https://stackoverflow.com/posts/52152526 - trial 5

cloudbuild.yaml

steps:

- name: gcr.io/cloud-builders/docker
  args: [ 'build', '-t', 'gcr.io/$PROJECT_ID/ubuntu-gcloud', '.' ]

- name: 'gcr.io/cloud-builders/docker'
  args: ['push', 'gcr.io/$PROJECT_ID/ubuntu-gcloud']
  
- name: gcr.io/$PROJECT_ID/ubuntu-gcloud
  args: [ 'bash', 'list-gce.sh' ]

Dockerfile

FROM ubuntu:16.04

RUN apt-get -y update && \
    apt-get -y install gcc python2.7 python-dev python-setuptools wget ca-certificates \
       # These are necessary for add-apt-respository
       software-properties-common python-software-properties && \
    # Install Git >2.0.1
    add-apt-repository ppa:git-core/ppa && \
    apt-get -y update && \
    apt-get -y install git && \
    # Setup Google Cloud SDK (latest)
    mkdir -p /builder && \
    wget -qO- https://dl.google.com/dl/cloudsdk/release/google-cloud-sdk.tar.gz | tar zxv -C /builder && \
    CLOUDSDK_PYTHON="python2.7" /builder/google-cloud-sdk/install.sh --usage-reporting=false \
        --bash-completion=false \
        --disable-installation-options && \
    # install crcmod: https://cloud.google.com/storage/docs/gsutil/addlhelp/CRC32CandInstallingcrcmod
    easy_install -U pip && \
    pip install -U crcmod && \
    # Clean up
    apt-get -y remove gcc python-dev python-setuptools wget && \
    rm -rf /var/lib/apt/lists/* && \
    rm -rf ~/.config/gcloud

# Adding the package path to local
ENV PATH $PATH:/builder/google-cloud-sdk/bin/

list-gce.sh

#!/bin/bash
gcloud --version
gcloud compute instances list > gce-list.txt