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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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30
notify_templates/notify_slack.sh
View file

@ -1,20 +1,32 @@
### DISCLAIMER: This is a third party addition to dockcheck - best effort testing.
NOTIFY_SLACK_VERSION="v0.3"
NOTIFY_SLACK_VERSION="v0.4"
#
# Setup app and token at https://api.slack.com/tutorials/tracks/posting-messages-with-curl
# 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 SLACK_ACCESS_TOKEN, and SLACK_CHANNEL_ID in your dockcheck.config file.
if [[ -z "${SLACK_ACCESS_TOKEN:-}" ]] || [[ -z "${SLACK_CHANNEL_ID:-}" ]]; then
printf "Slack notification channel enabled, but required configuration variables are missing. Slack notifications will not be sent.\n"
remove_channel slack
fi
trigger_slack_notification() {
AccessToken="${SLACK_ACCESS_TOKEN}" # e.g. SLACK_ACCESS_TOKEN=some-token
ChannelID="${SLACK_CHANNEL_ID}" # e.g. CHANNEL_ID=mychannel
if [[ -n "$1" ]]; then
slack_channel="$1"
else
slack_channel="slack"
fi
UpperChannel="${slack_channel^^}"
AccessTokenVar="${UpperChannel}_ACCESS_TOKEN"
ChannelIDVar="${UpperChannel}_CHANNEL_ID"
if [[ -z "${!AccessTokenVar:-}" ]] || [[ -z "${!ChannelIDVar:-}" ]]; then
printf "The ${slack_channel} notification channel is enabled, but required configuration variables are missing. Slack notifications will not be sent.\n"
remove_channel slack
return 0
fi
AccessToken="${!AccessTokenVar}" # e.g. SLACK_ACCESS_TOKEN=some-token
ChannelID="${!ChannelIDVar}" # e.g. CHANNEL_ID=mychannel
SlackUrl="https://slack.com/api/chat.postMessage"
curl -S -o /dev/null ${CurlArgs} \