Helm Chart Parameters

This is a summary of the Helm chart parameters that can be used to customise PST deployment, configuration, and integration. The defaults values can be located in the chart’s values file.

SKA PST

Global values

Global values are used to propagate configuration to ska-pst-core and ska-pst-lmc.

Parameter	Description	Default
`global.data-product-pvc-name`	Static shared storage expected to be set in a parent chart. This value takes precedence over `ska-pst-core.send.dataProductPVC`. Involved PersistentVolumeClaim is expected to exist.	test-sdp-storage
`global.ports`	PST.CORE components	`dsp`, `recv`, `stat`, and `smrb`
`global.ports.recv`	RECV.CORE components.	`recv-mgmt`, and `recv-datastream`
`global.ports.recv.recv-mgmt`	Port configurations used for communication with PST.LMC	`port`, `protocol`, and `targetport`
`global.ports.recv.recv-mgmt.port`	Port exposed to outside of the k8s pod	18080
`global.ports.recv.recv-mgmt.protocol`	Protocol	TCP
`global.ports.recv.recv-mgmt.targetport`	Port exposed by a container in a k8s Pod	18080
`global.ports.recv.recv-datastream`	Port configurations used to receive UDP data stream.	`port`, `protocol`, and `targetport`
`global.ports.recv.recv-datastream.port`	Port exposed to outside of the k8s pod	32080
`global.ports.recv.recv-datastream.protocol`	Protocol	UDP
`global.ports.recv.recv-datastream.targetport`	Port exposed by a container in a k8s Pod	32080

Override example:

# Override ports used for communication between ska-pst-core and ska-pst-lmc
# Shared storage in the form of PersistentVolumeClaim with the name of test is expected to exist
global:
    tango_host: databaseds-tango-base-test:10000
    data-product-pvc-name: test
    sub-system:
        ska-tango-base:
            enabled: false
    ports:
        recv:
            recv-mgmt:
                port:       28080
        smrb:
            smrb-mgmt:
                port:       28081
        dsp_disk:
            dsp-disk-mgmt:
                port:       28082
        stat:
            stat-mgmt:
                port:       28083
        send:
          enabled: true

SKA PST CORE Parameters

Parameter	Description	Default
`ska-pst-core.dsp.command`	Command executed in the dsp container	bash
`ska-pst-core.dsp.args`	Arguments to the command	["-c","ska_pst_dsp_disk -v -c ${DSP_DISK_MGMT_PORT}"]
`ska-pst-core.recv.command`	Command executed in the recv container	bash
`ska-pst-core.recv.args`	Arguments to the command	["-c","ska_pst_smrb_core -v -c ${SMRB_MGMT_PORT}"]
`ska-pst-core.smrb.command`	Command executed in the smrb container	bash
`ska-pst-core.smrb.args`	Arguments to the command	["-c","ska_pst_recv_udpdb ${POD_IP} -v -p ${RECV_DATASTREAM_PORT} -c ${RECV_MGMT_PORT}"]
`ska-pst-core.stat.command`	Command executed in the smrb container	bash
`ska-pst-core.stat.args`	Arguments to the command	["-c","ska_pst_stat_core -c ${STAT_MGMT_PORT}"]
`ska-pst-core.volumeMounts`	List of storage configurations mounted to the dsp container of ska-pst-core	[]
`ska-pst-core.resources`	Used for reserving k8s nodes resources. `WARNING: supporting k8s infrastructure processes could be evicted as a result of resource starvation.`	`{}`
`ska-pst-core.send.enabled`	Enable/Disable the prototype send component of PST.	false
`ska-pst-core.send.dataProductPVC`	Simulated sdp shared storage. Involved PersistentVolumeClaim gets created as part of the chart deployment.	test-pst-storage

Override example:

ska-pst-core:
    enabled: true
    # Override commands + args to bash to all containers in ska-pst-core
    recv:
        command: ["bash"]
        args: []
    smrb:
        command: ["bash"]
        args: []
    dsp:
        command: ["bash"]
        args: []
    # Enable the send prototype where a simulated shared storage is created with the storage size of 5Gi
    send:
      enabled: true
      dataProductPVC:
        name: test-pst-storage
        size: 5Gi

    # Use all available storage types in SKAO infrastructure
    # https://developer.skao.int/en/latest/tools/containers/orchestration-guidelines.html#storage-in-kubernetes-clusters-managed-by-the-systems-team
    volumeMounts:
        - containerPath: /tmp/
          name: default
          size: 50Gi
          type: emptyDir
        - containerPath: /mnt/hostPath
          hostPath: /tmp/
          name: mnt-hostPath
          type: hostPath
        - containerPath: /mnt/block
          name: mnt-block
          type: block # renders to k8s templates required for utilising storage class bds1
          size: 50Gi
        - containerPath: /mnt/nfs
          name: mnt-nfs
          type: nfs # renders to k8s templates required for utilising storage class nfss1
          size: 50Gi

    # Deploy to specific host. i.e. psi-pst1 in PSI LOW
    nodeSelector:
        kubernetes.io/hostname: psi-pst1

    # Request for specific k8s node resources
    limits:
      cpu: 1000m
      memory: 16Gi
    requests:
      cpu: 500m
      memory: 8Gi

SKA PST LMC Parameters

The ska-pst-lmc chart deploys the latest release of PST.LMC from the artefact.skao.int registry. By default, PST.LMC is deployed in simulation mode. The current default Helm chart parameters can be viewed in the ska-pst LMC values file.

Parameter	Description	Default
`global.ports`	Port configuration for component devices	`smrb`, `recv`, `dsp_disk`, and `stat`
`global.ports.smrb`	Port configuration for SMRB component device	`smrb-mgmt`
`global.ports.smrb.smrb-mgmt`	Port configuration for SMRB component manager	`port`, `protocol`
`global.ports.smrb.smrb-mgmt.port`	Port used by SMRB component manager	18080
`global.ports.recv.recv-mgmt.port`	Port used by RECV component manager	18081
`global.ports.dsp_disk.dsp-disk-mgmt.port`	Port used by DSP component manager	18082
`global.ports.stat.stat-mgmt.port`	Port used by STAT component manager	18083
`subsystem_id`	The subsystem used in output path of files written by DSP and STAT. This should be pst-low or pst-mid.	pst-low
`beam.simulationMode`	Run Beam logical device in simulation mode	1
`beam.mountPath`	The local file system mount path. This is used to define where the mounting of the PST server’s local file system within the LMC container.	/mnt/lfs
`beam.scanOutputDirPattern`	The pattern where to write the output scan configuration needed to send to SDP when scan completes. This will get prepedned with `mountPath	product/<eb_id>/<subsystem_id>/<scan_id>
`beam.monitor_polling_rate`	The time interval, in milliseconds, at which the PST.BEAM will publish scan monitoring values.	5000