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Flashing and installation

Hardware Installation​

PCB soldering will take around 10 minutes wire soldering will take around 7 minutes

  • Flash SD card with Ubuntu 20.04-4.9 via etcher
  • Solder 2 pin header to pcb
  • Solder 40 pin header to pcb
  • Solder DC jack to pcb
  • Solder 4xRJ45 ports to pcb

pcb

  • Cut a red and black wire with a length of 50mm
  • Solder the wires to the +12v/GND header on the odroid
  • Solder the other ends to a 2 pin socket header

odroid solder

  • First connect the header to the main board
  • Then slide in the odroid into the main board

odroid in board

Packaging & Casing​

This will take around 6 minutes

Installation​

This will take around 5 minutes

Prerequisites​

  • Add root ssh keys (default password is odroid)
# Run on the host machine where the keys are stored

export HOST_IP=x.x.x.x
echo "
sk-ssh-ed25519@openssh.com AAAAGnNrLXNzaC1lZDI1NTE5QG9wZW5zc2guY29tAAAAIBrjMvIr/GA6zHA/cFnk49mpt9+rI58M/rgJOTkd8IP9AAAAE3NzaDp0cmlrdGhvbS1yb290LWE= trikthom-root-a
sk-ssh-ed25519@openssh.com AAAAGnNrLXNzaC1lZDI1NTE5QG9wZW5zc2guY29tAAAAIG0DwMFm7oUaOD8KvV9819Y9bB6vCCjHPzngX3cWmIzzAAAAE3NzaDp0cmlrdGhvbS1yb290LWI= trikthom-root-b
ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIgXyUPME1TLGquHDJsDSoUFrCbrri1edogFksTG94t5 remote@trikthom.net
" | ssh root@$HOST_IP "mkdir -p ~/.ssh && cat >> ~/.ssh/authorized_keys"
  • Login to the client machine as root with default password odroid
ssh root@$HOST_IP
  • Install docker
# Logged in as root

apt update
apt install -y docker.io
  • Login to ghcr.io with trikthombot credentials from 1Password o5rrrrvqzbarxg4rdmvsbxglte (1Password -T TrikThom Bot - Harmony Beta Participant)
docker login ghcr.io -u trikthombot
  • Disable password login
sudo sed -E -i 's|^#?(PasswordAuthentication)\s.*|\1 no|' /etc/ssh/sshd_config
if ! grep '^PasswordAuthentication\s' /etc/ssh/sshd_config; then echo 'PasswordAuthentication no' |sudo tee -a /etc/ssh/sshd_config; fi
sudo systemctl restart ssh.service

Add remote tunnels​

  • Get an available REMOTE_ID from the Edge Database
  • Add 1000 to the REMOTE_ID to get the REMOTE_TELEMETRY_ID
  • Subtract 1000 from the REMOTE_ID to get the REMOTE_SSH_ID
  • Get the REMOTE_AUTH key from 1Password ahzt6bohxussuy2eg5mp4hfvmq
export REMOTE_ID=xxxx
export REMOTE_AUTH=xxxx
export REMOTE_TELEMETRY_ID=$(($REMOTE_ID + 1000))
export REMOTE_SSH_ID=$(($REMOTE_ID - 1000))

docker run -d --restart always --network=host  --name harmony-remote jpillora/chisel client --auth harmony:$REMOTE_AUTH https://remote.trikthom.com R:$REMOTE_ID:0.0.0.0:8082
docker run -d --restart always --network=host  --name harmony-remote-ssh jpillora/chisel client --auth harmony:$REMOTE_AUTH https://remote.trikthom.com R:$REMOTE_SSH_ID:0.0.0.0:22
docker run -d --restart always --network=host  --name harmony-remote-telemetry jpillora/chisel client --auth harmony:$REMOTE_AUTH https://remote.trikthom.com R:$REMOTE_TELEMETRY_ID:0.0.0.0:9100

Install harmony​

  • DOCKER_PASSWORD is the ghp_ token from 1Password o5rrrrvqzbarxg4rdmvsbxglte
  • INFLUX_TOKEN from 1Password ``
export DOCKER_USERNAME=trikthombot
export DOCKER_PASSWORD=xxxx
export DOCKER_IMAGE=ghcr.io/trikthom/harmony
export INFLUX_TOKEN=jM4rE2VFb2bySf6IAjJGkRVpQ6bPB8k83p3fwP9vUVn3w7hWZAOP4LHWhlBs0gzEYGUylsqRvlFMuGtR-4w2og==
export HARMONY_PIN=xxxx
docker pull ghcr.io/trikthom/harmony/agent
docker run -d --name harmony-agent --restart always --network=host --privileged \
-v /var/run/docker.sock:/var/run/docker.sock \
-e DOCKER_USERNAME=$DOCKER_USERNAME \
-e DOCKER_PASSWORD=$DOCKER_PASSWORD \
-e DOCKER_IMAGE=$DOCKER_IMAGE \
-e INFLUX_TOKEN=$INFLUX_TOKEN \
-e HARMONY_PIN=$HARMONY_PIN \
ghcr.io/trikthom/harmony/agent

curl -X POST localhost:8080/api/setup

Install node-exporter​

docker run -d --name node-exporter --restart always -p 9100:9100 prom/node-exporter