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Add file notification channel (#222)

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* Add file notification channel

* Bypass file channel notifications for dockcheck.sh script

* Implement notification channel template reuse and advanced configuration variables.

* Fix text insertion formatting for dockcheck script and container updates.

* Fix dockcheck.sh notification csv and text output.

* Fix ntfy variable references and replace tr for uppercase conversion.

* Fix ALLOWEMPTY logic, undefined snippet case, and README formatting.

* Refactor notification send/skip logic. Adjust missing variable return codes.

* Adjust notifications README section for clarity and readability.

---------

Co-authored-by: Matthew Oleksowicz <matt@everyoneneeds.it>
This commit is contained in:
vorezal 2025-09-15 05:25:23 -04:00 • committed by GitHub
parent 37f33d7a06
commit 31a45f1d84
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18 changed files with 620 additions and 267 deletions
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33
notify_templates/notify_telegram.sh
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@ -1,28 +1,41 @@
### DISCLAIMER: This is a third party addition to dockcheck - best effort testing.
NOTIFY_TELEGRAM_VERSION="v0.4"
NOTIFY_TELEGRAM_VERSION="v0.5"
#
# Required receiving services must already be set up.
# Leave (or place) this file in the "notify_templates" subdirectory within the same directory as the main dockcheck.sh script.
# If you instead wish make your own modifications, make a copy in the same directory as the main dockcheck.sh script.
# Do not modify this file directly within the "notify_templates" subdirectory. Set TELEGRAM_CHAT_ID and TELEGRAM_TOKEN in your dockcheck.config file.
if [[ -z "${TELEGRAM_CHAT_ID:-}" ]] || [[ -z "${TELEGRAM_TOKEN:-}" ]]; then
printf "Telegram notification channel enabled, but required configuration variables are missing. Telegram notifications will not be sent.\n"
remove_channel telegram
fi
trigger_telegram_notification() {
if [[ -n "$1" ]]; then
telegram_channel="$1"
else
telegram_channel="telegram"
fi
UpperChannel="${telegram_channel^^}"
TelegramTokenVar="${UpperChannel}_TOKEN"
TelegramChatIdVar="${UpperChannel}_CHAT_ID"
TelegramTopicIdVar="${UpperChannel}_TOPIC_ID"
if [[ -z "${!TelegramChatIdVar:-}" ]] || [[ -z "${!TelegramTokenVar:-}" ]]; then
printf "The ${telegram_channel} notification channel is enabled, but required configuration variables are missing. Telegram notifications will not be sent.\n"
remove_channel telegram
return 0
fi
if [[ "$PrintMarkdownURL" == true ]]; then
ParseMode="Markdown"
else
ParseMode="HTML"
fi
TelegramToken="${TELEGRAM_TOKEN}" # e.g. TELEGRAM_TOKEN=token-value
TelegramChatId="${TELEGRAM_CHAT_ID}" # e.g. TELEGRAM_CHAT_ID=mychatid
TelegramToken="${!TelegramTokenVar}" # e.g. TELEGRAM_TOKEN=token-value
TelegramChatId="${!TelegramChatIdVar}" # e.g. TELEGRAM_CHAT_ID=mychatid
TelegramUrl="https://api.telegram.org/bot$TelegramToken"
TelegramTopicID=${TELEGRAM_TOPIC_ID:="0"}
TelegramTopicID=${!TelegramTopicIdVar:="0"}
JsonData=$( "$jqbin" -n \
--arg chatid "$TelegramChatId" \