Adapt dependency playbook to work with cent 7+8

Fix bug in bashrc ps1

playbooks/dependencies.yml

@@ -1,12 +1,27 @@
 ---
-- hosts: all
-  name: Ansible python bindings
+- name: Check meta environment
+  hosts: all
   tags:
     - always
     - initialize
   tasks:
-    - name: Install CentOS python bindings
-      when: ansible_distribution == "CentOS"
+    - name: Check required operating system
+      when: required_os is defined
+      assert:
+        that:
+          - required_os.split("_")[0] == ansible_distribution | lower
+          - required_os.split("_")[1] == ansible_distribution_major_version
+        fail_msg: "Host does not meet required OS specified"
+        success_msg: "Required OS validation succeeded"
+
+- name: Ansible python bindings
+  hosts: all
+  tags:
+    - always
+    - initialize
+  tasks:
+    - name: Install CentOS 8 python bindings
+      when: ansible_distribution == "CentOS" and ansible_distribution_major_version == "8"
       become: true
       dnf:
         state: latest
@@ -15,6 +30,16 @@
           - python3-policycoreutils
           - python3-firewall
 
+    - name: Install CentoOS 7 python bindings
+      when: ansible_distribution == "CentOS" and ansible_distribution_major_version == "7"
+      become: true
+      yum:
+        state: latest
+        name:
+          - libselinux-python
+          - policycoreutils-python
+          - python3-firewall
+
     - name: Install Fedora python bindings
       when: ansible_distribution == "Fedora"
       become: true

playbooks/files/bashrc.sh

@@ -58,4 +58,4 @@ alias date='/usr/bin/date --iso-8601=seconds'
 alias whatismyip='curl https://icanhazip.com/'
 
 export rc=/home/$USERNAME/.bashrc
-export PS1="\[\e[0;97m\]\[\e[37m\e[1m]\]\u\[\e[1;94m\]@\[\e[94m\]\H\[\e[0;33m\]$(parse_git_branch) \[\e[37m\]\w\[\e[33m\] \[\e[0;97m\]$\[\e[0m\] "
+export PS1="\[\e[0;97m\]\[\e[37m\e[1m\]\u\[\e[1;94m\]@\[\e[94m\]\H\[\e[0;33m\]$(parse_git_branch) \[\e[37m\]\w\[\e[33m\] \[\e[0;97m\]$\[\e[0m\] "