debian-mirror-gitlab/scripts/review_apps/review-apps.sh
2023-04-23 21:23:45 +05:30

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[[ "$TRACE" ]] && set -x
function namespace_exists() {
local namespace="${1}"
local namespace_exists
echoinfo "Checking if ${namespace} exists..." true
kubectl describe namespace "${namespace}" >/dev/null 2>&1
namespace_exists=$?
if [ $namespace_exists -eq 0 ]; then
echoinfo "Namespace ${namespace} found."
else
echoerr "Namespace ${namespace} NOT found."
fi
return $namespace_exists
}
function deploy_exists() {
local namespace="${1}"
local release="${2}"
local deploy_exists
echoinfo "Checking if ${release} exists in the ${namespace} namespace..." true
helm status --namespace "${namespace}" "${release}" >/dev/null 2>&1
deploy_exists=$?
if [ $deploy_exists -eq 0 ]; then
echoinfo "Previous deployment for ${release} found."
else
echoerr "Previous deployment for ${release} NOT found."
fi
return $deploy_exists
}
function previous_deploy_failed() {
local namespace="${1}"
local release="${2}"
echoinfo "Checking for previous deployment of ${release}" true
helm status --namespace "${namespace}" "${release}" >/dev/null 2>&1
local status=$?
# if `status` is `0`, deployment exists, has a status
if [ $status -eq 0 ]; then
echoinfo "Previous deployment found, checking status..."
deployment_status=$(helm status --namespace "${namespace}" "${release}" | grep ^STATUS | cut -d' ' -f2)
echoinfo "Previous deployment state: ${deployment_status}"
if [[ "$deployment_status" == "failed" || "$deployment_status" == "pending-upgrade" || "$deployment_status" == "pending-install" ]]; then
status=0;
else
status=1;
fi
else
echoerr "Previous deployment NOT found."
fi
return $status
}
function delete_helm_release() {
local namespace="${CI_ENVIRONMENT_SLUG}"
local release="${CI_ENVIRONMENT_SLUG}"
if [ -z "${release}" ]; then
echoerr "No release given, aborting the delete!"
return
fi
if deploy_exists "${namespace}" "${release}"; then
helm uninstall --namespace="${namespace}" "${release}"
fi
if namespace_exists "${namespace}"; then
echoinfo "Deleting namespace ${namespace}..." true
kubectl delete namespace "${namespace}" --wait
fi
}
function get_pod() {
local namespace="${CI_ENVIRONMENT_SLUG}"
local release="${CI_ENVIRONMENT_SLUG}"
local app_name="${1}"
local status="${2-Running}"
get_pod_cmd="kubectl get pods --namespace ${namespace} --field-selector=status.phase=${status} -lapp=${app_name},release=${release} --no-headers -o=custom-columns=NAME:.metadata.name | tail -n 1"
echoinfo "Waiting till '${app_name}' pod is ready" true
echoinfo "Running '${get_pod_cmd}'"
local interval=5
local elapsed_seconds=0
local max_seconds=$((2 * 60))
while true; do
local pod_name
pod_name="$(eval "${get_pod_cmd}")"
[[ "${pod_name}" == "" ]] || break
if [[ "${elapsed_seconds}" -gt "${max_seconds}" ]]; then
echoerr "The pod name couldn't be found after ${elapsed_seconds} seconds, aborting."
break
fi
let "elapsed_seconds+=interval"
sleep ${interval}
done
echoinfo "The pod name is '${pod_name}'."
echo "${pod_name}"
}
function run_task() {
local namespace="${CI_ENVIRONMENT_SLUG}"
local ruby_cmd="${1}"
local toolbox_pod=$(get_pod "toolbox")
run_timed_command "kubectl exec --namespace \"${namespace}\" \"${toolbox_pod}\" -- gitlab-rails runner \"${ruby_cmd}\""
}
function disable_sign_ups() {
if [ -z ${REVIEW_APPS_ROOT_TOKEN+x} ]; then
echoerr "In order to protect Review Apps, REVIEW_APPS_ROOT_TOKEN variable must be set"
false
else
true
fi
# Create the root token + Disable sign-ups
local disable_signup_rb="token = User.find_by_username('root').personal_access_tokens.create(scopes: [:api], name: 'Token to disable sign-ups'); token.set_token('${REVIEW_APPS_ROOT_TOKEN}'); begin; token.save!; rescue(ActiveRecord::RecordNotUnique); end; Gitlab::CurrentSettings.current_application_settings.update!(signup_enabled: false)"
if (retry_exponential "run_task \"${disable_signup_rb}\""); then
echoinfo "Sign-ups have been disabled successfully."
