Docker Swarm Management: Easily Manage Docker Swarms with Python

Docker Swarm Management

Swarm Management is a python application, installed with pip. The application makes it easy to manage a Docker Swarm by configuring a single *.yml file describing which stacks to deploy, and which networks, configs or secrets to create.

Install Or Upgrade

  • pip install --upgrade SwarmManagement

Verify Installation

  • swm -help

Example

Create a swarm.management.yml file describing all properties of the swarm.

  • The swarm.management.yml file contains following properties:
stacks:
    <stack_name>: <compose_file>
networks:
    <network_name>: 
        encrypted: false
        driver: overlay
        attachable: true
        options:
          - --ipv6
configs:
    <config_name>: <config_file>
secrets:
    <secret_name>: <secret_file>
volumes:
    <volume_name>:
        driver: local
        driverOptions:
          - type=tmpfs
          - device=tmpfs
          - o=size=100m,uid=1000
env_files:
    - <environment_file>

Manage Swarm:

  • Start Swarm with:
    • -> swm -start
  • Stop Swarm with:
    • -> swm -stop
  • Restart Swarm with:
    • -> swm -restart
  • Deploy/Update or Remove a single stack:
    • -> swm -stack -deploy <stack_name>
    • -> swm -stack -remove <stack_name>
    • Or deploy/remove all stacks with the all attribute:
      • -> swm -stack -deploy all
      • -> swm -stack -remove all
  • Create or Remove a single network:
    • -> swm -network -create <network_name>
    • -> swm -network -remove <network_name>
    • Or create/remove all networks with the all attribute:
      • -> swm -network -create all
      • -> swm -network -remove all
  • Create or Remove a single config:
    • -> swm -config -create <config_name>
    • -> swm -config -remove <config_name>
    • Or create/remove all configs with the all attribute:
      • -> swm -stack -create all
      • -> swm -stack -remove all
  • Create or Remove a single secret:
    • -> swm -secret -create <secret_name>
    • -> swm -secret -remove <secret_name>
    • Or create/remove all secrets with the all attribute:
      • -> swm -secret -create all
      • -> swm -secret -remove all
  • Create or Remove a single volume:
    • -> swm -volume -create <volume_name>
    • -> swm -volume -remove <volume_name>
    • Or create/remove all volumes with the all attribute:
      • -> swm -volume -create all
      • -> swm -volume -remove all
  • SwarmManagement uses the swarm.management.yml file by default to configure the swarm.
    • Specify a single or multiple *.yml files to use for configuring the swarm using the -f attribute:
      • -> swm -start -f swarm-stacks.yml -f swarm-networks.yml
  • Additional info is found by asking SwarmManagement:
    • -> swm -help
    • -> swm -stack -help
    • -> swm -network -help
    • -> swm -config -help
    • -> swm -secret -help
    • -> swm -volume -help

Please have a look at an example of use here:

Section Features

Start/Stop or Restart Swarm

Deploy the swarm with swm -start, and stop the swarm with swm -stop. Restart the swarm with swm -restart <restart_delay_in_seconds>. The <restart_delay_in_seconds> argument is optional, and defaults to 10 seconds if not given.

Stacks

The stacks section lists all stacks to be deployed as: <stack_name>: <compose_file>

Networks

The networks section lists all networks to be created as, and each network is created with the following default properties:

  • encrypted: false
  • driver: overlay
  • attachable: true
  • options:
    • <list_of_network_options>

Configs

The configs section lists all configs to be created as: <config_name>: <config_file>

Secrets

The secrets section lists all secrets to be created as: <secret_name>: <secret_file>

Volumes

The volumes section lists all volumes to be created as, and each volumes is created with the following default properties:

  • driver: local
  • driverOptions:
    • <list_of_driver_options>

Environment variables

The env_files section lists all environmnet (.env) files with environment variables to expose. By convention, a present .env file will automatically be loaded.

Prerequisites

Additional Info

Publish New Version.

  1. Configure setup.py with new version.
  2. Install build tools: pip install twine wheel
  3. Build: python setup.py bdist_wheel
  4. Check: twine check dist/*
  5. Publish: twine upload dist/*

Run Unit Tests

  • python -m unittest

Download details:

Author: hansehe
Source: https://github.com/hansehe/SwarmManagement

License: MIT license

#docker #python 

Docker Swarm Management: Easily Manage Docker Swarms with Python
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