DR-1595: Add cherry picking script to ops (#810)

* Add cherry picking script to ops

* Rename variables for clarity

* Add auth with gcr service account

* Unset input values

ops/gcr-cherry-pick.sh

@@ -0,0 +1,50 @@
+#!/bin/sh
+
+# set as either `api` or `ui`
+INPUT_WHICH_REPO=
+
+# set as the version of the code that will be cherry picked, for example 1.3.0
+INPUT_IMG_VERSION=
+
+GCR_DEV_URL="gcr.io/broad-jade-dev/jade-data-repo"
+GCR_PUB_URL="gcr.io/datarepo-public-gcr/jade-data-repo"
+
+GOOGLE_APPLICATION_CREDENTIALS="/tmp/gcr-public-sa.json"
+
+gcr_public_auth() {
+    vault read -format=json secret/dsde/datarepo/dev/gcr-sa-b64 | jq -r .data.key \
+        | base64 --decode | tee ${GOOGLE_APPLICATION_CREDENTIALS}
+    gcloud auth activate-service-account --key-file ${GOOGLE_APPLICATION_CREDENTIALS}
+}
+
+cherry_pick_msg() {
+    printf 'Cherry picking v%s of %s\n  from `%s`\n    to `%s`\n' "$1" "$2" "$3" "$4"
+}
+
+add_ui_url() {
+    GCR_DEV_URL="${GCR_DEV_URL}-ui"
+    GCR_PUB_URL="${GCR_PUB_URL}-ui"
+}
+
+add_version_url() {
+    GCR_DEV_URL="${GCR_DEV_URL}:${INPUT_IMG_VERSION}"
+    GCR_PUB_URL="${GCR_PUB_URL}:${INPUT_IMG_VERSION}"
+}
+
+gcr_cherry_pick() {
+    case ${INPUT_WHICH_REPO} in
+        api)
+            add_version_url ;;
+        ui)
+            add_ui_url ; add_version_url ;;
+        *)
+            echo '${INPUT_WHICH_REPO} must be one of `api` or `ui`'; exit 1 ;;
+    esac
+
+    cherry_pick_msg "${INPUT_IMG_VERSION}" "${INPUT_WHICH_REPO}" "${GCR_DEV_URL}" "${GCR_PUB_URL}"
+
+    gcloud container images add-tag --quiet "${GCR_DEV_URL}" "${GCR_PUB_URL}"
+}
+
+gcr_public_auth
+gcr_cherry_pick