trigger.rs

English(Chinglish), 简体中文

Yet another GitHub/GitLab Webhook listener, run shell commands with the events received from GitHub/GitLab.

Built with rifling.

Install

• Use cargo:

  cargo install trigger

• Download binary (currently Linux only) from GitHub release, and move it to your PATH.

Usage

Commandline help:

trigger --help

Start the program

trigger --config "<path to config file>"

Or, start trigger with debug log enabled:

TRIGGER_LOG=debug trigger --config "<path to config file>"

debug can be replaced with any other logging level you like (including error, warn, info, debug, trace).

Configuration

Trigger's configurations are in YAML format.

Example:

# Sample configsettings:
host: 0.0.0.0:4567 # Host address trigger is going to listensecret: "secret"# Secret used to authenticate payload (Optional)print_commands: false # Print command or not (Optional, default: false)capture_output: false # Capture output of the commands (Optional, default: false)exit_on_error: true # Exit on error in commands (Optional, default: false)kotomei: true # Warn you about letting @kotomei study for his exam or not (Optional, default: true)events:
common: | set -e; PAYLOAD='{payload}'; function get_prop { echo $(echo ${PAYLOAD} | jq $1 | tr -d '"'); } SENDER=$(get_prop '.sender.login'); SENDER_ID=$(get_prop '.sender.id');all: echo "This command will be executed in all the events, the current event is {event}";push: echo "User \"${SENDER}\" with ID \"${SENDER_ID}\" pushed to this repository";watch: | ACTION=$(get_prop '.action'); echo "GitHub user \"${SENDER}\" with ID \"${SENDER_ID}\" ${ACTION} watching this repository";else: echo "\"${SENDER}\" with ID \"${SENDER_ID}\" sent {event} event";

• Secret is not required, but it's strongly recommended.
• Commands in events.common will be executed before the actual event.
• Commands in events.all will be executed after receiving any valid request.
• All available events are listed here (GitHub) and here (GitLab).
  • Note: Events from GitLab need to be reformatted as replacing " "(whitespaces) with "_"(underscore) and make sure it's in lower case.
    • e.g. Push Hook in GitLab's documentation will be push_hook in trigger's configuration.
• Commands in events.else will be executed when no matching event defined.
• Placeholder {payload} in commands will be replaced with unparsed payload.
  • Please use single quotation mark to wrap around it.
  • It is possible to use jq to parse it if needed.
• Other placeholders (if not included in the delivery, they will be replaced with unknown):
  • {id} will be replaced with UUID of the event (GitHub only, GitLab does not provide this).
  • {event} will be replaced with type of the event.
  • {signature} will be replaced with signature of the payload.
  • {request_body} will be replaced with body of the request ().

It is also recommended to use it with a reverse proxy, such as nginx:

location /hook {proxy_passhttp://0.0.0.0:9999/;}

Docker

1. To use trigger with docker, pull the image first:

   docker pull kaymw/trigger

2. Prepare your configuration as mentioned above.
3. Start the container

   docker run -p 4567:4567 --volume $PWD:/work kaymw/trigger trigger --config trigger.yaml

Note: In this docker image, trigger's default working directory is /work, and the default port is 4567.

Credit: @musnow

Other Snippets

Systemd unit (trigger.service):

[Unit]
Description=Yet another GitHub Webhook listener
After=network-online.target
[Service]
Type=simple
WorkingDirectory=/path/to/your/config/
ExecStart=/path/to/trigger /path/to/your/config/file.yaml
Restart=always
RestartSec=3
[Install]
WantedBy=multi-user.target
# ｓｙ
# ｓｔｅ
# ｍｄ

License and Credits

This software is distributed under the terms of MIT license, for more details, please consult LICENSE file.

Trigger uses pretty_env_logger and log to log.
Trigger uses yaml-rust to parse configurations.
Trigger uses hyper to create web server.
Trigger uses run_script to run shell code.