mik-laj commented on issue #18913:
URL: https://github.com/apache/airflow/issues/18913#issuecomment-941317784


   We can still delete a few unnecessary files.
   ```
       && rm -rf "/root/.config/gcloud/logs/" \
       && find "$(python -c 'import sys; print(sys.prefix);')" -regex 
'^.*\(__pycache__\|\.py[co]\)$' -delete
   ```
   
   I created such a Dockerfile while experimenting with size optimization.
   ```
   ARG BASE_AIRFLOW_IMAGE
   FROM ${BASE_AIRFLOW_IMAGE}
   
   SHELL ["/bin/bash", "-o", "pipefail", "-e", "-u", "-x", "-c"]
   
   USER 0
   
   ARG CLOUD_SDK_VERSION=322.0.0
   ENV GCLOUD_HOME=/opt/google-cloud-sdk
   
   ENV PATH="${GCLOUD_HOME}/bin/:${PATH}"
   
   RUN 
DOWNLOAD_URL="https://dl.google.com/dl/cloudsdk/channels/rapid/downloads/google-cloud-sdk-${CLOUD_SDK_VERSION}-linux-x86_64.tar.gz";
 \
       && TMP_DIR="$(mktemp -d)" \
       && curl -fL "${DOWNLOAD_URL}" --output 
"${TMP_DIR}/google-cloud-sdk.tar.gz" \
       && mkdir -p "${GCLOUD_HOME}" \
       && tar xzf "${TMP_DIR}/google-cloud-sdk.tar.gz" -C "${GCLOUD_HOME}" 
--strip-components=1 \
       && "${GCLOUD_HOME}/install.sh" \
          --bash-completion=false \
          --path-update=false \
          --usage-reporting=false \
          --additional-components alpha beta kubectl \
          --quiet \
       && rm -rf "${TMP_DIR}" \
       && rm -rf \
           "${GCLOUD_HOME}/bin/anthoscli" \
           "${GCLOUD_HOME}/.install/.backup" \
       && find "${GCLOUD_HOME}/bin/" -name 'kubectl.*' -delete \
       && find "${GCLOUD_HOME}" -regex '^.*\(__pycache__\|\.py[co]\)$' -delete \
       && rm -rf "/root/.config/gcloud/logs/" \
       && find "$(python -c 'import sys; print(sys.prefix);')" -regex 
'^.*\(__pycache__\|\.py[co]\)$' -delete
   
   USER ${AIRFLOW_UID}
   ```


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