Add a role to generate a static inventory (#540)

* Add the static-inventory role that configures the inventory/hosts
  file by the given path, or creates it for you.

Signed-off-by: Bogdan Dobrelya <bdobreli@redhat.com>

3 files changed, 70 insertions, 0 deletions

diff --git a/roles/static_inventory/tasks/checkpoint.yml b/roles/static_inventory/tasks/checkpoint.yml
new file mode 100644
index 000000000..c0365bd3d
--- /dev/null
+++ b/roles/static_inventory/tasks/checkpoint.yml
@@ -0,0 +1,17 @@
+---
+- name: check for static inventory dir
+  stat:
+    path: "{{ inventory_path }}"
+  register: stat_inventory_path
+
+- name: create static inventory dir
+  file:
+    path: "{{ inventory_path }}"
+    state: directory
+    mode: 0750
+  when: not stat_inventory_path.stat.exists
+
+- name: create inventory from template
+  template:
+    src: inventory.j2
+    dest: "{{ inventory_path }}/hosts"
diff --git a/roles/static_inventory/tasks/main.yml b/roles/static_inventory/tasks/main.yml
new file mode 100644
index 000000000..15c81690e
--- /dev/null
+++ b/roles/static_inventory/tasks/main.yml
@@ -0,0 +1,6 @@
+---
+- name: Generate in-memory inventory
+  include: openstack.yml
+
+- name: Checkpoint in-memory data into a static inventory
+  include: checkpoint.yml
diff --git a/roles/static_inventory/tasks/openstack.yml b/roles/static_inventory/tasks/openstack.yml
new file mode 100644
index 000000000..a25502835
--- /dev/null
+++ b/roles/static_inventory/tasks/openstack.yml
@@ -0,0 +1,47 @@
+---
+- no_log: true
+  block:
+    - name: fetch all nodes from openstack shade dynamic inventory
+      command: shade-inventory --list
+      register: registered_nodes_output
+      when: refresh_inventory|bool
+
+    - name: set fact for openstack inventory cluster nodes
+      set_fact:
+        registered_nodes: "{{ (registered_nodes_output.stdout | from_json) | json_query(q) }}"
+      vars:
+        q: "[] | [?metadata.clusterid=='{{stack_name}}']"
+      when:
+        - refresh_inventory|bool
+
+    - name: set_fact for openstack inventory nodes
+      set_fact:
+        registered_nodes_floating: "{{ (registered_nodes_output.stdout | from_json) | json_query(q2) }}"
+      vars:
+        q: "[] | [?metadata.group=='infra.{{stack_name}}']"
+        q2: "[] | [?metadata.clusterid=='{{stack_name}}'] | [?public_v4!='']"
+      when:
+        - refresh_inventory|bool
+
+    - name: Add cluster nodes w/o floating IPs to inventory
+      with_items: "{{ registered_nodes }}"
+      when: not item in registered_nodes_floating
+      add_host:
+        name: '{{ item.name }}'
+        groups: '{{ item.metadata.group }}'
+        ansible_host: '{{ item.private_v4 }}'
+        ansible_fqdn: '{{ item.name }}'
+        ansible_private_key_file: '{{ private_ssh_key }}'
+        private_v4: '{{ item.private_v4 }}'
+
+    - name: Add cluster nodes with floating IPs to inventory
+      with_items: "{{ registered_nodes_floating }}"
+      when: item in registered_nodes_floating
+      add_host:
+        name: '{{ item.name }}'
+        groups: '{{ item.metadata.group }}'
+        ansible_host: '{{ item.public_v4 }}'
+        ansible_fqdn: '{{ item.name }}'
+        ansible_private_key_file: '{{ private_ssh_key }}'
+        private_v4: '{{ item.private_v4 }}'
+        public_v4: '{{ item.public_v4 }}'