96 lines
3.8 KiB
Markdown
96 lines
3.8 KiB
Markdown
# HTTP Response Input Plugin
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This input plugin checks HTTP/HTTPS connections.
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### Configuration:
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```
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# HTTP/HTTPS request given an address a method and a timeout
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[[inputs.http_response]]
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## Deprecated in 1.12, use 'urls'
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## Server address (default http://localhost)
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# address = "http://localhost"
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## List of urls to query.
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# urls = ["http://localhost"]
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## Set http_proxy (telegraf uses the system wide proxy settings if it's is not set)
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# http_proxy = "http://localhost:8888"
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## Set response_timeout (default 5 seconds)
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# response_timeout = "5s"
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## HTTP Request Method
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# method = "GET"
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## Whether to follow redirects from the server (defaults to false)
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# follow_redirects = false
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## Optional HTTP Request Body
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# body = '''
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# {'fake':'data'}
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# '''
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## Optional substring or regex match in body of the response (case sensitive)
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# response_string_match = "\"service_status\": \"up\""
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# response_string_match = "ok"
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# response_string_match = "\".*_status\".?:.?\"up\""
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## Optional TLS Config
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# tls_ca = "/etc/telegraf/ca.pem"
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# tls_cert = "/etc/telegraf/cert.pem"
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# tls_key = "/etc/telegraf/key.pem"
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## Use TLS but skip chain & host verification
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# insecure_skip_verify = false
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## HTTP Request Headers (all values must be strings)
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# [inputs.http_response.headers]
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# Host = "github.com"
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## Optional setting to map reponse http headers into tags
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## If the http header is not present on the request, no corresponding tag will be added
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## If multiple instances of the http header are present, only the first value will be used
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# http_header_tags = {"HTTP_HEADER" = "TAG_NAME"}
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## Interface to use when dialing an address
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# interface = "eth0"
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```
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### Metrics:
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- http_response
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- tags:
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- server (target URL)
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- method (request method)
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- status_code (response status code)
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- result ([see below](#result--result_code))
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- fields:
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- response_time (float, seconds)
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- content_length (int, response body length)
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- response_string_match (int, 0 = mismatch / body read error, 1 = match)
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- http_response_code (int, response status code)
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- result_type (string, deprecated in 1.6: use `result` tag and `result_code` field)
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- result_code (int, [see below](#result--result_code))
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#### `result` / `result_code`
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Upon finishing polling the target server, the plugin registers the result of the operation in the `result` tag, and adds a numeric field called `result_code` corresponding with that tag value.
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This tag is used to expose network and plugin errors. HTTP errors are considered a successful connection.
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|Tag value |Corresponding field value|Description|
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--------------------------|-------------------------|-----------|
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|success | 0 |The HTTP request completed, even if the HTTP code represents an error|
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|response_string_mismatch | 1 |The option `response_string_match` was used, and the body of the response didn't match the regex. HTTP errors with content in their body (like 4xx, 5xx) will trigger this error|
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|body_read_error | 2 |The option `response_string_match` was used, but the plugin wasn't able to read the body of the response. Responses with empty bodies (like 3xx, HEAD, etc) will trigger this error|
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|connection_failed | 3 |Catch all for any network error not specifically handled by the plugin|
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|timeout | 4 |The plugin timed out while awaiting the HTTP connection to complete|
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|dns_error | 5 |There was a DNS error while attempting to connect to the host|
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### Example Output:
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```
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http_response,method=GET,result=success,server=http://github.com,status_code=200 content_length=87878i,http_response_code=200i,response_time=0.937655534,result_code=0i,result_type="success" 1565839598000000000
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```
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