Download latest binary & Add CODEOWNERS (#6)

* Download latest binary

* Add CODEOWNERS

* Check to enable private DNS in VPC endpoints

.github/CODEOWNERS

@@ -0,0 +1 @@
+*       @gitpod-io/team-engine @gitpod-io/team-enterprise

gitpod-network-check/README.md

@@ -4,9 +4,13 @@ A CLI to check if your network setup is suitable for the installation of Gitpod.
 
 ## Prerequisites
 
-1. Download the `gitpod-network-check` binary using:
+1. Download the latest `gitpod-network-check` binary using:
    ```
-   curl -L "https://github.com/gitpod-io/enterprise-deployment-toolkit/releases/download/v0.1.3/enterprise-deployment-toolkit_$(uname -s -m | awk '{print $1"_"$2}').tar.gz" | tar -xz
+   curl -s https://api.github.com/repos/gitpod-io/enterprise-deployment-toolkit/releases/latest | \
+   grep "browser_download_url.*$(uname -s)_$(uname -m)" | \
+   cut -d : -f 2,3 | \
+   tr -d \" | \
+   xargs curl -L | tar -xz
    ```
 
    You can also download and untar the binary directly from the Github releases page [here](https://github.com/gitpod-io/enterprise-deployment-toolkit/releases/latest)

gitpod-network-check/cmd/checks.go

@@ -176,6 +176,11 @@ func checkSMPrerequisites(ctx context.Context, ec2Client *ec2.Client) error {
 			}
 			log.Infof("ℹ️  VPC endpoint %s is not configured", endpoint.Endpoint)
 		} else {
+			for _, e := range response.VpcEndpoints {
+				if e.PrivateDnsEnabled != nil && !*e.PrivateDnsEnabled {
+					log.Errorf("❌ VPC endpoint '%s' has private DNS disabled, it must be enabled", *e.VpcEndpointId)
+				}
+			}
 			log.Infof("✅ VPC endpoint %s is configured", endpoint.Endpoint)
 		}
 	}