Ansible Role: ctop

Role to download and install ctop the top-like interface for container metrics. View CPU, RAM and network I/O for your Docker containers at a glance from your terminal.

Requirements

• Ansible >= 2.9

• Linux Distribution

  • Debian Family

    • Debian

      • Stretch (9)
      • Buster (10)
      • Bullseye (11)

    • Ubuntu

      • Bionic (18.04)
      • Focal (20.04)

  • RedHat Family

    • Rocky Linux

      • 8

    • Fedora

      • 35

  • SUSE Family

    • openSUSE

      • 15.3

  • Note: other versions are likely to work but have not been tested.

• Docker (already installed)

Role Variables

The following variables will change the behavior of this role (default values are shown below):

# ctop version number
ctop_version: '0.7.7'

# SHA256 sum for the ctop redistributable
ctop_redis_sha256sum: 'b78374734ebe3d14b6edee3d5512c911c250d7fa7f3f964cb00acd3bc5a02a09'

# Directory to store files downloaded for ctop
ctop_download_dir: "{{ x_ansible_download_dir | default(ansible_env.HOME + '/.ansible/tmp/downloads') }}"

Example Playbook

- hosts: servers
  roles:
    - role: gantsign.ctop

Tab Completion for Zsh

Using Ansible

We recommend using the gantsign.antigen role to enable tab completion for ctop (this must be configured for each user).

- hosts: servers
  roles:
    - role: gantsign.ctop

    - role: gantsign.antigen
      users:
        - username: example
          antigen_bundles:
            - name: ctop
              url: gantsign/zsh-plugins
              location: ctop

Using Antigen

If you prefer to use Antigen directly add the following to your Antigen configuration:

antigen bundle gantsign/zsh-plugins ctop

More Roles From GantSign

You can find more roles from GantSign on Ansible Galaxy.

Development & Testing

This project uses Molecule to aid in the development and testing; the role is unit tested using Testinfra and pytest.

To develop or test you'll need to have installed the following:

• Linux (e.g. Ubuntu)
• Docker
• Python (including python-pip)
• Ansible
• Molecule

Because the above can be tricky to install, this project includes Molecule Wrapper. Molecule Wrapper is a shell script that installs Molecule and it's dependencies (apart from Linux) and then executes Molecule with the command you pass it.

To test this role using Molecule Wrapper run the following command from the project root:

./moleculew test

Note: some of the dependencies need sudo permission to install.

License

MIT

Author Information

John Freeman

GantSign Ltd. Company No. 06109112 (registered in England)