swimctl

A swimming pool automation controller

Install

Prepare the Raspberry Pi

• Enable cgroups:

  if (grep 'cgroup' /boot/firmware/cmdline.txt >/dev/null); then
    echo 'cgroups config found in /boot/firmware/cmdline.txt'
  else
    sudo sed -i 's/$/\ cgroup_memory=1 cgroup_enable=memory/' /boot/firmware/cmdline.txt
  fi
  

• Configure i2c

  sudo raspi-config nonint do_i2c 0
  

Install k3s using k3sup (ketchup)

From a machine with access to the Pi:

export hostname=''  # set hostname of Pi

k3sup install \
  --host "${hostname}" \
  --user pi \
  --context "${hostname}"
  --merge \
  --local-path ~/.kube/config

Create Secrets

kubectl --context "${hostname}" create secret generic swimctl \
  --from-literal=gh_token="${GH_TOKEN}" \
  --from-literal=gh_owner="${GH_REPO_OWNER}" \
  --from-literal=gh_repo_name="${GH_REPO_NAME}" \
  --from-literal=mqtt_password="${MQTT_PASSWORD}"

Be sure to replace the placeholder variables with the correct values.

Apply Static Manifests

k --context "${hostname}" apply -f .

Helm Install

helm --kube-context "${hostname}" install node-red oci://ghcr.io/schwarzit/charts/node-red --values values.yml

Update

helm --kube-context "${hostname}" upgrade node-red oci://ghcr.io/schwarzit/charts/node-red --values values.yml