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https://github.com/waikato-datamining/docker-banner-gen

Command-line tool for generating bash.bashrc templates for docker with a custom banner.
https://github.com/waikato-datamining/docker-banner-gen

bash bashrc docker python3

Last synced: about 2 months ago
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Command-line tool for generating bash.bashrc templates for docker with a custom banner.

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# docker-banner-gen
The **docker-banner-gen** command-line tool allows you to generate
`bash.bashrc` files to be used within Docker containers.
It is based on TensorFlow's `bash.bashrc` and uses pyfiglet to
generate the banner.

## Installation

You can install the tool with `pip` as follows (best to install it in a [virtual
environment](https://virtualenv.pypa.io/en/latest/)):

```commandline
pip install docker-banner-gen
```

Or download and install a Debian package, if you are running Debian/Ubuntu.

## Usage

```
usage: docker-banner-gen [-h] [-t FILE] [-b TEXT] [-s TEXT] [-f FONT]
[-p TEXT] [-w COLS] [-o FILE] [-i] [-L] [-F FONT]

Generates bash.bashrc templates for docker with a custom banner (ASCII art via
pyfiglet).

optional arguments:
-h, --help show this help message and exit
-t FILE, --template FILE
The banner template to use if not using the built-in
one; use placeholders {BANNER} and {PS1} in the
template. (default: None)
-b TEXT, --banner TEXT
The text to use for the banner (processed by
pyfiglet). Use the string '\n' (not the newline
character) to signal a line-break in the banner text.
(default: Banner)
-s TEXT, --subtitle TEXT
The subtitle text to use below the banner (regular
text), e.g., a version number. (default: None)
-f FONT, --font FONT The figlet font to use for generating the banner.
(default: standard)
-p TEXT, --ps1 TEXT The text to use in the PS1 environment variable (used
in the prompt). (default: docker)
-w COLS, --width COLS
The maximum width for the banner. (default: 80)
-o FILE, --output FILE
The file to store the generated bash.bashrc code in;
prints to stdout if not provided. (default: None)
-i, --print_templates
Outputs the default templates to stdout. (default:
False)
-L, --list_fonts Outputs the available fonts. (default: False)
-F FONT, --print_font_info FONT
Outputs information about the specified font.
(default: None)
```

## Example

Using the following command-line:

```commandline
docker-banner-gen \
-b "TF ObjDet" \
-s 1.14.0_2019-08-31 \
-p tf-objdet \
-o $HOME/bash.bashrc
```

The generated `$HOME/bash.bashrc` file looks like this:

```bash
# Copyright 2018 The TensorFlow Authors. All Rights Reserved.
# Copyright 2020 University of Waikato, Hamilton, NZ. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# ==============================================================================

export PS1="\[\e[31m\]tf-objdet\[\e[m\] \[\e[33m\]\w\[\e[m\] > "
export TERM=xterm-256color
alias grep="grep --color=auto"
alias ls="ls --color=auto"

echo -e "\e[1;31m"
cat<
```

* running as regular user

```
_____ _____ ___ _ _ ____ _
|_ _| ___| / _ \| |__ (_) _ \ ___| |_
| | | |_ | | | | '_ \| | | | |/ _ \ __|
| | | _| | |_| | |_) | | |_| | __/ |_
|_| |_| \___/|_.__// |____/ \___|\__|
|__/

1.14.0_2019-08-31

You are running this container as user with ID 12345 and group 12345,
which should map to the ID and group for your user on the Docker host. Great!

tf-objdet / >
```