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Install Kubernetes Platform on All-in-one Simplex

partner

starlingx

This section describes the steps to install the StarlingX Kubernetes platform on a StarlingX R5.0 All-in-one Simplex deployment configuration.

Create a bootable USB

Refer to Bootable USB <bootable_usb> for instructions on how to create a bootable USB with the StarlingX ISO on your system.

Install software on controller-0

Bootstrap system on controller-0

Login using the username / password of "sysadmin" / "sysadmin". When logging in for the first time, you will be forced to change the password.
```
Login: sysadmin
Password:
Changing password for sysadmin.
(current) UNIX Password: sysadmin
New Password:
(repeat) New Password:
```
Verify and/or configure IP connectivity.

External connectivity is required to run the Ansible bootstrap playbook. The StarlingX boot image will out all interfaces so the server may have obtained an IP address and have external IP connectivity if a server is present in your environment. Verify this using the ip addr and ping 8.8.8.8 commands.

Otherwise, manually configure an IP address and default IP route. Use the PORT, IP-ADDRESS/SUBNET-LENGTH and GATEWAY-IP-ADDRESS applicable to your deployment environment.
```
sudo ip address add <IP-ADDRESS>/<SUBNET-LENGTH> dev <PORT>
sudo ip link set up dev <PORT>
sudo ip route add default via <GATEWAY-IP-ADDRESS> dev <PORT>
ping 8.8.8.8
```
Specify user configuration overrides for the Ansible bootstrap playbook.

Ansible is used to bootstrap StarlingX on controller-0. Key files for Ansible configuration are:

/etc/ansible/hosts

The default Ansible inventory file. Contains a single host: localhost.

/usr/share/ansible/stx-ansible/playbooks/bootstrap.yml

The Ansible bootstrap playbook.

/usr/share/ansible/stx-ansible/playbooks/host_vars/bootstrap/default.yml

The default configuration values for the bootstrap playbook.

sysadmin home directory ($HOME)

The default location where Ansible looks for and imports user configuration override files for hosts. For example: $HOME/<hostname>.yml.

starlingx

Specify the user configuration override file for the Ansible bootstrap playbook using one of the following methods:
1. Use a copy of the default.yml file listed above to provide your overrides.
  
  The default.yml file lists all available parameters for bootstrap configuration with a brief description for each parameter in the file comments.
  
  To use this method, copy the default.yml file listed above to $HOME/localhost.yml and edit the configurable values as desired.
2. Create a minimal user configuration override file.
  
  To use this method, create your override file at $HOME/localhost.yml and provide the minimum required parameters for the deployment configuration as shown in the example below. Use the IP SUBNET and IP ADDRESSing applicable to your deployment environment.
```
cd ~
cat <<EOF > localhost.yml
system_mode: simplex

dns_servers:
  - 8.8.8.8
  - 8.8.4.4

external_oam_subnet: <OAM-IP-SUBNET>/<OAM-IP-SUBNET-LENGTH>
external_oam_gateway_address: <OAM-GATEWAY-IP-ADDRESS>
external_oam_floating_address: <OAM-FLOATING-IP-ADDRESS>

admin_username: admin
admin_password: <admin-password>
ansible_become_pass: <sysadmin-password>

EOF
```
  starlingx
  
  In either of the above options, the bootstrap playbook’s default values will pull all container images required for the from Docker hub.
  
