Dockerfile

# Copyright 2022 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

FROM gcr.io/cloud-builders/gcloud-slim

# Use ARG so that values can be overriden by user/cloudbuild
ARG TERRAFORM_VERSION=1.5.7

ENV ENV_TERRAFORM_VERSION=$TERRAFORM_VERSION

RUN apt-get update && \
    /builder/google-cloud-sdk/bin/gcloud -q components install alpha beta terraform-tools && \
    apt-get -y install curl jq unzip git ca-certificates gnupg && \
    curl https://releases.hashicorp.com/terraform/${ENV_TERRAFORM_VERSION}/terraform_${ENV_TERRAFORM_VERSION}_linux_amd64.zip --output terraform_${ENV_TERRAFORM_VERSION}_linux_amd64.zip && \
    curl https://releases.hashicorp.com/terraform/${ENV_TERRAFORM_VERSION}/terraform_${ENV_TERRAFORM_VERSION}_SHA256SUMS.sig --output terraform_SHA256SUMS.sig  && \
    curl https://releases.hashicorp.com/terraform/${ENV_TERRAFORM_VERSION}/terraform_${ENV_TERRAFORM_VERSION}_SHA256SUMS --output terraform_SHA256SUMS && \
    curl https://keybase.io/hashicorp/pgp_keys.asc --output pgp_keys.asc && \
    gpg --import pgp_keys.asc && \
    gpg --verify terraform_SHA256SUMS.sig terraform_SHA256SUMS && \
    grep terraform_${ENV_TERRAFORM_VERSION}_linux_amd64.zip terraform_SHA256SUMS | shasum --algorithm 256 --check  && \
    unzip terraform_${ENV_TERRAFORM_VERSION}_linux_amd64.zip -d /builder/terraform && \
    rm -f terraform_${ENV_TERRAFORM_VERSION}_linux_amd64.zip terraform_SHA256SUMS && \
    apt-get --purge -y autoremove && \
    apt-get clean && \
    rm -rf /var/lib/apt/lists/*

ENV PATH=/builder/terraform/:$PATH
ENTRYPOINT ["terraform"]