240 lines
7.2 KiB
Bash
Executable File
240 lines
7.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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# This script can be used to prepare a kind cluster and deploy the app.
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# You can call this script again to redeploy the app.
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# It will also output instructions on how to run the integration.
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set -euo pipefail
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#
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# Helper functions
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#
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function log_note() {
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GREEN='\033[0;32m'
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NC='\033[0m'
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if [[ $COLORTERM =~ ^(truecolor|24bit)$ ]]; then
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echo -e "${GREEN}$*${NC}"
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else
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echo "$*"
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fi
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}
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function log_error() {
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RED='\033[0;31m'
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NC='\033[0m'
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if [[ $COLORTERM =~ ^(truecolor|24bit)$ ]]; then
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echo -e "🙁${RED} Error: $* ${NC}"
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else
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echo ":( Error: $*"
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fi
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}
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function check_dependency() {
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if ! command -v "$1" >/dev/null; then
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log_error "Missing dependency..."
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log_error "$2"
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exit 1
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fi
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}
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#
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# Handle argument parsing and help message
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#
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help=no
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skip_build=no
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while (("$#")); do
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case "$1" in
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-h | --help)
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help=yes
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shift
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;;
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-s | --skip-build)
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skip_build=yes
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shift
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;;
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-*)
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log_error "Unsupported flag $1" >&2
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exit 1
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;;
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*)
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log_error "Unsupported positional arg $1" >&2
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exit 1
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;;
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esac
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done
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if [[ "$help" == "yes" ]]; then
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me="$(basename "${BASH_SOURCE[0]}")"
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log_note "Usage:"
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log_note " $me [flags]"
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log_note
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log_note "Flags:"
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log_note " -h, --help: print this usage"
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log_note " -s, --skip-build: reuse the most recently built image of the app instead of building"
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exit 1
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fi
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pinniped_path="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
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cd "$pinniped_path" || exit 1
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#
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# Check for dependencies
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#
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check_dependency docker "Please install docker. See https://docs.docker.com/get-docker"
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check_dependency kind "Please install kind. e.g. 'brew install kind' for MacOS"
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check_dependency ytt "Please install ytt. e.g. 'brew tap k14s/tap && brew install ytt' for MacOS"
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check_dependency kapp "Please install kapp. e.g. 'brew tap k14s/tap && brew install kapp' for MacOS"
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check_dependency kubectl "Please install kubectl. e.g. 'brew install kubectl' for MacOS"
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check_dependency htpasswd "Please install htpasswd. Should be pre-installed on MacOS. Usually found in 'apache2-utils' package for linux."
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# Require kubectl >= 1.18.x
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if [ "$(kubectl version --client=true --short | cut -d '.' -f 2)" -lt 18 ]; then
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echo "kubectl >= 1.18.x is required, you have $(kubectl version --client=true --short | cut -d ':' -f2)"
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exit 1
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fi
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#
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# Setup kind and build the app
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#
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log_note "Checking for running kind clusters..."
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if ! kind get clusters | grep -q -e '^kind$'; then
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log_note "Creating a kind cluster..."
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kind create cluster
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else
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if ! kubectl cluster-info | grep master | grep -q 127.0.0.1; then
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log_error "Seems like your kubeconfig is not targeting a local cluster."
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log_error "Exiting to avoid accidentally running tests against a real cluster."
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exit 1
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fi
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fi
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registry="docker.io"
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repo="test/build"
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registry_repo="$registry/$repo"
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tag=$(uuidgen) # always a new tag to force K8s to reload the image on redeploy
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if [[ "$skip_build" == "yes" ]]; then
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most_recent_tag=$(docker images "$repo" --format "{{.Tag}}" | head -1)
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if [[ -n "$most_recent_tag" ]]; then
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tag="$most_recent_tag"
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do_build=no
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else
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# Oops, there was no previous build. Need to build anyway.
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do_build=yes
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fi
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else
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do_build=yes
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fi
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registry_repo_tag="${registry_repo}:${tag}"
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if [[ "$do_build" == "yes" ]]; then
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# Rebuild the code
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log_note "Docker building the app..."
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docker build . --tag "$registry_repo_tag"
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fi
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# Load it into the cluster
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log_note "Loading the app's container image into the kind cluster..."
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kind load docker-image "$registry_repo_tag"
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manifest=/tmp/manifest.yaml
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#
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# Deploy local-user-authenticator
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#
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pushd deploy-local-user-authenticator >/dev/null
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log_note "Deploying the local-user-authenticator app to the cluster..."
