Remove centos-8-stream image uploads and labels

This will stop nodepool from trying to manage centos-8-stream images in
our cloud providers. It will also remove the label from nodepool and
zuul entirely making this node type unusable. This will produce
NODE_FAILURE errors but jobs were already failing 100% of the time due
to the lack of valid package mirrors.

The followup change will stop our image builds (though they are paused
now) which will clean up the images on disk on our builders.

Depends-On: https://review.opendev.org/c/opendev/base-jobs/+/922653
Change-Id: I1bdb2441a7b8ce5c651e5e865005f80828cd6f47

nodepool/nb04.opendev.org.yaml

@@ -67,14 +67,6 @@ providers:
           os_command_line: "console=ttyAMA0"
           hw_disk_bus: scsi
           hw_scsi_model: virtio-scsi
-      - name: centos-8-stream-arm64
-        pause: false
-        config-drive: true
-        meta:
-          hw_firmware_type: uefi
-          os_command_line: "console=ttyAMA0"
-          hw_disk_bus: scsi
-          hw_scsi_model: virtio-scsi
       - name: centos-9-stream-arm64
         pause: false
         config-drive: true

nodepool/nl01.opendev.org.yaml

@@ -15,8 +15,6 @@ zookeeper-servers:
 # nl01.o.o will manage min-ready of our labels.  If nl01.o.o is ever disabled,
 # another launcher will need to assume this logic.
 labels:
-  - name: centos-8-stream
-    min-ready: 0
   - name: centos-9-stream
     min-ready: 1
   - name: debian-bookworm
@@ -53,8 +51,6 @@ providers:
     launch-timeout: 600
     rate: 0.001
     diskimages: &provider_diskimages
-      - name: centos-8-stream
-        config-drive: true
       - name: centos-9-stream
         config-drive: true
       - name: debian-bookworm
@@ -83,11 +79,6 @@ providers:
       - name: main
         max-servers: 140
         labels: &provider_pools_labels
-          - name: centos-8-stream
-            min-ram: 8192
-            flavor-name: 'Performance'
-            diskimage: centos-8-stream
-            key-name: infra-root-keys-2024-04-08
           - name: centos-9-stream
             min-ram: 8192
             flavor-name: 'Performance'

nodepool/nl03.opendev.org.yaml

@@ -19,7 +19,6 @@ zookeeper-servers:
 # e.g. *-arm64
 labels:
   # x86_64
-  - name: centos-8-stream
   - name: centos-9-stream
   - name: debian-bookworm
   - name: debian-bullseye
@@ -34,8 +33,6 @@ labels:
   - name: ubuntu-noble
 
   # arm64
-  - name: centos-8-stream-arm64
-    min-ready: 0
   - name: centos-9-stream-arm64
     min-ready: 0
   - name: rockylinux-9-arm64
@@ -96,8 +93,6 @@ labels:
     min-ready: 0
   - name: nested-virt-ubuntu-noble
     min-ready: 0
-  - name: nested-virt-centos-8-stream
-    min-ready: 0
   - name: nested-virt-centos-9-stream
     min-ready: 0
   - name: nested-virt-rockylinux-9
@@ -112,8 +107,6 @@ providers:
     boot-timeout: 120
     rate: 0.001
     diskimages: &provider_diskimages
-      - name: centos-8-stream
-        config-drive: true
       - name: centos-9-stream
         config-drive: true
       - name: debian-bookworm
@@ -225,13 +218,6 @@ providers:
       - name: main
         max-servers: 0
         labels:
-          - name: centos-8-stream
-            min-ram: 8000
-            flavor-name: v2-highcpu-8
-            boot-from-volume: true
-            volume-size: 80
-            diskimage: centos-8-stream
-            key-name: infra-root-keys-2024-04-08
           - name: centos-9-stream
             min-ram: 8000
             flavor-name: v2-highcpu-8
@@ -344,13 +330,6 @@ providers:
             volume-size: 80
             diskimage: ubuntu-noble
             key-name: infra-root-keys-2024-04-08
-          - name: nested-virt-centos-8-stream
-            min-ram: 8000
-            flavor-name: v2-highcpu-8
-            boot-from-volume: true
-            volume-size: 80
-            diskimage: centos-8-stream
-            key-name: infra-root-keys-2024-04-08
           - name: nested-virt-centos-9-stream
             min-ram: 8000
             flavor-name: v2-highcpu-8
@@ -377,8 +356,6 @@ providers:
     diskimages:
       - name: centos-9-stream-arm64
         config-drive: true
-      - name: centos-8-stream-arm64
-        config-drive: true
       - name: debian-bookworm-arm64
         config-drive: true
       - name: debian-bullseye-arm64
@@ -401,10 +378,6 @@ providers:
             flavor-name: 'opendev.large'
             diskimage: centos-9-stream-arm64
             key-name: infra-root-keys-2024-04-08
-          - name: centos-8-stream-arm64
-            flavor-name: 'opendev.large'
-            diskimage: centos-8-stream-arm64
-            key-name: infra-root-keys-2024-04-08
           - name: debian-bookworm-arm64
             flavor-name: 'opendev.large'
             diskimage: debian-bookworm-arm64

nodepool/nl04.opendev.org.yaml

@@ -15,7 +15,6 @@ zookeeper-servers:
 # nl01.o.o will manage min-ready of our labels.  If nl01.o.o is ever disabled,
 # another launcher will need to assume this logic.
 labels:
-  - name: centos-8-stream
   - name: centos-9-stream
   - name: debian-bookworm
   - name: debian-bullseye
@@ -40,8 +39,6 @@ labels:
     min-ready: 0
   - name: nested-virt-ubuntu-noble
     min-ready: 0
-  - name: nested-virt-centos-8-stream
-    min-ready: 0
   - name: nested-virt-centos-9-stream
     min-ready: 0
   - name: nested-virt-rockylinux-9
@@ -57,8 +54,6 @@ providers:
     launch-timeout: 600
     rate: 0.1
     diskimages: &provider_diskimages
-      - name: centos-8-stream
-        config-drive: true
       - name: centos-9-stream
         config-drive: true
       - name: debian-bookworm
@@ -87,11 +82,6 @@ providers:
       - name: main
         max-servers: 120
         labels: &provider_pools_labels
-          - name: centos-8-stream
-            min-ram: 8000
-            flavor-name: ssd-osFoundation-3
-            diskimage: centos-8-stream
-            key-name: infra-root-keys-2024-04-08
           - name: centos-9-stream
             min-ram: 8000
             flavor-name: ssd-osFoundation-3
@@ -182,11 +172,6 @@ providers:
             flavor-name: ssd-osFoundation-3
             diskimage: ubuntu-noble
             key-name: infra-root-keys-2024-04-08
-          - name: nested-virt-centos-8-stream
-            min-ram: 8000
-            flavor-name: ssd-osFoundation-3
-            diskimage: centos-8-stream
-            key-name: infra-root-keys-2024-04-08
           - name: nested-virt-centos-9-stream
             min-ram: 8000
             flavor-name: ssd-osFoundation-3

nodepool/nodepool.yaml

@@ -19,8 +19,6 @@ providers:
     # 6 hours
     image-upload-timeout: 21600
     diskimages: &provider_diskimages
-      - name: centos-8-stream
-        config-drive: true
       - name: centos-9-stream
         config-drive: true
       - name: debian-bookworm