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A CLI client for Lightbend ConductR

Project description

Build status of the master branch Latest version released on PyPi

Command Line Interface (CLI) for Lightbend ConductR

Installation

Python 3 is required.

macOS

Use homebrew to install Python 3:

brew install python3

Other operation systems

Install Python 3 with the system package manager or use one of the Python 3 distributions from https://www.python.org/downloads

Install using pip3

Install the conductr-cli with pip3. Depending on your OS the command is:

macOS

pip3 install conductr-cli

Linux

Install the conductr-cli package as you have installed other pip3 package. To install the package for all users, use:

sudo pip3 install conductr-cli

To install it only for the current user, use:

pip3 install --user conductr-cli

Windows

pip install conductr-cli

Upgrade using pip3

The conductr-cli can be updated by using the pip3 -U option:

macOS

pip3 install -U conductr-cli

Linux

Install the conductr-cli package as you have installed other pip3 package. To install the package for all users, use:

sudo pip3 install -U conductr-cli

To install it only for the current user, use:

pip3 install --user -U conductr-cli

Windows

pip install -U conductr-cli

Install as a deb package

Build a docker image for building a deb package:

docker build -t debian-distribution deb_dist/

Run built docker image:

docker run -v $(pwd):/source debian-distribution

Install built deb package:

dpkg -i deb_dist/python3-conductr-cli_0.1-1_all.deb

Install required dependencies:

apt-get install -f

Autocomplete support

If you have installed argcomplete and want to activate Bash completion for the CLI, you have to execute the following, either transiently in your terminal session or more permanently in your .bashrc or .bash_profile:

eval "$(register-python-argcomplete conduct)"
eval "$(register-python-argcomplete sandbox)"

Alternatively, if you have a Bash version 4.2 or later, you can activate global completion once:

activate-global-python-argcomplete --dest=/path/to/bash_completion.d

If you are running zsh, execute the following command to enable autocomplete:

autoload bashcompinit && autoload compinit && bashcompinit && compinit && eval "$(register-python-argcomplete conduct)" && eval "$(register-python-argcomplete sandbox)"

Setup Bintray credentials

Bundles and ConductR images are hosted on Bintray. Please ensure that your Bintray credentials that have access to the Lightbend repositories are located at: .lightbend/commercial.credentials.

How to get a Bintray account that has access to the Lightbend repositories is described at: http://developers.lightbend.com/docs/reactive-platform/2.0/setup/setup-sbt.html

CLI Usage

sandbox

Execute sandbox with any of the supported sub-commands or options, e.g.

$ sandbox -h
usage: sandbox [-h] {version,run,stop} ...

optional arguments:
  -h, --help            show this help message and exit

commands:
  {version,run,stop}    Use one of the following sub commands
    version             print version
    run                 Run ConductR sandbox cluster
    stop                Stop ConductR sandbox cluster

The sandbox is connecting to the running Docker host to start the ConductR nodes inside Docker containers. The host IP address of the Docker host is automatically resolved. It is also possible to skip this automatic resolving of the Docker host IP by setting the environment variable CONDUCTR_HOST which will be then used instead.

To start a ConductR sandbox cluster with 3 nodes and the visualization feature run:

sandbox run <CONDUCTR_VERSION> --nr-of-instances 3 --feature visualization

Pick up the latest ConductR version from https://www.lightbend.com/product/conductr/developer

To stop this cluster run:

sandbox stop

conduct

Execute conduct with any of the supported sub-commands or options, e.g.

$ conduct -h
usage: conduct [-h]
              {version,info,service-names,acls,load,run,stop,unload,events,logs,setup-dcos}
              ...

optional arguments:
  -h, --help            show this help message and exit

commands:
  {version,info,service-names,acls,load,run,stop,unload,events,logs,setup-dcos}
                        Use one of the following sub commands
    version             print version
    info                print bundle information
    service-names       print the service names available to the service
                        locator
    acls                print request ACL information
    load                load a bundle
    run                 run a bundle
    stop                stop a bundle
    unload              unload a bundle
    events              show bundle events
    logs                show bundle logs
    setup-dcos          setup integration with the DC/OS CLI so that 'dcos
                        conduct ..' commands can be used to access ConductR
                        via DC/OS

Most sub-commands connect to a ConductR instance and therefore you have to specify its IP and port. This can be done in different ways. You can specify the IP via the --host option and the port via the --port option. Alternatively, you can set the environment variables CONDUCTR_HOST and CONDUCTR_PORT. Default values will be used if both are not set. The port defaults to 9005. By default, the IP address will be automatically resolved to the Docker host IP.

Here’s an example for loading a bundle:

conduct load sbt-conductr-tester-1.0.0-e172570d3c0fb11f4f9dbb8de519df58dcb490799f525bab43757f291e1d104d.zip

Note that when specifying IPV6 addresses then you must surround them with square brackets e.g.:

conduct info --host [fe80:0000:0000:0000:0cb3:e2ff:fe74:902d]

To enable HTTP Basic Authentication, provide the following settings file in the ~/.conductr/settings.conf.

conductr {
  auth {
    enabled  = true
    username = "steve"
    password = "letmein"
  }
  server_ssl_verification_file = "/home/user/validate-server.pem"
}
When the switch enabled is set to true, HTTP Basic Authentication is enabled. Set to false to disable.

Set the username and password accordingly. The server_ssl_verification_file points to an absolute path of the file used to validate the SSL cert of the server.

It’s important to note the CLI will fail with an error if HTTP Basic Authentication is enabled without HTTPS.

shazar

The shazar command can be used:

  • for packaging a directory that has a structure of a bundle to a bundle archive;

  • for packaging a bundle’s configuration to a bundle archive;

In both cases the source files are zipped and a SHA256 digest of the archive is appended to the bundle archive file name.

For pointers on command usage run shazar -h.

Developers

> Note that we presently package the dcos library as source. When https://github.com/dcos/dcos-cli/pull/823 becomes available then we should remove this directory and depend on it directly.

For macOS, you should ensure firstly that you have the latest Xcode command line tools installed:

xcode-select --install

Now, install the latest python3 version on your system, on macOS use:

brew install python3

The tests executing the tests in multiple python versions. For all OS environments, pyenv is used to support multiple installations of python during testing. On macOS, use brew to install pyenv:

brew install pyenv

Installation instructions for other OS can be found at https://github.com/yyuu/pyenv. With pyenv installed you can do things like pyenv local 3.4.3 or pyenv local system. Don’t forget to update your login profile to setup pyenv (the doc describes how).

After pyenv has been installed, add python 3.4. On macOS use:

CFLAGS="-I$(brew --prefix openssl)/include" \
LDFLAGS="-L$(brew --prefix openssl)/lib" \
pyenv install -v 3.4.3

For others OS this is easier:

pyenv install -v 3.4.3

Make sure to install the tox module for multi-environment testing:

pip3 install tox

Afterwards, install the necessary dependencies for each environment and to set the python versions for conductr-cli:

pip3 install .
pyenv local system 3.4.3

Running

If you want to run conduct or sandbox locally, i.e. without installation, cd into the project directory and execute:

pip3 install -e .
conduct
sandbox

Tests

Execute the following command to run unit tests for the current version of python3:

python3 -m unittest

Execute the following command to run all defined tests:

tox

Releasing

CLI releases can be performed completely from the GitHub project page. Follow these steps to cut a release:

  1. Edit conductr_cli/__init__.py file to contain the version to be released.

  2. Create a new release on the Github releases page.

After CI build is finished for the tagged commit, new version will automatically be deployed to PyPi repository.

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