  If you have setup a private Docker registry to use for bootstrapping then you will need to add the following lines in $HOME/localhost.yml:
  
  partner
```
docker_registries:
  quay.io:
     url: myprivateregistry.abc.com:9001/quay.io
  docker.elastic.co:
     url: myprivateregistry.abc.com:9001/docker.elastic.co
  gcr.io:
     url: myprivateregistry.abc.com:9001/gcr.io
  k8s.gcr.io:
     url: myprivateregistry.abc.com:9001/k8s.gcr.io
  docker.io:
     url: myprivateregistry.abc.com:9001/docker.io
  defaults:
     type: docker
     username: <your_myprivateregistry.abc.com_username>
     password: <your_myprivateregistry.abc.com_password>

# Add the CA Certificate that signed myprivateregistry.abc.com’s
# certificate as a Trusted CA
ssl_ca_cert: /home/sysadmin/myprivateregistry.abc.com-ca-cert.pem
```
  See Use a Private Docker Registry <use-private-docker-registry-r5> for more information.
  
  starlingx
  
  If a firewall is blocking access to Docker hub or your private registry from your StarlingX deployment, you will need to add the following lines in $HOME/localhost.yml (see Docker Proxy Configuration <docker_proxy_config> for more details about Docker proxy settings):
  
  partner
```
# Add these lines to configure Docker to use a proxy server
docker_http_proxy: http://my.proxy.com:1080
docker_https_proxy: https://my.proxy.com:1443
docker_no_proxy:
   - 1.2.3.4
```
  Refer to Ansible Bootstrap Configurations <ansible_bootstrap_configs_r5> for information on additional Ansible bootstrap configurations for advanced Ansible bootstrap scenarios.
Run the Ansible bootstrap playbook:
```
ansible-playbook /usr/share/ansible/stx-ansible/playbooks/bootstrap.yml
```
Wait for Ansible bootstrap playbook to complete. This can take 5-10 minutes, depending on the performance of the host machine.

Configure controller-0

The newly installed controller needs to be configured.

Acquire admin credentials:
```
source /etc/platform/openrc
```
Configure the interface of controller-0 and specify the attached network as "oam". The following example configures the OAM interface on a physical untagged ethernet port, use port name that is applicable to your deployment environment, for example eth0:
```
OAM_IF=<OAM-PORT>
system host-if-modify controller-0 $OAM_IF -c platform
system interface-network-assign controller-0 $OAM_IF oam

To configure a vlan or aggregated ethernet interface, see :ref:`Node
Interfaces <node-interfaces-index>`.
```
Configure servers for network time synchronization:
```
system ntp-modify ntpservers=0.pool.ntp.org,1.pool.ntp.org
```
To configure instead of , see PTP Server Configuration <ptp-server-config-index>.

openstack

OpenStack-specific host configuration

Important

These steps are required only if the StarlingX OpenStack application (stx-openstack) will be installed.

For OpenStack only: Assign OpenStack host labels to controller-0 in support of installing the stx-openstack manifest and helm-charts later.

system host-label-assign controller-0 openstack-control-plane=enabled
system host-label-assign controller-0 openstack-compute-node=enabled
system host-label-assign controller-0 openvswitch=enabled
system host-label-assign controller-0 sriov=enabled

For OpenStack only: Due to the additional openstack services running on the controller platform cores, a minimum of 4 platform cores are required, 6 platform cores are recommended.

Increase the number of platform cores with the following commands:
```
# Assign 6 cores on processor/numa-node 0 on controller-0 to platform
system host-cpu-modify -f platform -p0 6 controller-0
```

Due to the additional openstack services’ containers running on the controller host, the size of the docker filesystem needs to be increased from the default size of 30G to 60G.

# check existing size of docker fs
system host-fs-list controller-1
# check available space (Avail Size (GiB)) in cgts-vg LVG where docker fs is located
system host-lvg-list controller-1
# if existing docker fs size + cgts-vg available space is less than 60G,
# you will need to add a new disk partition to cgts-vg

   # Assuming you have unused space on ROOT DISK, add partition to ROOT DISK.
   # ( if not use another unused disk )

   # Get device path of ROOT DISK
   system host-show controller-1 --nowrap | fgrep rootfs

   # Get UUID of ROOT DISK by listing disks
   system host-disk-list controller-1

   # Create new PARTITION on ROOT DISK, and take note of new partition’s ‘uuid’ in response
   # Use a partition size such that you’ll be able to increase docker fs size from 30G to 60G
   PARTITION_SIZE=30
   system hostdisk-partition-add -t lvm_phys_vol controller-1 <root-disk-uuid> ${PARTITION_SIZE}

