Use ko:// in e2e tests to exercices current code 🙃

Right now, some examples are exercicing old version of the code, and
definitely never the changes that would be on the images in a PR.
Using `ko://` instead helps with that (e2e tests are using `ko` to
apply the samples).

This link `.ko.yaml` in test folder to use the proper base image (as
`ko create …` seems to be running from the `test` folder).

Signed-off-by: Vincent Demeester <[email protected]>

examples/v1beta1/pipelineruns/pipelinerun-with-final-tasks.yaml

@@ -57,8 +57,9 @@ spec:
       description: The precise commit SHA that was fetched by this Task
   steps:
     - name: clone
-      image: gcr.io/tekton-releases/github.com/tektoncd/pipeline/cmd/git-init:v0.12.1
+      image: ko://github.com/tektoncd/pipeline/cmd/git-init
       script: |
+        #!/bin/ash
         CHECKOUT_DIR="$(workspaces.output.path)/$(params.subdirectory)"
 
         cleandir() {

examples/v1beta1/pipelineruns/pipelinerun.yaml

@@ -80,8 +80,9 @@ spec:
     description: The precise commit SHA that was fetched by this Task
   steps:
   - name: clone
-    image: gcr.io/tekton-releases/github.com/tektoncd/pipeline/cmd/git-init:v0.11.0
+    image: ko://github.com/tektoncd/pipeline/cmd/git-init
     script: |
+      #!/bin/ash
       CHECKOUT_DIR="$(workspaces.output.path)/$(params.subdirectory)"
       cleandir() {
         # Delete any existing contents of the repo directory if it exists.
@@ -167,9 +168,11 @@ spec:
       runAsUser: 0
   - name: write-digest
     workingDir: $(workspaces.source.path)
-    image: gcr.io/tekton-releases/github.com/tektoncd/pipeline/cmd/imagedigestexporter:v0.11.1
+    image: ko://github.com/tektoncd/pipeline/cmd/imagedigestexporter
     # output of imagedigestexport [{"name":"image","digest":"sha256:eed29..660"}]
     command: ["/ko-app/imagedigestexporter"]
+    securityContext:
+      runAsUser: 0
     args:
     - -images=[{"name":"$(params.IMAGE)","type":"image","url":"$(params.IMAGE)","digest":"","OutputImageDir":"$(workspaces.source.path)/$(params.CONTEXT)/image-digest"}]
     - -terminationMessagePath=$(params.CONTEXT)/image-digested

test/.ko.yaml

@@ -0,0 +1 @@
+../.ko.yaml