Adds dockerfile_image_tag.sh tool to tag docker image ids in git.
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Ryan McGuire
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5f833f0012
1 changed files with 118 additions and 0 deletions
118
tools/dockerfile_image_tag.sh
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118
tools/dockerfile_image_tag.sh
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#!/bin/bash
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### Find the latest docker image id and tag it in git
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### Usage:
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### ./dockerfile_image_tag.sh DOCKER_ORG DOCKER_REPO DOCKER_TAG
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### Example:
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### ./dockerfile_image_tag.sh lbry lbrycrd linux-x86_64-production
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exe() { ( echo "## $*"; $*; ) }
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SCRIPT_NAME=$0
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SCRIPT_PATH="$( cd "$(dirname "$0")" && pwd -P )"
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GIT_PATH="$(dirname "$SCRIPT_PATH")"
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GIT_REMOTE=${GIT_REMOTE:-origin}
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if ! which jq > /dev/null; then
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echo "You need to install jq - https://stedolan.github.io/jq/"
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exit 1
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fi
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if ! which curl > /dev/null; then
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echo "You need to install curl"
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exit 1
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fi
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get_docker_tags() {
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# Thank you minamijoyo - https://stackoverflow.com/a/41830007/56560
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if [ "$#" -ne 3 ]; then
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echo "Wrong args: get_docker_tags DOCKER_ORG DOCKER_REPO DOCKER_TAG"
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fi
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ORG=$1
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REPOSITORY=$2
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TARGET_TAG=$3
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echo "Contacting docker hub ..." >&2
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# get authorization token
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TOKEN=$(curl -s "https://auth.docker.io/token?service=registry.docker.io&scope=repository:$ORG/$REPOSITORY:pull" | jq -r .token)
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# find all tags
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ALL_TAGS=$(curl -s -H "Authorization: Bearer $TOKEN" https://index.docker.io/v2/$ORG/$REPOSITORY/tags/list | jq -r .tags[])
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# get image digest for target
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TARGET_DIGEST=$(curl -s -D - -H "Authorization: Bearer $TOKEN" -H "Accept: application/vnd.docker.distribution.manifest.v2+json" https://index.docker.io/v2/$ORG/$REPOSITORY/manifests/$TARGET_TAG | grep Docker-Content-Digest | cut -d ' ' -f 2)
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# for each tags
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for tag in ${ALL_TAGS[@]}; do
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# get image digest
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digest=$( curl -s -D - -H "Authorization: Bearer $TOKEN" -H "Accept: application/vnd.docker.distribution.manifest.v2+json" https://index.docker.io/v2/$ORG/$REPOSITORY/manifests/$tag | grep Docker-Content-Digest | cut -d ' ' -f 2)
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# check digest
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if [[ $TARGET_DIGEST = $digest ]]; then
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# Echo to stderr to be helpful to humans:
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echo "$ORG/$REPOSITORY:$tag $digest" >&2
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# Echo to stdout to use as a script:
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echo $digest
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fi
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done
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}
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check_git_status(){
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# Check if the git stage is clear, on master branch, and up to date with the remote.
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(
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set -e
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echo "Checking git status ..."
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cd $GIT_PATH
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if [[ $(git branch --show-current) != "master" ]]; then
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echo "You are not on the master branch."
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echo "Please change to the master branch before running this."
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exit 1
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fi
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if ! git remote show origin | grep -e "^\W*master .*\(up to date\)" > /dev/null; then
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echo "Your local branch is behind in the history of the remote"
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echo "Please do a git pull before running this."
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exit 1
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fi
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if git status --porcelain | grep -e "^A " > /dev/null; then
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git status
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echo "You have staged files for commit in git: $GIT_PATH"
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echo "Please stash or commit those changes before running this. "
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exit 1
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fi
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)
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}
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main() {
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if [ "$#" -ne 3 ]; then
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echo "run: $SCRIPT_NAME DOCKER_ORG DOCKER_REPO DOCKER_TAG"
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echo "eg : $SCRIPT_NAME lbry lbrycrd linux-x86_64-production"
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exit 1
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fi
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DOCKER_ORG=$1 DOCKER_REPO=$2; DOCKER_TAG=$3
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# Check if the git stage is clear, error if not:
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check_git_status
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# Get the current Docker tag id and sanity check:
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CURRENT_IMAGE_ID=$(get_docker_tags $DOCKER_ORG $DOCKER_REPO $DOCKER_TAG | cut -d ':' -f 2 | sed 's/\r$//g')
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echo "CURRENT_IMAGE_ID=$CURRENT_IMAGE_ID"
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if ! (echo $CURRENT_IMAGE_ID | grep -e "^[A-Fa-f0-9]\{64\}$" > /dev/null); then
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echo "Bad image id: $CURRENT_IMAGE_ID"
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echo -n $CURRENT_IMAGE_ID | hexdump -C
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exit 1
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fi
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# Tag the current git HEAD with the docker image id:
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GIT_COMMIT=$(git -C $GIT_PATH rev-parse HEAD)
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GIT_TAG=$DOCKER_ORG-$DOCKER_REPO-$DOCKER_TAG-$CURRENT_IMAGE_ID
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echo "GIT_COMMIT=$GIT_COMMIT"
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echo "GIT_TAG=$GIT_TAG"
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git -C $GIT_PATH tag $GIT_TAG $GIT_COMMIT && \
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echo "Pushing tags to $GIT_REMOTE ..." && \
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(git push --tags --dry-run 2>&1 | grep "\[new tag\]") && \
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git -C $GIT_PATH push --tags $GIT_REMOTE
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}
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main $*
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