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ytt --file . \
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--data-value "image_repo=$registry_repo" \
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--data-value "image_tag=$tag" >"$manifest"
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kubectl apply --dry-run=client -f "$manifest" # Validate manifest schema.
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kapp deploy --yes --app local-user-authenticator --diff-changes --file "$manifest"
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popd >/dev/null
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test_username="test-username"
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test_groups="test-group-0,test-group-1"
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set +o pipefail
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test_password="$(cat /dev/urandom | env LC_CTYPE=C tr -dc 'a-z0-9' | fold -w 32 | head -n 1)"
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set -o pipefail
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if [[ ${#test_password} -ne 32 ]]; then
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log_error "Could not create test user's random password"
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exit 1
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fi
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log_note "Creating test user '$test_username'..."
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kubectl create secret generic "$test_username" \
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--namespace local-user-authenticator \
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--from-literal=groups="$test_groups" \
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--from-literal=passwordHash="$(htpasswd -nbBC 10 x "$test_password" | sed -e "s/^x://")" \
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--dry-run=client \
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--output yaml |
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kubectl apply -f -
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app_name="pinniped"
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namespace="integration"
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webhook_url="https://local-user-authenticator.local-user-authenticator.svc/authenticate"
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webhook_ca_bundle="$(kubectl get secret local-user-authenticator-tls-serving-certificate --namespace local-user-authenticator -o 'jsonpath={.data.caCertificate}')"
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discovery_url="$(TERM=dumb kubectl cluster-info | awk '/Kubernetes master/ {print $NF}')"
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#
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# Deploy Pinniped
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#
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pushd deploy >/dev/null
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log_note "Deploying the Pinniped app to the cluster..."
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ytt --file . \
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--data-value "app_name=$app_name" \
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--data-value "namespace=$namespace" \
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--data-value "image_repo=$registry_repo" \
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--data-value "image_tag=$tag" \
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--data-value "discovery_url=$discovery_url" >"$manifest"
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kapp deploy --yes --app "$app_name" --diff-changes --file "$manifest"
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popd >/dev/null
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#
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# Create the environment file
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#
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kind_capabilities_file="$pinniped_path/test/cluster_capabilities/kind.yaml"
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pinniped_cluster_capability_file_content=$(cat "$kind_capabilities_file")
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cat <<EOF >/tmp/integration-test-env
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# The following env vars should be set before running 'go test -v -count 1 ./test/...'
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export PINNIPED_NAMESPACE=${namespace}
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export PINNIPED_APP_NAME=${app_name}
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export PINNIPED_TEST_USER_USERNAME=${test_username}
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export PINNIPED_TEST_USER_GROUPS=${test_groups}
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export PINNIPED_TEST_USER_TOKEN=${test_username}:${test_password}
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export PINNIPED_TEST_WEBHOOK_ENDPOINT=${webhook_url}
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export PINNIPED_TEST_WEBHOOK_CA_BUNDLE=${webhook_ca_bundle}
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read -r -d '' PINNIPED_CLUSTER_CAPABILITY_YAML << PINNIPED_CLUSTER_CAPABILITY_YAML_EOF || true
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${pinniped_cluster_capability_file_content}
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PINNIPED_CLUSTER_CAPABILITY_YAML_EOF
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export PINNIPED_CLUSTER_CAPABILITY_YAML
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EOF
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#
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# Print instructions for next steps
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#
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goland_vars=$(grep -v '^#' /tmp/integration-test-env | grep -E '^export .+=' | sed 's/export //g' | tr '\n' ';')
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log_note
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log_note "🚀 Ready to run integration tests! For example..."
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log_note " cd $pinniped_path"
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log_note ' source /tmp/integration-test-env && go test -v -count 1 ./test/...'
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log_note
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log_note 'Want to run integration tests in GoLand? Copy/paste this "Environment" value for GoLand run configurations:'
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log_note " ${goland_vars}PINNIPED_CLUSTER_CAPABILITY_FILE=${kind_capabilities_file}"
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log_note
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log_note "You can rerun this script to redeploy local production code changes while you are working."
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log_note
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log_note "To delete the deployments, run 'kapp delete -a local-user-authenticator -y && kapp delete -a pinniped -y'."
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log_note "When you're finished, use 'kind delete cluster' to tear down the cluster."
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