Allow changing DIB_RELEASE and add a job with CentOS 8

Change-Id: Ia0e3897ba414827fb81ba7ca7367e86899ea455a

.zuul.yaml

@@ -67,6 +67,17 @@
       image_type: 'dib'
       image_distro: 'centos7'
 
+- job:
+    name: ironic-python-agent-check-image-dib-centos8
+    parent: ironic-python-agent-check-image-base
+    required-projects:
+      # NOTE(dtantsur): used for bindep only
+      - openstack/diskimage-builder
+    vars:
+      image_type: 'dib'
+      image_distro: 'centos-minimal'
+      image_release: 8
+
 - job:
     name: ironic-python-agent-check-image-dib-fedora
     parent: ironic-python-agent-check-image-base
@@ -112,6 +123,8 @@
         - ipa-tempest-wholedisk-bios-ipmi-iscsi-tinyipa-src
         - ironic-python-agent-check-image-tinyipa
         - ironic-python-agent-check-image-dib-centos7
+        - ironic-python-agent-check-image-dib-centos8:
+            voting: false
         - ironic-python-agent-check-image-dib-fedora:
             voting: false
         - ironic-python-agent-check-image-dib-ubuntu:

dib/ironic-python-agent-ramdisk/pkg-map

@@ -8,6 +8,15 @@
         "qemu-utils": "qemu-img",
         "python-dev": "python3-devel"
       }
+    },
+    "centos": {
+      "8": {
+        "tgt": "targetcli",
+        "curl": "curl",
+        "ironic-python-agent": "openstack-ironic-python-agent",
+        "qemu-utils": "qemu-img",
+        "python-dev": "python3-devel"
+      }
     }
   },
   "family": {

ironic_python_agent_builder/__init__.py

@@ -42,6 +42,7 @@ def find_elements_path():
 def main():
     parser = argparse.ArgumentParser()
     parser.add_argument("distribution", help="Distribution to use")
+    parser.add_argument("-r", "--release", help="Distribution release to use")
     parser.add_argument("-o", "--output", help="Output base file name",
                         default="ironic-python-agent")
     parser.add_argument("-e", "--element", action='append', default=[],
@@ -54,6 +55,8 @@ def main():
         # size of the image.
         os.environ['DIB_INSTALLTYPE_pip_and_virtualenv'] = 'package'
     args = parser.parse_args()
+    if args.release:
+        os.environ['DIB_RELEASE'] = args.release
     try:
         subprocess.check_call(['disk-image-create', '-o', args.output,
                                'ironic-python-agent-ramdisk',

roles/ipa-build-dib-image/defaults/main.yaml

@@ -1,4 +1,5 @@
 image_distro: centos7
+image_release:
 ipa_branch_path: '{{ zuul.branch | replace("/", "-") }}'
 ipa_source_path: '{{ ansible_user_dir }}/src/opendev.org/openstack/ironic-python-agent'
 ipa_raw_dir: '{{ ansible_user_dir }}/src/opendev.org/openstack/ironic-python-agent/UPLOAD_RAW'

roles/ipa-build-dib-image/tasks/main.yaml

@@ -4,7 +4,9 @@
 
 - name: Build a DIB image
   command: |
-    ironic-python-agent-builder -o {{ image_name }} {{ image_distro }}
+    ironic-python-agent-builder -o {{ image_name }}
+        {{ "-r {}".format(image_release) if image_release else '' }}
+        {{ image_distro }}
   environment:
     # Increase from the default value of 30
     DIB_DHCP_TIMEOUT: 60