feat(argo-workflows): script to update workflows CRDs (#3606)

* feat(argo-workflows): script to update workflows CRDs

Signed-off-by: Alan Clucas <[email protected]>

* chore: dynamically collect list of CRDs

Signed-off-by: Alan Clucas <[email protected]>

---------

Signed-off-by: Alan Clucas <[email protected]>
Co-authored-by: Tim Collins <[email protected]>

Author: Joibel

scripts/update-argo-workflows-crds.sh

@@ -0,0 +1,129 @@
+#!/usr/bin/env bash
+#
+# Update Argo Workflows CRDs from upstream
+#
+# Usage: ./scripts/update-argo-workflows-crds.sh <version>
+# Example: ./scripts/update-argo-workflows-crds.sh v3.7.4
+#
+
+set -euo pipefail
+
+if ! command -v jq &> /dev/null; then
+    echo "Error: jq is required but not installed"
+    exit 1
+fi
+
+VERSION="${1:-}"
+
+if [[ -z "$VERSION" ]]; then
+    echo "Usage: $0 <version>"
+    echo "Example: $0 v3.7.4"
+    exit 1
+fi
+
+# Ensure version starts with 'v'
+if [[ ! "$VERSION" =~ ^v ]]; then
+    VERSION="v${VERSION}"
+fi
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
+CRD_DIR="$REPO_ROOT/charts/argo-workflows/files/crds"
+
+UPSTREAM_BASE_URL="https://raw.githubusercontent.com/argoproj/argo-workflows/${VERSION}/manifests/base/crds"
+
+# Function to get CRD file list from GitHub API
+get_crd_files() {
+    local type="$1"
+    local api_url="https://api.github.com/repos/argoproj/argo-workflows/contents/manifests/base/crds/${type}?ref=${VERSION}"
+
+    curl -sSfL "$api_url" | jq -r '.[] | select(.name | test("^argoproj\\.io_.*\\.yaml$")) | .name'
+}
+
+# Function to process a CRD file:
+# - Remove the "auto-generated" comment line
+# - Add helm.sh/resource-policy annotation
+# - Ensure 'name:' comes before 'annotations:' in metadata
+process_crd() {
+    local file="$1"
+    local tmp_file="${file}.tmp"
+
+    # Remove the auto-generated comment line if present
+    sed -i '/^# This is an auto-generated file/d' "$file"
+
+    awk '
+    BEGIN { in_metadata = 0; name_line = ""; has_annotations = 0 }
+    /^metadata:$/ {
+        in_metadata = 1
+        print
+        next
+    }
+    in_metadata && /^  name:/ {
+        name_line = $0
+        next
+    }
+    in_metadata && /^[^ ]/ {
+        # End of metadata block
+        in_metadata = 0
+        # If we still have a name_line, annotations block was not present
+        if (name_line != "") {
+            print name_line
+            print "  annotations:"
+            print "    helm.sh/resource-policy: keep"
+            name_line = ""
+        }
+    }
+    { print }
+    ' "$file" > "$tmp_file" && mv "$tmp_file" "$file"
+}
+
+# Function to download and process CRDs for a specific type (full or minimal)
+download_crds() {
+    local type="$1"
+    local dest_dir="$CRD_DIR/$type"
+
+    echo "Downloading $type CRDs for Argo Workflows $VERSION..."
+
+    mkdir -p "$dest_dir"
+
+    # Clean existing CRD files before downloading in case upstream have deleted a CRD
+    rm -f "$dest_dir"/*.yaml
+
+    # Get file list dynamically from GitHub API
+    local crd_files
+    crd_files=$(get_crd_files "$type")
+
+    if [[ -z "$crd_files" ]]; then
+        echo "  Error: Failed to fetch CRD file list for $type"
+        return 1
+    fi
+
+    while IFS= read -r crd_file; do
+        local url="$UPSTREAM_BASE_URL/$type/$crd_file"
+        local dest="$dest_dir/$crd_file"
+
+        echo "  Downloading $crd_file..."
+        if ! curl -sSfL "$url" -o "$dest"; then
+            echo "    Warning: Failed to download $crd_file"
+            rm -f "$dest"
+            continue
+        fi
+
+        process_crd "$dest"
+        echo "    Downloaded and processed $crd_file"
+    done <<< "$crd_files"
+}
+
+echo "Updating Argo Workflows CRDs to $VERSION"
+echo "========================================="
+
+# Download both full and minimal CRDs
+download_crds "full"
+download_crds "minimal"
+
+echo ""
+echo "Done! CRDs updated to $VERSION"
+echo ""
+echo "Files updated in:"
+echo "  - $CRD_DIR/full/"
+echo "  - $CRD_DIR/minimal/"