Update Glance Dashbard Beszel Metrics widget config with Beszel API key

beszel-glance.sh

#!/bin/zsh

# Info: Beszel Metrics (and other Beszel-related custom widgets for Glance Dashboard) are fun, but Beszel itself
# keeps invalidating (or expiring) the token. Since there's no known way to create a long-living token,
# this script should take care of it, if added to cron.
# (created and ran on zsh, adjust to your needs for different shells)

# !!! NOTE !!!
# !!! This will break formatting on your multiline templaces' code in the YML. Even using literal style
# !!! I wasn't able to make yq leave those alone.

# Beszel data
URL="https://beszel_host/api/collections/users/auth-with-password"
IDENTITY="[email protected]"
PASSWORD="beszelpassword"

# Glance Dashboard configuration file
YML_FILE="glance_directory/config/glance.yml"

# Beszel API call for token
RESPONSE=$(curl -s -X POST -H "Content-Type: application/json" -d "{\"identity\":\"$IDENTITY\",\"password\":\"$PASSWORD\"}" $URL)
TOKEN=$(echo $RESPONSE | jq -r '.token')

# Check token received
if [[ -z "$TOKEN" || "$TOKEN" == "null" ]]; then
    exit 1
fi

# Using https://github.com/mikefarah/yq/
# NOTE: update the widget title if it's different for your dashboard
yq -i "(.pages[].columns[].widgets[] | select(.type == \"custom-api\" and .title == \"Beszel Metrics\") .options.api-key) = \"$TOKEN\"  | .options.api-key.style = \"literal\"" $YML_FILE