Initial support for RHEL8

tasks/base/RedHat-8/install_dependencies.yml

@@ -6,3 +6,4 @@
   with_items:
   - lvm2
   - iptables
+  - policycoreutils-python-utils

tasks/base/RedHat-8/install_podman.yml

@@ -0,0 +1,18 @@
+---
+- name: disable SELinux
+  selinux:
+    state: disabled
+
+- name: Install Podman
+  package:
+    name: "{{ podman_version_map[podman_version]['package'] }}"
+    state: present
+  loop:
+    - "{{ podman_version_map[podman_version]['package'] }}"
+
+- name: Verify that fs.may_detach_mounts is enabled
+  lineinfile:
+    path: /etc/sysctl.conf
+    regexp: '^fs.may_detach_mounts'
+    line: 'fs.may_detach_mounts = 1'
+    create: yes

tasks/base/RedHat-8/main.yml

@@ -7,5 +7,6 @@
   ignore_errors: true
 
 - include_tasks: install_dependencies.yml
-- include_tasks: install_docker.yml
-  tags: [install_docker, destructive]
+- ansible.builtin.include_tasks: install_podman.yml
+  tags: [install_docker, destructive]
+  when: container_engine == "Podman"

tasks/base/general/configure_podman.yml

@@ -63,4 +63,5 @@
     daemon_reload: yes
   loop:
     - podman.service
-    - podman.socket
+    - podman.socket
+    - podman-restart.service

tasks/ece-bootstrap/primary/install_stack.yml

@@ -27,7 +27,7 @@
 
 - name: Monitor installer progress
   ansible.builtin.shell: 
-    cmd: tail -n 5 /mnt/data/elastic/logs/bootstrap-logs/bootstrap.log
+    cmd: "tail -n 5 {{ data_dir }}/elastic/logs/bootstrap-logs/bootstrap.log"
   until: "'[no.found.util.LogApplicationExit$] Application is exiting {}' in ece_installer_result_text.stdout"
   register: ece_installer_result_text
   retries: 192

vars/os_RedHat_8.yml

@@ -1,29 +1,12 @@
 ---
-docker_unit_after: "multi-user.target"
-docker_storage_driver: overlay2
 bootloader_update_command: grub2-mkconfig -o /etc/grub2.cfg
 conntrack_module: ip_conntrack
-container_engine: Docker
+container_engine: Podman
 
-# Docker version mapping
-docker_version_map:
-  "19.03":
-    name: 'Docker-CE'
+# Podman version mapping
+podman_version_map:
+  "4.9.4":
+    name: "podman"
     package:
-      - docker-ce-19.03.13
-      - docker-ce-cli-19.03.13
-      - containerd.io-1.5.11
-    repo: https://download.docker.com/linux/centos/docker-ce.repo
-    keys:
-      server: https://download.docker.com/linux/centos/gpg
-      id: 060A 61C5 1B55 8A7F 742B 77AA C52F EB6B 621E 9F35
-  "20.10":
-    name: 'Docker-CE'
-    package:
-      - docker-ce-20.10.8
-      - docker-ce-cli-20.10.8
-      - containerd.io-1.5.11
-    repo: https://download.docker.com/linux/centos/docker-ce.repo
-    keys:
-      server: https://download.docker.com/linux/centos/gpg
-      id: 060A 61C5 1B55 8A7F 742B 77AA C52F EB6B 621E 9F35
+      - podman-4.9.4
+      - podman-remote-4.9.4