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Detail the approach of steps for StarlingX O-Cloud All-in-one Duplex deployment
1.1) Description
The All-in-one Duplex (AIO-DX) deployment option provides a pair of high availability (HA) servers with each server providing all three cloud functions (controller, worker, and storage).
An AIO-DX configuration provides the following benefits:
Only a small amount of cloud processing and storage power is required
Application consolidation using multiple containers or virtual machines on a single pair of physical servers
High availability (HA) services run on the controller function across two physical servers in either active/active or active/standby mode
A storage back end solution using a two-node CEPH deployment across two servers
Containers or virtual machines scheduled on both worker functions
Protection against overall server hardware fault, where
All controller HA services go active on the remaining healthy server
All containers and/or virtual machines are recovered on the remaining healthy server
1.2) System topology
2. Minimum Requirements
Detail the hardware and software requirements necessary for the installation
Number of servers: 2
Cores:
Dual-CPU Intel® Xeon® E5 26xx family (SandyBridge) 8 cores/socket
or Single-CPU Intel® Xeon® D-15xx family, 8 cores (low-power/low-cost option)
RAM:
64GB
Storage:
Primary Disk: 500 GB SSD or NVMe
Additional disks:
1 or more 500 GB (min. 10K RPM) for Ceph OSD
Operating System
Debian 11 (bullsye), included in the StarlingX ISO installation.
More Details of the Requirements:
3. Installation
step-by-step instructions for deployment
3.1) Step 1: Install OS and Software from ISO image on controller-0
Expected Result: The OS and Software installation complete successfully on controller-0 and reboot into the system.
3.2) Step 2: Bootstrap system with ansible playbook on controller-0
Expected Result: Ansible bootstrap playbook complete successfully on controller-0
3.3) Step 3: Configure and unlock controller-0
Expected Result: The system is unlocked and controller-0 reboot successfully.
3.4) Step 4: Install OS and Software on controller-1 thruogh PXE
Expected Result: The OS and Software installation complete successfully on controller-0 and reboot into the system.
3.5) Step 5: Configure and unlock controller-1
Expected Result: The system is unlocked and controller-1 reboot successfully.
4. Post-Installation Verification
Outline how to verify that the installation was successful.
4.1) Step 1: Check if both controllers in the system is in state of unlocked, enabled and available
Expected Result:
| Code Block |
|---|
~(keystone_admin)$ system host-list
+----+--------------+-------------+----------------+-------------+--------------+
| id | hostname | personality | administrative | operational | availability |
+----+--------------+-------------+----------------+-------------+--------------+
| 1 | controller-0 | controller | unlocked | enabled | available |
| 2 | controller-1 | controller | unlocked | enabled | available |
+----+--------------+-------------+----------------+-------------+--------------+ |
4.2) Step 2: Check ceph cluster health if Ceph is configured:
Expected Result:
| Code Block |
|---|
$ ceph -s
cluster:
id: c18dfe3a-9b72-46e4-bb6e-6984f131598f
health: HEALTH_OK
services:
mon: 2 daemons, quorum a,b (age 9m)
mgr: a(active, since 6m), standbys: b
mds: 1/1 daemons up, 1 hot standby
osd: 2 osds: 2 up (since 7m), 2 in (since 7m)
data:
volumes: 1/1 healthy
pools: 4 pools, 113 pgs
objects: 25 objects, 594 KiB
usage: 72 MiB used, 19 GiB / 20 GiB avail
pgs: 113 active+clean
io:
client: 1.2 KiB/s rd, 2 op/s rd, 0 op/s wr |
5. Troubleshooting
Provide common issues and their solutions.
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List of additional documentation, links, or resources that may be helpful.
Documentation: (Link to official documentation or user manuals.)Support: (Contact information for support or a link to a support forum.) https://docs.starlingx.io/deploy_install_guides/release/bare_metal/aio_duplex_install_kubernetes.html
Support:
Report issue if found: https://lf-o-ran-sc.atlassian.net/jira/software/c/projects/INF/issues
Contact: Jackie.Huang@windriver.com