Merge pull request #5352 from DataDog/lloeki/reduce-ssi-image-size

Reduce SSI image size

Author: lloeki

.gitlab-ci.yml

@@ -15,8 +15,8 @@ variables:
   REPO_LANG: ruby # ruby is used rather that "rb"
   BUILD_JOB_NAME: save_versions
   REPO_NOTIFICATION_CHANNEL: "#guild-dd-ruby"
-  OCI_PACKAGE_MAX_SIZE_BYTES: 160000000
-  LIB_INJECTION_IMAGE_MAX_SIZE_BYTES: 200000000
+  OCI_PACKAGE_MAX_SIZE_BYTES: 40000000
+  LIB_INJECTION_IMAGE_MAX_SIZE_BYTES: 70000000
 
 default:
   tags: ["arch:amd64"]

.gitlab/prepare-oci-package.sh

@@ -43,3 +43,22 @@ cp -r "../tmp/${ARCH}"/* sources
 ## Add `datadog` gem version information
 
 cp ../tmp/version sources
+
+## Some packages we know are Ruby version-independent; let's store them once only
+
+mkdir -p sources/ruby/common/gems
+
+for package in libdatadog libddwaf; do
+    echo ".. scanning for ${package}"
+
+    ls -1d sources/ruby/*/gems/${package}-* | while read -r orig; do
+        dest="sources/ruby/common/gems/${orig##*/}"
+        if [[ -e "${dest}" ]]; then
+            echo "found ${dest}; removing ${orig}"
+            rm -rf "${orig}"
+        else
+            mv -vf "${orig}" "${dest}"
+        fi
+        ln -srvf "${dest}" "${orig}"
+    done
+done