Add basic values translation script

blog/2-0-breaking-changes.md

 ---
-revision_date: Last edited April 13, 2023
+revision_date: Last edited April 14, 2023
 tags:
   - blog
 ---
@@ -19,7 +19,7 @@ As mentioned in the first post, a number of values keys will be changing in orde
 - `mattermostoperator` -> `mattermostOperator`
 - `nexus` -> `nexusRepositoryManager`
 
-Note that your upgrade to 2.0 will fail if you do not modify your values as seen above. Big Bang is now maintaining a [values schema](https://helm.sh/docs/topics/charts/#schema-files) to enforce strict adherence to the allowed/required keys within Big Bang. For reference Big Bang's values schema is located [here](https://repo1.dso.mil/big-bang/bigbang/-/blob/master/chart/values.schema.json).
+Note that your upgrade to 2.0 will fail if you do not modify your values as seen above. Big Bang is now maintaining a [values schema](https://helm.sh/docs/topics/charts/#schema-files) to enforce strict adherence to the allowed/required keys within Big Bang. For reference Big Bang's values schema is located [here](https://repo1.dso.mil/big-bang/bigbang/-/blob/master/chart/values.schema.json). You can also leverage the script in `/scripts/values-translate-2-0.sh <values file path>` to perform these translations for you (note that is is a relatively simple script and may not work for your use case).
 
 ## Namespace Changes
 

scripts/values-translate-2-0.sh

+values_file=$1
+
+if [[ -z $values_file ]]; then
+  echo "This script requires one parameter, the path to your values file. Rerun the script with that parameter, ex: './scripts/values-translate-2-0.sh my-values-file.yaml'."
+  exit 1
+fi
+
+if [[ ! ( -f "$values_file" ) ]]; then
+  echo "Values file not found, verify that the correct path was provided for your values."
+  exit 1
+fi
+
+sed_gsed="sed"
+# Verify sed version if on macOS
+if [[ "$(uname -s)" == "Darwin" ]]; then
+  if [[ ! $(command -v gsed >/dev/null 2>&1) ]]; then
+    sed_gsed="gsed"
+  else
+    echo "The 'gnu-sed' tool is not installed, but if required when running on macOS. 'gnu-sed' can be installed with 'brew install gnu-sed'."
+    exit 1
+  fi
+fi
+
+if ! command -v $sed_gsed >/dev/null 2>&1; then
+  echo "The 'sed' tool is required to run this script. Please install 'sed' then re-run this script."
+  exit 1
+fi
+
+# Update core packages
+$sed_gsed -i 's/^istiooperator:$/istioOperator:/' $values_file
+$sed_gsed -i 's/^kyvernopolicies:$/kyvernoPolicies:/' $values_file
+$sed_gsed -i 's/^kyvernoreporter:$/kyvernoReporter:/' $values_file
+$sed_gsed -i 's/^logging:$/elasticsearchKibana:/' $values_file
+$sed_gsed -i 's/^eckoperator:$/eckOperator:/' $values_file
+# Update addon packages
+$sed_gsed -i 's/^\(\s*\)mattermostoperator:$/\1mattermostOperator:/' $values_file
+$sed_gsed -i 's/^\(\s*\)nexus:$/\1nexusRepositoryManager:/' $values_file
+
+echo "Values translation completed successfully - validate that the below translations were completed as expected:"
+cat << EOF
+  Core Packages:
+    istiooperator -> istioOperator
+    kyvernopolicies -> kyvernoPolicies
+    kyvernoreporter -> kyvernoReporter
+    logging -> elasticsearchKibana
+    eckoperator -> eckOperator
+  Addon Packages:
+    mattermostoperator -> mattermostOperator
+    nexus -> nexusRepositoryManager
+EOF
+echo "It is important to validate these and confirm that no other keys were affected."