adding networking checker

Co-authored-by: Thomas Schubart <[email protected]>

.gitpod.yml

@@ -0,0 +1,4 @@
+image: gitpod/workspace-full
+
+checkoutLocation: enterprise-deployment-toolkit
+workspaceLocation: enterprise-deployment-toolkit/enterprise-deployment-toolkit.code-workspace

enterprise-deployment-toolkit.code-workspace

@@ -0,0 +1,27 @@
+{
+    "folders": [
+        { "path": "." },
+        { "path": "gitpod-network-check" , "name": "gitpod-network-check" },
+    ],
+    "settings": {
+        "[go]": {
+            "editor.formatOnSave": true
+        },
+        "[tf]": {
+            "editor.insertSpaces": true,
+            "editor.tabSize": 2
+        },
+        "go.formatTool": "goimports",
+        "go.useLanguageServer": true,
+        "workspace.supportMultiRootWorkspace": true,
+        "launch": {},
+        "files.exclude": {
+            "**/.git": true
+        },
+        "go.lintTool": "golangci-lint",
+        "gopls": {
+            "allowModfileModifications": true
+        },
+    }
+}
+

gitpod-network-check/README.md

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+# gitpod-network-check
+
+A CLI to check if your network setup is suitable for the installation of Gitpod.
+
+## How to use
+
+1. In order to perform a network check create a config filed called gitpod-network-check.yaml file that needs to be located in the same directory as the gitpod-network-check binary. Alternatively you can use the `--config` option to specify the config file. The config file needs to contain the region and the subnets that you want to use for your Gitpod installation.
+
+```yaml
+log-level: debug # Options: debug, info, warning, error
+region: eu-central-1
+main-subnets: subnet-0554e84f033a64c56, subnet-08584621e7754e505, subnet-094c6fd68aea493b7
+pod-subnets: subnet-028d11dce93b8eefc, subnet-04ec8257d95c434b7,subnet-00a83550ce709f39c
+```
+
+2. Get the AWS credentials of the account where you want to install Gitpod and set them as environment variables
+
+3. Run `gitpod-network-check diagnose`. The expected output should look similar to this.
+
+```
+INFO[0000] ✅ Main Subnets are valid
+INFO[0000] ✅ Pod Subnets are valid
+INFO[0000] ℹ️  Checking prerequisites
+INFO[0000] ✅ VPC endpoint com.amazonaws.eu-central-1.ec2messages is configured
+INFO[0000] ✅ VPC endpoint com.amazonaws.eu-central-1.ssm is configured
+INFO[0000] ✅ VPC endpoint com.amazonaws.eu-central-1.ssmmessages is configured
+INFO[0001] ℹ️  Launching EC2 instance in a Main subnet
+INFO[0007] ℹ️  Launching EC2 instance in a Pod subnet
+INFO[0009] ℹ️  Waiting for EC2 instances to become ready (can take up to 2 minutes)
+INFO[0167] ✅ EC2 Instances are now running successfully
+INFO[0167] ℹ️  Connecting to SSM...
+INFO[0175] ℹ️  Checking if the required AWS Services can be reached from the ec2 instances
+INFO[0178] ✅ Autoscaling is available
+INFO[0179] ✅ CloudFormation is available
+INFO[0179] ✅ CloudWatch is available
+INFO[0180] ✅ EC2 is available
+INFO[0181] ✅ EC2messages is available
+INFO[0182] ✅ ECR is available
+INFO[0183] ✅ ECR Api is available
+INFO[0184] ✅ EKS is available
+INFO[0185] ✅ Elastic LoadBalancing is available
+INFO[0185] ✅ KMS is available
+INFO[0186] ✅ Kinesis Firehose is available
+INFO[0187] ✅ SSM is available
+INFO[0188] ✅ SSMmessages is available
+INFO[0189] ✅ SecretsManager is available
+INFO[0190] ✅ Sts is available
+INFO[0190] ✅ DynamoDB is available
+INFO[0191] ✅ S3 is available
+```