ansible: install Python 3.9 on RHEL 8 (#3719)

Fixes: #3718

Author: targos

ansible/roles/baselayout/tasks/partials/repo/rhel8.yml

@@ -12,3 +12,15 @@
   ansible.builtin.dnf:
     name: https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm
     state: present
+
+- name: install Python 3.9
+  ansible.builtin.dnf:
+    name: ['python39']
+    state: present
+  notify: package updated
+
+- name: update python3 package alternatives
+  community.general.alternatives:
+    link: /usr/bin/python3
+    name: python3
+    path: /usr/bin/python3.9

ansible/roles/build-test-v8/tasks/partials/rhel8-ppc64.yml

@@ -5,10 +5,9 @@
 #
 
 # V8 builds still require Python 2.
-# Newer V8 builds require Python 3.8, or later.
 - name: install packages required to build V8
   ansible.builtin.dnf:
-    name: ['glib2-devel', 'python2', 'python2-pip', 'python39']
+    name: ['glib2-devel', 'python2', 'python2-pip']
     state: present
   notify: package updated
 
@@ -18,12 +17,6 @@
     name: python
     path: /usr/bin/python2
 
-- name: update python3 package alternatives
-  community.general.alternatives:
-    link: /usr/bin/python3
-    name: python3
-    path: /usr/bin/python3.9
-
 - name: install dependencies for V8 build tools (Python 2)
   ansible.builtin.pip:
     executable: pip2

ansible/roles/build-test-v8/tasks/partials/rhel8-s390x.yml

@@ -5,10 +5,9 @@
 #
 
 # Older V8 builds still require Python 2.
-# Newer V8 builds require Python 3.8, or later.
 - name: install packages required to build V8
   ansible.builtin.dnf:
-    name: ['GConf2-devel', 'python2', 'python2-pip', 'python39', 'patch']
+    name: ['GConf2-devel', 'python2', 'python2-pip', 'patch']
     state: present
   notify: package updated
 
@@ -18,12 +17,6 @@
     name: python
     path: /usr/bin/python2
 
-- name: update python3 package alternatives
-  community.general.alternatives:
-    link: /usr/bin/python3
-    name: python3
-    path: /usr/bin/python3.9
-
 - name: install dependencies for V8 build tools (Python 2)
   ansible.builtin.pip:
     executable: pip2

ansible/roles/build-test-v8/tasks/partials/rhel8-x64.yml

@@ -11,10 +11,9 @@
     state: enabled
 
 # V8 builds still require Python 2.
-# Newer V8 builds require Python 3.8, or later.
 - name: install packages required to build V8
   ansible.builtin.dnf:
-    name: ['ninja-build', 'python2', 'python2-pip', 'python39']
+    name: ['ninja-build', 'python2', 'python2-pip']
     state: present
   notify: package updated
 
@@ -24,12 +23,6 @@
     name: python
     path: /usr/bin/python2
 
-- name: update python3 package alternatives
-  community.general.alternatives:
-    link: /usr/bin/python3
-    name: python3
-    path: /usr/bin/python3.9
-
 - name: install dependencies for V8 build tools (Python 2)
   ansible.builtin.pip:
     executable: pip2