Introduce forward-ssh.sh method & reorganize

- Abandoned update-hosts.sh in favor of loopback SSH forwarding
- Adopted *.local.krislamo.org as a wildcard loopback domain
- Bound Traefik to ports 443/80 on Dockerbox dev
- Removed outdated Gitea config from Dockerbox
- Relocated production playbooks to a new directory

forward-ssh.sh

@@ -0,0 +1,80 @@
+#!/bin/bash
+
+# Finds the SSH private key under ./.vagrant and connects to
+# the Vagrant box, port forwarding localhost ports: 8443, 80, 443
+
+# Root check
+if [ "$EUID" -ne 0 ]; then
+  echo "[ERROR]: Please run script as root"
+  exit 1
+fi
+
+# Clean environment
+unset PRIVATE_KEY
+unset HOST_IP
+unset MATCH_PATTERN
+unset PKILL_ANSWER
+
+# Function to create the SSH tunnel
+function ssh_connect {
+  printf "[INFO]: Starting new vagrant SSH tunnel on PID "
+  sudo -u "$USER" ssh -fNT -i "$PRIVATE_KEY" \
+    -L 8443:localhost:8443 \
+    -L 80:localhost:80 \
+    -L 443:localhost:443 \
+    -o UserKnownHostsFile=/dev/null \
+    -o StrictHostKeyChecking=no \
+      vagrant@"$HOST_IP" 2>/dev/null
+  sleep 2
+  pgrep -f "$MATCH_PATTERN"
+}
+
+# Check for valid PRIVATE_KEY location
+PRIVATE_KEY="$(find .vagrant -name "private_key" 2>/dev/null)"
+if ! ssh-keygen -l -f "$PRIVATE_KEY" &>/dev/null; then
+  echo "[ERROR]: The SSH key '$PRIVATE_KEY' is not valid. Is your virtual machine running?"
+  exit 1
+fi
+echo "[CHECK]: Valid key at $PRIVATE_KEY"
+
+# Grab first IP or use whatever HOST_IP_FIELD is set to and check that the guest is up
+HOST_IP="$(vagrant ssh -c "hostname -I | cut -d' ' -f${HOST_IP_FIELD:-1}" 2>/dev/null)"
+HOST_IP="${HOST_IP::-1}" # trim
+if ! ping -c 1 "$HOST_IP" &>/dev/null; then
+  echo "[ERROR]: Cannot ping the host IP '$HOST_IP'"
+  exit 1
+fi
+echo "[CHECK]: Host at $HOST_IP is up"
+
+# Pattern for matching processes running
+MATCH_PATTERN="ssh -fNT -i ${PRIVATE_KEY}.*vagrant@"
+
+# Check amount of processes that match the pattern
+if [ "$(pgrep -afc "$MATCH_PATTERN")" -eq 0 ]; then
+  ssh_connect
+else
+  # Processes found, so prompt to kill remaining ones then start tunnel
+  printf "\n[WARNING]: Found processes running:\n"
+  pgrep -fa "$MATCH_PATTERN"
+  printf '\n'
+  read -rp "Would you like to kill these processes? [y/N] " PKILL_ANSWER
+  echo
+  case "$PKILL_ANSWER" in
+    [yY])
+      echo "[WARNING]: Killing old vagrant SSH tunnel(s): "
+      pgrep -f "$MATCH_PATTERN" | tee >(xargs kill -15)
+      echo
+      if [ "$(pgrep -afc "$MATCH_PATTERN")" -eq 0 ]; then
+        ssh_connect
+      else
+        echo "[ERROR]: Unable to kill processes:"
+        pgrep -f "$MATCH_PATTERN"
+        exit 1
+      fi
+      ;;
+    *)
+      echo "[INFO]: Declined to kill existing processes"
+      exit 0
+      ;;
+  esac
+fi