Add GPG Key for EPEL8 Repo

The patch adds the GPG key for the EPEL 8 repo to allow gpgcheck
to be successful.

Change-Id: I6402d45ca541b8bb7a35ed73b63256f13c58e4f3

files/gpg/2F86D6A1

@@ -0,0 +1,28 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+
+mQINBFz3zvsBEADJOIIWllGudxnpvJnkxQz2CtoWI7godVnoclrdl83kVjqSQp+2
+dgxuG5mUiADUfYHaRQzxKw8efuQnwxzU9kZ70ngCxtmbQWGmUmfSThiapOz00018
++eo5MFabd2vdiGo1y+51m2sRDpN8qdCaqXko65cyMuLXrojJHIuvRA/x7iqOrRfy
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+/Mt3mQm/li+lRKU25Usk9dWaf4NH/wZHMIPAkVJ4uD4H/uS49wqWnyiTYGT7hUbi
+ecF7crhLCmlRzvJR8mkRP6/4T/F3tNDPWZeDNEDVFUkTFHNU6/h2+O398MNY/fOh
+yKaNK3nnE0g6QJ1dOH31lXHARlpFOtWt3VmZU0JnWLeYdvap4Eff9qTWZJhI7Cq0
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+zKK4OjJ644NDcWCHa36znwVmkz3ixL8Q0auR15Oqq2BjR/fyog==
+=84m8
+-----END PGP PUBLIC KEY BLOCK-----

tasks/main.yml

@@ -26,6 +26,43 @@
   tags:
     - always
 
+# Copy all factored-in GPG keys.
+# KeyID 2F86D6A1 from https://dl.fedoraproject.org/pub/epel/RPM-GPG-KEY-EPEL-8
+- name: If a keyfile is provided, copy the gpg keyfile to the key location
+  copy:
+    src: "{{ item.keyfile }}"
+    dest: "{{ item.key }}"
+    mode: '0644'
+  with_items: "{{ systemd_networkd_package_repos_keys | selectattr('keyfile','defined') | list }}"
+  when:
+    - ansible_os_family | lower == 'redhat'
+    - ansible_distribution_major_version is version('8', '>=')
+
+- name: Ensure GPG keys have the correct SELinux contexts applied
+  command: restorecon -Rv /etc/pki/rpm-gpg/
+  # TODO(evrardjp): Be more idempotent
+  changed_when: false
+  when:
+    - ansible_os_family | lower == 'redhat'
+    - ansible_distribution_major_version is version('8', '>=')
+
+# Handle gpg keys manually
+- name: Install gpg keys
+  rpm_key:
+    key: "{{ key.key }}"
+    validate_certs: "{{ key.validate_certs | default(omit) }}"
+    state: "{{ key.state | default('present') }}"
+  with_items: "{{ systemd_networkd_package_repos_keys }}"
+  loop_control:
+    loop_var: key
+  register: _add_yum_keys
+  until: _add_yum_keys  is success
+  retries: 5
+  delay: 2
+  when:
+    - ansible_os_family | lower == 'redhat'
+    - ansible_distribution_major_version is version('8', '>=')
+
 - name: Install the EPEL repository
   yum_repository:
     name: epel-networkd

vars/redhat-8.yml

@@ -21,3 +21,8 @@ _systemd_resolved_available: false
 _systemd_networkd_update_initramfs: "dracut -f"
 
 systemd_networkd_enablerepo: epel
+
+systemd_networkd_package_repos_keys:
+  - name: epel-8
+    key: /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-8
+    keyfile: gpg/2F86D6A1