add NewClient function to netbox package

Signed-off-by: Jacob Salmela <jacob.salmela@hpe.com>

pkg/netbox/netbox.go

@@ -0,0 +1,51 @@
+package netbox
+
+import (
+	"context"
+	"crypto/tls"
+	"fmt"
+	"net/http"
+	"os"
+
+	"github.com/hashicorp/go-retryablehttp"
+	"github.com/netbox-community/go-netbox/v3"
+)
+
+// NewClient creates a new netbox client using the environment variables
+// This maintains parity/compatiblity with Device-Type-Librery-Import repo
+// by using the same environment variables
+func NewClient() (*netbox.APIClient, context.Context, error) {
+	// use the certificates in the http client
+	tlsConfig := &tls.Config{}
+	if os.Getenv("IGNORE_SSL_ERRORS") == "True" {
+		tlsConfig.InsecureSkipVerify = true
+	} else {
+		tlsConfig.InsecureSkipVerify = false
+	}
+
+	// use TLS config in transport
+	tr := &http.Transport{
+		TLSClientConfig: tlsConfig,
+	}
+
+	// Setup our HTTP transport and client
+	httpClient := retryablehttp.NewClient()
+	httpClient.HTTPClient.Transport = tr
+	httpClient.Logger = nil
+	c := httpClient.StandardClient()
+
+	// create the netbox config
+	token := os.Getenv("NETBOX_TOKEN")
+	host := stripProtocolsAndSpecialChars(os.Getenv("NETBOX_URL"))
+	nbcfg := netbox.NewConfiguration()
+	nbcfg.Host = host
+	nbcfg.HTTPClient = c
+	nbcfg.DefaultHeader["Authorization"] = fmt.Sprintf("Token %s", token)
+	nbcfg.Debug = false
+	nbcfg.Scheme = "https"
+
+	ctx := context.Background()
+	client := netbox.NewAPIClient(nbcfg)
+
+	return client, ctx, nil
+}