Fix integration test error on ansible devel branch

- Remove centos6 platforms for integration tests on
  the ansible devel branch from the azure-pipelines.
- Add delegate_to to each task of integration test for
  synchronized module on devel branch
- Modify invalid parameter test to use key instead of name
  for sysctl module
- Replace lookup plugin to slurp module in integration tests
  for selinux module
- Add creating working directory task in integration tests
  for acl module

Signed-off-by: Hideki Saito <saito@fgrep.org>

tests/integration/targets/synchronize/tasks/main.yml

@@ -2,16 +2,29 @@
   package:
     name: rsync
   when: ansible_distribution != "MacOSX"
-- name: cleanup old files
-  shell: rm -rf {{output_dir}}/*
+- name: Clean up the working directory and files
+  file:
+    path: '{{ output_dir }}'
+    state: absent
+- name: Create the working directory
+  file:
+    path: '{{ output_dir }}'
+    state: directory
 - name: create test new files
-  copy: dest={{output_dir}}/{{item}} mode=0644 content="hello world"
+  copy:
+    dest: '{{output_dir}}/{{item}}'
+    mode: '0644'
+    content: 'hello world'
   with_items:
   - foo.txt
   - bar.txt
+
 - name: synchronize file to new filename
-  synchronize: src={{output_dir}}/foo.txt dest={{output_dir}}/foo.result
+  synchronize:
+    src: '{{output_dir}}/foo.txt'
+    dest: '{{output_dir}}/foo.result'
   register: sync_result
+  delegate_to: '{{ inventory_hostname }}'
 - assert:
     that:
     - '''changed'' in sync_result'
@@ -31,9 +44,13 @@
     that:
     - stat_result.stat.exists == True
     - stat_result.stat.checksum == '2aae6c35c94fcfb415dbe95f408b9ce91ee846ed'
+
 - name: test that the file is not copied a second time
-  synchronize: src={{output_dir}}/foo.txt dest={{output_dir}}/foo.result
+  synchronize:
+    src='{{output_dir}}/foo.txt'
+    dest='{{output_dir}}/foo.result'
   register: sync_result
+  delegate_to: '{{ inventory_hostname }}'
 - assert:
     that:
     - sync_result.changed == False
@@ -44,12 +61,14 @@
   with_items:
   - foo.result
   - bar.result
+
 - name: Synchronize using the mode=push param
   synchronize:
     src: '{{output_dir}}/foo.txt'
     dest: '{{output_dir}}/foo.result'
     mode: push
   register: sync_result
+  delegate_to: '{{ inventory_hostname }}'
 - assert:
     that:
     - '''changed'' in sync_result'
@@ -69,12 +88,14 @@
     that:
     - stat_result.stat.exists == True
     - stat_result.stat.checksum == '2aae6c35c94fcfb415dbe95f408b9ce91ee846ed'
+
 - name: test that the file is not copied a second time
   synchronize:
     src: '{{output_dir}}/foo.txt'
     dest: '{{output_dir}}/foo.result'
     mode: push
   register: sync_result
+  delegate_to: '{{ inventory_hostname }}'
 - assert:
     that:
     - sync_result.changed == False
@@ -85,12 +106,14 @@
   with_items:
   - foo.result
   - bar.result
+
 - name: Synchronize using the mode=pull param
   synchronize:
     src: '{{output_dir}}/foo.txt'
     dest: '{{output_dir}}/foo.result'
     mode: pull
   register: sync_result
+  delegate_to: '{{ inventory_hostname }}'
 - assert:
     that:
     - '''changed'' in sync_result'
@@ -110,12 +133,14 @@
     that:
     - stat_result.stat.exists == True
     - stat_result.stat.checksum == '2aae6c35c94fcfb415dbe95f408b9ce91ee846ed'
+
 - name: test that the file is not copied a second time
   synchronize:
     src: '{{output_dir}}/foo.txt'
     dest: '{{output_dir}}/foo.result'
     mode: pull
   register: sync_result
+  delegate_to: '{{ inventory_hostname }}'
 - assert:
     that:
     - sync_result.changed == False
@@ -126,12 +151,16 @@
   with_items:
   - foo.result
   - bar.result
+
 - name: synchronize files using with_items (issue#5965)
-  synchronize: src={{output_dir}}/{{item}} dest={{output_dir}}/{{item}}.result
+  synchronize:
+    src: '{{output_dir}}/{{item}}'
+    dest: '{{output_dir}}/{{item}}.result'
   with_items:
   - foo.txt
   - bar.txt
   register: sync_result
+  delegate_to: '{{ inventory_hostname }}'
 - assert:
     that:
     - sync_result.changed
@@ -151,9 +180,14 @@
   with_items:
   - foo.txt
   - bar.txt
+
 - name: synchronize files using rsync_path (issue#7182)
-  synchronize: src={{output_dir}}/foo.txt dest={{output_dir}}/foo.rsync_path rsync_path="sudo rsync"
+  synchronize:
+    src: '{{output_dir}}/foo.txt'
+    dest: '{{output_dir}}/foo.rsync_path'
+    rsync_path: 'sudo rsync'
   register: sync_result
+  delegate_to: '{{ inventory_hostname }}'
 - assert:
     that:
     - '''changed'' in sync_result'
@@ -186,6 +220,7 @@
     dest: '{{output_dir}}/{{item}}/foo.txt'
   with_items:
   - directory_a
+  delegate_to: '{{ inventory_hostname }}'
 - name: synchronize files using link_dest
   synchronize:
     src: '{{output_dir}}/directory_a/foo.txt'
@@ -193,6 +228,7 @@
     link_dest:
     - '{{output_dir}}/directory_a'
   register: sync_result
+  delegate_to: '{{ inventory_hostname }}'
 - name: get stat information for directory_a
   stat:
     path: '{{ output_dir }}/directory_a/foo.txt'
@@ -214,6 +250,8 @@
     - '{{output_dir}}'
   register: sync_result
   ignore_errors: true
+  delegate_to: '{{ inventory_hostname }}'
+
 - assert:
     that:
     - sync_result is not changed