Initial commit

[ta/infra-ansible.git] / roles / bootstrap-host / tasks / prepare_loopback_swap.yml

diff --git a/roles/bootstrap-host/tasks/prepare_loopback_swap.yml b/roles/bootstrap-host/tasks/prepare_loopback_swap.yml
new file mode 100644 (file)
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+++ b/roles/bootstrap-host/tasks/prepare_loopback_swap.yml
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+---
+# Copyright 2015, Rackspace US, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+- block:
+    - name: Check if swap is already enabled
+      command: grep /openstack/swap.img /proc/swaps
+
+  rescue:
+    - name: Create swap file
+      command: "{{ swap_create_command }}"
+      args:
+        creates: /openstack/swap.img
+      register: swap_create
+      tags:
+        - swap-file-create
+
+    - name: Set swap file permissions to 0600
+      file:
+        path: /openstack/swap.img
+        mode: 0600
+      tags:
+        - swap-permissions
+
+    - name: Format the swap file
+      command: mkswap /openstack/swap.img
+      when: swap_create | changed
+      tags:
+        - swap-format
+
+    - name: Ensure that the swap file entry is in /etc/fstab
+      mount:
+        name: none
+        src: /openstack/swap.img
+        fstype: swap
+        opts: sw
+        passno: 0
+        dump: 0
+        state: present
+      tags:
+        - swap-fstab
+
+    - name: Bring swap file online
+      command: swapon /openstack/swap.img
+      tags:
+        - swap-online
+
+- name: Set system swappiness
+  sysctl:
+    name: vm.swappiness
+    value: 10
+    state: present
+  tags:
+    - swap-sysctl