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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>
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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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27
notify_templates/notify_discord.sh
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@ -1,19 +1,30 @@
### DISCLAIMER: This is a third party addition to dockcheck - best effort testing.
NOTIFY_DISCORD_VERSION="v0.4"
NOTIFY_DISCORD_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 DISCORD_WEBHOOK_URL in your dockcheck.config file.
if [[ -z "${DISCORD_WEBHOOK_URL:-}" ]]; then
printf "Discord notification channel enabled, but required configuration variables are missing. Discord notifications will not be sent.\n"
remove_channel discord
fi
trigger_discord_notification() {
DiscordWebhookUrl="${DISCORD_WEBHOOK_URL}" # e.g. DISCORD_WEBHOOK_URL=https://discord.com/api/webhooks/<token string>
if [[ -n "$1" ]]; then
discord_channel="$1"
else
discord_channel="discord"
fi
UpperChannel="${discord_channel^^}"
DiscordWebhookUrlVar="${UpperChannel}_WEBHOOK_URL"
if [[ -z "${!DiscordWebhookUrlVar:-}" ]]; then
printf "The ${discord_channel} notification channel is enabled, but required configuration variables are missing. Discord notifications will not be sent.\n"
remove_channel discord
return 0
fi
DiscordWebhookUrl="${!DiscordWebhookUrlVar}" # e.g. DISCORD_WEBHOOK_URL=https://discord.com/api/webhooks/<token string>
JsonData=$( "$jqbin" -n \
--arg username "$FromHost" \