Pass SUBNET URL to console (#18503)

When minio runs with MINIO_CI_CD=on, it is expected to communicate
with the locally running SUBNET. This is happening in the case of MinIO
via call home functionality. However, the subnet-related functionality inside the
console continues to talk to the SUBNET production URL. Because of this,
the console cannot be tested with a locally running SUBNET.

Set the env variable CONSOLE_SUBNET_URL correctly in such cases. 
(The console already has code to use the value of this variable
as the subnet URL)

cmd/callhome.go

@@ -157,15 +157,11 @@ func performCallhome(ctx context.Context) {
 }
 
 const (
-	healthURL    = "https://subnet.min.io/api/health/upload"
-	healthURLDev = "http://localhost:9000/api/health/upload"
+	subnetHealthPath = "/api/health/upload"
 )
 
 func sendHealthInfo(ctx context.Context, healthInfo madmin.HealthInfo) error {
-	url := healthURL
-	if globalIsCICD {
-		url = healthURLDev
-	}
+	url := globalSubnetConfig.BaseURL + subnetHealthPath
 
 	filename := fmt.Sprintf("health_%s.json.gz", UTCNow().Format("20060102150405"))
 	url += "?filename=" + filename

cmd/config-current.go

@@ -631,7 +631,7 @@ func applyDynamicConfigForSubSys(ctx context.Context, objAPI ObjectLayer, s conf
 		if err != nil {
 			logger.LogIf(ctx, fmt.Errorf("Unable to parse subnet configuration: %w", err))
 		} else {
-			globalSubnetConfig.Update(subnetConfig)
+			globalSubnetConfig.Update(subnetConfig, globalIsCICD)
 			globalSubnetConfig.ApplyEnv() // update environment settings for Console UI
 		}
 	case config.CallhomeSubSys:

cmd/license-update.go

@@ -29,8 +29,7 @@ import (
 
 const (
 	licUpdateCycle = 24 * time.Hour * 30
-	licRenewURL    = "https://subnet.min.io/api/cluster/renew-license"
-	licRenewURLDev = "http://localhost:9000/api/cluster/renew-license"
+	licRenewPath   = "/api/cluster/renew-license"
 )
 
 // initlicenseUpdateJob start the periodic license update job in the background.
@@ -82,10 +81,7 @@ func licenceUpdaterLoop(ctx context.Context, objAPI ObjectLayer) {
 func performLicenseUpdate(ctx context.Context, objectAPI ObjectLayer) {
 	// the subnet license renewal api renews the license only
 	// if required e.g. when it is expiring soon
-	url := licRenewURL
-	if globalIsCICD {
-		url = licRenewURLDev
-	}
+	url := globalSubnetConfig.BaseURL + licRenewPath
 
 	resp, err := globalSubnetConfig.Post(url, nil)
 	if err != nil {

internal/config/subnet/config.go

@@ -29,6 +29,11 @@ import (
 	xnet "github.com/minio/pkg/v2/net"
 )
 
+const (
+	baseURL    = "https://subnet.min.io"
+	baseURLDev = "http://localhost:9000"
+)
+
 // DefaultKVS - default KV config for subnet settings
 var DefaultKVS = config.KVS{
 	config.KV{
@@ -58,6 +63,9 @@ type Config struct {
 
 	// Transport configured with proxy_url if set optionally.
 	transport http.RoundTripper
+
+	// The subnet base URL
+	BaseURL string
 }
 
 var configLock sync.RWMutex
@@ -84,10 +92,11 @@ func (c *Config) ApplyEnv() {
 	if c.Proxy != "" {
 		os.Setenv("CONSOLE_SUBNET_PROXY", c.Proxy)
 	}
+	os.Setenv("CONSOLE_SUBNET_URL", c.BaseURL)
 }
 
 // Update - in-place update with new license and registration information.
-func (c *Config) Update(ncfg Config) {
+func (c *Config) Update(ncfg Config, isDevEnv bool) {
 	configLock.Lock()
 	defer configLock.Unlock()
 
@@ -95,6 +104,14 @@ func (c *Config) Update(ncfg Config) {
 	c.APIKey = ncfg.APIKey
 	c.Proxy = ncfg.Proxy
 	c.transport = ncfg.transport
+	c.BaseURL = baseURL
+
+	if isDevEnv {
+		c.BaseURL = os.Getenv("_MINIO_SUBNET_URL")
+		if c.BaseURL == "" {
+			c.BaseURL = baseURLDev
+		}
+	}
 }
 
 // LookupConfig - lookup config and override with valid environment settings if any.