check-http

check-http

Description

Check about http connection.

Synopsis

check-http -u http://example.com

Installation

First, build this program.

go get github.com/mackerelio/go-check-plugins
cd $(go env GOPATH)/src/github.com/mackerelio/go-check-plugins/check-http
go install

Or you can use this program by installing the official Mackerel package. See Using the official check plugin pack for check monitoring - Mackerel Docs.

Next, you can execute this program :-)

check-http -u http://example.com

Setting for mackerel-agent

If there are no problems in the execution result, add a setting in mackerel-agent.conf .

[plugin.checks.check-http-sample]
command = ["check-http", "-u", "http://example.com"]

Usage

Options

  -u, --url=                                  A URL to connect to
  -s, --status=                               mapping of HTTP status
      --no-check-certificate                  Do not check certificate
  -i, --source-ip=                            source IP address
  -H=                                         HTTP request headers
  -p, --pattern=                              Expected pattern in the content
      --max-redirects=                        Maximum number of redirects followed (default: 10)
      --connect-to=HOST1:PORT1:HOST2:PORT2    Request to HOST2:PORT2 instead of HOST1:PORT1

To override status

check-http -s 404=ok -u http://example.com
check-http -s 200-404=ok -u http://example.com

To change request destination

check-http --connect-to=example.com:443:127.0.0.1:8080 https://example.com # will request to 127.0.0.1:8000 but AS example.com:443
check-http --connect-to=:443:127.0.0.1:8080 https://example.com # empty host1 matches ANY host
check-http --connect-to=example.com::127.0.0.1:8080 https://example.com # empty port1 matches ANY port
check-http --connect-to=localhost:443::8080 https://localhost # empty host2 means unchanged, therefore will request to localhost:8080 AS localhost:443
check-http --connect-to=example.com:443:127.0.0.1: https://example.com # empty port2 means unchanged, therefore will request to 127.0.0.1:443

For more information

Please execute check-http -h and you can get command line options.