Enables check and diff mode on plays

Allows "Capture installed Java provider" & "Capture installed Java version" tasks to run during check/diff mode, so that facts are populated successfully later
Allows Postgres or MySQL Connectors to run during check/diff mode

Signed-off-by: Chuck Levesque <clevesque@cloudera.com>

roles/prereqs/mysql_connector/tasks/main.yml

@@ -35,20 +35,23 @@
     lock_timeout: "{{ (ansible_os_family == 'RedHat') | ternary(60, omit) }}"
     name: unzip
     state: present
+  ignore_errors: "{{ ansible_check_mode }}"
 
 - name: Extract MySQL Connector/J zip file
   unarchive:
     src: "{{ mysql_connector_download_dir }}/mysql-connector-java.zip"
     dest: "{{ mysql_connector_extract_dir }}"
     exclude:
       - src
+  ignore_errors: "{{ ansible_check_mode }}"
 
 - name: Copy MySQL Connector/J jar file to correct location
   copy:
     src: "{{ mysql_connector_local_path }}"
     dest: /usr/share/java/mysql-connector-java.jar
     remote_src: yes
     mode: 0644
+  ignore_errors: "{{ ansible_check_mode }}"
 
 # MySql on rhel8 fix
 - name: Fix MySQL on RHEL8
@@ -70,6 +73,7 @@
       template:
         src: my_config.h
         dest: /usr/include/mysql/my_config.h
+      ignore_errors: "{{ ansible_check_mode }}"
 
 ## TODO Fix for RHEL8
     - name: Install Mysql packages for python - PyMySQL

roles/prereqs/postgresql_connector/tasks/main.yml

@@ -35,6 +35,7 @@
     src: "{{ local_temp_dir }}/postgresql-connector-java.jar"
     dest: /usr/share/java/postgresql-connector-java.jar
     mode: 0644
+  ignore_errors: "{{ ansible_check_mode }}"
 
 # SSB will need the python3-psycopg2 connector
 
@@ -47,4 +48,4 @@
 
 - name: Install python3-psycopg2
   shell: "pip3 install psycopg2-binary==2.8.5 -t /usr/share/python3"
-  when: install_py3_psycopg2 == true
+  when: install_py3_psycopg2 == true