browsertrix/backend/btrixcloud/k8s/templates/crawler.yaml

# --------
# REDIS
# --------
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: redis-{{ id }}
  namespace: {{ namespace }}
  labels:
    crawl: {{ id }}
    role: redis

spec:
  selector:
    matchLabels:
      crawl: {{ id }}
      role: redis

  serviceName: redis-{{ id }}
  replicas: 1
  podManagementPolicy: Parallel

  persistentVolumeClaimRetentionPolicy:
    whenDeleted: Delete
    whenScaled: Delete

  volumeClaimTemplates:
    - metadata:
        name: redis-data
        labels:
          crawl: {{ id }}
          role: crawler

      spec:
        accessModes:
          - ReadWriteOnce

        resources:
          requests:
            storage: 1Gi

        {% if volume_storage_class %}
        storageClassName: {{ volume_storage_class }}
        {% endif %}

  template:
    metadata:
      labels:
        crawl: {{ id }}
        role: redis

    spec:
      terminationGracePeriodSeconds: 10
      #nodeSelector: {{ crawl_node_selector }}
      volumes:
        - name: shared-redis-conf
          configMap:
            name: shared-job-config
            items:
              - key: redis.conf
                path: redis.conf

      #  - name: redis-conf
      #    emptyDir: {}

      #initContainers:
      #  - name: init-redis
      #    image: {{ redis_image }}
      #    imagePullPolicy: {{ redis_image_pull_policy }}
      #    command:
      #      - bash
      #      - "-c"
      #      - |
      #        set -ex
      #        # if no ordinal found in hostname, something is wrong, exit
      #        [[ `hostname` =~ (.+)-([0-9]+)$ ]] || exit 1
      #        ordinal=${BASH_REMATCH[2]}
      #        base=${BASH_REMATCH[1]}

      #        # if ordinal is 0, use main config, otherwise use replica
      #        cp /shared-redis-conf/redis.conf /redis-conf/redis.conf
      #        if [[ $ordinal -ne 0 ]]; then
      #          echo "replicaof $base-0.$base 6379" >> /redis-conf/redis.conf
      #        fi

      #    volumeMounts:
      #      - name: shared-redis-conf
      #        mountPath: /shared-redis-conf

      #      - name: redis-conf
      #        mountPath: /redis-conf

      affinity:
        nodeAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
            - weight: 1
              preference:
                matchExpressions:
                - key: nodeType
                  operator: In
                  values:
                    - "{{ redis_node_type }}"

        podAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
            - weight: 2
              podAffinityTerm:
                topologyKey: "failure-domain.beta.kubernetes.io/zone"
                labelSelector:
                  matchLabels:
                    job-name: job-{{ id }}
                    crawl: {{ id }}

      tolerations:
        - key: "nodeType"
          operator: "Equal"
          value: "crawling"
          effect: "NoSchedule"

      containers:
        - name: redis
          image: {{ redis_image }}
          imagePullPolicy: {{ redis_image_pull_policy }}

          args: ["/redis-conf/redis.conf", "--appendonly", "yes"]
          volumeMounts:
            - name: redis-data
              mountPath: /data

            - name: shared-redis-conf
              mountPath: /redis-conf

          resources:
            limits:
              cpu: {{ redis_limits_cpu }}
              memory: {{ redis_limits_memory }}

            requests:
              cpu: {{ redis_requests_cpu }}
              memory: {{ redis_requests_memory }}

          readinessProbe:
            exec:
              command:
                - redis-cli
                - ping

---
apiVersion: v1
kind: Service
metadata:
  name: redis-{{ id }}
  labels:
    crawl: {{ id }}
    role: redis
 
spec:
  clusterIP: None
  selector:
    crawl: {{ id }}
    role: redis

  ports:
    - protocol: TCP
      port: 6379
      name: redis

# -------
# CRAWLER
# -------
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: crawl-{{ id }}
  namespace: {{ namespace }}
  labels:
    crawl: {{ id }}
    role: crawler

spec:
  selector:
    matchLabels:
      crawl: {{ id }}
      role: crawler

  serviceName: crawl-{{ id }}
  replicas: {{ scale }}
  podManagementPolicy: Parallel

  persistentVolumeClaimRetentionPolicy:
    whenDeleted: Delete
    whenScaled: Delete

  volumeClaimTemplates:
    - metadata:
        name: crawl-data
        labels:
          crawl: {{ id }}
          role: crawler

      spec:
        accessModes:
          - ReadWriteOnce

        resources:
          requests:
            storage: {{ requests_hd }}

        {% if volume_storage_class %}
        storageClassName: {{ volume_storage_class }}
        {% endif %}

  template:
    metadata:
      labels:
        crawl: {{ id }}
        role: crawler

    spec:
      terminationGracePeriodSeconds: {{ termination_grace_secs }}
      #nodeSelector: {{ crawl_node_selector }}
      volumes:
        - name: crawl-config
          configMap:
            name: crawl-config-{{ cid }}

      affinity:
        nodeAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
            - weight: 1
              preference:
                matchExpressions:
                - key: nodeType
                  operator: In
                  values:
                    - "{{ crawler_node_type }}"

        podAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
            - weight: 2
              podAffinityTerm:
                topologyKey: "failure-domain.beta.kubernetes.io/zone"
                labelSelector:
                  matchLabels:
                    job-name: job-{{ id }}
                    crawl: {{ id }}

      tolerations:
        - key: "nodeType"
          operator: "Equal"
          value: "crawling"
          effect: "NoSchedule"

      containers:
        - name: crawler
          image: {{ crawler_image }}
          imagePullPolicy: {{ crawler_image_pull_policy }}
          command:
            - crawl
            - --config
            - /tmp/crawl-config.json
            - --redisStoreUrl
            - {{ redis_url }}
          {%- if env.PROFILE_FILENAME %}
            - --profile
            - "@profiles/{{ env.PROFILE_FILENAME }}"
          {%- endif %}

          volumeMounts:
            - name: crawl-config
              mountPath: /tmp/crawl-config.json
              subPath: crawl-config.json
              readOnly: True

            - name: crawl-data
              mountPath: /crawls

          envFrom:
            - configMapRef:
                name: shared-crawler-config

            - secretRef:
                name: storage-{{ storage_name }}

          env:
            - name: CRAWL_ID
              value: {{ id }}

            - name: WEBHOOK_URL
              value: {{ redis_url }}/crawls-done

            - name: STORE_PATH
              value: {{ env.STORE_PATH }}

            - name: STORE_FILENAME
              value: {{ env.STORAGE_FILENAME }}

            - name: STORE_USER
              value: {{ env.USER_ID }}

          resources:
            limits:
              cpu: {{ crawler_limits_cpu }}
              memory: {{ crawler_limits_memory }}

            requests:
              cpu: {{ crawler_requests_cpu }}
              memory: {{ crawler_requests_memory }}

          {% if crawler_liveness_port and crawler_liveness_port != '0' %}
          livenessProbe:
            httpGet:
              path: /healthz
              port: {{ crawler_liveness_port }}

            initialDelaySeconds: 15
            periodSeconds: 120
            failureThreshold: 3
          {% endif %}

---
apiVersion: v1
kind: Service
metadata:
  name: crawl-{{ id }}
  labels:
    crawl: {{ id }}
    role: crawler
 
spec:
  clusterIP: None
  selector:
    crawl: {{ id }}
    role: crawler

  ports:
    - protocol: TCP
      port: 9037
      name: screencast