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Fun With Gifs

Note

This example is a replication of an Argo Workflow example in Hera. The upstream example can be found here.

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from hera.workflows import Container, Step, Steps, Workflow
from hera.workflows.models import (
    Artifact,
    ObjectMeta,
    Outputs,
    PersistentVolumeClaim,
    PersistentVolumeClaimSpec,
    Quantity,
    VolumeMount,
    VolumeResourceRequirements,
)

with Workflow(
    api_version="argoproj.io/v1alpha1",
    kind="Workflow",
    generate_name="fun-with-gifs-",
    entrypoint="run-workflow",
    volume_claim_templates=[
        PersistentVolumeClaim(
            metadata=ObjectMeta(
                name="workdir",
            ),
            spec=PersistentVolumeClaimSpec(
                access_modes=["ReadWriteOnce"],
                resources=VolumeResourceRequirements(
                    requests={
                        "storage": Quantity(
                            root="1Gi",
                        )
                    },
                ),
            ),
        )
    ],
) as w:
    with Steps(
        name="run-workflow",
    ) as invocator:
        Step(
            name="step-1",
            template="create-output-dir",
        )
        Step(
            name="step-2",
            template="download-images",
        )
        Step(
            name="step-3",
            template="create-gif",
        )
        Step(
            name="step-4",
            template="black-and-white",
        )
        Step(
            name="step-5",
            template="combine-horizontal",
        )
        Step(
            name="step-6",
            template="combine-vertical",
        )
        Step(
            name="step-7",
            template="make-bigger",
        )
        Step(
            name="step-8",
            template="bundle-up",
        )
    Container(
        name="create-output-dir",
        command=["mkdir", "/mnt/data/output"],
        image="alpine:3.6",
        volume_mounts=[
            VolumeMount(
                mount_path="/mnt/data",
                name="workdir",
            )
        ],
    )
    Container(
        name="download-images",
        command=[
            "aws",
            "--no-sign-request",
            "s3",
            "cp",
            "--recursive",
            "s3://ax-public/cricket_gif_images",
            "/mnt/data/",
        ],
        image="mesosphere/aws-cli",
        volume_mounts=[
            VolumeMount(
                mount_path="/mnt/data",
                name="workdir",
            )
        ],
    )
    Container(
        name="create-gif",
        command=["convert", "-delay", "20", "-loop", "0", "/mnt/data/*.gif", "/mnt/data/output/orig.gif"],
        image="v4tech/imagemagick",
        volume_mounts=[
            VolumeMount(
                mount_path="/mnt/data",
                name="workdir",
            )
        ],
    )
    Container(
        name="black-and-white",
        command=["convert", "/mnt/data/output/orig.gif", "-colorspace", "Gray", "/mnt/data/output/black_white.gif"],
        image="v4tech/imagemagick",
        volume_mounts=[
            VolumeMount(
                mount_path="/mnt/data",
                name="workdir",
            )
        ],
    )
    Container(
        name="combine-horizontal",
        command=["convert", "+append", "/mnt/data/*.gif", "/mnt/data/output/horizontal.gif"],
        image="v4tech/imagemagick",
        volume_mounts=[
            VolumeMount(
                mount_path="/mnt/data",
                name="workdir",
            )
        ],
    )
    Container(
        name="combine-vertical",
        command=["convert", "-append", "/mnt/data/*.gif", "/mnt/data/output/vertical.gif"],
        image="v4tech/imagemagick",
        volume_mounts=[
            VolumeMount(
                mount_path="/mnt/data",
                name="workdir",
            )
        ],
    )
    Container(
        name="make-bigger",
        command=[
            "gifsicle",
            "/mnt/data/output/orig.gif",
            "--resize",
            "1000x800",
            "-o",
            "/mnt/data/output/orig_big.gif",
        ],
        image="starefossen/gifsicle",
        volume_mounts=[
            VolumeMount(
                mount_path="/mnt/data",
                name="workdir",
            )
        ],
    )
    Container(
        name="bundle-up",
        outputs=Outputs(
            artifacts=[
                Artifact(
                    name="output-gif",
                    path="/mnt/data/output",
                )
            ],
        ),
        command=["ls"],
        image="alpine:3.6",
        volume_mounts=[
            VolumeMount(
                mount_path="/mnt/data",
                name="workdir",
            )
        ],
    )

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apiVersion: argoproj.io/v1alpha1
kind: Workflow
metadata:
  generateName: fun-with-gifs-
spec:
  entrypoint: run-workflow
  templates:
  - name: run-workflow
    steps:
    - - name: step-1
        template: create-output-dir
    - - name: step-2
        template: download-images
    - - name: step-3
        template: create-gif
    - - name: step-4
        template: black-and-white
    - - name: step-5
        template: combine-horizontal
    - - name: step-6
        template: combine-vertical
    - - name: step-7
        template: make-bigger
    - - name: step-8
        template: bundle-up
  - name: create-output-dir
    container:
      image: alpine:3.6
      command:
      - mkdir
      - /mnt/data/output
      volumeMounts:
      - name: workdir
        mountPath: /mnt/data
  - name: download-images
    container:
      image: mesosphere/aws-cli
      command:
      - aws
      - --no-sign-request
      - s3
      - cp
      - --recursive
      - s3://ax-public/cricket_gif_images
      - /mnt/data/
      volumeMounts:
      - name: workdir
        mountPath: /mnt/data
  - name: create-gif
    container:
      image: v4tech/imagemagick
      command:
      - convert
      - -delay
      - '20'
      - -loop
      - '0'
      - /mnt/data/*.gif
      - /mnt/data/output/orig.gif
      volumeMounts:
      - name: workdir
        mountPath: /mnt/data
  - name: black-and-white
    container:
      image: v4tech/imagemagick
      command:
      - convert
      - /mnt/data/output/orig.gif
      - -colorspace
      - Gray
      - /mnt/data/output/black_white.gif
      volumeMounts:
      - name: workdir
        mountPath: /mnt/data
  - name: combine-horizontal
    container:
      image: v4tech/imagemagick
      command:
      - convert
      - +append
      - /mnt/data/*.gif
      - /mnt/data/output/horizontal.gif
      volumeMounts:
      - name: workdir
        mountPath: /mnt/data
  - name: combine-vertical
    container:
      image: v4tech/imagemagick
      command:
      - convert
      - -append
      - /mnt/data/*.gif
      - /mnt/data/output/vertical.gif
      volumeMounts:
      - name: workdir
        mountPath: /mnt/data
  - name: make-bigger
    container:
      image: starefossen/gifsicle
      command:
      - gifsicle
      - /mnt/data/output/orig.gif
      - --resize
      - 1000x800
      - -o
      - /mnt/data/output/orig_big.gif
      volumeMounts:
      - name: workdir
        mountPath: /mnt/data
  - name: bundle-up
    container:
      image: alpine:3.6
      command:
      - ls
      volumeMounts:
      - name: workdir
        mountPath: /mnt/data
    outputs:
      artifacts:
      - name: output-gif
        path: /mnt/data/output
  volumeClaimTemplates:
  - metadata:
      name: workdir
    spec:
      accessModes:
      - ReadWriteOnce
      resources:
        requests:
          storage: 1Gi

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