https://github.com/suhlig/slack-message

Send messages to a Slack channel from the command line
https://github.com/suhlig/slack-message

cloudfoundry command-line docker slack

Last synced: 21 days ago
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Send messages to a Slack channel from the command line

• Host: GitHub
• URL: https://github.com/suhlig/slack-message
• Owner: suhlig
• Created: 2017-03-25T23:52:21.000Z (almost 8 years ago)
• Default Branch: master
• Last Pushed: 2021-07-17T16:43:17.000Z (over 3 years ago)
• Last Synced: 2024-12-16T20:08:50.534Z (24 days ago)
• Topics: cloudfoundry, command-line, docker, slack
• Language: Ruby
• Size: 4.88 KB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.markdown

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README

        
# Send a Slack message

[![Docker Automated build](https://img.shields.io/docker/automated/suhlig/slack-message.svg)](docker.io)

This is an executable script for sending messages to a Slack channel from the command line. It wraps the [slack-notifier](https://github.com/stevenosloan/slack-notifier) gem. It is also available as Docker image.

# Build

```bash

docker build --rm --force-rm -t suhlig/slack-message .

```

# Run

1. Source this Bash function:

    ```bash

    slack-message(){

      docker run                  \

          --interactive           \

          --tty                   \

          --rm                    \

          --env SLACK_WEBHOOK_URL \

        suhlig/slack-message      \

        "$@"

    }

    ```

1. Run it:

    ```bash

    slack-message --help

    ```

# Example

This command builds a colored Slack message with a title and an image of a random cat (courtesy of [thecatapi.com](http://thecatapi.com)):

```bash

# grab a random cat URL

random_cat=$(curl --write-out "%{url_effective}\n" --head --location --silent --show-error --output /dev/null http://thecatapi.com/api/images/get)

# send a Slack message with a cat

slack-message --color 'e86537' --title "Cat #$RANDOM" --image_url "$random_cat" Please have a look at this cute cat.

```

# Acknowledgements

* Thanks to [Jess Frazelle](https://github.com/jessfraz) for her [Docker files](https://github.com/jessfraz/dockerfiles) and [Docker shell functions](https://github.com/jessfraz/dotfiles/blob/master/.dockerfunc)

* [Unix & Linux Stack Exchange](http://unix.stackexchange.com/questions/45325/get-urls-redirect-target-with-curl) shows the basics or getting the redirect URL. This is necessary because Slack treats multiple uses of a single URL as the same, even if it redirects to a different place on each request (as [The Cat API](http://thecatapi.com) does).