Deprecate instance network boot

Remove or update the corresponding CI jobs. Use the new custom Cirros
image in the HTTP job to avoid relying on CentOS.

Temporary increase complexity requirements while we have a deprecation
warning in the provisioner.

Change-Id: I5e65f9949ee3b78430309017800b88c1ba21dd02

.zuul.yaml

@@ -114,6 +114,7 @@
       centos_glance_kernel_image: test-centos-kernel
       centos_glance_root_image: test-centos-partition
       centos_glance_whole_disk_image: test-centos-wholedisk
+      metalsmith_netboot: false
       metalsmith_root_size: 9
       metalsmith_python: python3
 
@@ -138,7 +139,6 @@
         s-object: false
         s-proxy: false
       configure_instance_user: metalsmith
-      metalsmith_netboot: false
       metalsmith_precreate_port: false
       metalsmith_partition_image: test-centos-partition
       metalsmith_whole_disk_image: test-centos-wholedisk
@@ -159,27 +159,12 @@
       metalsmith_boot_mode: bios
 
 - job:
-    name: metalsmith-integration-glance-netboot-cirros
-    description: |
-        Integration job using Glance as image source and direct deploy.
-    parent: metalsmith-integration-base
-    run: playbooks/integration/run.yaml
-    vars:
-      devstack_localrc:
-        IRONIC_BOOT_MODE: bios
-      metalsmith_netboot: true
-      metalsmith_precreate_port: false
-
-- job:
-    name: metalsmith-integration-http-netboot-cirros
+    name: metalsmith-integration-http-cirros
     description: |
         Integration job using HTTP as image source and direct deploy.
     parent: metalsmith-integration-base
     run: playbooks/integration/run.yaml
     vars:
-      devstack_localrc:
-        IRONIC_BOOT_MODE: bios
-      metalsmith_netboot: true
       metalsmith_precreate_port: true
       metalsmith_use_http: true
 
@@ -194,13 +179,11 @@
       jobs:
         - metalsmith-integration-glance-centos8-uefi
         - metalsmith-integration-glance-centos8-legacy
-        - metalsmith-integration-glance-netboot-cirros
-        - metalsmith-integration-http-netboot-cirros
+        - metalsmith-integration-http-cirros
         - openstack-tox-linters
     gate:
       jobs:
         - metalsmith-integration-glance-centos8-uefi
         - metalsmith-integration-glance-centos8-legacy
-        - metalsmith-integration-glance-netboot-cirros
-        - metalsmith-integration-http-netboot-cirros
+        - metalsmith-integration-http-cirros
         - openstack-tox-linters

metalsmith/_provisioner.py

@@ -14,6 +14,7 @@
 # limitations under the License.
 
 import logging
+import warnings
 
 from openstack import connection
 from openstack import exceptions as os_exc
@@ -350,6 +351,7 @@ class Provisioner(object):
         :param hostname: Hostname to assign to the instance. If provided,
             overrides the ``hostname`` passed to ``reserve_node``.
         :param netboot: Whether to use networking boot for final instances.
+            Deprecated and does not work in Ironic Zed.
         :param capabilities: Requested capabilities of the node. If present,
             overwrites the capabilities set by :meth:`reserve_node`.
             Note that the capabilities are not checked against the ones
@@ -368,6 +370,10 @@ class Provisioner(object):
             is already finished.
         :raises: :py:class:`metalsmith.exceptions.Error`
         """
+        if netboot:
+            warnings.warn("Network boot is deprecated and does not work in "
+                          "Ironic Zed", DeprecationWarning)
+
         if config is None:
             config = instance_config.GenericConfig()
         if isinstance(image, str):

playbooks/integration/cirros-image.yaml

@@ -1,8 +1,8 @@
 ---
-- name: Find Cirros UEC image
-  shell: openstack image list -f value -c Name | grep 'cirros-.*-uec$' | sort | tail -n1
-  register: cirros_uec_image_result
-  failed_when: cirros_uec_image_result.stdout == ""
+- name: Find Cirros partition image
+  shell: openstack image list -f value -c Name | grep 'cirros-.*-partition$' | sort | tail -n1
+  register: cirros_partition_image_result
+  failed_when: cirros_partition_image_result.stdout == ""
 
