Energi Gen 3 Core Node provisioning with Docker

This repository is now considered inactive as there is an official Energi Gen 3 Docker image and this repository is left for reference.

Below is the answer from the Energi support regarding running core node in a Docker container:

As for the Docker container - we do have a release at the Docker hub that can be pulled with the following command:
docker pull energicryptocurrency/energi3:v3.0.6
Once you have pulled the image, you can create a new container with
sudo docker run -d --name CONTAINER_NAME -v /home/USER/nrgdocker:/root energicryptocurrency/energi3:v3.0.6
This will create a new container named CONTAINER_NAME (replace with a name you seem fit) and create a persistent storage space to host your keystore / blockchain files at /home/USER/nrgdocker (replace the USER portion with the current Linux user you are creating the container with).

After the container is created, you can access the console and issue all the commands to check it is running and synchronizing (like miner.stakingStatus() and nrg.syncing) with the following command:
sudo docker exec -it CONTAINER_NAME energi3 attach
replacing CONTAINER_NAME by the name you chose for your container.

To import a new wallet, you can place the keystore files at the /home/USER/nrgdocker/.energicore3/keystore/ - again, replacing USER for the username you are currently creating the container with.

Here is a repository to make launching Energi Gen 3 Core Node in a Docker container easier using Docker Compose and the official Energi Gen 3 Docker image: energi3-docker-compose.

Energi Gen 3 Core Node provisioning with Docker

This fork was created to install Energi Gen 3 Core Node in a Docker container so Energi3 Core Node could be installed on any server that can run Docker.

Not sure, but it seems that it could be possible to run Energi Gen3 Core in a Docker container using this repository: https://github.com/energicryptocurrency/energi3 (using https://github.com/energicryptocurrency/energi3/blob/master/Dockerfile or https://github.com/energicryptocurrency/energi3/blob/master/containers/docker/master-ubuntu/Dockerfile).

Modifications were made with a single account staking in mind. More adjustments may be needed to stake using multiple accounts or to use Energi Gen 3 Core Node as a Masternode. Current solution for staking multiple accounts would be to run multiple containers, but it may be not an ideal solution performance-wise.

Install Energi Gen 3 Core Node using Docker

To run Energi Gen 3 Core Node in a Docker container:

clone this git repository: git clone https://github.com/eandersons/energi3-provisioning.git;
create the following files:
- Docker/configs/energi3_account_address that contains the Energi Gen 3 account address;
- Docker/configs/energi3_account_password that contains the Energi Gen 3 account password;
these files are used to get account's address and password to automatically unlock account for staking after the container has been started;
copy the file scripts/linux/nodemon.conf to Docker/configs and adjust values in it if the node monitor should send notifications to an email and/or a SMS email gateway;

run Docker container using docker-compose:

cd /path/to/energi3-provisioning/Docker
# `sudo` may be necessary to use `docker-compose`
docker-compose up --detach

open the necessary ports for external inbound access in router and/or firewall:
- 39795 TCP;
- 39796 TCP;
- 39797 TCP and UDP;
not sure about the first two ports, but 39797 TCP/UDP port is required for staking and Masternode as it is mentioned here.

Improvements for dockerization

Possible improvements for Energi Gen 3 Core Node dockerization:

adjust scripts/linux/energi3-linux-installer.sh to be suitable for installation in Docker containers as well;

DOCKER could be the environment variable that is used to control whether installation should be interactive or not with a value something like true, 1 or yes;
make necessary adjustments to stake multiple accounts in a single dockerized Energi Gen 3 Core Node instance;
make necessary adjustments to run dockerized Energi Gen 3 Core Node as a Masternode;
make Energi Core Node Monitor installation optional;
create a separate APT packages list for Energi Gen 3 Core installation in Docker container as not all of them are used in dockerized core version.

Any suggestions and solutions for improvements are welcome.