ParaDrop daemon development

ParaDrop repository includes a set of tools to make development as easy as possible.

Currently this system takes the form of a bash script that automates installation and execution. This page outlines the steps required to manually install the dependencies, build the package and install the package into hardware/VMs.

We recommend using Ubuntu 16.04 LTS as the development environment for this version of ParaDrop because we use snapcraft to package and distribute the ParaDrop daemon.

You will only need to follow these instructions if you will be making changes to the ParaDrop daemon. Otherwise, you can use our pre-built ParaDrop snap or disk image from ParaDrop release.

Building ParaDrop daemon is the script we work with during the development. It provides following commands:

  • ./ setup installs development dependencies.
  • ./ run executes the ParaDrop daemon locally in the development machine. It is useful for debugging.
  • ./ build builds the snap package. Check snapcraft documentation for detailed information about snap packages and snapcraft.
  • ./ image builds the ubuntu core image that we can flash into SD card or SSD module of a ParaDrop router. It pre-installs the required snaps for us automatically, e.g. docker.

Installing ParaDrop into hardware/VMs

After the ParaDrop daemon snap is ready (paradrop-daemon_<version>_amd64.snap), we can install it on a ParaDrop router. Check Hardware Support for information about preparing a ParaDrop router.

Copy the paradrop snap to the router with ParaDrop image installed:

scp paradrop-daemon-<version>_amd64.snap paradrop@<router ip>:

Then we can log in to a ParaDrop router:

ssh paradrop@<router ip>

Install the dependent snaps in a ParaDrop router:

snap install docker

Install the newly created ParaDrop daemon snap package:

snap install --devmode paradrop-daemon-<version>_amd64.snap

Checking logs of ParaDrop daemon

After install the ParaDrop daemon, we can use ‘pdlog’ to check the log of ParaDrop daemon on the ParaDrop router:

paradrop-daemon.pdlog -f

Building ParaDrop tools

We have published the ParaDrop tools snap in the Ubuntu Snap Store. On the development machine, we can install it with below command:

snap install paradrop-tools

Get the manual of ParaDrop tools:

paradrop-tools.pdtools --help

More detailed information about ParaDrop tools can be find in Developing Applications. The git repository of ParaDrop includes the source code of ParaDrop tools. Developers can build the latest version of ParaDrop tools by running below command in the folder ‘tools’: