cmd_health_check

Exposes an http endpoint that can be used to check the exit status of an arbitrary bash command.

Generic version of sidekiq_health_check.

Example

Suppose you want to expose an http endpoint to check the status of a postgres database. In that case, you could run something like this:

$ export PGPASSWORD="h0tdoggi3!"
$ cmd_health_check -verbose -cmd "/usr/bin/psql -q -c 'select 1' myDb health_check_user" -port 6480

Now http://localhost:6480/ping will respond with a 200 if the db is healthy, and a 500 otherwise.

Install

Download the latest release, extract it, and put it somewhere on your PATH.

$ go get github.com/atongen/cmd_health_check

$ mkdir -p $GOPATH/src/github.com/atongen
$ cd $GOPATH/src/github.com/atongen
$ git clone git@github.com:atongen/cmd_health_check.git
$ cd cmd_health_check
$ go install
$ rehash

Testing

[wip]

$ cd $GOPATH/src/github.com/atongen/cmd_health_check
$ go test -cover

Releases

$ mkdir -p $GOPATH/src/github.com/atongen
$ cd $GOPATH/src/github.com/atongen
$ git clone git@github.com:atongen/cmd_health_check.git
$ cd cmd_health_check
$ make release

Command-Line Options

$ cmd_health_check -h
Usage of cmd_health_check:
  -cmd string
        Health check bash command
  -port int
        Port to listen on
  -verbose
        Print verbose output
  -version
        Print version information and exit