 - name: Find Cirros disk image
   shell: openstack image list -f value -c Name | grep 'cirros-.*-disk$' | sort | tail -n1
@@ -12,10 +12,15 @@
 - name: Set image facts for Glance image
   set_fact:
     metalsmith_whole_disk_image: "{{ cirros_disk_image_result.stdout }}"
-    metalsmith_partition_image: "{{ cirros_uec_image_result.stdout }}"
+    metalsmith_partition_image: "{{ cirros_partition_image_result.stdout }}"
   when: not (metalsmith_use_http | default(false))
 
 - block:
+    - name: Find Cirros UEC image
+      shell: openstack image list -f value -c Name | grep 'cirros-.*-uec$' | sort | tail -n1
+      register: cirros_uec_image_result
+      failed_when: cirros_uec_image_result.stdout == ""
+
     - name: Get baremetal HTTP endpoint
       shell: |
         source /opt/stack/devstack/openrc admin admin > /dev/null
@@ -25,7 +30,7 @@
       register: baremetal_endpoint_result
       failed_when: baremetal_endpoint_result.stdout == ""
 
-    - name: Copy partition images directory
+    - name: Copy UEC images directory
       command: >
         cp -r /opt/stack/devstack/files/images/{{ cirros_uec_image_result.stdout }}
             /opt/stack/data/ironic/httpboot/metalsmith
@@ -41,6 +46,14 @@
         creates: /opt/stack/data/ironic/httpboot/metalsmith/{{ cirros_disk_image_result.stdout }}.img
       become: yes
 
+    - name: Copy partition image
+      command: >
+        cp /opt/stack/data/ironic/{{ cirros_partition_image_result.stdout }}.img
+            /opt/stack/data/ironic/httpboot/metalsmith
+      args:
+        creates: /opt/stack/data/ironic/httpboot/metalsmith/{{ cirros_partition_image_result.stdout }}.img
+      become: yes
+
     - name: Create MD5 checksums file for images
       shell: md5sum cirros-* > CHECKSUMS
       args:
@@ -65,7 +78,7 @@
 
     - name: Set facts for HTTP image
       set_fact:
-        metalsmith_partition_image: "{{ baremetal_endpoint_result.stdout}}/metalsmith/{{ cirros_uec_image_result.stdout | replace('-uec', '-blank') }}.img"
+        metalsmith_partition_image: "{{ baremetal_endpoint_result.stdout}}/metalsmith/{{ cirros_partition_image_result.stdout }}.img"
         metalsmith_partition_kernel_image: "{{ baremetal_endpoint_result.stdout}}/metalsmith/{{ cirros_uec_image_result.stdout | replace('-uec', '-vmlinuz') }}"
         metalsmith_partition_ramdisk_image: "{{ baremetal_endpoint_result.stdout}}/metalsmith/{{ cirros_uec_image_result.stdout | replace('-uec', '-initrd') }}"
         metalsmith_partition_checksum: "{{ baremetal_endpoint_result.stdout}}/metalsmith/CHECKSUMS"

tox.ini

@@ -82,7 +82,7 @@ deps =
 [flake8]
 # [W503] Line break before binary operator.
 ignore = W503
-max-complexity=15
+max-complexity=16
 import-order-style = pep8
 application-import-names = metalsmith
 # [H106] Don't put vim configuration in source files.
@@ -100,4 +100,4 @@ deps =
   ansible>=5,<6
   ansible-lint>=5,<6
 commands =
-    bash tools/ansible-lint.sh
+    bash tools/ansible-lint.sh