Update kustomize to v4

Images in the plumbing repo have been updated to use kustomize v4.
Update the installer script and release pipeline for compatibility
with this version, specifically:
`--load_restrictor none` is replaced by `--load-restrictor LoadRestrictionsNone`
(note the underscore changes to a hyphen too)

docs/dev/README.md

@@ -31,9 +31,7 @@ You will also need the following tools in order to build the Dashboard locally a
 1. [Node.js & npm](https://nodejs.org/): For building and running the frontend locally. See `engines` in [package.json](../../package.json) for versions used. _Node.js 16.x is recommended_
 1. [`ko`](https://github.com/google/ko): For development. `ko` version v0.7.2 or higher is required for `dashboard` to work correctly
 1. [`kubectl`](https://kubernetes.io/docs/tasks/tools/install-kubectl/): For interacting with your kube cluster
-1. [`kustomize`](https://kubernetes-sigs.github.io/kustomize/installation/): For building the Dashboard manifests. v3.5.4 is recommended, the installer script is not currently compatible with v4
-
-   See [here](https://kubectl.docs.kubernetes.io/installation/kustomize/source/) - `GO111MODULE=on go install sigs.k8s.io/kustomize/kustomize/v3` works correctly
+1. [`kustomize`](https://kubectl.docs.kubernetes.io/installation/kustomize/): For building the Dashboard manifests. v4.5.4 is known to work
 
 ## Checkout your fork
 

scripts/installer

@@ -88,7 +88,7 @@ compile() {
   fi
 
   debug "Building overlay $overlay ..."
-  kustomize build --load_restrictor none "$overlay" | ko resolve $KO_RESOLVE_OPTIONS -f - > "$TMP_FILE"
+  kustomize build --load-restrictor LoadRestrictionsNone "$overlay" | ko resolve $KO_RESOLVE_OPTIONS -f - > "$TMP_FILE"
 }
 
 download() {

tekton/publish.yaml

@@ -87,6 +87,8 @@ spec:
         set -ex
 
         go version
+        ko version
+        kustomize version
 
         # Setup docker-auth
         DOCKER_CONFIG=~/.docker
@@ -106,8 +108,8 @@ spec:
         cp ${PROJECT_ROOT}/scripts/installer $OUTPUT_RELEASE_DIR/installer
 
         # build manifests for installer
-        kustomize build overlays/installer/read-write --load_restrictor none | ko resolve --platform=$(params.platforms) --preserve-import-paths -t $(params.versionTag) -f - > $OUTPUT_RELEASE_DIR/installer-tekton-dashboard-release.yaml
-        kustomize build overlays/installer/read-only  --load_restrictor none | ko resolve --platform=$(params.platforms) --preserve-import-paths -t $(params.versionTag) -f - > $OUTPUT_RELEASE_DIR/installer-tekton-dashboard-release-readonly.yaml
+        kustomize build overlays/installer/read-write --load-restrictor LoadRestrictionsNone | ko resolve --platform=$(params.platforms) --preserve-import-paths -t $(params.versionTag) -f - > $OUTPUT_RELEASE_DIR/installer-tekton-dashboard-release.yaml
+        kustomize build overlays/installer/read-only  --load-restrictor LoadRestrictionsNone | ko resolve --platform=$(params.platforms) --preserve-import-paths -t $(params.versionTag) -f - > $OUTPUT_RELEASE_DIR/installer-tekton-dashboard-release-readonly.yaml
 
         # build pre configured manifests
         ./scripts/installer release --debug                         --platform $(params.platforms) --tag $(params.versionTag) --output $OUTPUT_RELEASE_DIR/tekton-dashboard-release.yaml

test/e2e-common.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-# Copyright 2018-2021 The Tekton Authors
+# Copyright 2018-2022 The Tekton Authors
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -31,8 +31,8 @@ function print_diagnostic_info() {
 function install_kustomize() {
   if ! type "kustomize" > /dev/null; then
     echo ">> Installing kustomize"
-    tar=kustomize_v3.6.1_linux_amd64.tar.gz
-    curl -s -O -L https://github.com/kubernetes-sigs/kustomize/releases/download/kustomize/v3.6.1/$tar
+    tar=kustomize_v4.5.4_linux_amd64.tar.gz
+    curl -s -O -L https://github.com/kubernetes-sigs/kustomize/releases/download/kustomize/v4.5.4/$tar
     tar xzf ./$tar
 
     cp ./kustomize /usr/local/bin

test/presubmit-tests.sh

@@ -24,6 +24,9 @@
 # Markdown linting failures don't show up properly in Gubernator resulting
 # in a net-negative contributor experience.
 export DISABLE_MD_LINTING=1
+# GitHub is currently rejecting requests from the link checker with 403 due
+# to missing header. Disable until the tooling is updated to account for this.
+export DISABLE_MD_LINK_CHECK=1
 
 # FIXME(vdemeester) we need to come with something better (like baking common scripts in our image, when we got one)
 go mod vendor || exit 1