Update ansible script for generating packages to verify if the version of go is current and is /usr/bin/python exist

data/ansible/packages/go.yaml

@@ -11,6 +11,18 @@
     mode: 'u=rwx,go=rx'
     dest: '{{ golang_download_dir }}'
 
+- name: Register the current Go version (if any)
+  command: /usr/local/go/bin/go version
+  ignore_errors: yes
+  register: go_version
+  changed_when: false
+
+- name: Remove old installation of Go
+  file:
+    path: /usr/local/go
+    state: absent
+  when: go_version is failed or go_version.stdout != go_version_target
+
 - name: download Go language SDK
   get_url:
     url: '{{ golang_mirror }}/{{ golang_redis_filename }}'

data/ansible/packages/main.yaml

@@ -1,4 +1,16 @@
 ---
+- name: symlink /usr/bin/python -> /usr/bin/python3
+  hosts: all
+  remote_user: '{{ gouser }}'
+  gather_facts: false
+  tasks:
+    - name: symlink /usr/bin/python -> /usr/bin/python3
+      raw: |
+        if [ -f /usr/bin/python3 ] && [ ! -f /usr/bin/python ]; then
+          ln --symbolic /usr/bin/python3 /usr/bin/python; 
+        fi
+      become: true
+
 - hosts: all
   vars:
     ###############################################################
@@ -6,6 +18,7 @@
     ###############################################################
     # Go language SDK version number
     golang_version: '1.13'
+    go_version_target: "go version go{{ golang_version }} linux/amd64"
     # Mirror to download the Go language SDK redistributable package from
     golang_mirror: 'https://storage.googleapis.com/golang'
     # Base installation directory the Go language SDK distribution