Tkn task working as expected

Makefile

@@ -10,6 +10,8 @@ BATS_FLAGS ?= --print-output-on-failure --show-output-of-passing-tests --verbose
 E2E_TESTS ?= ./test/e2e/*.bats
 E2E_OPENSHIFT_PARAMS_SCRIPT ?= oc version
 
+E2E_TKN_PARAMS_SCRIPT ?= tkn version
+
 # generic arguments employed on most of the targets
 ARGS ?=
 
@@ -47,10 +49,15 @@ test-e2e: install
 .PHONY: prepare-e2e-openshift
 prepare-e2e-openshift:
 	./hack/install-osp.sh $(OSP_VERSION)
+
 .PHONY: test-e2e-openshift
 test-e2e-openshift: prepare-e2e-openshift
 test-e2e-openshift: test-e2e
 
+.PHONY: test-e2e-tkn
+test-e2e-tkn: prepare-e2e-openshift
+test-e2e-tkn: test-e2e
+
 # act runs the github actions workflows, so by default only running the test workflow (integration
 # and end-to-end) to avoid running the release workflow accidently
 act: ARGS = --workflows=./.github/workflows/test.yaml

scripts/tkn-client.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+shopt -s inherit_errexit
+set -eu -o pipefail
+
+source "$(dirname ${BASH_SOURCE[0]})/common.sh"
+source "$(dirname ${BASH_SOURCE[0]})/tkn-common.sh"
+
+[[ "${WORKSPACES_KUBECONFIG_DIR_BOUND}" == "true" ]] && \
+[[ -f ${WORKSPACES_KUBECONFIG_DIR_PATH}/kubeconfig ]] && \
+export KUBECONFIG=${WORKSPACES_KUBECONFIG_DIR_PATH}/kubeconfig
+
+${PARAMS_SCRIPT}

scripts/tkn-common.sh

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+
+declare -rx PARAMS_SCRIPT="${PARAMS_SCRIPT:-}"
+
+declare -rx WORKSPACES_KUBECONFIG_DIR_PATH="${WORKSPACES_KUBECONFIG_DIR_PATH:-}"
+declare -rx WORKSPACES_KUBECONFIG_DIR_BOUND="${WORKSPACES_KUBECONFIG_DIR_BOUND:-}"
+
+#
+# Asserting Environment
+#
+
+exported_or_fail \
+    WORKSPACES_KUBECONFIG_DIR_BOUND \
+    PARAMS_SCRIPT \
+

templates/task-tkn.yaml

@@ -0,0 +1,63 @@
+---
+apiVersion: tekton.dev/v1beta1
+kind: Task
+metadata:
+  name: tkn
+  labels:
+    app.kubernetes.io/version: {{ .Chart.Version }}
+{{- if .Values.annotations }}
+  annotations:
+  {{- .Values.annotations | toYaml | nindent 4 }}
+{{- end }}
+spec:
+  description: >-
+    This task performs operations on Tekton resources using tkn.
+  
+  workspaces:
+    - name: kubeconfig_dir
+      optional: true
+      description: >-
+        An optional workspace that allows you to provide a .kube/config
+        file for tkn to access the cluster. The file should be placed at
+        the root of the Workspace with name kubeconfig.
+
+  params:
+    - name: SCRIPT
+      description: tkn CLI script to execute
+      type: string
+      default: "tkn $@"
+    - name: ARGS
+      type: array
+      description: tkn CLI arguments to run
+      default: ["--help"]
+
+  stepTemplate:
+    env:
+{{- $variables := list
+      "params.SCRIPT"
+      "workspaces.kubeconfig_dir.bound"
+      "workspaces.kubeconfig_dir.path"
+}}
+{{- include "environment" ( list $variables ) | nindent 6 }}
+
+  steps:
+{{- include "load_scripts" ( list . "tkn-" ) | nindent 4 }}
+
+    - name: tkn
+      image: {{ .Values.images.tkn }}
+      env:
+        - name: HOME
+          value: /tekton/home
+      command:
+        - /scripts/tkn-client.sh
+      args: ["$(params.ARGS)"]
+      securityContext:
+        runAsNonRoot: true
+        runAsUser: 65532
+      volumeMounts:
+        - name: scripts-dir
+          mountPath: /scripts
+
+  volumes:
+    - name: scripts-dir
+      emptyDir: {}

