init dump

iac/src/js/core.js

@@ -0,0 +1,143 @@
+const pulumi = require("@pulumi/pulumi");
+const hcloud = require("@pulumi/hcloud");
+const command = require("@pulumi/command/remote");
+const k8s = require("@pulumi/kubernetes");
+const local = require("@pulumi/command/local");
+const fs = require("fs");
+
+
+exports.createCluster = function() {
+    const config = new pulumi.Config();
+    const sshKeyName = config.require("sshKeyName");
+    const privateKey = config.requireSecret("privateKeySsh");
+
+    const installMasterScript = (publicIp) => `
+        # Install k3s if it's not already present.
+        if ! command -v k3s >/dev/null; then
+          curl -sfL https://get.k3s.io | INSTALL_K3S_EXEC="--flannel-backend=wireguard-native --node-external-ip=${publicIp}" sh -
+        fi
+        # Wait until the kubeconfig is readable and a kubectl command succeeds.
+        until sudo k3s kubectl get node > /dev/null 2>&1; do
+            echo "Waiting for master node to be ready..."
+            sleep 5
+        done
+    `;
+
+    const installWorkerScript = (masterIp, token) => `#!/bin/bash
+# Redirect all output (stdout and stderr) to a log file for debugging.
+exec > /root/k3s-install.log 2>&1
+
+set -x # Echo every command being executed to the log file.
+
+echo "--- Starting k3s worker installation script at $(date) ---"
+
+# Add a loop to wait for network connectivity to the master node.
+until ping -c1 ${masterIp}; do
+    echo "Waiting for network connectivity to master..."
+    sleep 2
+done
+
+echo "Network is up. Discovering this node's public IP..."
+# Use an external service to find the public IP address of this server.
+WORKER_PUBLIC_IP=$(curl -s https://ifconfig.me/ip)
+# The dollar sign is escaped (\$) so it's interpreted by the remote shell.
+echo "Discovered public IP: \${WORKER_PUBLIC_IP}"
+
+echo "Proceeding with k3s agent installation."
+
+if ! command -v k3s >/dev/null; then
+  echo "k3s not found, attempting installation..."
+  # Pass the discovered public IP to the k3s installer.
+  # The dollar sign for WORKER_PUBLIC_IP is escaped (\$) so that it's interpreted
+  # by the bash script on the remote server, not by the local Node.js process.
+  curl -sfL https://get.k3s.io | K3S_URL=https://${masterIp}:6443 K3S_TOKEN="${token}" INSTALL_K3S_EXEC="--node-external-ip=\${WORKER_PUBLIC_IP}" sh -
+  echo "k3s installation script finished with exit code $?."
+else
+  echo "k3s is already installed."
+fi
+
+echo "--- Finished k3s worker installation script at $(date) ---"
+`;
+
+
+    const firewall = new hcloud.Firewall("k3s-firewall", {
+        rules: [
+            { direction: "in", protocol: "tcp", port: "22", sourceIps: ["0.0.0.0/0", "::/0"] },
+            { direction: "in", protocol: "tcp", port: "6443", sourceIps: ["0.0.0.0/0", "::/0"] },
+            { direction: "in", protocol: "udp", port: "51820", sourceIps: ["0.0.0.0/0", "::/0"] },
+            { direction: "in", protocol: "icmp", sourceIps: ["0.0.0.0/0", "::/0"] },
+        ],
+    });
+
+
+    const master = new hcloud.Server("k3s-master-de", {
+        serverType: "cx22",
+        image: "ubuntu-22.04",
+        location: "fsn1",
+        sshKeys: [sshKeyName],
+        firewallIds: [firewall.id],
+    });
+
+    const masterConnection = {
+        host: master.ipv4Address,
+        user: "root",
+        privateKey: privateKey,
+    };
+
+    const installMaster = new command.Command("install-master", {
+        connection: masterConnection,
+        create: master.ipv4Address.apply(installMasterScript),
+    }, { dependsOn: [master] });
+
+    const tokenCmd = new command.Command("get-token", {
+        connection: masterConnection,
+        create: "sudo cat /var/lib/rancher/k3s/server/node-token",
+    }, { dependsOn: [installMaster] });
+
+    const workerScript = pulumi.all([master.ipv4Address, tokenCmd.stdout]).apply(([ip, token]) =>
+        installWorkerScript(ip, token.trim())
+    );
+
+    const workerDe = new hcloud.Server("k3s-worker-de", {
+        serverType: "cx22",
+        image: "ubuntu-22.04",
+        location: "fsn1",
+        sshKeys: [sshKeyName],
+        userData: workerScript,
+        firewallIds: [firewall.id],
+    });
+
+    const workerUs = new hcloud.Server("k3s-worker-us", {
+        serverType: "cpx11",
+        image: "ubuntu-22.04",
+        location: "ash",
+        sshKeys: [sshKeyName],
+        userData: workerScript,
+        firewallIds: [firewall.id],
+    });
+
+    const kubeconfigCmd = new command.Command("get-kubeconfig", {
+        connection: masterConnection,
+        create: master.ipv4Address.apply(ip =>
+            `sudo sed 's/127.0.0.1/${ip}/' /etc/rancher/k3s/k3s.yaml`
+        ),
+    }, { dependsOn: [installMaster] });
+
+      const labelNodeCmd = new local.Command("label-german-node", {
+
+        create: pulumi.all([kubeconfigCmd.stdout, workerDe.name]).apply(([kubeconfig, workerName]) => {
+
+            const tempKubeconfigFile = "./kubeconfig.yaml";
+            fs.writeFileSync(tempKubeconfigFile, kubeconfig);
+            
+            return `kubectl --kubeconfig=${tempKubeconfigFile} label node ${workerName} location=de --overwrite`;
+        }),
+    }, { dependsOn: [kubeconfigCmd] });
+
+    return {
+        masterIp: master.ipv4Address,
+        workerDeIp: workerDe.ipv4Address,
+        workerUsIp: workerUs.ipv4Address,
+        kubeconfig: pulumi.secret(kubeconfigCmd.stdout),
+    };
+}