linkerd2/bin/install-pr

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#!/usr/bin/env bash
### Install PR ###
#
# This script takes a GitHub pull request number as an argument and loads the
# images into a local Kubernetes cluster. It then installs the CLI so that it
# can be used to install with any specific configuration needed.
#
# It requires a GitHub personal access token in the $GITHUB_TOKEN environment
# variable.
set -eo pipefail
cluster=''
is_kind=false
is_k3d=false
# Read script flags and arguments
while :
do
case $1 in
-h|--help)
echo "Install Linkerd with the changes made in a GitHub Pull Request.
Usage:
--cluster: The name of the cluster to use
# Install Linkerd into the current cluster
bin/install-pr 1234
# Install Linkerd into the current k3d cluster
bin/install-pr --k3d 1234
# Install Linkerd into the current KinD cluster
bin/install-pr --kind 1234
# Install Linkerd into the 'pr-1234' k3d cluster
bin/install-pr --k3d --cluster pr-1234 1234"
exit 0
;;
--cluster)
cluster=$2
shift
;;
--kind)
is_kind=true
;;
--k3d)
is_k3d=true
;;
-?*)
echo "Error: Unknown option: $1" >&2
exit 1
;;
*)
break
esac
shift
done
pr=$1
if [ -z "$pr" ]; then
echo "Error: ${0##*/} accepts 1 argument
Usage:
${0##*/} ####" >&2
exit 1
fi
if [ -z "$GITHUB_TOKEN" ]; then
# shellcheck disable=SC2016
echo 'Error: Generate a personal access token at https://github.com/settings/tokens and set it in the $GITHUB_TOKEN env var'
exit 1
fi
linkerd2_pulls_url='https://api.github.com/repos/linkerd/linkerd2/pulls'
linkerd2_integration_url='https://api.github.com/repos/linkerd/linkerd2/actions/workflows/integration_tests.yml'
bindir=$( cd "${BASH_SOURCE[0]%/*}" && pwd )
# Get the URL for downloading the artifacts archive
auth="Authorization: token $GITHUB_TOKEN"
branch=$("$bindir"/scurl -H "$auth" "$linkerd2_pulls_url/$pr" | jq -r '.head.ref')
artifacts=$("$bindir"/scurl -H "$auth" "$linkerd2_integration_url/runs?branch=$branch" | jq -r '.workflow_runs[0].artifacts_url')
archive=$("$bindir"/scurl -H "$auth" "$artifacts" | jq -r '.artifacts[0].archive_download_url')
dir=$(mktemp -d -t "linkerd-pr-$pr.XXXXXXXXXX")
# shellcheck source=_docker.sh
. "$bindir"/_docker.sh
cd "$dir" || exit
echo '### Downloading images ###'
"$bindir"/scurl -o archive.zip -H "$auth" "$archive"
unzip -o archive.zip -d image-archives/
echo '### Loading images into Docker ###'
image=$(docker load -i image-archives/cli-bin.tar | sed 's/Loaded image: //')
tag=$(echo "$image" | cut -f 2 -d ":")
for image in "${DOCKER_IMAGES[@]}"
do
docker load -i "image-archives/$image.tar"
done
if [ "$is_kind" = true ] || [ "$is_k3d" = true ]; then
# When importing into k3d or kind, the images must be renamed to use the
# proper registry so that users don't have to change the default install
# output.
docker_rename_registry "$tag" 'ghcr.io/linkerd' 'cr.l5d.io/linkerd'
distro=k3d
if [ "$is_kind" = true ]; then
distro=kind
fi
export TAG=$tag
"$bindir"/image-load --"$distro" --cluster "$cluster"
else
# The images were built with the ghcr.io registry so when pushing to a
# remote cluster for testing, no renaming needs to occur.
for image in "${DOCKER_IMAGES[@]}"
do
docker push "$image"
done
fi
cd -
rm -rf "$dir"
case $(uname) in
Darwin)
platform=darwin
;;
Linux)
platform=linux
;;
*)
platform=windows
;;
esac
# Images created based off PRs use the ghcr.io registry, so override the
# default here when pulling the binary.
export DOCKER_REGISTRY=ghcr.io/linkerd
linkerd=$("$bindir"/docker-pull-binaries "$tag" | awk -v platform=$platform '$0 ~ platform')
echo "
Linkerd CLI available:
$linkerd"