test/e2e/resources/tkn-pipeline.yaml

@@ -0,0 +1,34 @@
+---
+apiVersion: tekton.dev/v1beta1
+kind: Pipeline
+metadata:
+  labels:
+    name: task-tkn
+  name: task-tkn
+spec:
+  workspaces:
+    - name: kubeconfig_dir
+      optional: true
+
+  params:
+    - name: SCRIPT
+      type: string
+      default: "tkn $@"
+    - name: ARGS
+      type: array
+      default: ["--help"]
+
+  tasks:
+    - name: task-tkn
+      taskRef:
+        name: task-tkn
+      workspaces:
+        - name: kubeconfig_dir
+          workspace: kubeconfig_dir
+      params:
+        - name: SCRIPT
+          value: "$(params.SCRIPT)"
+        - name: ARGS
+          value: "$(params.ARGS)"
+
+

test/e2e/resources/tkn-pvc.yaml

@@ -0,0 +1,13 @@
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  labels:
+    name: task-tkn
+  name: task-tkn
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 250Mi

test/e2e/tkn-e2e.bats

@@ -0,0 +1,43 @@
+#!/usr/bin/env bats
+
+source ./test/helper/helper.sh
+
+# E2E tests parameters for the test pipeline
+
+# Testing the tkn task,
+@test "[e2e] tkn task" {
+    [ -n "${E2E_TKN_PARAMS_SCRIPT}" ]
+
+    run kubectl delete taskrun --all
+    assert_success
+
+    run tkn task start tkn \
+        --param="SCRIPT=${E2E_TKN_PARAMS_SCRIPT}" \
+	      --use-param-defaults \
+	      --skip-optional-workspace \
+        --showlog >&3
+    assert_success
+
+    # waiting a few seconds before asserting results
+    sleep 15
+
+    # assering the taskrun status, making sure all steps have been successful
+    declare tmpl_file="${BASE_DIR}/go-template.tpl"
+    # the following template is able to extract information from TaskRun and PipelineRun resources,
+    # and as well supports the current Tekton Pipeline version using a different `.task.results`
+    # attribute
+    cat >${tmpl_file} <<EOS
+{{- range .status.conditions }}
+    {{- if and (eq .type "Succeeded") (eq .status "True") }}
+        {{- printf "%s\n" .message -}}
+    {{- end -}}
+{{- end }}
+{{- range .status.results }}
+    {{- printf "%s=%s\n" .name .value -}}
+{{- end -}}
+EOS
+
+    run tkn taskrun describe --last --output=go-template-file --template=${tmpl_file}
+    assert_success
+    assert_output "All Steps have completed executing"
+}

values.yaml

@@ -2,8 +2,9 @@
 images:
   bash: registry.access.redhat.com/ubi8-minimal:latest
   openshiftCli: registry.redhat.io/openshift4/ose-cli@sha256:3d5b31cc3fbf878015e5c3ed1d48379d74b15b77a1a823024a7a2b7cd5e2e86d
+  tkn: registry.redhat.io/openshift-pipelines/pipelines-cli-tkn-rhel8@sha256:72394dfaed68c4b6b490c3c971fb1d9f0139f8656f6672b55b8e02ea98d1298d
 
 annotations:
   tekton.dev/pipelines.minVersion: "0.17.0"
   tekton.dev/tags: cli
-  tekton.dev/displayName: "openshift client"
+  tekton.dev/displayName: "CLI"