From 677fd46cf37cab5f995170b3567939d784ebb07a Mon Sep 17 00:00:00 2001
From: Bogdan Dobrelya <bdobreli@redhat.com>
Date: Wed, 5 Jul 2017 12:46:57 +0200
Subject: Add bastion and ssh config for the static inventory role

* Autogenerate SSH config for static inventory and bastion.
* When using bastion, use FQDN for inventory's ansible_host and SSH
  config's Hostname. Simplifies accessing nodes by names instead of
  private IPs.

Signed-off-by: Bogdan Dobrelya <bdobreli@redhat.com>
---
 roles/static_inventory/tasks/main.yml      |  4 ++++
 roles/static_inventory/tasks/openstack.yml | 25 +++++++++++++++++++++++--
 roles/static_inventory/tasks/sshconfig.yml | 13 +++++++++++++
 3 files changed, 40 insertions(+), 2 deletions(-)
 create mode 100644 roles/static_inventory/tasks/sshconfig.yml

(limited to 'roles/static_inventory/tasks')

diff --git a/roles/static_inventory/tasks/main.yml b/roles/static_inventory/tasks/main.yml
index 15c81690e..b58866017 100644
--- a/roles/static_inventory/tasks/main.yml
+++ b/roles/static_inventory/tasks/main.yml
@@ -4,3 +4,7 @@
 
 - name: Checkpoint in-memory data into a static inventory
   include: checkpoint.yml
+
+- name: Generate SSH config for accessing hosts via bastion
+  include: sshconfig.yml
+  when: use_bastion|bool
diff --git a/roles/static_inventory/tasks/openstack.yml b/roles/static_inventory/tasks/openstack.yml
index a25502835..95d0d172f 100644
--- a/roles/static_inventory/tasks/openstack.yml
+++ b/roles/static_inventory/tasks/openstack.yml
@@ -16,12 +16,14 @@
 
     - name: set_fact for openstack inventory nodes
       set_fact:
+        registered_bastion_nodes: "{{ (registered_nodes_output.stdout | from_json) | json_query(q) }}"
         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
+        - use_bastion|bool
 
     - name: Add cluster nodes w/o floating IPs to inventory
       with_items: "{{ registered_nodes }}"
@@ -29,9 +31,11 @@
       add_host:
         name: '{{ item.name }}'
         groups: '{{ item.metadata.group }}'
-        ansible_host: '{{ item.private_v4 }}'
+        ansible_host: "{% if use_bastion|bool %}{{ item.name }}{% else %}{{ item.private_v4 }}{% endif %}"
         ansible_fqdn: '{{ item.name }}'
+        ansible_user: '{{ ssh_user }}'
         ansible_private_key_file: '{{ private_ssh_key }}'
+        ansible_ssh_extra_args: '-F {{ ssh_config_path }}'
         private_v4: '{{ item.private_v4 }}'
 
     - name: Add cluster nodes with floating IPs to inventory
@@ -40,8 +44,25 @@
       add_host:
         name: '{{ item.name }}'
         groups: '{{ item.metadata.group }}'
-        ansible_host: '{{ item.public_v4 }}'
+        ansible_host: "{% if use_bastion|bool %}{{ item.name }}{% else %}{{ item.private_v4 }}{% endif %}"
         ansible_fqdn: '{{ item.name }}'
+        ansible_user: '{{ ssh_user }}'
         ansible_private_key_file: '{{ private_ssh_key }}'
+        ansible_ssh_extra_args: '-F {{ ssh_config_path }}'
         private_v4: '{{ item.private_v4 }}'
         public_v4: '{{ item.public_v4 }}'
+
+    - name: Add bastion node to inventory
+      add_host:
+        name: bastion
+        groups: bastions
+        ansible_host: '{{ registered_bastion_nodes[0].public_v4 }}'
+        ansible_fqdn: '{{ registered_bastion_nodes[0].name }}'
+        ansible_user: '{{ ssh_user }}'
+        ansible_private_key_file: '{{ private_ssh_key }}'
+        ansible_ssh_extra_args: '-F {{ ssh_config_path }}'
+        private_v4: '{{ registered_bastion_nodes[0].private_v4 }}'
+        public_v4: '{{ registered_bastion_nodes[0].public_v4 }}'
+      when:
+        - registered_bastion_nodes is defined
+        - use_bastion|bool
diff --git a/roles/static_inventory/tasks/sshconfig.yml b/roles/static_inventory/tasks/sshconfig.yml
new file mode 100644
index 000000000..7119fe6ff
--- /dev/null
+++ b/roles/static_inventory/tasks/sshconfig.yml
@@ -0,0 +1,13 @@
+---
+- name: set ssh proxy command prefix for accessing nodes via bastion
+  set_fact:
+    ssh_proxy_command: >-
+      ssh {{ ssh_options }}
+      -i {{ private_ssh_key }}
+      {{ ssh_user }}@{{ hostvars['bastion'].ansible_host }}
+
+- name: regenerate ssh config
+  template:
+    src: openstack_ssh_config.j2
+    dest: "{{ ssh_config_path }}"
+    mode: 0644
-- 
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