Add a stack for mobymask-v2-watcher to run peer tests (#222)

* Add mobymask-v2-watcher stack with peer tests

* Rename stack and container

* Avoid building react-peer container

* Improve step for getting container ID

Former-commit-id: 7831078872

app/data/container-build/cerc-react-peer/Dockerfile

@@ -0,0 +1,12 @@
+FROM node:18.15.0-alpine3.16
+
+RUN apk --update --no-cache add make git
+
+WORKDIR /app
+
+COPY . .
+
+RUN echo "Building react-peer" && \
+    yarn && yarn workspace @cerc-io/react-peer build
+
+WORKDIR /app

app/data/container-build/cerc-react-peer/build.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+# Build cerc/react-peer
+
+# See: https://stackoverflow.com/a/246128/1701505
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+
+docker build -t cerc/react-peer:local -f ${SCRIPT_DIR}/Dockerfile ${CERC_REPO_BASE_DIR}/react-peer