   # Add new partition to ‘cgts-vg’ local volume group
   system host-pv-add controller-1 cgts-vg <NEW_PARTITION_UUID>
   sleep 2    # wait for partition to be added

   # Increase docker filesystem to 60G
   system host-fs-modify controller-1 docker=60

For OpenStack only: Configure the system setting for the vSwitch.
starlingx

StarlingX has (kernel-based) vSwitch configured as default:
- Runs in a container; defined within the helm charts of stx-openstack manifest.
- Shares the core(s) assigned to the platform.
If you require better performance, ( with the Data Plane Development Kit, which is supported only on bare metal hardware) should be used:
- Runs directly on the host (it is not containerized). Requires that at least 1 core be assigned/dedicated to the vSwitch function.
To deploy the default containerized :
```
system modify --vswitch_type none
```
This does not run any vSwitch directly on the host, instead, it uses the containerized defined in the helm charts of -openstack manifest.
To deploy , run the following command:

system modify --vswitch_type

Default recommendation for an -controller is to use a single core for vswitch.
```
# assign 1 core on processor/numa-node 0 on controller-0 to vswitch
system host-cpu-modify -f vswitch -p0 0 controller-0
```
When using , configure 1G of huge pages for vSwitch memory on each node where vswitch is running on the host. It is recommended to configure 1x 1G huge page (-1G 1) for vSwitch memory on each node where vswitch is running on host. However, due to a limitation with Kubernetes, only a single huge page size is supported on any one host. If your application require 2M huge pages, then configure 500x 2M huge pages (-2M 500) for vSwitch memory on each node where vswitch is running on host.
```
# Assign 1x 1G huge page on processor/numa-node 0 on controller-0 to vswitch
system host-memory-modify -f vswitch -1G 1 controller-0 0
```
Important

created in an environment must be configured to use huge pages to enable networking and must use a flavor with property: hw:mem_page_size=large

Configure the huge pages for VMs in an environment on this host, assuming 1G huge page size is being used on this host, with the following commands:
```
# assign 1x 1G huge page on processor/numa-node 0 on controller-0 to applications
system host-memory-modify -f application -1G 10 controller-0 0

# assign 1x 1G huge page on processor/numa-node 1 on controller-0 to applications
system host-memory-modify -f application -1G 10 controller-0 1
```
Note

After controller-0 is unlocked, changing vswitch_type requires locking and unlocking controller-0 to apply the change.

For OpenStack only: Set up disk partition for nova-local volume group, which is needed for stx-openstack nova ephemeral disks.

# Create ‘nova-local’ local volume group
system host-lvg-add ${NODE} nova-local

# Get UUID of DISK to create PARTITION to be added to ‘nova-local’ local volume group
# CEPH OSD Disks can NOT be used
# For best performance, do NOT use system/root disk, use a separate physical disk.

# List host’s disks and take note of UUID of disk to be used
system host-disk-list ${NODE}
# ( if using ROOT DISK, select disk with device_path of
#   ‘system host-show ${NODE} --nowrap | fgrep rootfs’   )

# Create new PARTITION on selected disk, and take note of new partition’s ‘uuid’ in response
# The size of the PARTITION needs to be large enough to hold the aggregate size of
# all nova ephemeral disks of all VMs that you want to be able to host on this host,
# but is limited by the size and space available on the physical disk you chose above.
# The following example uses a small PARTITION size such that you can fit it on the
# root disk, if that is what you chose above.
# Additional PARTITION(s) from additional disks can be added later if required.
PARTITION_SIZE=30

system hostdisk-partition-add -t lvm_phys_vol ${NODE} <disk-uuid> ${PARTITION_SIZE}

# Add new partition to ‘nova-local’ local volume group
system host-pv-add ${NODE} nova-local <NEW_PARTITION_UUID>
sleep 2

For OpenStack only: Configure data interfaces for controller-0. Data class interfaces are vswitch interfaces used by vswitch to provide VM virtio vNIC connectivity to OpenStack Neutron Tenant Networks on the underlying assigned Data Network.

