debian-mirror-gitlab/scripts/review_apps/review-apps.sh
2019-03-02 22:35:43 +05:30

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[[ "$TRACE" ]] && set -x
export TILLER_NAMESPACE="$KUBE_NAMESPACE"
function echoerr() { printf "\033[0;31m%s\n\033[0m" "$*" >&2; }
function echoinfo() { printf "\033[0;33m%s\n\033[0m" "$*" >&2; }
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 \
--replicas 2
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 deployExists() {
local namespace="${1}"
local deploy="${2}"
helm status --tiller-namespace "${namespace}" "${deploy}" >/dev/null 2>&1
return $?
}
function previousDeployFailed() {
set +e
deploy="${1}"
echo "Checking for previous deployment of ${deploy}"
deployment_status=$(helm status ${deploy} >/dev/null 2>&1)
status=$?
# if `status` is `0`, deployment exists, has a status
if [ $status -eq 0 ]; then
echo "Previous deployment found, checking status"
deployment_status=$(helm status ${deploy} | 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="$POSTGRES_ENABLED"
IMAGE_REPOSITORY="registry.gitlab.com/gitlab-org/build/cng-mirror"
IMAGE_VERSION="${CI_PROJECT_NAME#gitlab-}"
gitlab_migrations_image_repository="${IMAGE_REPOSITORY}/gitlab-rails-${IMAGE_VERSION}"
gitlab_sidekiq_image_repository="${IMAGE_REPOSITORY}/gitlab-sidekiq-${IMAGE_VERSION}"
gitlab_unicorn_image_repository="${IMAGE_REPOSITORY}/gitlab-unicorn-${IMAGE_VERSION}"
gitlab_task_runner_image_repository="${IMAGE_REPOSITORY}/gitlab-task-runner-${IMAGE_VERSION}"
gitlab_gitaly_image_repository="${IMAGE_REPOSITORY}/gitaly"
gitlab_shell_image_repository="${IMAGE_REPOSITORY}/gitlab-shell"
gitlab_workhorse_image_repository="${IMAGE_REPOSITORY}/gitlab-workhorse-${IMAGE_VERSION}"
# 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 "$CI_ENVIRONMENT_SLUG" ; then
echo "Deployment in bad state, cleaning up $CI_ENVIRONMENT_SLUG"
delete
cleanup
fi
create_secret
helm repo add gitlab https://charts.gitlab.io/
helm dep update .
HELM_CMD=$(cat << EOF
helm upgrade --install \
--wait \
--timeout 600 \
--set global.appConfig.enableUsagePing=false \
--set releaseOverride="$CI_ENVIRONMENT_SLUG" \
--set global.hosts.hostSuffix="$HOST_SUFFIX" \
--set global.hosts.domain="$REVIEW_APPS_DOMAIN" \
--set certmanager.install=false \
--set prometheus.install=false \
--set global.ingress.configureCertmanager=false \
--set global.ingress.tls.secretName=tls-cert \
--set global.ingress.annotations."external-dns\.alpha\.kubernetes\.io/ttl"="10"
--set nginx-ingress.defaultBackend.resources.requests.memory=7Mi \
--set nginx-ingress.controller.resources.requests.memory=440M \
--set nginx-ingress.controller.replicaCount=2 \
--set gitlab.unicorn.resources.requests.cpu=200m \
--set gitlab.sidekiq.resources.requests.cpu=100m \
--set gitlab.sidekiq.resources.requests.memory=800M \
--set gitlab.gitlab-shell.resources.requests.cpu=100m \
--set redis.resources.requests.cpu=100m \
--set minio.resources.requests.cpu=100m \
--set gitlab.migrations.image.repository="$gitlab_migrations_image_repository" \
--set gitlab.migrations.image.tag="$CI_COMMIT_REF_SLUG" \
--set gitlab.sidekiq.image.repository="$gitlab_sidekiq_image_repository" \
--set gitlab.sidekiq.image.tag="$CI_COMMIT_REF_SLUG" \
--set gitlab.unicorn.image.repository="$gitlab_unicorn_image_repository" \
--set gitlab.unicorn.image.tag="$CI_COMMIT_REF_SLUG" \
--set gitlab.task-runner.image.repository="$gitlab_task_runner_image_repository" \
--set gitlab.task-runner.image.tag="$CI_COMMIT_REF_SLUG" \
--set gitlab.gitaly.image.repository="registry.gitlab.com/gitlab-org/build/cng-mirror/gitaly" \
--set gitlab.gitaly.image.tag="v$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="$CI_COMMIT_REF_SLUG" \
--set nginx-ingress.controller.config.ssl-ciphers="ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA:ECDHE-RSA-AES128-SHA:AES256-GCM-SHA384:AES128-GCM-SHA256:AES256-SHA256:AES128-SHA256:AES256-SHA:AES128-SHA:!aNULL:!eNULL:!EXPORT:!DES:!MD5:!PSK:!RC4" \
--namespace="$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="$CI_ENVIRONMENT_SLUG"
if [ -z "$CI_ENVIRONMENT_SLUG" ]; then
echo "No release given, aborting the delete!"
return
fi
if [[ "$track" != "stable" ]]; then
name="$name-$track"
fi
if ! deployExists "${KUBE_NAMESPACE}" "${name}"; then
echo "The release $name doesn't exist, aborting the cleanup!"
return
fi
echo "Deleting release '$name'..."
helm delete --purge "$name" || true
}
function cleanup() {
if [ -z "$CI_ENVIRONMENT_SLUG" ]; then
echo "No release given, aborting the delete!"
return
fi
echo "Cleaning up '$CI_ENVIRONMENT_SLUG'..."
