feat: Add dev docker build script

Currently just copied from the release docker script. I'm just
checkpointing while I work on other thigns.

.buildkite/dev-docker/run.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+
+set -eo pipefail
+
+source .buildkite/retry.sh
+
+set +x
+RELEASE_VERSION=$(buildkite-agent meta-data get RELEASE_VERSION)
+# login to docker registry
+DOCKER_PASSWORD=$(vault read -field token /secret/ci/elastic-rally/release/docker-hub-rally)
+retry 5 docker login -u elasticmachine -p $DOCKER_PASSWORD
+unset DOCKER_PASSWORD
+
+tmp_dir=$(mktemp --directory)
+pushd "$tmp_dir"
+git clone https://github.com/elastic/rally
+pushd rally
+git checkout "${RELEASE_VERSION}"
+git --no-pager show
+
+set -x
+export TERM=dumb
+export LC_ALL=en_US.UTF-8
+./release-docker.sh "$RELEASE_VERSION"
+
+popd
+popd
+rm -rf "$tmp_dir"
+

catalog-info.yaml

@@ -27,6 +27,7 @@ spec:
     - resource:rally-it-pipeline
     - resource:rally-it-serverless-pipeline
     - resource:rally-releaser-docker-pipeline
+    - resource:rally-dev-docker-build-pipeline
 
 
 # Declare Rally's Buildkite IT pipeline.