feat: Add dynamic participant scaling and improved UX

- Makefile: Add local-vm-test/local-vm-full targets, improve error messages
- README.md: Document dynamic scaling, add troubleshooting section
- flake.nix: Implement dynamic container generation based on PARTICIPANTS env var

This enables running the workshop VM with 1-15 containers instead of fixed 15,
making local development more accessible on resource-constrained machines.
This commit is contained in:
2025-08-14 18:52:04 +02:00
parent c49eb614d5
commit 82780552f0
3 changed files with 563 additions and 470 deletions

View File

@@ -4,67 +4,74 @@ export
.PHONY: help deploy-cloud build-usb flash-usb local-vm-run clean status destroy-cloud opencode lint
DOMAIN := $(or $(WORKSHOP_DOMAIN),codecrispi.es)
PARTICIPANTS := $(or $(WORKSHOP_PARTICIPANTS),3)
PARTICIPANTS := $(or $(PARTICIPANTS),3)
USB_DEVICE := $(or $(USB_DEVICE),/dev/sdX)
help:
@echo "CODE CRISPIES Workshop"
@echo "CODE CRISPIES Workshop Infrastructure"
@echo ""
@echo "Cloud Infrastructure (Hetzner):"
@echo "🌍 Cloud Infrastructure (Hetzner):"
@echo " make deploy-cloud - Deploy 15 VMs to Hetzner Cloud"
@echo " make status-cloud - Check server health"
@echo " make destroy-cloud - Destroy cloud infrastructure"
@echo ""
@echo "USB Boot Drive:"
@echo "💾 USB Boot Drive:"
@echo " make build-usb - Build NixOS workshop ISO"
@echo " make flash-usb - Flash ISO to USB drive"
@echo ""
@echo "Local Development:"
@echo " make local-vm-run - Start local VM with 15 containers"
@echo "🖥️ Local Development:"
@echo " make local-vm-run - Start local VM with containers"
@echo " make local-vm-test - Test with 2 containers only"
@echo " make local-vm-full - Test with all 15 containers"
@echo " make clean - Clean build artifacts"
@echo ""
@echo "Development:"
@echo "⚙️ Development:"
@echo " make opencode - Start opencode in dev shell"
@echo " make lint - Run linting checks"
@echo " make check-vm - Verify VM builds correctly"
@echo ""
@echo "Current Config:"
@echo " Domain: $(DOMAIN)"
@echo " Participants: $(PARTICIPANTS)"
@echo " USB Device: $(USB_DEVICE)"
@echo ""
@echo "Config: Domain=$(DOMAIN), USB=$(USB_DEVICE)"
@echo "Required: HCLOUD_TOKEN, SSH key at ~/.ssh/id_ed25519.pub"
build-usb:
@echo "Building NixOS workshop ISO for $(DOMAIN)..."
@echo "🔨 Building NixOS workshop ISO..."
@if [ ! -f ~/.ssh/id_ed25519.pub ]; then \
echo "SSH key not found at ~/.ssh/id_ed25519.pub"; \
echo "SSH key not found at ~/.ssh/id_ed25519.pub"; \
echo "Generate with: ssh-keygen -t ed25519"; \
exit 1; \
fi
nix build .#live-iso --show-trace
@echo "ISO built: result/iso/nixos.iso"
@echo "Size: $$(du -h result/iso/nixos.iso | cut -f1)"
@echo "ISO built: result/iso/nixos.iso"
@echo "📦 Size: $$(du -h result/iso/nixos.iso | cut -f1)"
flash-usb: build-usb
@if [ "$(USB_DEVICE)" = "/dev/sdX" ]; then \
echo "Set USB_DEVICE=/dev/sdX (find with 'lsblk')"; \
echo "Set USB_DEVICE=/dev/sdX (find with 'lsblk')"; \
exit 1; \
fi
@echo "About to flash $(USB_DEVICE) - THIS WILL ERASE ALL DATA!"
@echo "Verify device: $$(lsblk $(USB_DEVICE) 2>/dev/null || echo 'DEVICE NOT FOUND')"
@echo "⚠️ About to flash $(USB_DEVICE) - THIS WILL ERASE ALL DATA!"
@echo "Device info: $$(lsblk $(USB_DEVICE) 2>/dev/null || echo 'DEVICE NOT FOUND')"
@read -p "Continue? [y/N]: " confirm && [ "$$confirm" = "y" ]
sudo dd if=result/iso/nixos.iso of=$(USB_DEVICE) bs=4M status=progress oflag=sync
