Workflow cannot read float

[cr4zy-C]

Summary

When a workflow parameter is a float, workflow parsing fails with the error message:
Failed to parse workflow: error unmarshaling JSON: while decoding JSON: json: cannot unmarshal number 0.2 into Go struct field Parameter.spec.arguments.parameters.value of type int

What happened/what you expected to happen?
Would expect that the workflow is parsed correctly, float into type float.

Diagnostics

What Kubernetes provider are you using?
kube_version: 1.19.3 > running in VMs as local installation

when i run kubectl version :

Client Version: version.Info{Major:"1", Minor:"19", GitVersion:"v1.19.3", GitCommit:"1e11e4a2108024935ecfcb2912226cedeafd99df", GitTreeState:"clean", BuildDate:"2020-10-14T12:50:19Z", GoVersion:"go1.15.2", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"19", GitVersion:"v1.19.3", GitCommit:"1e11e4a2108024935ecfcb2912226cedeafd99df", GitTreeState:"clean", BuildDate:"2020-10-14T12:41:49Z", GoVersion:"go1.15.2", Compiler:"gc", Platform:"linux/amd64"}

What version of Argo Workflows are you running?

argo: v2.11.7
  BuildDate: 2020-11-02T20:59:01Z
  GitCommit: bf3fec176cf6bdf3e23b2cb73ec7d4e3d051ca40
  GitTreeState: clean
  GitTag: v2.11.7
  GoVersion: go1.13.15
  Compiler: gc
  Platform: linux/amd64

apiVersion: argoproj.io/v1alpha
kind: Workflow
metadata:
  generateName: argo-test-workflow-
spec:
  entrypoint: param-test
  arguments:
    parameters:

    # test parameters
    - name: STRING
      value: this is a string
    - name: INTEGER
      value: 5
    - name: FLOAT
      value: 0.2

  templates:
  - name: param-test
    container:
      image: alpine:latest
      command: [/bin/sh, -c]
      args: ["echo 'The parameter STRING is {{workflow.parameters.STRING}}.' && echo 'The parameter INTEGER is {{workflow.parameters.INTEGER}}' && echo 'The parameter FLOAT is {{workflow.parameters.FLOAT}}'"]
      env:
      - name: STRING
        value: "{{workflow.parameters.STRING}}"
      - name: INTEGER
        value: "{{workflow.parameters.INTEGER}}"
      - name: FLOAT
        value: "{{workflow.parameters.FLOAT}}"

Failed to parse workflow: error unmarshaling JSON: while decoding JSON: json: cannot unmarshal number 0.2 into Go struct field Parameter.spec.arguments.parameters.value of type int

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[alexec]

Floats are not allowed in parameter values. It should be a string and can be an int64.

To support 'fload64' we would need to modify Int64OrString to support floats.

Would you like to submit a PR?

[alexec]

Oh - you can quote floats.

[alexec]

    - name: FLOAT
      value: "0.2"

[arghya88]

@alexec I am interested to contribute this.Please assign this to me.