debian-mirror-gitlab/scripts/review_apps/review-apps.sh
2018-12-05 23:21:45 +05:30

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[[ "$TRACE" ]] && set -x
export TILLER_NAMESPACE="$KUBE_NAMESPACE"
function check_kube_domain() {
if [ -z ${REVIEW_APPS_DOMAIN+x} ]; then
echo "In order to deploy or use Review Apps, REVIEW_APPS_DOMAIN variable must be set"
echo "You can do it in Auto DevOps project settings or defining a variable at group or project level"
echo "You can also manually add it in .gitlab-ci.yml"
false
else
true
fi
}
function download_gitlab_chart() {
curl -o gitlab.tar.bz2 https://gitlab.com/charts/gitlab/-/archive/$GITLAB_HELM_CHART_REF/gitlab-$GITLAB_HELM_CHART_REF.tar.bz2
tar -xjf gitlab.tar.bz2
cd gitlab-$GITLAB_HELM_CHART_REF
helm init --client-only
helm repo add gitlab https://charts.gitlab.io
helm dependency update
helm dependency build
}
function ensure_namespace() {
kubectl describe namespace "$KUBE_NAMESPACE" || kubectl create namespace "$KUBE_NAMESPACE"
}
function install_tiller() {
echo "Checking Tiller..."
helm init --upgrade
kubectl rollout status -n "$TILLER_NAMESPACE" -w "deployment/tiller-deploy"
if ! helm version --debug; then
echo "Failed to init Tiller."
return 1
fi
echo ""
}
function create_secret() {
echo "Create secret..."
kubectl create secret generic -n "$KUBE_NAMESPACE" \
$CI_ENVIRONMENT_SLUG-gitlab-initial-root-password \
--from-literal=password=$REVIEW_APPS_ROOT_PASSWORD \
--dry-run -o json | kubectl apply -f -
}
function previousDeployFailed() {
set +e
echo "Checking for previous deployment of $CI_ENVIRONMENT_SLUG"
deployment_status=$(helm status $CI_ENVIRONMENT_SLUG >/dev/null 2>&1)
status=$?
# if `status` is `0`, deployment exists, has a status
if [ $status -eq 0 ]; then
echo "Previous deployment found, checking status"
deployment_status=$(helm status $CI_ENVIRONMENT_SLUG | grep ^STATUS | cut -d' ' -f2)
echo "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
echo "Previous deployment NOT found."
fi
set -e
return $status
}
function deploy() {
track="${1-stable}"
name="$CI_ENVIRONMENT_SLUG"
if [[ "$track" != "stable" ]]; then
name="$name-$track"
fi
replicas="1"
service_enabled="false"
postgres_enabled="$POSTGRES_ENABLED"
gitlab_migrations_image_repository="registry.gitlab.com/gitlab-org/build/cng-mirror/gitlab-rails-ce"
gitlab_sidekiq_image_repository="registry.gitlab.com/gitlab-org/build/cng-mirror/gitlab-sidekiq-ce"
gitlab_unicorn_image_repository="registry.gitlab.com/gitlab-org/build/cng-mirror/gitlab-unicorn-ce"
gitlab_gitaly_image_repository="registry.gitlab.com/gitlab-org/build/cng-mirror/gitaly"
gitlab_shell_image_repository="registry.gitlab.com/gitlab-org/build/cng-mirror/gitlab-shell"
gitlab_workhorse_image_repository="registry.gitlab.com/gitlab-org/build/cng-mirror/gitlab-workhorse-ce"
if [[ "$CI_PROJECT_NAME" == "gitlab-ee" ]]; then
gitlab_migrations_image_repository="registry.gitlab.com/gitlab-org/build/cng-mirror/gitlab-rails-ee"
gitlab_sidekiq_image_repository="registry.gitlab.com/gitlab-org/build/cng-mirror/gitlab-sidekiq-ee"
gitlab_unicorn_image_repository="registry.gitlab.com/gitlab-org/build/cng-mirror/gitlab-unicorn-ee"
gitlab_workhorse_image_repository="registry.gitlab.com/gitlab-org/build/cng-mirror/gitlab-workhorse-ee"
fi
# canary uses stable db
[[ "$track" == "canary" ]] && postgres_enabled="false"
env_track=$( echo $track | tr -s '[:lower:]' '[:upper:]' )
env_slug=$( echo ${CI_ENVIRONMENT_SLUG//-/_} | tr -s '[:lower:]' '[:upper:]' )
if [[ "$track" == "stable" ]]; then
# for stable track get number of replicas from `PRODUCTION_REPLICAS`
eval new_replicas=\$${env_slug}_REPLICAS
service_enabled="true"
else
# for all tracks get number of replicas from `CANARY_PRODUCTION_REPLICAS`
eval new_replicas=\$${env_track}_${env_slug}_REPLICAS
fi
if [[ -n "$new_replicas" ]]; then
replicas="$new_replicas"
fi
# Cleanup and previous installs, as FAILED and PENDING_UPGRADE will cause errors with `upgrade`
if [ "$CI_ENVIRONMENT_SLUG" != "production" ] && previousDeployFailed ; then
echo "Deployment in bad state, cleaning up $CI_ENVIRONMENT_SLUG"
delete
cleanup
fi
helm repo add gitlab https://charts.gitlab.io/
helm dep update .
