Optional extra arguments for pip install (#24)

Change-Id: I80a2081962d0636400492c99973aff69d28955e5

Co-authored-by: Morgan Lindqvist <Morgan@quzed.com>

README.md

@@ -20,6 +20,10 @@ Whether to install Ansible via the system `package` manager (`apt`, `yum`, `dnf`
 
 If `ansible_install_method` is set to `pip`, the specific Ansible version to be installed via Pip. If not set, the latest version of Ansible will be installed.
 
+    ansible_install_pip_extra_args: ''
+
+If `ansible_install_method` is set to `pip`, the extra arguments to be given to `pip` are listed here. If not set, no extra arguments are given.
+
 ## Dependencies
 
 None.
@@ -38,6 +42,7 @@ Install from pip:
       vars:
         ansible_install_method: pip
         ansible_install_version_pip: "2.7.0"
+        ansible_install_pip_extra_args: "--user"
       roles:
         - role: geerlingguy.pip
         - role: geerlingguy.ansible

defaults/main.yml

@@ -6,3 +6,6 @@ ansible_install_method: package
 
 # Used only if ansible_install_method is 'pip'. If empty, defaults to latest.
 ansible_install_version_pip: ''
+
+# Which extra arguments should be gived to pip
+ansible_install_pip_extra_args: ''

molecule/default/pip.yml

@@ -6,6 +6,7 @@
   vars:
     ansible_install_method: pip
     ansible_install_version_pip: "2.6.2"
+    ansible_install_pip_extra_args: "--user"
 
   roles:
     - role: geerlingguy.pip

tasks/setup-pip.yml

@@ -3,3 +3,4 @@
   pip:
     name: ansible
     version: "{{ ansible_install_version_pip | default(omit) }}"
+    extra_args: "{{ ansible_install_pip_extra_args | default(omit) }}"