Important

A compute-labeled -controller host MUST have at least one Data class interface.

Configure the data interfaces for controller-0.

export NODE=controller-0

# List inventoried host’s ports and identify ports to be used as ‘data’ interfaces,
# based on displayed linux port name, pci address and device type.
system host-port-list ${NODE}

# List host’s auto-configured ‘ethernet’ interfaces,
# find the interfaces corresponding to the ports identified in previous step, and
# take note of their UUID
system host-if-list -a ${NODE}

# Modify configuration for these interfaces
# Configuring them as ‘data’ class interfaces, MTU of 1500 and named data#
system host-if-modify -m 1500 -n data0 -c data ${NODE} <data0-if-uuid>
system host-if-modify -m 1500 -n data1 -c data ${NODE} <data1-if-uuid>

# Create Data Networks that vswitch 'data' interfaces will be connected to
DATANET0='datanet0'
DATANET1='datanet1'
system datanetwork-add ${DATANET0} vlan
system datanetwork-add ${DATANET1} vlan

# Assign Data Networks to Data Interfaces
system interface-datanetwork-assign ${NODE} <data0-if-uuid> ${DATANET0}
system interface-datanetwork-assign ${NODE} <data1-if-uuid> ${DATANET1}

Optionally Configure PCI-SRIOV Interfaces

Optionally, configure pci-sriov interfaces for controller-0.

This step is optional for Kubernetes. Do this step if using network attachments in hosted application containers.

openstack

This step is optional for OpenStack. Do this step if using vNICs in hosted application VMs. Note that pci-sriov interfaces can have the same Data Networks assigned to them as vswitch data interfaces.

Configure the pci-sriov interfaces for controller-0.

export NODE=controller-0

# List inventoried host’s ports and identify ports to be used as ‘pci-sriov’ interfaces,
# based on displayed linux port name, pci address and device type.
system host-port-list ${NODE}

# List host’s auto-configured ‘ethernet’ interfaces,
# find the interfaces corresponding to the ports identified in previous step, and
# take note of their UUID
system host-if-list -a ${NODE}

# Modify configuration for these interfaces
# Configuring them as ‘pci-sriov’ class interfaces, MTU of 1500 and named sriov#
system host-if-modify -m 1500 -n sriov0 -c pci-sriov ${NODE} <sriov0-if-uuid>
system host-if-modify -m 1500 -n sriov1 -c pci-sriov ${NODE} <sriov1-if-uuid>

# If not already created, create Data Networks that the 'pci-sriov' interfaces will
# be connected to
DATANET0='datanet0'
DATANET1='datanet1'
system datanetwork-add ${DATANET0} vlan
system datanetwork-add ${DATANET1} vlan

# Assign Data Networks to PCI-SRIOV Interfaces
system interface-datanetwork-assign ${NODE} <sriov0-if-uuid> ${DATANET0}
system interface-datanetwork-assign ${NODE} <sriov1-if-uuid> ${DATANET1}

For Kubernetes Only: To enable using network attachments for the above interfaces in Kubernetes hosted application containers:

Configure the Kubernetes device plugin.

system host-label-assign controller-0 sriovdp=enabled

If planning on running in Kubernetes hosted application containers on this host, configure the number of 1G Huge pages required on both nodes.

# assign 10x 1G huge page on processor/numa-node 0 on controller-0 to applications
system host-memory-modify -f application controller-0 0 -1G 10

# assign 10x 1G huge page on processor/numa-node 1 on controller-0 to applications
system host-memory-modify -f application controller-0 1 -1G 10

If required, initialize a Ceph-based Persistent Storage Backend

A persistent storage backend is required if your application requires .

openstack

Important

The StarlingX OpenStack application requires .

starlingx

There are two options for persistent storage backend: the host-based Ceph solution and the Rook container-based Ceph solution.