HELM_CMD=$(cat << EOF
helm upgrade --install \
--wait \
--timeout 600 \
--set releaseOverride="$CI_ENVIRONMENT_SLUG" \
--set global.hosts.hostSuffix="$HOST_SUFFIX" \
--set global.hosts.domain="$REVIEW_APPS_DOMAIN" \
--set certmanager.install=false \
--set global.ingress.configureCertmanager=false \
--set global.ingress.tls.secretName=tls-cert \
--set global.ingress.annotations."external-dns\.alpha\.kubernetes\.io/ttl"="10"
--set gitlab.unicorn.resources.requests.cpu=200m \
--set gitlab.sidekiq.resources.requests.cpu=100m \
--set gitlab.gitlab-shell.resources.requests.cpu=100m \
--set redis.resources.requests.cpu=100m \
--set minio.resources.requests.cpu=100m \
--set gitlab.migrations.image.repository="$gitlab_migrations_image_repository" \
--set gitlab.migrations.image.tag="$CI_COMMIT_REF_NAME" \
--set gitlab.sidekiq.image.repository="$gitlab_sidekiq_image_repository" \
--set gitlab.sidekiq.image.tag="$CI_COMMIT_REF_NAME" \
--set gitlab.unicorn.image.repository="$gitlab_unicorn_image_repository" \
--set gitlab.unicorn.image.tag="$CI_COMMIT_REF_NAME" \
--set gitlab.gitaly.image.repository="registry.gitlab.com/gitlab-org/build/cng-mirror/gitaly" \
--set gitlab.gitaly.image.tag="v$GITALY_VERSION" \
--set gitlab.gitlab-shell.image.repository="registry.gitlab.com/gitlab-org/build/cng-mirror/gitlab-shell" \
--set gitlab.gitlab-shell.image.tag="v$GITLAB_SHELL_VERSION" \
--set gitlab.unicorn.workhorse.image="$gitlab_workhorse_image_repository" \
--set gitlab.unicorn.workhorse.tag="$CI_COMMIT_REF_NAME" \
--namespace="$KUBE_NAMESPACE" \
--version="$CI_PIPELINE_ID-$CI_JOB_ID" \
"$name" \
.
EOF
)
echo "Deploying with:"
echo $HELM_CMD
eval $HELM_CMD
}
function delete() {
track="${1-stable}"
name="$CI_ENVIRONMENT_SLUG"
if [[ "$track" != "stable" ]]; then
name="$name-$track"
fi
echo "Deleting release '$name'..."
helm delete --purge "$name" || true
}
function cleanup() {
echo "Cleaning up $CI_ENVIRONMENT_SLUG..."
kubectl -n "$KUBE_NAMESPACE" get ingress,svc,pdb,hpa,deploy,statefulset,job,pod,secret,configmap,pvc,secret,clusterrole,clusterrolebinding,role,rolebinding,sa 2>&1 \
| grep "$CI_ENVIRONMENT_SLUG" \
| awk '{print $1}' \
| xargs kubectl -n "$KUBE_NAMESPACE" delete \
|| true
}