raspi-k8s-rah

Overview

Participate Rosetta@home on Kubernetes with Raspberry Pi.

The Rosetta@home project recently added support for fighting COVID-19.
https://boinc.bakerlab.org/rosetta/forum_thread.php?id=13702

I created Rosetta@home teams, which was named raspi-k8s-rah.
If you like, please participate in this team.

 

Prerequisites

Operation in the following production environment has been verified.

Raspberry Pi 4 Model B 2G/4G RAM

• ubuntu-18.04.4-preinstalled-server-arm64+raspi4.img.xz

Docker

• v19.03.8

Kubernetes

• v1.17.5

 

Usage

First of all, you need to edit configmap section on "manifests/raspi-k8s-rah.yaml" .
Please fill in your Rosetta@home account key instead of "<your account key>" .

manifests/raspi-k8s-rah.yaml

---

apiVersion: v1
kind: ConfigMap
metadata:
  namespace: raspi-k8s-rah
  name: raspi-k8s-rah-cm
data:
  account_key: <your account key>
  cc_config.conf: |
    <cc_config>
      <log_flags>
        <task>1</task>
        <file_xfer>1</file_xfer>
        <sched_ops>1</sched_ops>
      </log_flags>
      <options>
        <alt_platform>aarch64-unknown-linux-gnu</alt_platform>
      </options>
    </cc_config>
    
---

 

You can run Rosetta@home on Kubernetes when you issue the following command.
It runs as a DeamonSet (runs one replica per node) .

kubectl apply -f ./manifests/

 

You can confirm pod status issuing the following command.

kubectl -n raspi-k8s-rah get pod

 

The following command can monitor logs of the running pod in real-time.

kubectl -n raspi-k8s-rah logs -f -c boinc <pod name>

 

As usual, the client can also be controlled from the command line via the boinccmd command.
From the Raspberry Pi, which can issue kubectl command, you can issue commands via,

kubectl -n raspi-k8s-rah exec -c boinc-client <pod name> -- boinccmd <args>

 

If you want to see tasks progress, you should issue a command via,

kubectl -n raspi-k8s-rah exec -c boinc-client <pod name> -- boinccmd --get_tasks

 

Customizing

If you want to change the resource allocation, you should edit daemonset section on "manifests/raspi-k8s-rah.yaml" .

manifests/raspi-k8s-rah.yaml

apiVersion: apps/v1
kind: DaemonSet
metadata:
  namespace: raspi-k8s-rah
  name: raspi-k8s-rah
  labels:
    app: raspi-k8s-rah
spec:
  selector:
      matchLabels:
        app: raspi-k8s-rah
  template:
    metadata:
      labels:
        app: raspi-k8s-rah
    spec:
      volumes:
        - name: raspi-k8s-rah-config
          configMap: 
            name: raspi-k8s-rah-cm
      containers:
        - name: boinc
          imagePullPolicy: Always
          image: "sosomasox/boinc:arm64"

        - name: boinc-client
          imagePullPolicy: Always
          image: "sosomasox/boinc-client:arm64"
          volumeMounts:
            - name: raspi-k8s-rah-config
              mountPath: /var/lib/boinc-client/
              readOnly: true
          env:
            - name: ROSETTA_AT_HOME_ACCOUNT_KEY
              valueFrom:
                configMapKeyRef:
                  name: raspi-k8s-rah-cm
                  key: account_key
          resources:
            limits:
              cpu: 2 # How much CPU you wish to donate per node
              memory: 2Gi
            requests:
              cpu: 2
              memory: 2Gi

---