the old naming scheme.

https://github.com/debarshiray/toolbox/pull/160

Author: debarshiray

README.md

@@ -19,20 +19,20 @@ 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.
+image. On Fedora this is the `fedora-toolbox` image. This image is used to
+create a toolbox container that seamlessly integrates with the rest of the
+operating system.
 
 ## Usage
 
 ### Create your toolbox container:
 ```
 [user@hostname ~]$ toolbox create
+Created container: fedora-toolbox-30
+Enter with: toolbox enter
 [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.
+This will create a container called `fedora-toolbox-<version-id>`.
 
 ### Enter the toolbox:
 ```

completion/bash/toolbox

@@ -13,12 +13,13 @@ __toolbox() {
   local MIN_VERSION=29
   local RAWHIDE_VERSION=31
 
-  local verbose_commands="create enter list run"
+  local verbose_commands="create enter init-container list run"
   local commands="$verbose_commands rm rmi"
 
   declare -A options
   local options=([create]="--candidate-registry --container --image --release" \
                  [enter]="--container --release" \
+                 [init-container]="--home --monitor-host --shell --uid --user" \
 		 [list]="--containers --images" \
 		 [rm]="--all --force" \
 		 [rmi]="--all --force" \

doc/meson.build

@@ -8,6 +8,7 @@ manuals = [
   'toolbox.1',
   'toolbox-create.1',
   'toolbox-enter.1',
+  'toolbox-init-container.1',
   'toolbox-list.1',
   'toolbox-rm.1',
   'toolbox-rmi.1',

doc/toolbox-init-container.1.md

@@ -0,0 +1,48 @@
+% toolbox-init-container(1)
+
+## NAME
+toolbox\-init\-container - Initialize a running container
+
+## SYNOPSIS
+**toolbox init-container** *--home HOME*
+                       *--monitor-host*
+                       *--shell SHELL*
+                       *--uid UID*
+                       *--user USER*
+
+## DESCRIPTION
+
+Initializes a newly created container that's running. It is primarily meant to
+be used as the entry point for all toolbox containers, and must be run inside
+the container that's to be initialized. It is not expected to be directly
+invoked by humans, and cannot be used on the host.
+
+## OPTIONS ##
+
+The following options are understood:
+
+**--home** HOME
+
+Create a user inside the toolbox container whose login directory is HOME.
+
+**--monitor-host**
+
+Ensure that certain configuration files inside the toolbox container are kept
+synchronized with their counterparts on the host. Currently, these files are
+`/etc/hosts` and `/etc/resolv.conf`.
+
+**--shell** SHELL
+
+Create a user inside the toolbox container whose login shell is SHELL.
+
+**--uid** UID
+
+Create a user inside the toolbox container whose numerical user ID is UID.
+
+**--user** USER
+
+Create a user inside the toolbox container whose login name is LOGIN.
+
+## SEE ALSO
+
+`podman(1)`, `podman-create(1)`, `podman-start(1)`

doc/toolbox.1.md

@@ -57,6 +57,10 @@ Create a new toolbox container.
 
 Enter a toolbox container for interactive use.
 
+**toolbox-init-container(1)**
+
+Initialize a running container.
+
 **toolbox-list(1)**
 
 List existing toolbox containers and images.