main.tf.example

############## Variables ###############
# Define Hetzner provider
provider "hcloud" {
  token = "<hetzner_cloud_token_goes_here>"
}

# Obtain ssh key data
data "hcloud_ssh_key" "ssh_key" {
  fingerprint = "<ssh_key_goes_here>"
}

# Create Debian 10 server
resource "hcloud_server" "server-1" {
  name = "server-1"
  image = "debian-10"
  server_type = "cx11"
  ssh_keys  = ["${data.hcloud_ssh_key.ssh_key.id}"]

  connection {
    host = "${hcloud_server.server-1.ipv4_address}"
    type = "ssh"
    user = "root"
    private_key = "${file("~/.ssh/id_rsa")}"
  }

  provisioner "remote-exec" {
    inline = ["# Connected!"]
  }

  provisioner "local-exec" {
    command = "k3sup install --ip ${hcloud_server.server-1.ipv4_address} && mv kubeconfig ~/.kube/config"
  }

  provisioner "local-exec" {
    command = "kubectl create ns apps"
  }

  provisioner "local-exec" {
    command = "kubectl create secret generic wisdom-service-secret -n apps --from-env-file=secret.env"
  }

  provisioner "local-exec" {
    command = "kubectl create ns flux"
  }

  provisioner "local-exec" {
    command = "fluxctl install --git-user=mejlholm --git-email=mejlholm@users.noreply.github.com --git-url=git@github.com:Cloud-Native-Aalborg/Meetup-2 --git-paths=k8s,wisdom-frontend/deploy,wisdom-service/deploy --namespace=flux | kubectl apply -f - "
  }

  provisioner "local-exec" {
    command = "kubectl patch deployments -n flux flux --type='json' -p='[{\"op\": \"add\", \"path\": \"/spec/template/spec/containers/0/args/-\", \"value\": \"--git-ci-skip\"}]'"
  }

  provisioner "local-exec" {
    command = "linkerd install | kubectl apply -f -"
  }
}

# Create Debian 10 server
resource "hcloud_server" "server-2" {
  name = "server-2"
  image = "debian-10"
  server_type = "cx11"
  ssh_keys  = ["${data.hcloud_ssh_key.ssh_key.id}"]

  connection {
    host = "${hcloud_server.server-2.ipv4_address}"
    type = "ssh"
    user = "root"
    private_key = "${file("~/.ssh/id_rsa")}"
  }

  provisioner "remote-exec" {
    inline = ["# Connected!"]
  }

  provisioner "local-exec" {
    command = "k3sup join --ip ${hcloud_server.server-2.ipv4_address} --server-ip ${hcloud_server.server-1.ipv4_address}"
  }
}

# Create Debian 10 server
resource "hcloud_server" "server-3" {
  name = "server-3"
  image = "debian-10"
  server_type = "cx11"
  ssh_keys  = ["${data.hcloud_ssh_key.ssh_key.id}"]

  connection {
    host = "${hcloud_server.server-3.ipv4_address}"
    type = "ssh"
    user = "root"
    private_key = "${file("~/.ssh/id_rsa")}"
  }

  provisioner "remote-exec" {
    inline = ["# Connected!"]
  }

  provisioner "local-exec" {
    command = "k3sup join --ip ${hcloud_server.server-3.ipv4_address} --server-ip ${hcloud_server.server-1.ipv4_address}"
  }
}

# Output server IPs
output "server_ip_server-1" {
  value = "${hcloud_server.server-1.ipv4_address}"
}

# Output server IPs
output "server_ip_server-2" {
  value = "${hcloud_server.server-2.ipv4_address}"
}

# Output server IPs
output "server_ip_server-3" {
  value = "${hcloud_server.server-3.ipv4_address}"
}

output "fluxcmd" {
  value = "fluxctl identity --k8s-fwd-ns flux"
}