add a script to print summary of images used by jobs

experiment/print-job-image-summary.sh

@@ -0,0 +1,70 @@
+#!/usr/bin/env bash
+# Copyright 2021 The Kubernetes Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# a silly script to audit how many jobs are using which images for prow.k8s.io
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+script_root=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd -P)
+repo_root=$(cd ${script_root}/.. && pwd)
+jobs_dir="${1:-${repo_root}/config/jobs}"
+
+# NOTE: assumes ripgrep
+if ! command -v rg >/dev/null; then
+  echo "please install ripgrep" >&2
+  exit 1
+fi
+
+function images() {
+  rg --no-filename --iglob "*.yaml" image: "${jobs_dir}" | sed -e 's|.*image: ||' | sort | cut -d: -f 1
+}
+
+function image_include_exclude() {
+  local include="${1}"
+  local exclude="${2}"
+  local debug="${3:-false}"
+  echo "$(images | grep -Ev "${exclude}" | grep -Ec "${include}") total, $(images | uniq | grep -Ev "${exclude}" | grep -Ec "${include}") unique"
+  if ${debug}; then
+    images | uniq | grep -Ev "${exclude}" | grep -E "${include}"
+  fi
+}
+
+cat <<EOS
+# images used by prowjobs on prow.k8s.io
+- total /                      $(image_include_exclude "" "^$") 
+  - not gcr.io /               $(image_include_exclude "" "gcr\.io")
+    - dockerhub /              $(image_include_exclude "^[^\.]+$|^[^/]+$|docker\.io" "gcr\.io")
+    - quay.io /                $(image_include_exclude "quay\.io" "gcr\.io")
+  - gcr.io /                   $(image_include_exclude "gcr\.io" "^$")
+    - kubernetes.io gcp org
+      - k8s-staging            $(image_include_exclude "gcr\.io/k8s-staging" "^$")
+      - k8s.gcr.io             $(image_include_exclude "k8s\.gcr\.io" "^$")
+    - google.com gcp org
+      - k8s-prow               $(image_include_exclude "gcr\.io/k8s-prow" "^$")
+      - k8s-testimages         $(image_include_exclude "gcr\.io/k8s-testimages" "^$")
+        - kubekins-e2e         $(image_include_exclude "gcr\.io/k8s-testimages/kubekins-e2e" "^$")
+        - image-builder        $(image_include_exclude "gcr\.io/k8s-testimages/image-builder" "^$")
+        - krte                 $(image_include_exclude "gcr\.io/k8s-testimages/krte" "^$")
+        - other                $(image_include_exclude "gcr\.io/k8s-testimages" "kubekins-e2e|krte")
+$(for i in $(image_include_exclude "gcr\.io/k8s-testimages" "kubekins-e2e" true | tail -n+2 | xargs -n1 basename); do printf \
+"          - %-18s %s\n" "${i}" "$(image_include_exclude "gcr\.io/k8s-testimages/${i}" "^$")"; \
+done)
+    - other (unsure which org) $(image_include_exclude "gcr\.io" "^k8s.|k8s-(staging|prow|testimages)")
+$(for i in $(image_include_exclude "gcr\.io" "^k8s.|k8s-(staging|prow|testimages)" true | tail -n+2 | xargs -n1 basename); do printf \
+"      - %-22s %s\n" "${i}" "$(image_include_exclude "gcr\.io/.*/${i}$" "^$")"; \
+done)
+EOS