Update dockerfiles to support emsdk

dockers/release-docker/Dockerfile

@@ -18,7 +18,8 @@ RUN apt-get update -qqy && apt-get install -qqy \
         lsb-release \
         openssh-client \
         git \
-        gnupg && \
+        gnupg \
+        file && \
     pip3 install -U crcmod && \
     export CLOUD_SDK_REPO="cloud-sdk-$(lsb_release -c -s)" && \
     echo "deb https://packages.cloud.google.com/apt $CLOUD_SDK_REPO main" > /etc/apt/sources.list.d/google-cloud-sdk.list && \
@@ -38,3 +39,6 @@ RUN npm install -g yarn
 
 # Install virtualenv
 RUN pip3 install virtualenv
+
+# Install absl
+RUN pip3 install absl-py

dockers/wasm-docker/Dockerfile

@@ -3,3 +3,19 @@
 
  # Install yarn
  RUN npm install -g yarn
+
+RUN apt-get update -qqy && apt-get install -qqy \
+        curl \
+        gcc \
+        python \
+        python3 \
+        python3-setuptools \
+        python3-dev \
+        python3-pip \
+        apt-transport-https \
+        lsb-release \
+        openssh-client \
+        git \
+        gnupg \
+        file && \
+    pip3 install -U absl-py