From b9f753fa92971013e38ac6f161d856cac169945c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michael=20H=C3=A4hnel?= <michael.haehnel@netgo.de>
Date: Mon, 20 Mar 2023 13:36:58 +0000
Subject: [PATCH] DEV-720 Recreate feature branch for new playbook

---
 dump-hcloud-ips.yml                           | 96 +++++++++++++++++++
 .../tasks/_read_load_balancer_infos.yml       | 31 ++++++
 2 files changed, 127 insertions(+)
 create mode 100644 dump-hcloud-ips.yml
 create mode 100644 roles/hcloud/tasks/_read_load_balancer_infos.yml

diff --git a/dump-hcloud-ips.yml b/dump-hcloud-ips.yml
new file mode 100644
index 0000000..aadf22b
--- /dev/null
+++ b/dump-hcloud-ips.yml
@@ -0,0 +1,96 @@
+
+---
+
+# This playbook dumps all ip addresses from Hetzner Cloud saving it into local file.
+# A prefix "route" will be added, to easily use it within custom ovpn configuration.
+#
+# Parameters:
+#   playbook inventory
+#     stage := the name of the stage (e.g. dev, int, qa, prod)
+# Example:
+#   STAGE=ext && ansible-playbook dump-hcloud-ips.yml -e "stage=${STAGE}" --vault-password-file=~/.ansible-vault-pass-${STAGE}
+
+#############################################################
+#   Creating inventory dynamically for given parameters     #
+#############################################################
+
+- hosts: localhost
+  connection: local
+  gather_facts: false
+
+  pre_tasks:
+    - name: "Check if ansible version is at least 2.10.x"
+      assert:
+        that:
+          - ansible_version.major >= 2
+          - ansible_version.minor >= 10
+        msg: "The ansible version has to be at least ({{ ansible_version.full }})"
+
+#     Add virtual server to load stage specific variables as context
+    - name: "Add <{{ stage }}-virtual-host-to-read-groups-vars> to hosts"
+      add_host:
+        name: "{{ stage }}-virtual-host-to-read-groups-vars"
+        groups:
+        - "stage_{{ stage }}"
+      changed_when: False
+
+#############################################################
+#   Dumping ip addresses from hcloud with given stage       #
+#############################################################
+
+- hosts: "{{ stage }}-virtual-host-to-read-groups-vars"
+  serial: "{{ serial_number | default(1) }}"
+  gather_facts: false
+  connection: local
+
+  pre_tasks:
+    - name: "Reading current server groups from hetzner"
+      include_role:
+        name: hcloud
+        tasks_from: _read_server_infos
+      with_items: [
+        {
+          name: "all",
+          label_selector: "stage={{ stage }}",
+        }
+      ]
+      loop_control:
+        loop_var: current_server_group
+
+    - name: "Reading info about current loadbalancers from hetzner"
+      include_role:
+        name: hcloud
+        tasks_from: _read_load_balancer_infos
+      with_items: [
+        {
+          name: "all",
+          #label_selector: "stage={{ stage }}", # There are no useful labels at the moment. Todo: Create labels for load balancers like stage=dev
+        }
+      ]
+      loop_control:
+        loop_var: current_load_balancer_group
+
+  tasks:
+    - name: 'Save Hetzner Server ip adresses in ~/hcloud_ip_addresses.txt'
+      blockinfile:
+        marker: "## {mark} managed by ansible (hosts config for {{ stage }}) ##"
+        path: '~/hcloud_ip_addresses.txt'
+        state: present
+        create: yes
+        block: |
+          {% for host in server_group_infos_all %}
+          # {{ host.name }}
+          route {{ host.ip }}
+          {% endfor %}
+
+    - name: 'Save Hetzner loadbalancer ip adresses in ~/hcloud_ip_addresses.txt'
+      blockinfile:
+        marker: "## {mark} managed by ansible (load balancer config for {{ stage }}) ##"
+        path: '~/hcloud_ip_addresses.txt'
+        state: present
+        create: yes
+        block: |
+          {% for host in load_balancer_group_infos_all %}
+          # {{ host.name }}
+          route {{ host.ip }}
+          {% endfor %}
diff --git a/roles/hcloud/tasks/_read_load_balancer_infos.yml b/roles/hcloud/tasks/_read_load_balancer_infos.yml
new file mode 100644
index 0000000..f14c516
--- /dev/null
+++ b/roles/hcloud/tasks/_read_load_balancer_infos.yml
@@ -0,0 +1,31 @@
+---
+
+- name: "Gathering current load_balancer infos from hetzner"
+  hetzner.hcloud.hcloud_load_balancer_info:
+    api_token: "{{ hetzner_authentication_ansible }}"
+    #label_selector: "{{ current_load_balancer_group.label_selector }}"
+  register: current_load_balancer_infos
+  delegate_to: 127.0.0.1
+  become: false
+  tags:
+    - update_config
+
+- name: "Setting loadbalancer group as fact: load_balancer_group_infos_{{ current_load_balancer_group.name }}"
+  set_fact:
+    load_balancer_group_infos_{{ current_load_balancer_group.name }}: "{{ current_load_balancer_infos.hcloud_load_balancer_info | json_query(querystr) }}" # noqa var-naming
+  vars:
+    querystr: "[*].{id: id, name: name, ip: ipv4_address}"
+  delegate_to: 127.0.0.1
+  become: false
+  tags:
+    - update_config
+
+- name: "Printing load_balancer infos {{ current_load_balancer_infos }}"
+  debug:
+    msg: "{{ current_load_balancer_infos }}"
+  delegate_to: 127.0.0.1
+  become: false
+  tags:
+    - update_config
+  when:
+   - debug