catalog/task/curl/0.1

curl

This task performs curl operation to transfer data from internet .

Install the Task

kubectl apply -f https://raw.githubusercontent.com/tektoncd/catalog/main/task/curl/0.1/curl.yaml

Parameters

• options: The arguments to pass to curl CLI. default: [""]
• url: The url we want to download file from, required field.
• curl-image: The curl docker image to be used. Defaults to curlimages/curl.

Platforms

The Task can be run on linux/amd64, linux/s390x, linux/arm64 and linux/ppc64le platforms.

Usage

Running the Task

Viewing request headers and connection details

You can invoke curl -i url to get request header from specified url:

Create a file, curl-header-run.yaml:

apiVersion: tekton.dev/v1beta1
kind: TaskRun
metadata:
  name: curl-header-run
spec:
  params:
    - name: url
      value: "www.google.com"
    - name: options
      value:
       - "-i"
  taskRef:
    name: curl

Run it with kubectl apply -f curl-header-run.yaml

When this runs, it will print logs containing only headers of the response

View full response from request to specified url

You can invoke curl url to get a full response from specified url:

Create a file, curl-reponse-run.yaml:

apiVersion: tekton.dev/v1beta1
kind: TaskRun
metadata:
  name: curl-response-run
spec:
  params:
    - name: url
      value: "www.google.com"
  taskRef:
    name: curl

Run it with kubectl apply -f curl-response-run.yaml

When this runs, it will print logs containing full response fields of the request

Use a different version of curl image

You can invoke curl url to get a full response from specified url while specifying a different image in taskrun:

Create a file, curl-diffimage-run.yaml:

apiVersion: tekton.dev/v1beta1
kind: TaskRun
metadata:
  name: curl-diffimage-run
spec:
  params:
    - name: url
      value: "www.google.com"
    - name: curl-image
      value: "appropriate/curl"
  taskRef:
    name: curl

Run it with kubectl apply -f curl-diffimage-run.yaml

When this runs, it will print logs containing full response fields of the request as in the last example, but now uses a different version of image