For host-based Ceph:

Add host-based Ceph backend:

system storage-backend-add ceph --confirmed

Add an on controller-0 for host-based Ceph:

# List host’s disks and identify disks you want to use for CEPH OSDs, taking note of their UUID
# By default, /dev/sda is being used as system disk and can not be used for OSD.
system host-disk-list controller-0

# Add disk as an OSD storage
system host-stor-add controller-0 osd <disk-uuid>

# List OSD storage devices
system host-stor-list controller-0

starlingx

For Rook container-based Ceph:

Add Rook container-based backend:

system storage-backend-add ceph-rook --confirmed

Assign Rook host labels to controller-0 in support of installing the rook-ceph-apps manifest/helm-charts later:

system host-label-assign controller-0 ceph-mon-placement=enabled
system host-label-assign controller-0 ceph-mgr-placement=enabled

Unlock controller-0

Unlock controller-0 to bring it into service:

system host-unlock controller-0

Controller-0 will reboot in order to apply configuration changes and come into service. This can take 5-10 minutes, depending on the performance of the host machine.

starlingx

If using Rook container-based Ceph, finish configuring the ceph-rook Persistent Storage Backend

On controller-0:

Wait for application rook-ceph-apps to be uploaded

$ source /etc/platform/openrc
$ system application-list
+---------------------+---------+-------------------------------+---------------+----------+-----------+
| application         | version | manifest name                 | manifest file | status   | progress  |
+---------------------+---------+-------------------------------+---------------+----------+-----------+
| oidc-auth-apps      | 1.0-0   | oidc-auth-manifest            | manifest.yaml | uploaded | completed |
| platform-integ-apps | 1.0-8   | platform-integration-manifest | manifest.yaml | uploaded | completed |
| rook-ceph-apps      | 1.0-1   | rook-ceph-manifest            | manifest.yaml | uploaded | completed |
+---------------------+---------+-------------------------------+---------------+----------+-----------+

Configure rook to use /dev/sdb disk on controller-0 as a ceph .

system host-disk-wipe -s --confirm controller-0 /dev/sdb

values.yaml for rook-ceph-apps.

cluster:
  storage:
    nodes:
    - name: controller-0
      devices:
      - name: /dev/disk/by-path/pci-0000:00:03.0-ata-2.0

system helm-override-update rook-ceph-apps rook-ceph kube-system --values values.yaml

Apply the rook-ceph-apps application.
```
system application-apply rook-ceph-apps
```

Wait for pod to be ready.

kubectl get pods -n kube-system
rook--ceph-crashcollector-controller-0-764c7f9c8-bh5c7   1/1     Running     0          62m
rook--ceph-mgr-a-69df96f57-9l28p                         1/1     Running     0          63m
rook--ceph-mon-a-55fff49dcf-ljfnx                        1/1     Running     0          63m
rook--ceph-operator-77b64588c5-nlsf2                     1/1     Running     0          66m
rook--ceph-osd-0-7d5785889f-4rgmb                        1/1     Running     0          62m
rook--ceph-osd-prepare-controller-0-cmwt5                0/1     Completed   0          2m14s
rook--ceph-tools-5778d7f6c-22tms                         1/1     Running     0          64m
rook--discover-kmv6c                                     1/1     Running     0          65m

starlingx

Next steps

partner

25 KiB Raw Blame History Unescape Escape

Install Kubernetes Platform on All-in-one Simplex

Create a bootable USB

Install software on controller-0

Bootstrap system on controller-0

Configure controller-0

OpenStack-specific host configuration

Optionally Configure PCI-SRIOV Interfaces

If required, initialize a Ceph-based Persistent Storage Backend

Unlock controller-0

If using Rook container-based Ceph, finish configuring the ceph-rook Persistent Storage Backend

Next steps

25 KiB

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