A simple configuration management tool designed for performing administrative actions on Linux servers
Project description
Configurator
Welcome to the Configurator! Configurator is a Python-based command line interface (CLI) which issues commands based on user-defined "tasks" to "hosts" over SSH.
Installation
Option 1: Install from TestPyPI
- Install the configurator:
pip install atkinsonm-configurator
Option 2: Install from Source
- Clone this package.
cd part-two
.sudo python3 setup.py
.- Run
atkinsonm-configurator --help
to confirm the install.
Using the Configurator
atkinsonm-configurator --help
is your friend.
Configuring Hosts
atkinsonm-configurator host --help
lists commands for managing hosts. You can also manage the hosts file by hand. See samples/hosts.yaml for examples.
At this time we support password authentication only and assume the password is for the root user. We only support specifying hosts by IP address at this time.
The hosts must have a root user, must allow logins to the root user using password authentication, and must be accessible over SSH. No other dependencies are required for installation on target hosts (and therefore no bootstrap.sh
is provided with this package).
Configuring Tasks
Modify the hosts file (YAML format, default location /home/$USER/configurator-tasks.yaml
) by hand using the supported task types below. The format of the file is a top-level key called tasks
which is a list of task definitions.
See samples/tasks.yaml for examples.
Tasks are executed in the order they are defined. Define related task dependencies before successors.
Shared Properties
All tasks have these properties.
- name: str
Tasks which support specifying a service to restart have these additional properties:
- restart_service (str): the name of a service to restart with
service <service-name> restart
Supported Task Types
File
Create files, set content and metadata
This will replace any files/contents already present at specified locations. Use with caution.
- type: file
- path (str): absolute path or relative path (from the root user's home directory) of the file to create
- contents (str): the file contents
- owner (str) the file owner (user)
- group (str) the file owner (group)
- mode (int) the file mode
tasks:
- name: hello
type: file
path: /root/hello
contents: hello!
owner: root
group: root
mode: 644
Escape single quotes in contents.
File Remove
Removes a file at the specified path.
- type: file_remove
- path (str): absolute path or relative path (from the root user's home directory) of the file to remove
- name: remove default index
type: file_remove
path: /var/www/html/index.html
Package
Installs and uninstalls packages (apt support only)
- type: package
- install (bool):
True
orFalse
.True
means install,False
means uninstall - package_name (str): the name of the package
Running Commands
Use atkinsonm-configurator task run
to run all tasks on all hosts in sequence.
Configuring an Ubuntu Server with Apache and PHP
samples/webserver-tasks.yaml has tasks to set up an Ubuntu server to install Apache and PHP and run a Hello World program in PHP. To run it:
- Install
atkinsonm-configurator
(command above) - Copy the contents of samples/webserver-tasks.yaml to a local file (e.g.
/home/$USER/webserver-config.yaml
) - Configure hosts per instructions above (hosts file not included here for security reasons)
- Run
atkinsonm-configurator task run -t /home/$USER/webserver-config.yaml
- Test your new webserver with
curl -sv "http://ADDRESS"
Future Improvements
There are a number of improvements I would make to this application given more time. Many TODOs are called out in code comments. I will highlight a few significant ones here:
- Support authentication other than root user
- Privilege escalation (
sudo
) where necessary for non-root users
- Privilege escalation (
- SSH key-based authentication
- Support for other package managers
- General code cleanliness
Project details
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