gosm

A program written in Golang for monitoring services using various protocols listed below. Alerts can be sent via SMTP and/or SMS (Twilio API).

Supported Protocols

• HTTP
• HTTPS
• ICMP
• TCP

Installing from Source

# Download and install dependencies
$ go get -u github.com/martywachocki/gosm

# Build program
$ cd $GOPATH/src/github.com/martywachocki/gosm
$ go build

# Copy config.example.json to config.json
$ cp config.example.json config.json

# Modify config.json with your preferred settings
$ vi config.json

# Run program and supply path to config file
$ ./gosm /path/to/config.json

Current Build Version - 1.02

You can check the version of your build by running ./gosm version

Web UI

By default, the web UI listens on localhost on port 8030, and can be accessed in your browser at http://127.0.0.1:8030. The web UI currently gives you access to view the realtime status of your services, and add/edit/remove services.

Config

There is an example config file in the repo named config.example.json to use as a reference. Below is a brief description of each configuration item. All items are required unless explicity stated.

• verbose - Whether or not to print information to the console
• web_ui_host - The host the web UI will listen on
• web_ui_Port - The port the web UI will listen on
• check_interval - How often to check each service that is in an online state (seconds)
• pending_offline_interval - How often to check each service is in a pending or offline state (seconds)
• max_concurrent_checks - The maximum concurrent checks
• connection_timeout - Timeout threshold for checks (milliseconds)
• successful_http_status_codes - Which HTTP/HTTPS status codes are considered successful. Any status code not listed will be considered a failure response
• ignore_https_cert_errors - Whether or not to ignore HTTPS cert errors
• failed_check_threshold - How many consecutive failed checks are needed to consider a service offline
• send_email - Whether or not to send alerts via email
• email_recipients - Recipients of email alerts
• smtp_host - The SMTP server host to send emails from
• smtp_port - The SMTP server port
• smtp_email_address - The email address to send from
• smtp_username - The username for the SMTP server
• smtp_password - The password for the SMTP server
• send_sms - Whether or not to send alerts via sms
• sms_recipients - Recipients of sms alerts
• twilio_account_sid - Your Twilio Account SID
• twilio_auth_token - Your Twilio Auth Token
• twilio_from_number - Your Twilio phone number to send the SMS alerts from

TODO

• Implement SMTP and SMTP-TLS checks
• Add optional limits for email/sms alerts per second
• Add service status history to web UI
• Refactor to store config items in sqlite database and modify through web UI instead of JSON file
• Add optional authentication