Add steps to provision GCP VM serving langflow

GCP-SETUP.md

@@ -0,0 +1,90 @@
+# Running Langflow from a new GCP project
+## Run the following in your GCP cloudshell:
+
+```bash
+
+VM_NAME="langflow-dev"
+IMAGE_FAMILY="debian-11"
+IMAGE_PROJECT="debian-cloud"
+BOOT_DISK_SIZE="100GB"
+ZONE="us-central1-a"
+REGION="us-central1"
+VPC_NAME="default"
+SUBNET_NAME="default"
+NAT_GATEWAY_NAME="nat-gateway"
+CLOUD_ROUTER_NAME="nat-client"
+
+gcloud config set compute/region $REGION
+
+# Verify the VPC and subnet exist
+vpc_exists=$(gcloud compute networks list --filter="name=$VPC_NAME" --format="value(name)")
+subnet_exists=$(gcloud compute networks subnets list --filter="name=$SUBNET_NAME AND region=$REGION" --format="value(name)")
+
+if [[ -z "$vpc_exists" || -z "$subnet_exists" ]]; then
+  echo "Error: VPC '$VPC_NAME' and/or subnet '$SUBNET_NAME' do not exist in region '$REGION'."
+  exit 1
+fi
+
+# Create the Cloud Router and NAT Gateway
+gcloud compute routers create $CLOUD_ROUTER_NAME \
+  --network $VPC_NAME \
+  --region $REGION
+
+gcloud compute routers nats create $NAT_GATEWAY_NAME \
+  --router $CLOUD_ROUTER_NAME \
+  --auto-allocate-nat-external-ips \
+  --nat-all-subnet-ip-ranges \
+  --enable-logging \
+  --region $REGION
+
+# Define the startup script as a multiline Bash here-doc
+STARTUP_SCRIPT=$(cat <<'EOF'
+#!/bin/bash
+
+apt update
+apt upgrade
+apt install python3-pip
+pip install langflow
+apt-get install nginx
+touch /etc/nginx/sites-available/langflow-app
+echo "server {
+    listen 0.0.0.0:7860;
+
+    location / {
+        proxy_pass http://127.0.0.1:7860;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+    }
+}" >> /etc/nginx/sites-available/langflow-app
+ln -s /etc/nginx/sites-available/my-app /etc/nginx/sites-enabled/
+sudo nginx -t
+sudo systemctl restart nginx
+langflow
+EOF
+)
+
+# Create a temporary file to store the startup script
+tempfile=$(mktemp)
+echo "$STARTUP_SCRIPT" > $tempfile
+
+gcloud compute instances create $VM_NAME \
+  --image-family $IMAGE_FAMILY \
+  --image-project $IMAGE_PROJECT \
+  --boot-disk-size $BOOT_DISK_SIZE \
+  --metadata-from-file startup-script=$tempfile \
+  --zone $ZONE \
+  --network $VPC_NAME \
+  --subnet $SUBNET_NAME
+
+# Remove the temporary file after the VM is created
+rm $tempfile
+
+```
+
+## Connecting to your new Langflow VM
+1. Navigate to the [VM instances](https://console.cloud.google.com/compute/instances) page
+2. Click on the external IP for your VM
+3. Add port 8080 (assuming your VM external IP is 192.168.0.1):
+http://192.168.0.1:8080
+4. You will be greeted by the Langflow Dev environment