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archived-teslamate/grafana/dashboards.sh
Iulius b74ecb3e53 Update dashboards.sh (#1645)
make the script portable e.g. to BSD
2021-05-25 17:40:39 +02:00

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#!/usr/bin/env bash
# The script assumes that basic authentication is configured
# (change the login credentials with `LOGIN`).
#
# DASHBOARD_DIRECTORY represents the path to the directory
# where the JSON files corresponding to the dashboards exist.
# The default location is relative to the execution of the
# script.
#
# URL specifies the URL of the Grafana instance.
#
# Source: https://github.com/cirocosta/sample-grafana/blob/master/update-dashboards.sh
set -o errexit
readonly URL=${URL:-"http://localhost:3000"}
readonly LOGIN=${LOGIN:-"admin:admin"}
readonly DASHBOARDS_DIRECTORY=${DASHBOARDS_DIRECTORY:-"./grafana/dashboards"}
main() {
local task=$1
echo "
URL: $URL
LOGIN: $LOGIN
DASHBOARDS_DIRECTORY: $DASHBOARDS_DIRECTORY
"
case $task in
backup) backup;;
restore) restore;;
*) exit 1;;
esac
}
backup() {
local dashboard_json
for dashboard in $(list_dashboards); do
dashboard_json=$(get_dashboard "$dashboard")
if [[ -z "$dashboard_json" ]]; then
echo "ERROR:
Couldn't retrieve dashboard $dashboard.
"
exit 1
fi
echo "$dashboard_json" > "$DASHBOARDS_DIRECTORY/$dashboard".json
echo "BACKED UP $(basename "$dashboard").json"
done
}
restore() {
find "$DASHBOARDS_DIRECTORY" -type f -name \*.json -print0 |
while IFS= read -r -d '' dashboard_path; do
folder_id=$(get_folder_id "$(basename "$dashboard_path" .json)")
curl \
--silent --show-error --output /dev/null \
--user "$LOGIN" \
-X POST -H "Content-Type: application/json" \
-d "{\"dashboard\":$(cat "$dashboard_path"), \
\"overwrite\":true, \
\"folderId\":$folder_id, \
\"inputs\":[{\"name\":\"DS_CLOUDWATCH\", \
\"type\":\"datasource\", \
\"pluginId\":\"cloudwatch\", \
\"value\":\"TeslaMate\"}]}" \
"$URL/api/dashboards/import"
echo "RESTORED $(basename "$dashboard_path")"
done
}
get_dashboard() {
local dashboard=$1
if [[ -z "$dashboard" ]]; then
echo "ERROR:
A dashboard must be specified.
"
exit 1
fi
curl \
--silent \
--user "$LOGIN" \
"$URL/api/dashboards/db/$dashboard" |
jq '.dashboard | .id = null'
}
get_folder_id() {
local dashboard=$1
if [[ -z "$dashboard" ]]; then
echo "ERROR:
A dashboard must be specified.
"
exit 1
fi
curl \
--silent \
--user "$LOGIN" \
"$URL/api/dashboards/db/$dashboard" |
jq '.meta | .folderId'
}
list_dashboards() {
curl \
--silent \
--user "$LOGIN" \
"$URL/api/search" |
jq -r '.[] | select(.type == "dash-db") | .uri' |
cut -d '/' -f2
}
main "$@"