Created module hydro-os-signing

modules/hydro-os-signing/hydro-os-signing.sh

@@ -0,0 +1,72 @@
+#!/usr/bin/env bash
+
+# derived from wayblue repository, modified to work with hydro-os
+
+# Tell build process to exit if there are any errors.
+set -euo pipefail
+
+CONTAINER_DIR="/usr/etc/containers"
+ETC_CONTAINER_DIR="/etc/containers"
+MODULE_DIRECTORY="${MODULE_DIRECTORY:-"/tmp/modules"}"
+IMAGE_NAME_FILE="${IMAGE_NAME//\//_}"
+IMAGE_REGISTRY_TITLE=$(echo "$IMAGE_REGISTRY" | cut -d'/' -f2-)
+
+echo "Setting up container signing in policy.json and cosign.yaml for $IMAGE_NAME"
+echo "Registry to write: $IMAGE_REGISTRY"
+
+if ! [ -d "$CONTAINER_DIR" ]; then
+    mkdir -p "$CONTAINER_DIR"
+fi
+
+if ! [ -d "$ETC_CONTAINER_DIR" ]; then
+    mkdir -p "$ETC_CONTAINER_DIR"
+fi
+
+if ! [ -d $CONTAINER_DIR/registries.d ]; then
+   mkdir -p "$CONTAINER_DIR/registries.d"
+fi
+
+if ! [ -d $ETC_CONTAINER_DIR/registries.d ]; then
+   mkdir -p "$ETC_CONTAINER_DIR/registries.d"
+fi
+
+if ! [ -d "/usr/etc/pki/containers" ]; then
+    mkdir -p "/usr/etc/pki/containers"
+fi
+
+if ! [ -d "/etc/pki/containers" ]; then
+    mkdir -p "/etc/pki/containers"
+fi
+
+cp "$MODULE_DIRECTORY/hydro-os-signing/policy.json" $CONTAINER_DIR/policy.json
+cp "$MODULE_DIRECTORY/hydro-os-signing/policy.json" $ETC_CONTAINER_DIR/policy.json
+
+# covering our bases here since /usr/etc is technically unsupported, reevaluate once bootc is the primary deployment tool
+cp "/etc/pki/containers/$IMAGE_NAME.pub" "/usr/etc/pki/containers/$IMAGE_REGISTRY_TITLE.pub"
+cp "/etc/pki/containers/$IMAGE_NAME.pub" "/etc/pki/containers/$IMAGE_REGISTRY_TITLE.pub"
+rm "/etc/pki/containers/$IMAGE_NAME.pub"
+
+POLICY_FILE="$CONTAINER_DIR/policy.json"
+
+jq --arg image_registry "${IMAGE_REGISTRY}" \
+   --arg image_registry_title "${IMAGE_REGISTRY_TITLE}" \
+   '.transports.docker |= 
+    { $image_registry: [
+        {
+            "type": "sigstoreSigned",
+            "keyPath": ("/usr/etc/pki/containers/" + $image_registry_title + ".pub"),
+            "signedIdentity": {
+                "type": "matchRepository"
+            }
+        }
+    ] } + .' "${POLICY_FILE}" > POLICY.tmp
+    
+# covering our bases here since /usr/etc is technically unsupported, reevaluate once bootc is the primary deployment tool
+cp POLICY.tmp /usr/etc/containers/policy.json
+cp POLICY.tmp /etc/containers/policy.json
+rm POLICY.tmp
+
+sed -i "s git.hydrosaber.com/IMAGENAME $IMAGE_REGISTRY g" "$MODULE_DIRECTORY/hydro-os-signing/registry-config.yaml"
+cp "$MODULE_DIRECTORY/hydro-os-signing/registry-config.yaml" "$CONTAINER_DIR/registries.d/$IMAGE_REGISTRY_TITLE.yaml"
+cp "$MODULE_DIRECTORY/hydro-os-signing/registry-config.yaml" "$ETC_CONTAINER_DIR/registries.d/$IMAGE_REGISTRY_TITLE.yaml"
+rm "$MODULE_DIRECTORY/hydro-os-signing/registry-config.yaml"