kubectl -n "$KUBE_NAMESPACE" delete \
ingress,svc,pdb,hpa,deploy,statefulset,job,pod,secret,configmap,pvc,secret,clusterrole,clusterrolebinding,role,rolebinding,sa \
-l release="$CI_ENVIRONMENT_SLUG" \
|| true
}
function install_external_dns() {
local release_name="dns-gitlab-review-app"
local domain=$(echo "${REVIEW_APPS_DOMAIN}" | awk -F. '{printf "%s.%s", $(NF-1), $NF}')
if ! deployExists "${KUBE_NAMESPACE}" "${release_name}" || previousDeployFailed "${release_name}" ; then
echo "Installing external-dns helm chart"
helm repo update
helm install stable/external-dns \
-n "${release_name}" \
--namespace "${KUBE_NAMESPACE}" \
--set provider="aws" \
--set aws.secretKey="${REVIEW_APPS_AWS_SECRET_KEY}" \
--set aws.accessKey="${REVIEW_APPS_AWS_ACCESS_KEY}" \
--set aws.zoneType="public" \
--set domainFilters[0]="${domain}" \
--set txtOwnerId="${KUBE_NAMESPACE}" \
--set rbac.create="true" \
--set policy="sync"
fi
}
function get_pod() {
local app_name="${1}"
local status="${2-Running}"
get_pod_cmd="kubectl get pods -n ${KUBE_NAMESPACE} --field-selector=status.phase=${status} -lapp=${app_name},release=${CI_ENVIRONMENT_SLUG} --no-headers -o=custom-columns=NAME:.metadata.name"
echoinfo "Running '${get_pod_cmd}'"
while true; do
local pod_name="$(eval $get_pod_cmd)"
[[ "${pod_name}" == "" ]] || break
echoinfo "Waiting till '${app_name}' pod is ready";
sleep 5;
done
echoinfo "The pod name is '${pod_name}'."
echo "${pod_name}"
}
function add_license() {
if [ -z "${REVIEW_APPS_EE_LICENSE}" ]; then echo "License not found" && return; fi
task_runner_pod=$(get_pod "task-runner");
if [ -z "${task_runner_pod}" ]; then echo "Task runner pod not found" && return; fi
echo "${REVIEW_APPS_EE_LICENSE}" > /tmp/license.gitlab
kubectl -n "$KUBE_NAMESPACE" cp /tmp/license.gitlab ${task_runner_pod}:/tmp/license.gitlab
rm /tmp/license.gitlab
kubectl -n "$KUBE_NAMESPACE" exec -it ${task_runner_pod} -- /srv/gitlab/bin/rails runner -e production \
'
content = File.read("/tmp/license.gitlab").strip;
FileUtils.rm_f("/tmp/license.gitlab");
unless License.where(data:content).empty?
puts "License already exists";
Kernel.exit 0;
end
unless License.new(data: content).save
puts "Could not add license";
Kernel.exit 0;
end
puts "License added";
'
}
function get_job_id() {
local job_name="${1}"
local query_string="${2:+&${2}}"
local max_page=3
local page=1
while true; do
local url="https://gitlab.com/api/v4/projects/${CI_PROJECT_ID}/pipelines/${CI_PIPELINE_ID}/jobs?per_page=100&page=${page}${query_string}"
echoinfo "GET ${url}"
local job_id=$(curl --silent --show-error --header "PRIVATE-TOKEN: ${API_TOKEN}" "${url}" | jq "map(select(.name == \"${job_name}\")) | map(.id) | last")
[[ "${job_id}" == "null" && "${page}" -lt "$max_page" ]] || break
let "page++"
done
if [[ "${job_id}" == "" ]]; then
echoerr "The '${job_name}' job ID couldn't be retrieved!"
else
echoinfo "The '${job_name}' job ID is ${job_id}"
echo "${job_id}"
fi
}
function play_job() {
local job_name="${1}"
local job_id=$(get_job_id "${job_name}" "scope=manual");
if [ -z "${job_id}" ]; then return; fi
local url="https://gitlab.com/api/v4/projects/${CI_PROJECT_ID}/jobs/${job_id}/play"
echoinfo "POST ${url}"
local job_url=$(curl --silent --show-error --request POST --header "PRIVATE-TOKEN: ${API_TOKEN}" "${url}" | jq ".web_url")
echoinfo "Manual job '${job_name}' started at: ${job_url}"
}
function wait_for_job_to_be_done() {
local job_name="${1}"
local query_string="${2}"
local job_id=$(get_job_id "${job_name}" "${query_string}");
if [ -z "${job_id}" ]; then return; fi
echoinfo "Waiting for the '${job_name}' job to finish..."
local url="https://gitlab.com/api/v4/projects/${CI_PROJECT_ID}/jobs/${job_id}"
echoinfo "GET ${url}"
# In case the job hasn't finished yet. Keep trying until the job times out.
local interval=30
local elapsed_seconds=0
while true; do
local job_status=$(curl --silent --show-error --header "PRIVATE-TOKEN: ${API_TOKEN}" "${url}" | jq ".status" | sed -e s/\"//g)
[[ "${job_status}" == "pending" || "${job_status}" == "running" ]] || break
printf "."
let "elapsed_seconds+=interval"
sleep ${interval}
done
local elapsed_minutes=$((elapsed_seconds / 60))
echoinfo "Waited '${job_name}' for ${elapsed_minutes} minutes."
if [[ "${job_status}" == "failed" ]]; then
echoerr "The '${job_name}' failed."
elif [[ "${job_status}" == "manual" ]]; then
echoinfo "The '${job_name}' is manual."
else
echoinfo "The '${job_name}' passed."
fi
}