1#!/bin/bash
2# Copyright 2016 gRPC authors.
3#
4# Licensed under the Apache License, Version 2.0 (the "License");
5# you may not use this file except in compliance with the License.
6# You may obtain a copy of the License at
7#
8#     http://www.apache.org/licenses/LICENSE-2.0
9#
10# Unless required by applicable law or agreed to in writing, software
11# distributed under the License is distributed on an "AS IS" BASIS,
12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13# See the License for the specific language governing permissions and
14# limitations under the License.
15#
16# Builds selected testing docker images and pushes them to artifact registry.
17# NOTE: These images are not intended to be used by gRPC end users,
18# they simply provide an easily reproducible environment for running gRPC
19# tests.
20
21set -e
22
23cd $(dirname $0)/../..
24git_root=$(pwd)
25cd -
26
27# Recognized env variables that can be used as params.
28#  LOCAL_ONLY_MODE: if set (e.g. LOCAL_ONLY_MODE=true), script will only operate locally and it won't query artifact registry and won't upload to it.
29#  CHECK_MODE: if set, the script will check that all the .current_version files are up-to-date (used by sanity tests).
30#  SKIP_UPLOAD: if set, script won't push docker images it built to artifact registry.
31#  TRANSFER_FROM_DOCKERHUB: if set, will attempt to grab docker images missing in artifact registry from dockerhub instead of building them from scratch locally.
32
33# How to configure docker before running this script for the first time:
34# Configure docker:
35# $ gcloud auth configure-docker us-docker.pkg.dev
36# Login with gcloud:
37# $ gcloud auth login
38
39# Various check that the environment is setup correctly.
40# The enviroment checks are skipped when running as a sanity check on CI.
41if [ "${CHECK_MODE}" == "" ]
42then
43  # Check that docker is installed and sudoless docker works.
44  docker run --rm -it debian:11 bash -c 'echo "sudoless docker run works!"' || \
45      (echo "Error: docker not installed or sudoless docker doesn't work?" && exit 1)
46
47  # Some of the images we build are for arm64 architecture and the easiest
48  # way of allowing them to build locally on x64 machine is to use
49  # qemu binfmt-misc hook that automatically runs arm64 binaries under
50  # an emulator.
51  # Perform a check that "qemu-user-static" with binfmt-misc hook
52  # is installed, to give an early warning (otherwise building arm64 images won't work)
53  docker run --rm -it arm64v8/debian:11 bash -c 'echo "able to run arm64 docker images with an emulator!"' || \
54      (echo "Error: can't run arm64 images under an emulator. Have you run 'sudo apt-get install qemu-user-static'?" && exit 1)
55fi
56
57ARTIFACT_REGISTRY_PREFIX=us-docker.pkg.dev/grpc-testing/testing-images-public
58
59# all dockerfile definitions we use for testing and for which we push an image to the registry
60ALL_DOCKERFILE_DIRS=(
61  tools/dockerfile/test/*
62  tools/dockerfile/grpc_artifact_*
63  tools/dockerfile/interoptest/*
64  tools/dockerfile/distribtest/*
65  third_party/rake-compiler-dock/*
66)
67
68CHECK_FAILED=""
69
70for DOCKERFILE_DIR in "${ALL_DOCKERFILE_DIRS[@]}"
71do
72  # Generate image name based on Dockerfile checksum. That works well as long
73  # as can count on dockerfiles being written in a way that changing the logical
74  # contents of the docker image always changes the SHA (e.g. using "ADD file"
75  # cmd in the dockerfile in not ok as contents of the added file will not be
76  # reflected in the SHA).
77  DOCKER_IMAGE_NAME=$(basename $DOCKERFILE_DIR)
78
79  if [ ! -e "$DOCKERFILE_DIR/Dockerfile" ]; then
80    continue
81  else
82    DOCKER_IMAGE_TAG=$(sha1sum $DOCKERFILE_DIR/Dockerfile | cut -f1 -d\ )
83  fi
84
85  echo "Visiting ${DOCKERFILE_DIR}"
86
87  if [ "${LOCAL_ONLY_MODE}" == "" ]
88  then
89    DOCKER_IMAGE_DIGEST_REMOTE=$(gcloud artifacts docker images describe "${ARTIFACT_REGISTRY_PREFIX}/${DOCKER_IMAGE_NAME}:${DOCKER_IMAGE_TAG}" --format=json | jq -r '.image_summary.digest')
90
91    if [ "${DOCKER_IMAGE_DIGEST_REMOTE}" != "" ]
92    then
93      # skip building the image if it already exists in the destination registry
94      echo "Docker image ${DOCKER_IMAGE_NAME} already exists in artifact registry at the right version (tag ${DOCKER_IMAGE_TAG})."
95
96      VERSION_FILE_OUT_OF_DATE=""
97      grep "^${ARTIFACT_REGISTRY_PREFIX}/${DOCKER_IMAGE_NAME}:${DOCKER_IMAGE_TAG}@${DOCKER_IMAGE_DIGEST_REMOTE}$" ${DOCKERFILE_DIR}.current_version >/dev/null || VERSION_FILE_OUT_OF_DATE="true"
98
99      if [ "${VERSION_FILE_OUT_OF_DATE}" == "" ]
100      then
101        echo "Version file for ${DOCKER_IMAGE_NAME} is in sync with info from artifact registry."