else
echoerr "Sign-ups are still enabled!"
false
fi
}
function create_sample_projects() {
local create_sample_projects_rb="root_user = User.find_by_username('root'); 1.times { |i| params = { namespace_id: root_user.namespace.id, name: 'sample-project' + i.to_s, path: 'sample-project' + i.to_s, template_name: 'sample' }; ::Projects::CreateFromTemplateService.new(root_user, params).execute }"
# Queue jobs to create sample projects for root user namespace from sample data project template
retry "run_task \"${create_sample_projects_rb}\""
}
function check_kube_domain() {
echoinfo "Checking that Kube domain exists..." true
if [ -z ${REVIEW_APPS_DOMAIN+x} ]; then
echo "In order to deploy or use Review Apps, REVIEW_APPS_DOMAIN variable must be set"
echo "You can do it in Auto DevOps project settings or defining a variable at group or project level"
echo "You can also manually add it in .gitlab-ci.yml"
false
else
true
fi
}
function ensure_namespace() {
local namespace="${1}"
if ! namespace_exists "${namespace}"; then
echoinfo "Creating namespace ${namespace}..." true
kubectl create namespace "${namespace}"
fi
}
function label_namespace() {
local namespace="${1}"
local label="${2}"
echoinfo "Labeling the ${namespace} namespace with ${label}" true
echoinfo "We should pass the --overwrite option!"
kubectl label --overwrite namespace "${namespace}" "${label}"
}
function create_application_secret() {
local namespace="${CI_ENVIRONMENT_SLUG}"
local release="${CI_ENVIRONMENT_SLUG}"
local initial_root_password_shared_secret
local gitlab_license_shared_secret
initial_root_password_shared_secret=$(kubectl get secret --namespace ${namespace} --no-headers -o=custom-columns=NAME:.metadata.name shared-gitlab-initial-root-password 2> /dev/null | tail -n 1)
if [[ "${initial_root_password_shared_secret}" == "" ]]; then
echoinfo "Creating the 'shared-gitlab-initial-root-password' secret in the ${namespace} namespace..." true
kubectl create secret generic --namespace "${namespace}" \
"shared-gitlab-initial-root-password" \
--from-literal="password=${REVIEW_APPS_ROOT_PASSWORD}" \
--dry-run=client -o json | kubectl apply -f -
else
echoinfo "The 'shared-gitlab-initial-root-password' secret already exists in the ${namespace} namespace."
fi
if [ -z "${REVIEW_APPS_EE_LICENSE_FILE}" ]; then echo "License not found" && return; fi
gitlab_license_shared_secret=$(kubectl get secret --namespace "${namespace}" --no-headers -o=custom-columns=NAME:.metadata.name shared-gitlab-license 2> /dev/null | tail -n 1)
if [[ "${gitlab_license_shared_secret}" == "" ]]; then
echoinfo "Creating the 'shared-gitlab-license' secret in the "${namespace}" namespace..." true
kubectl create secret generic --namespace "${namespace}" \
"shared-gitlab-license" \
--from-file=license="${REVIEW_APPS_EE_LICENSE_FILE}" \
--dry-run=client -o json | kubectl apply -f -
else
echoinfo "The 'shared-gitlab-license' secret already exists in the ${namespace} namespace."
fi
}
function download_chart() {
# If the requirements.lock is present, it means we got everything we need from the cache.
if [[ -f "gitlab-${GITLAB_HELM_CHART_REF}/requirements.lock" ]]; then
echosuccess "Downloading/Building chart dependencies skipped. Using the chart ${gitlab-${GITLAB_HELM_CHART_REF}} local folder'..."
else
echoinfo "Downloading the GitLab chart..." true
curl --location -o gitlab.tar.bz2 "https://gitlab.com/gitlab-org/charts/gitlab/-/archive/${GITLAB_HELM_CHART_REF}/gitlab-${GITLAB_HELM_CHART_REF}.tar.bz2"
tar -xjf gitlab.tar.bz2
echoinfo "Adding the gitlab repo to Helm..."
helm repo add gitlab https://charts.gitlab.io
echoinfo "Building the gitlab chart's dependencies..."
