integration: add cluster setup and configuration and a few tests

integration/internal/cluster/cluster.go

@@ -0,0 +1,46 @@
+package cluster
+
+import (
+	"net/http"
+	"net/http/cookiejar"
+
+	"github.com/rs/zerolog/log"
+	"golang.org/x/net/publicsuffix"
+)
+
+type Cluster struct {
+	workingDir string
+
+	transport http.RoundTripper
+	certs     *TLSCerts
+}
+
+func New(workingDir string) *Cluster {
+	return &Cluster{
+		workingDir: workingDir,
+	}
+}
+
+func (cluster *Cluster) NewHTTPClient() *http.Client {
+	jar, err := cookiejar.New(&cookiejar.Options{PublicSuffixList: publicsuffix.List})
+	if err != nil {
+		panic(err)
+	}
+	return &http.Client{
+		Transport: &loggingRoundTripper{cluster.transport},
+		CheckRedirect: func(req *http.Request, via []*http.Request) error {
+			return http.ErrUseLastResponse
+		},
+		Jar: jar,
+	}
+}
+
+type loggingRoundTripper struct {
+	http.RoundTripper
+}
+
+func (rt *loggingRoundTripper) RoundTrip(req *http.Request) (res *http.Response, err error) {
+	res, err = rt.RoundTripper.RoundTrip(req)
+	log.Debug().Str("method", req.Method).Str("url", req.URL.String()).Msg("http request")
+	return res, err
+}