77 lines
2.5 KiB
Python
77 lines
2.5 KiB
Python
# Copyright 2019 The Kubeflow Authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""This sample uses Rok as an example to show case how VolumeOp accepts
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annotations as an extra argument, and how we can use arbitrary PipelineParams
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to determine their contents.
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The specific annotation is Rok-specific, but the use of annotations in
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such way is widespread in storage systems integrated with K8s.
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"""
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import kfp.dsl as dsl
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@dsl.pipeline(
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name="VolumeSnapshotOp RokURL",
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description="The fifth example of the design doc.")
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def volume_snapshotop_rokurl(rok_url):
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vop1 = dsl.VolumeOp(
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name="create_volume_1",
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resource_name="vol1",
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size="1Gi",
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annotations={"rok/origin": rok_url},
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modes=dsl.VOLUME_MODE_RWM)
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step1 = dsl.ContainerOp(
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name="step1_concat",
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image="library/bash:4.4.23",
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command=["sh", "-c"],
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arguments=["cat /data/file*| gzip -c >/data/full.gz"],
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pvolumes={"/data": vop1.volume})
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step1_snap = dsl.VolumeSnapshotOp(
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name="create_snapshot_1", resource_name="snap1", volume=step1.pvolume)
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vop2 = dsl.VolumeOp(
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name="create_volume_2",
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resource_name="vol2",
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data_source=step1_snap.snapshot,
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size=step1_snap.outputs["size"])
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step2 = dsl.ContainerOp(
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name="step2_gunzip",
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image="library/bash:4.4.23",
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command=["gunzip", "-k", "/data/full.gz"],
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pvolumes={"/data": vop2.volume})
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step2_snap = dsl.VolumeSnapshotOp(
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name="create_snapshot_2", resource_name="snap2", volume=step2.pvolume)
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vop3 = dsl.VolumeOp(
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name="create_volume_3",
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resource_name="vol3",
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data_source=step2_snap.snapshot,
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size=step2_snap.outputs["size"])
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step3 = dsl.ContainerOp(
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name="step3_output",
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image="library/bash:4.4.23",
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command=["cat", "/data/full"],
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pvolumes={"/data": vop3.volume})
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if __name__ == "__main__":
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import kfp.compiler as compiler
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compiler.Compiler().compile(volume_snapshotop_rokurl, __file__ + ".tar.gz")
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