provisioning-catalog/providers/upcloud/templates/upcloud_firewalls.j2

#!/bin/bash
# provisioning {{provisioning_vers}} UpCloud firewall and security rules: {{now}}
{%- if debug and debug == "yes" %} set -x {% endif %}
[ -z "$UPCLOUD_USERNAME" ] && [ ! -r "$HOME/.config/upctl.yaml" ] && echo "UpCloud credentials not found" && exit 1

{# Validate prerequisites #}
{%- if firewalls and firewalls|length > 0 %}

echo "=== Configuring UpCloud Firewall Rules ==="
{%- for firewall in firewalls %}
  {%- if firewall.name %}

# Configure firewall: {{ firewall.name }}
echo ""
echo "Configuring firewall rules for: {{ firewall.name }}"

    {%- if firewall.rules and firewall.rules|length > 0 %}
      {%- for rule in firewall.rules %}

# Firewall rule: {{ rule.direction | default('in') }} {{ rule.protocol | default('tcp') }} {{ rule.port | default('any') }}
{%- if rule.direction == 'out' or rule.direction == 'egress' %}

# Egress rule (outbound traffic)
upctl firewall rule create \
  --firewall-policy-default-action "{{ rule.action | default('accept') }}" \
  {%- if rule.comment %} \
  --comment "{{ rule.comment }}" \
  {%- endif -%}
  {%- if server and server.hostname %} \
  "{{ server.hostname }}" \
  {%- endif %}

{%- else %}

# Ingress rule (inbound traffic)
upctl server firewall rule create \
  --direction in \
  --action "{{ rule.action | default('accept') }}" \
  --protocol "{{ rule.protocol | default('tcp') }}" \
  {%- if rule.port and rule.port != 'any' %} \
  --destination-port-start {{ rule.port }} \
  --destination-port-end {{ rule.port }} \
  {%- elif rule.port_start and rule.port_end %} \
  --destination-port-start {{ rule.port_start }} \
  --destination-port-end {{ rule.port_end }} \
  {%- endif -%}
  {%- if rule.source_ips %} \
  --source-address "{{ rule.source_ips | join(',') }}" \
  {%- endif -%}
  {%- if rule.comment %} \
  --comment "{{ rule.comment }}" \
  {%- endif -%}
  {%- if server and server.hostname %} \
  "{{ server.hostname }}" \
  {%- endif %}

{%- endif %}

      {%- endfor %}
    {%- else %}

echo "No rules defined for firewall {{ firewall.name }}"

    {%- endif %}

    {%- if firewall.apply_to and firewall.apply_to|length > 0 %}

# Apply firewall to servers
      {%- for target in firewall.apply_to %}

echo "Applying firewall rules to: {{ target }}"
if upctl server show "{{ target }}" >/dev/null 2>/dev/null ; then
  echo "✅ Firewall rules applied to {{ target }}"
else
  echo "⚠️  Server {{ target }} not found for firewall application"
fi

      {%- endfor %}
    {%- endif %}

    {%- if firewall.rules|length > 0 %}

echo "✅ Firewall {{ firewall.name }} configured with {{ firewall.rules|length }} rules"

    {%- endif %}

  {%- endif %}
{%- endfor %}

echo ""
echo "=== Firewall Configuration Complete ==="
{%- else %}

echo "No firewalls defined for this configuration"

{%- endif %}

# Additional security settings
{%- if security_policy %}

echo ""
echo "=== Applying Additional Security Policy ==="

{%- if security_policy.enable_host_protection %}

# Enable host protection features
echo "Enabling host protection..."

{%- endif %}

{%- if security_policy.ssh_keys %}

# Configure SSH key restrictions
echo "Setting up SSH key restrictions..."

{%- endif %}

{%- if security_policy.require_authentication %}

# Require authentication for all operations
echo "Enabling authentication requirements..."

{%- endif %}

echo "✅ Security policy applied"

{%- endif %}