sync
@echo "USB drive ready for workshop!"
@echo "USB drive ready for workshop!"
deploy-cloud:
@if [ -z "$(HCLOUD_TOKEN)" ]; then \
echo "HCLOUD_TOKEN not set"; \
echo "HCLOUD_TOKEN not set"; \
echo "Get token from: https://console.hetzner.cloud/"; \
exit 1; \
fi
@if [ ! -f ~/.ssh/id_ed25519.pub ]; then \
echo "SSH key not found at ~/.ssh/id_ed25519.pub"; \
echo "SSH key not found at ~/.ssh/id_ed25519.pub"; \
echo "Generate with: ssh-keygen -t ed25519"; \
exit 1; \
fi
@echo "Deploying 15 workshop servers to Hetzner Cloud..."
@echo "🚀 Deploying 15 workshop servers to Hetzner Cloud..."
@echo "Domain: $(DOMAIN)"
cd terraform && terraform init
cd terraform && terraform apply -auto-approve \
@@ -73,47 +80,62 @@ deploy-cloud:
-var="dns_zone_id=$(DNS_ZONE_ID)" \
-var="domain=$(DOMAIN)" \
-var="ssh_public_key=$$(cat ~/.ssh/id_ed25519.pub)"
@echo "Running health checks..."
@echo "Running health checks..."
@sleep 60
$(MAKE) status-cloud
@echo "Cloud deployment complete!"
@echo "Cloud deployment complete!"
status-cloud:
@echo "Checking server health..."
@echo "🔍 Checking server health..."
@for name in hopper curie lovelace noether hamilton franklin johnson clarke goldberg liskov wing rosen shaw karp rich; do \
printf "%-10s " "$$name:"; \
if timeout 10 curl -s -f https://traefik.$$name.$(DOMAIN)/ping >/dev/null 2>&1; then \
echo "Ready"; \
echo "Ready"; \
elif timeout 5 ssh -o ConnectTimeout=5 -o StrictHostKeyChecking=no workshop@$$name.$(DOMAIN) "echo ok" >/dev/null 2>&1; then \
echo "SSH OK, Traefik starting..."; \
echo "SSH OK, Traefik starting..."; \
else \
echo "Not ready"; \
echo "Not ready"; \
fi; \
done
destroy-cloud:
@echo "This will destroy ALL workshop servers!"
@echo "⚠️ This will destroy ALL workshop servers!"
@read -p "Continue? [y/N]: " confirm && [ "$$confirm" = "y" ]
cd terraform && terraform destroy -auto-approve
@echo "✅ Cloud infrastructure destroyed"
local-vm-run:
@echo "Starting local workshop VM with $(PARTICIPANTS) containers..."
@echo "🖥️ Starting local workshop VM with $(PARTICIPANTS) containers..."
@echo "VM will open with desktop showing all participant containers"
nix run --impure .#local-vm
PARTICIPANTS=$(PARTICIPANTS) nix run --impure .#local-vm
local-vm-test:
@echo "🧪 Testing with 2 containers only..."
PARTICIPANTS=2 nix run --impure .#local-vm
local-vm-full:
@echo "🚀 Testing with all 15 containers (heavy resource usage!)..."
PARTICIPANTS=15 nix run --impure .#local-vm
check-vm:
@echo "✅ Verifying VM builds correctly..."
PARTICIPANTS=2 nix build --impure .#local-vm
@echo "✅ VM build successful"
clean:
rm -rf result .direnv terraform/.terraform terraform/terraform.tfstate*
@echo "Cleaned up build artifacts"
@echo "🧹 Cleaned up build artifacts"
opencode:
@echo "Starting opencode in Nix dev shell..."
@echo "💻 Starting opencode in Nix dev shell..."
nix develop --command opencode
lint:
@echo "Linting Markdown files..."
@echo "🔍 Linting project files..."
@echo "Markdown files..."
@markdownlint-cli . || true
@echo "Linting JSON files..."
@echo "JSON files..."
@find . -type f -name "*.json" -print0 | xargs -0 -I {} bash -c 'jq . "{}" >/dev/null || (echo "JSON lint error in {}" && exit 1)'
@echo "Linting Nix files..."
@nixpkgs-fmt . || true
@echo "Linting complete."
@echo "Nix files..."
@nixpkgs-fmt --check . || true
@echo "Linting complete"