helm dependency build "gitlab-${GITLAB_HELM_CHART_REF}"
fi
}
function base_config_changed() {
if [ -z "${CI_MERGE_REQUEST_IID}" ]; then return; fi
curl "${CI_API_V4_URL}/projects/${CI_MERGE_REQUEST_PROJECT_ID}/merge_requests/${CI_MERGE_REQUEST_IID}/changes" | jq '.changes | any(.old_path == "scripts/review_apps/base-config.yaml")'
}
function parse_gitaly_image_tag() {
local gitaly_version="${GITALY_VERSION}"
# prepend semver version with `v`
if [[ $gitaly_version =~ ^[0-9]+\.[0-9]+\.[0-9]+(-rc[0-9]+)?(-ee)?$ ]]; then
echo "v${gitaly_version}"
else
echo "${gitaly_version}"
fi
}
function deploy() {
local namespace="${CI_ENVIRONMENT_SLUG}"
local release="${CI_ENVIRONMENT_SLUG}"
local base_config_file_ref="${CI_DEFAULT_BRANCH}"
if [[ "$(base_config_changed)" == "true" ]]; then base_config_file_ref="${CI_COMMIT_SHA}"; fi
local base_config_file="https://gitlab.com/gitlab-org/gitlab/raw/${base_config_file_ref}/scripts/review_apps/base-config.yaml"
echoinfo "Deploying ${release} to ${CI_ENVIRONMENT_URL} ..." true
IMAGE_REPOSITORY="registry.gitlab.com/gitlab-org/build/cng-mirror"
gitlab_toolbox_image_repository="${IMAGE_REPOSITORY}/gitlab-toolbox-ee"
gitlab_sidekiq_image_repository="${IMAGE_REPOSITORY}/gitlab-sidekiq-ee"
gitlab_webservice_image_repository="${IMAGE_REPOSITORY}/gitlab-webservice-ee"
gitlab_gitaly_image_repository="${IMAGE_REPOSITORY}/gitaly"
gitaly_image_tag=$(parse_gitaly_image_tag)
gitlab_shell_image_repository="${IMAGE_REPOSITORY}/gitlab-shell"
gitlab_workhorse_image_repository="${IMAGE_REPOSITORY}/gitlab-workhorse-ee"
sentry_enabled="false"
if [ -n "${REVIEW_APPS_SENTRY_DSN}" ]; then
echo "REVIEW_APPS_SENTRY_DSN detected, enabling Sentry"
sentry_enabled="true"
fi
retry "ensure_namespace \"${namespace}\""
retry "label_namespace \"${namespace}\" \"tls=review-apps-tls\"" # label namespace for kubed to sync tls
retry "create_application_secret"
cat > review_apps.values.yml <<EOF
gitlab:
webservice:
extraEnv:
REVIEW_APPS_ENABLED: "true"
REVIEW_APPS_MERGE_REQUEST_IID: "${CI_MERGE_REQUEST_IID}"
EOF
HELM_CMD=$(cat << EOF
helm upgrade \
--namespace="${namespace}" \
--create-namespace \
--install \
--wait \
-f review_apps.values.yml \
--timeout "${HELM_INSTALL_TIMEOUT:-20m}" \
--set ci.branch="${CI_COMMIT_REF_NAME}" \
--set ci.commit.sha="${CI_COMMIT_SHORT_SHA}" \
--set ci.job.url="${CI_JOB_URL}" \
--set ci.pipeline.url="${CI_PIPELINE_URL}" \
--set releaseOverride="${release}" \
--set global.hosts.hostSuffix="${HOST_SUFFIX}" \
--set global.hosts.domain="${REVIEW_APPS_DOMAIN}" \
--set global.appConfig.sentry.enabled="${sentry_enabled}" \
--set global.appConfig.sentry.dsn="${REVIEW_APPS_SENTRY_DSN}" \
--set global.appConfig.sentry.environment="review" \
--set gitlab.migrations.image.repository="${gitlab_toolbox_image_repository}" \
--set gitlab.migrations.image.tag="${CI_COMMIT_SHA}" \
--set gitlab.gitaly.image.repository="${gitlab_gitaly_image_repository}" \
--set gitlab.gitaly.image.tag="${gitaly_image_tag}" \
--set gitlab.gitlab-shell.image.repository="${gitlab_shell_image_repository}" \
--set gitlab.gitlab-shell.image.tag="v${GITLAB_SHELL_VERSION}" \
--set gitlab.sidekiq.annotations.commit="${CI_COMMIT_SHORT_SHA}" \
--set gitlab.sidekiq.image.repository="${gitlab_sidekiq_image_repository}" \
--set gitlab.sidekiq.image.tag="${CI_COMMIT_SHA}" \
--set gitlab.webservice.annotations.commit="${CI_COMMIT_SHORT_SHA}" \
