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Add logging transport to log HTTP requests in log level -3

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The log level -3 is the minimum log level that is supported today, smaller than debug(-1) and -2(used to log some HRA related logs).

This commit adds a logging HTTP transport to log HTTP requests and responses to that log level.

It implements http.RoundTripper so that it can log each HTTP request with useful metadata like `from_cache` and `ratelimit_remaining`.
The former is set to `true` only when the logged request's response was served from ARC's in-memory cache.
The latter is set to X-RateLimit-Remaining response header value if and only if the response was served by GitHub, not by ARC's cache.
This commit is contained in:
Yusuke Kuoka
2022-02-19 09:21:14 +00:00
parent 4c53e3aa75
commit 4b557dc54c
6 changed files with 123 additions and 50 deletions
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7
github/github.go
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@@ -11,7 +11,9 @@ import (
"time"
"github.com/actions-runner-controller/actions-runner-controller/github/metrics"
"github.com/actions-runner-controller/actions-runner-controller/logging"
"github.com/bradleyfalzon/ghinstallation"
"github.com/go-logr/logr"
"github.com/google/go-github/v39/github"
"github.com/gregjones/httpcache"
"golang.org/x/oauth2"
@@ -29,6 +31,8 @@ type Config struct {
BasicauthUsername string `split_words:"true"`
BasicauthPassword string `split_words:"true"`
RunnerGitHubURL string `split_words:"true"`
Log *logr.Logger
}
// Client wraps GitHub client with some additional
@@ -85,7 +89,8 @@ func (c *Config) NewClient() (*Client, error) {
cached := httpcache.NewTransport(httpcache.NewMemoryCache())
cached.Transport = transport
metricsTransport := metrics.Transport{Transport: cached}
loggingTransport := logging.Transport{Transport: cached, Log: c.Log}
metricsTransport := metrics.Transport{Transport: loggingTransport}
httpClient := &http.Client{Transport: metricsTransport}
var client *github.Client