factor out await.ssh

Signed-off-by: Kiara Grouwstra <kiara@procolix.eu>

deployment/run/tf-proxmox/await-ssh.sh

@@ -0,0 +1,31 @@
+#! /usr/bin/env bash
+set -xeuo pipefail
+declare username host key_file ssh_opts
+readarray -t ssh_opts < <(echo "$ssh_opts" | jq -r '.[]')
+
+sshOpts=(
+  -o BatchMode=yes \
+  -o StrictHostKeyChecking=no \
+  -o ConnectTimeout=5 \
+  -o ServerAliveInterval=5 \
+)
+if [[ -n "${key_file}" ]]; then
+  sshOpts+=(
+    -i "${key_file}"
+  )
+fi
+for ssh_opt in "${ssh_opts[@]}"; do
+  sshOpts+=(
+    -o "${ssh_opt}"
+  )
+done
+
+for i in $(seq 1 30); do
+  if ssh "${sshOpts[@]}" "${username}@${host}" "true"; then
+    exit 0
+  fi
+  echo "Waiting for SSH (attempt #$i)..."
+  sleep 5
+done
+echo "SSH never came up!" >&2
+exit 1

deployment/run/tf-proxmox/main.tf

@@ -182,23 +182,7 @@ resource "null_resource" "wait_for_ssh" {
     proxmox_virtual_environment_vm.nix_vm
   ]
   provisioner "local-exec" {
-    command = <<-EOT
-      for i in $(seq 1 30); do
-        if ssh -vvv \
-        -i "${var.key_file}" \
-        -o BatchMode=yes \
-        -o StrictHostKeyChecking=no \
-        -o ConnectTimeout=1 \
-        -o ServerAliveInterval=1 \
-        root@${proxmox_virtual_environment_vm.nix_vm.ipv4_addresses[1][0]} "true"; then
-          exit 0
-        fi
-        echo "Waiting for SSH (attempt #$i)..."
-        sleep 5
-      done
-      echo "SSH never came up!" >&2
-      exit 1
-    EOT
+    command = "username=root host=${proxmox_virtual_environment_vm.nix_vm.ipv4_addresses[1][0]} key_file=${var.key_file} ssh_opts='${var.ssh_opts}' ./await-ssh.sh"
   }
 }