--set gitlab.webservice.image.repository="${gitlab_webservice_image_repository}" \
--set gitlab.webservice.image.tag="${CI_COMMIT_SHA}" \
--set gitlab.webservice.workhorse.image="${gitlab_workhorse_image_repository}" \
--set gitlab.webservice.workhorse.tag="${CI_COMMIT_SHA}" \
--set gitlab.toolbox.image.repository="${gitlab_toolbox_image_repository}" \
--set gitlab.toolbox.image.tag="${CI_COMMIT_SHA}"
EOF
)
if [ -n "${REVIEW_APPS_EE_LICENSE_FILE}" ]; then
HELM_CMD=$(cat << EOF
${HELM_CMD} \
--set global.gitlab.license.secret="shared-gitlab-license"
EOF
)
fi
HELM_CMD=$(cat << EOF
${HELM_CMD} \
--version="${CI_PIPELINE_ID}-${CI_JOB_ID}" \
-f "${base_config_file}" \
-v "${HELM_LOG_VERBOSITY:-1}" \
"${release}" "gitlab-${GITLAB_HELM_CHART_REF}"
EOF
)
# Pretty-print the command for display
echoinfo "Deploying with:"
echo "${HELM_CMD}" | sed 's/ /\n\t/g'
retry "eval \"${HELM_CMD}\""
}
function verify_deploy() {
local deployed="false"
mkdir -p curl-logs/
for i in {1..60}; do # try for 5 minutes
local now=$(date '+%H:%M:%S')
echo "[${now}] Verifying deployment at ${CI_ENVIRONMENT_URL}/users/sign_in"
log_name="curl-logs/${now}.log"
curl --connect-timeout 3 -o "${log_name}" -s "${CI_ENVIRONMENT_URL}/users/sign_in"
if grep "Remember me" "${log_name}" &> /dev/null; then
deployed="true"
break
fi
sleep 5
done
if [[ "${deployed}" == "true" ]]; then
echoinfo "[$(date '+%H:%M:%S')] Review app is deployed to ${CI_ENVIRONMENT_URL}"
else
echoerr "[$(date '+%H:%M:%S')] Review app is not available at ${CI_ENVIRONMENT_URL}: see the logs from cURL above for more details"
return 1
fi
}
# We need to be able to access the GitLab API to run this method.
# Since we are creating a personal access token in `disable_sign_ups`,
# This method should be executed after it.
function verify_commit_sha() {
local verify_success="false"
for i in {1..60}; do # try for 2 minutes in case review-apps containers are restarting
echoinfo "[$(date '+%H:%M:%S')] Checking the correct commit is deployed in the review-app:"
echo "Expected commit sha: ${CI_COMMIT_SHA}"
review_app_revision=$(curl --header "PRIVATE-TOKEN: ${REVIEW_APPS_ROOT_TOKEN}" "${CI_ENVIRONMENT_URL}/api/v4/metadata" | jq -r .revision)
echo "review-app revision: ${review_app_revision}"
if [[ "${CI_COMMIT_SHA}" == "${review_app_revision}"* ]]; then
verify_success="true"
break
fi
sleep 2
done
if [[ "${verify_success}" != "true" ]]; then
echoerr "[$(date '+%H:%M:%S')] Review app revision is not the same as the current commit!"
return 1
fi
return 0
}
function display_deployment_debug() {
local namespace="${CI_ENVIRONMENT_SLUG}"
# Install dig to inspect DNS entries
apk add -q bind-tools
echoinfo "[debugging data] Check review-app webservice DNS entry:"
dig +short $(echo "${CI_ENVIRONMENT_URL}" | sed 's~http[s]*://~~g')
echoinfo "[debugging data] Check external IP for nginx-ingress-controller service (should be THE SAME AS the DNS entry IP above):"
kubectl -n "${namespace}" get svc "${namespace}-nginx-ingress-controller" -o jsonpath='{.status.loadBalancer.ingress[].ip}'
echoinfo "[debugging data] k8s resources:"
kubectl -n "${namespace}" get pods
echoinfo "[debugging data] PostgreSQL logs:"
kubectl -n "${namespace}" logs -l app=postgresql --all-containers
echoinfo "[debugging data] DB migrations logs:"
kubectl -n "${namespace}" logs -l app=migrations --all-containers
echoinfo "[debugging data] Webservice logs:"
kubectl -n "${namespace}" logs -l app=webservice -c webservice
}