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Building Options

Build Docker Images

If you prefer building a docker image, tangle-accelerator also provides build rules for it. Note that you still have to edit configurations in accelerator/config.h.

$ make && bazel run //accelerator:docker_image

The docker image will be generated in local machine.

$ docker images
REPOSITORY                    TAG                 IMAGE ID
dltcollab/accelerator         docker_image        71ea01606000

Push Docker Image to Docker Hub

Before pushing the docker image to Docker Hub, you need to log in the docker registry:

$ docker login

Then you could modify docker image REPOSITORY and TAG as you like.

$ docker tag dltcollab/accelerator:docker_image dltcollab/tangle-accelerator:v0.9.1
$ docker images
REPOSITORY                    TAG                 IMAGE ID
dltcollab/tangle-accelerator  v0.9.1              71ea01606000
dltcollab/accelerator         docker_image        71ea01606000

Then you could push the docker image to Docker Hub.

$ docker push dltcollab/tangle-accelerator:v0.9.1

Enable MQTT connectivity

MQTT connectivity is an optional feature allowing IoT endpoint devices to collaborate with tangle-accelerator.

$ make MQTT && bazel run --define mqtt=enable //accelerator

Note you may need to set up the MQTT_HOST and TOPIC_ROOT in config.h to connect to a MQTT broker, or you can use CLI option --mqtt_host, and --mqtt_root to set MQTT broker address and MQTT topic root, respectively. For more information for MQTT connectivity of tangle-accelerator, you could read connectivity/mqtt/usage.md.

Enable external database for transaction reattachment

Transaction reattachment is an optional feature.

You can enable it in the build time with command :

$ make && bazel run --define db=enable //accelerator

When enabling reattachment, every transaction issues from the tangle-accelerator API called Send Transfer Message will be stored in the specific ScyllaDB host and response a UUID string for each transfer message as the identifier. With a promoting process that monitors the status of storing transactions, persistent pending transactions will be reattached to the Tangle.

Transaction reattachment relies on ScyllaDB, you need to install the dependency by following commands.

For Ubuntu Linux 16.04/x86_64:

$ wget https://downloads.datastax.com/cpp-driver/ubuntu/16.04/cassandra/v2.14.1/cassandra-cpp-driver_2.14.1-1_amd64.deb
$ wget https://downloads.datastax.com/cpp-driver/ubuntu/16.04/cassandra/v2.14.1/cassandra-cpp-driver-dev_2.14.1-1_amd64.deb
$ sudo dpkg -i cassandra-cpp-driver_2.14.1-1_amd64.deb
$ sudo dpkg -i cassandra-cpp-driver-dev_2.14.1-1_amd64.deb

For Ubuntu Linux 18.04/x86_64:

$ wget https://downloads.datastax.com/cpp-driver/ubuntu/18.04/cassandra/v2.14.1/cassandra-cpp-driver_2.14.1-1_amd64.deb
$ wget https://downloads.datastax.com/cpp-driver/ubuntu/18.04/cassandra/v2.14.1/cassandra-cpp-driver-dev_2.14.1-1_amd64.deb
$ sudo dpkg -i cassandra-cpp-driver_2.14.1-1_amd64.deb
$ sudo dpkg -i cassandra-cpp-driver-dev_2.14.1-1_amd64.deb