102        continue
103      fi
104
105      if [ "${CHECK_MODE}" != "" ]
106      then
107        echo "CHECK FAILED: Version file ${DOCKERFILE_DIR}.current_version is not in sync with info from artifact registry."
108        CHECK_FAILED=true
109        continue
110      fi
111
112      # update info on what we consider to be the current version of the docker image (which will be used to run tests)
113      # we consider the sha256 image digest info from the artifact registry to be the canonical one
114      echo -n "${ARTIFACT_REGISTRY_PREFIX}/${DOCKER_IMAGE_NAME}:${DOCKER_IMAGE_TAG}@${DOCKER_IMAGE_DIGEST_REMOTE}" >${DOCKERFILE_DIR}.current_version
115
116      continue
117    fi
118
119    if [ "${CHECK_MODE}" != "" ]
120    then
121      echo "CHECK FAILED: Docker image ${DOCKER_IMAGE_NAME} not found in artifact registry."
122      CHECK_FAILED=true
123      continue
124    fi
125
126  else
127    echo "Skipped querying artifact registry (running in local-only mode)."
128  fi
129
130  # if the .current_version file doesn't exist or it doesn't contain the right SHA checksum,
131  # it is out of date and we will need to rebuild the docker image locally.
132  LOCAL_BUILD_REQUIRED=""
133  grep "^${ARTIFACT_REGISTRY_PREFIX}/${DOCKER_IMAGE_NAME}:${DOCKER_IMAGE_TAG}@sha256:.*" ${DOCKERFILE_DIR}.current_version >/dev/null || LOCAL_BUILD_REQUIRED=true
134
135  if [ "${LOCAL_BUILD_REQUIRED}" == "" ]
136  then
137    echo "Dockerfile for ${DOCKER_IMAGE_NAME} hasn't changed. Will skip 'docker build'."
138    continue
139  fi
140
141  if [ "${CHECK_MODE}" != "" ]
142  then
143    echo "CHECK FAILED: Dockerfile for ${DOCKER_IMAGE_NAME} has changed, but the ${DOCKERFILE_DIR}.current_version is not up to date."
144    CHECK_FAILED=true
145    continue
146  fi
147
148  if [ "${TRANSFER_FROM_DOCKERHUB}" == "" ]
149  then
150    echo "Running 'docker build' for ${DOCKER_IMAGE_NAME}"
151    echo "=========="
152    docker build -t ${ARTIFACT_REGISTRY_PREFIX}/${DOCKER_IMAGE_NAME}:${DOCKER_IMAGE_TAG} ${DOCKERFILE_DIR}
153    echo "=========="
154  else
155    # TRANSFER_FROM_DOCKERHUB is a temporary feature that pulls the corresponding image from dockerhub instead
156    # of building it from scratch locally. This should simplify the dockerhub -> artifact registry migration.
157    # TODO(jtattermusch): remove this feature in Q1 2023.
158    DOCKERHUB_ORGANIZATION=grpctesting
159    # pull image from dockerhub
160    docker pull ${DOCKERHUB_ORGANIZATION}/${DOCKER_IMAGE_NAME}:${DOCKER_IMAGE_TAG}
161    # add the artifact registry tag
162    docker tag ${DOCKERHUB_ORGANIZATION}/${DOCKER_IMAGE_NAME}:${DOCKER_IMAGE_TAG} ${ARTIFACT_REGISTRY_PREFIX}/${DOCKER_IMAGE_NAME}:${DOCKER_IMAGE_TAG}
163  fi
164
165  DOCKER_IMAGE_DIGEST_LOCAL=$(docker image inspect "${ARTIFACT_REGISTRY_PREFIX}/${DOCKER_IMAGE_NAME}:${DOCKER_IMAGE_TAG}" | jq -e -r '.[0].Id')
166
167  # update info on what we consider to be the current version of the docker image (which will be used to run tests)
168  echo -n "${ARTIFACT_REGISTRY_PREFIX}/${DOCKER_IMAGE_NAME}:${DOCKER_IMAGE_TAG}@${DOCKER_IMAGE_DIGEST_LOCAL}" >${DOCKERFILE_DIR}.current_version
169
170  if [ "${SKIP_UPLOAD}" == "" ] && [ "${LOCAL_ONLY_MODE}" == "" ]
171  then
172    docker push ${ARTIFACT_REGISTRY_PREFIX}/${DOCKER_IMAGE_NAME}:${DOCKER_IMAGE_TAG}
173  fi
174done
175
176if [ "${CHECK_MODE}" != "" ]
177then
178  # TODO(jtattermusch): check there are no extra current_version files (for which there isn't a corresponding Dockerfile)
179  true
180fi
181
182if [ "${CHECK_FAILED}" != "" ]
183then
184  echo "ERROR: Some checks have failed."
185  exit 1
186fi
187
188echo "All done."
189