100 lines
3.6 KiB
Bash
100 lines
3.6 KiB
Bash
# Set the VM, image, and networking configuration
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VM_NAME="langflow-dev"
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IMAGE_FAMILY="debian-11"
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IMAGE_PROJECT="debian-cloud"
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BOOT_DISK_SIZE="100GB"
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ZONE="us-central1-a"
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REGION="us-central1"
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VPC_NAME="default"
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SUBNET_NAME="default"
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SUBNET_RANGE="10.128.0.0/20"
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NAT_GATEWAY_NAME="nat-gateway"
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CLOUD_ROUTER_NAME="nat-client"
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# Set the GCP project's compute region
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gcloud config set compute/region $REGION
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# Check if the VPC exists, and create it if not
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vpc_exists=$(gcloud compute networks list --filter="name=$VPC_NAME" --format="value(name)")
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if [[ -z "$vpc_exists" ]]; then
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gcloud compute networks create $VPC_NAME --subnet-mode=custom
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fi
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# Check if the subnet exists, and create it if not
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subnet_exists=$(gcloud compute networks subnets list --filter="name=$SUBNET_NAME AND region=$REGION" --format="value(name)")
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if [[ -z "$subnet_exists" ]]; then
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gcloud compute networks subnets create $SUBNET_NAME --network=$VPC_NAME --region=$REGION --range=$SUBNET_RANGE
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fi
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# Create a firewall rule to allow TCP port 8080 for all instances in the VPC
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firewall_8080_exists=$(gcloud compute firewall-rules list --filter="name=allow-tcp-8080" --format="value(name)")
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if [[ -z "$firewall_8080_exists" ]]; then
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gcloud compute firewall-rules create allow-tcp-8080 --network $VPC_NAME --allow tcp:8080 --source-ranges 0.0.0.0/0 --direction INGRESS
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fi
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# Create a firewall rule to allow IAP traffic
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firewall_iap_exists=$(gcloud compute firewall-rules list --filter="name=allow-iap" --format="value(name)")
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if [[ -z "$firewall_iap_exists" ]]; then
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gcloud compute firewall-rules create allow-iap --network $VPC_NAME --allow tcp:80,tcp:443 --source-ranges 35.235.240.0/20 --direction INGRESS
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fi
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# Create the Cloud Router and NAT Gateway
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cloud_router_exists=$(gcloud compute routers list --filter="name=$CLOUD_ROUTER_NAME" --format="value(name)")
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if [[ -z "$cloud_router_exists" ]]; then
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gcloud compute routers create $CLOUD_ROUTER_NAME --network $VPC_NAME --region $REGION
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fi
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nat_exists=$(gcloud compute routers list --filter="name=$CLOUD_ROUTER_NAME" --format="value(nats.name)")
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if [[ -z "$nat_exists" ]]; then
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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 $REGION
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fi
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# Define the startup script as a multiline Bash here-doc
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STARTUP_SCRIPT=$(cat <<'EOF'
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#!/bin/bash
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# Update and upgrade the system
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apt -y update
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apt -y upgrade
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# Install Python 3 pip, Langflow, and Nginx
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apt -y install python3-pip
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pip install langflow
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apt-get -y install nginx
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# Configure Nginx for Langflow
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touch /etc/nginx/sites-available/langflow-app
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echo "server {
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listen 0.0.0.0:8080;
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location / {
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proxy_pass http://127.0.0.1:7860;
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proxy_set_header Host "\$host";
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proxy_set_header X-Real-IP "\$remote_addr";
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proxy_set_header X-Forwarded-For "\$proxy_add_x_forwarded_for";
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}
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}" >> /etc/nginx/sites-available/langflow-app
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ln -s /etc/nginx/sites-available/langflow-app /etc/nginx/sites-enabled/
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sudo nginx -t
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sudo systemctl restart nginx
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langflow
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EOF
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)
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# Create a temporary file to store the startup script
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tempfile=$(mktemp)
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echo "$STARTUP_SCRIPT" > $tempfile
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# Create the VM instance with the specified configuration and startup script
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gcloud compute instances create $VM_NAME \
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--image-family $IMAGE_FAMILY \
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--image-project $IMAGE_PROJECT \
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--boot-disk-size $BOOT_DISK_SIZE \
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--machine-type=n1-standard-4 \
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--metadata-from-file startup-script=$tempfile \
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--zone $ZONE \
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--network $VPC_NAME \
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--subnet $SUBNET_NAME
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# Remove the temporary file after the VM is created
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rm $tempfile
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