rm3l_ghost-export-to-s3.cronjob.yaml

apiVersion: batch/v1beta1
kind: CronJob
metadata:
  name: ghost-s3-export-cron-job
spec:
  schedule: "@daily"
  concurrencyPolicy: Forbid
  jobTemplate:
    spec:
      ttlSecondsAfterFinished: 300
      backoffLimit: 1
      parallelism: 1
      template:
        spec:
          restartPolicy: OnFailure
          volumes:
          - name: export-data
            emptyDir: {}

          initContainers:
          - name: download-glorious-json-from-ghost
            image: curlimages/curl:7.74.0
            imagePullPolicy: IfNotPresent
            command:
            - /bin/sh
            - -c
            - |
              curl --fail -sSL -c /tmp/ghost-cookie.txt \
                -d username='$(GHOST_AUTH_USERNAME)' \
                -d password='$(GHOST_AUTH_PASSWORD)' \
                -H 'Origin: ghost-export-to-s3-job' \
                '$(GHOST_URL)'/api/v3/admin/session/ && \
              curl --fail -sSL -b /tmp/ghost-cookie.txt \
                -H 'Origin: ghost-export-to-s3-job' \
                -H 'Content-Type: application/json' \
                '$(GHOST_URL)'/api/v3/admin/db/ \
                -o /data/ghost-export/ghost-export.json && \
              rm -rf /tmp/ghost-cookie.txt
            env:
            - name: GHOST_URL
              valueFrom:
                configMapKeyRef:
                  name: ghost-export-k8s-to-s3-configmap
                  key: GHOST_URL
            - name: GHOST_AUTH_USERNAME
              valueFrom:
                secretKeyRef:
                  name: ghost-export-k8s-to-s3-secret
                  key: GHOST_AUTH_USERNAME
            - name: GHOST_AUTH_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: ghost-export-k8s-to-s3-secret
                  key: GHOST_AUTH_PASSWORD
            volumeMounts:
            - name: export-data
              mountPath: /data/ghost-export

          containers:
          - name: export-ghost-json-to-s3
            image: amazon/aws-cli:2.1.15
            imagePullPolicy: IfNotPresent
            args:
            - s3
            - cp
            - "/data/to-export/ghost-export.json"
            - "$(S3_DESTINATION)"
            env:
            - name: AWS_ACCESS_KEY_ID
              valueFrom:
                secretKeyRef:
                  name: ghost-export-k8s-to-s3-secret
                  key: AWS_ACCESS_KEY_ID
            - name: AWS_SECRET_ACCESS_KEY
              valueFrom:
                secretKeyRef:
                  name: ghost-export-k8s-to-s3-secret
                  key: AWS_SECRET_ACCESS_KEY
            - name: S3_DESTINATION
              valueFrom:
                configMapKeyRef:
                  name: ghost-export-k8s-to-s3-configmap
                  key: S3_DESTINATION
            volumeMounts:
            - name: export-data
              mountPath: /data/to-export