From e457a51b253f5bd6f52a0ca50ab7ded832163e88 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nicolas=20Mass=C3=A9?= <nicolas.masse@itix.fr>
Date: Wed, 27 Jun 2018 08:53:37 +0200
Subject: [PATCH] initial commit

---
 .gitignore                         |  1 +
 select-filter-and-search-test.yaml | 31 ++++++++++++++++
 variable-order.yaml                | 57 ++++++++++++++++++++++++++++++
 3 files changed, 89 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 select-filter-and-search-test.yaml
 create mode 100644 variable-order.yaml

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a8b42eb
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+*.retry
diff --git a/select-filter-and-search-test.yaml b/select-filter-and-search-test.yaml
new file mode 100644
index 0000000..b2d2e8d
--- /dev/null
+++ b/select-filter-and-search-test.yaml
@@ -0,0 +1,31 @@
+---
+
+- name: Uses the "select" filter and the "search" test to filter a list
+  gather_facts: no
+  hosts: localhost
+  vars: 
+    input:
+    # This is a sample output of the "getent ahosts openshift39.openshift.test" command
+    # 
+    # - command: openshift39.openshift.test
+    #   register: getent
+    #
+    # => this is getent.stdout_lines
+    #
+    - 192.168.23.175  STREAM openshift39.openshift.test
+    - 192.168.23.175  DGRAM
+    - 192.168.23.175  RAW
+    - 192.168.23.176  STREAM 
+    - 192.168.23.176  DGRAM  
+    - 192.168.23.176  RAW   
+  tasks:
+  - block:
+    - debug:
+        var: output
+    - assert:
+        that:
+        - output|length == 2
+        - output|first == "192.168.23.175"
+        - output|last == "192.168.23.176"
+    vars:
+      output: '{{ input|select(''search'', ''\bSTREAM\b'')|map(''regex_replace'', ''^(\S+)\s+STREAM\b.*$'', ''\1'')|list }}'
diff --git a/variable-order.yaml b/variable-order.yaml
new file mode 100644
index 0000000..d9f9a14
--- /dev/null
+++ b/variable-order.yaml
@@ -0,0 +1,57 @@
+---
+
+- name: Show how ansible defer variable evaluation to the last moment
+  gather_facts: no
+  hosts: localhost
+  tasks:
+  - name: Shows usage of interdependant variables
+    block:
+    - debug:
+        msg: '{{ abcd }}'
+    - name: Unit tests
+      assert:
+        that:
+        - abcd == "aadd"
+    vars:
+      a: "a"
+      b: '{{ a }}'
+      ab: '{{ a }}{{ b }}'
+      abcd: '{{ ab }}{{ cd }}'
+      cd: '{{ c }}{{ d }}'
+      c: '{{ d }}'
+      d: "d"
+  
+  - name: Create a temporary directory
+    tempfile: 
+      state: directory
+    register: tempfile
+
+  - name: Shows that variables are evaluated when used and not when assigned
+    block:
+    - name: Nope, the file does not exists...
+      set_fact:
+        test_output1: '{{ test_variable }}'
+      register: task1
+      ignore_errors: true
+
+    - name: Create the file
+      file:
+        path: '{{ test_file }}'
+        state: touch
+
+    - name: Now, it should be fine...
+      set_fact:
+        test_output2: '{{ test_variable }}'
+      register: task2
+      ignore_errors: true
+
+    - name: Unit tests
+      assert:
+        that:
+        - task1 is failed
+        - task2 is not failed
+        - test_output1 is not defined
+        - test_output2 is defined
+    vars:
+      test_file: '{{ tempfile.path }}/i-am-here'
+      test_variable: '{{ lookup(''file'', test_file) }}'