debian-mirror-gitlab/scripts/review_apps/review-apps.sh
2019-10-12 21:52:04 +05:30

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[[ "$TRACE" ]] && set -x
export TILLER_NAMESPACE="$KUBE_NAMESPACE"
function deploy_exists() {
local namespace="${1}"
local deploy="${2}"
echoinfo "Checking if ${deploy} exists in the ${namespace} namespace..." true
helm status --tiller-namespace "${namespace}" "${deploy}" >/dev/null 2>&1
local deploy_exists=$?
echoinfo "Deployment status for ${deploy} is ${deploy_exists}"
return $deploy_exists
}
function previous_deploy_failed() {
local deploy="${1}"
echoinfo "Checking for previous deployment of ${deploy}" true
helm status "${deploy}" >/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 "${deploy}" | 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 $status
}
function delete() {
if [ -z "$CI_ENVIRONMENT_SLUG" ]; then
echoerr "No release given, aborting the delete!"
return
fi
local name="$CI_ENVIRONMENT_SLUG"
echoinfo "Deleting release '$name'..." true
helm delete --purge "$name"
}
function get_pod() {
local app_name="${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 | 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 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() {
echoinfo "Ensuring the ${KUBE_NAMESPACE} namespace exists..." true
kubectl describe namespace "$KUBE_NAMESPACE" || kubectl create namespace "$KUBE_NAMESPACE"
}
function install_tiller() {
echoinfo "Checking deployment/tiller-deploy status in the ${TILLER_NAMESPACE} namespace..." true
echoinfo "Initiating the Helm client..."
helm init --client-only
# Set toleration for Tiller to be installed on a specific node pool
helm init \
--wait \
--upgrade \
--node-selectors "app=helm" \
--replicas 3 \
--override "spec.template.spec.tolerations[0].key"="dedicated" \
--override "spec.template.spec.tolerations[0].operator"="Equal" \
--override "spec.template.spec.tolerations[0].value"="helm" \
--override "spec.template.spec.tolerations[0].effect"="NoSchedule"
kubectl rollout status -n "$TILLER_NAMESPACE" -w "deployment/tiller-deploy"
if ! helm version --debug; then
echo "Failed to init Tiller."
return 1
fi
}
function install_external_dns() {
local release_name="dns-gitlab-review-app"
local domain
domain=$(echo "${REVIEW_APPS_DOMAIN}" | awk -F. '{printf "%s.%s", $(NF-1), $NF}')
echoinfo "Installing external DNS for domain ${domain}..." true
if ! deploy_exists "${KUBE_NAMESPACE}" "${release_name}" || previous_deploy_failed "${release_name}" ; then
echoinfo "Installing external-dns Helm chart"
helm repo update
# Default requested: CPU => 0, memory => 0
helm install stable/external-dns --version '^2.2.1' \
-n "${release_name}" \
--namespace "${KUBE_NAMESPACE}" \
--set provider="aws" \
--set aws.credentials.secretKey="${REVIEW_APPS_AWS_SECRET_KEY}" \
--set aws.credentials.accessKey="${REVIEW_APPS_AWS_ACCESS_KEY}" \
--set aws.zoneType="public" \
--set aws.batchChangeSize=400 \
--set domainFilters[0]="${domain}" \
--set txtOwnerId="${KUBE_NAMESPACE}" \
--set rbac.create="true" \
--set policy="sync" \
--set resources.requests.cpu=50m \
--set resources.limits.cpu=100m \
--set resources.requests.memory=100M \
--set resources.limits.memory=200M
else
echoinfo "The external-dns Helm chart is already successfully deployed."
fi
}
function create_application_secret() {
echoinfo "Creating the ${CI_ENVIRONMENT_SLUG}-gitlab-initial-root-password secret in the ${KUBE_NAMESPACE} namespace..." true
kubectl create secret generic -n "$KUBE_NAMESPACE" \
"${CI_ENVIRONMENT_SLUG}-gitlab-initial-root-password" \
--from-literal="password=${REVIEW_APPS_ROOT_PASSWORD}" \
--dry-run -o json | kubectl apply -f -
}
function download_chart() {
echoinfo "Downloading the GitLab chart..." true
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-${GITLAB_HELM_CHART_REF}"
echoinfo "Adding the gitlab repo to Helm..."
helm repo add gitlab https://charts.gitlab.io
echoinfo "Building the gitlab chart's dependencies..."
helm dependency build .
}
function deploy() {
local name="$CI_ENVIRONMENT_SLUG"
echoinfo "Deploying ${name}..." true
IMAGE_REPOSITORY="registry.gitlab.com/gitlab-org/build/cng-mirror"
IMAGE_VERSION="${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}"
create_application_secret
HELM_CMD=$(cat << EOF
helm upgrade --install \
--atomic \
--timeout 900 \
--set releaseOverride="$CI_ENVIRONMENT_SLUG" \
--set global.appConfig.enableUsagePing=false \
--set global.imagePullPolicy=Always \
--set global.hosts.hostSuffix="$HOST_SUFFIX" \
--set global.hosts.domain="$REVIEW_APPS_DOMAIN" \
--set global.ingress.configureCertmanager=false \
--set global.ingress.tls.secretName=tls-cert \
--set global.ingress.annotations."external-dns\.alpha\.kubernetes\.io/ttl"="10" \
--set certmanager.install=false \
--set prometheus.install=false \
--set nginx-ingress.controller.service.enableHttp=false \
--set nginx-ingress.controller.replicaCount=2 \
--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" \
--set gitlab.migrations.image.repository="$gitlab_migrations_image_repository" \
--set gitlab.migrations.image.tag="$CI_COMMIT_REF_SLUG" \
--set gitlab.gitaly.image.repository="$gitlab_gitaly_image_repository" \
--set gitlab.gitaly.image.tag="v$GITALY_VERSION" \
--set gitlab.gitlab-shell.image.repository="$gitlab_shell_image_repository" \
--set gitlab.gitlab-shell.image.tag="v$GITLAB_SHELL_VERSION" \
--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.unicorn.workhorse.image="$gitlab_workhorse_image_repository" \
--set gitlab.unicorn.workhorse.tag="$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"
EOF
)
# Default requested: CPU => 100m, memory => 100Mi
HELM_CMD=$(cat << EOF
$HELM_CMD \
--set nginx-ingress.controller.resources.limits.cpu=200m \
--set nginx-ingress.controller.resources.requests.memory=210M \
--set nginx-ingress.controller.resources.limits.memory=420M
EOF
)
# Default requested: CPU => 5m, memory => 5Mi
HELM_CMD=$(cat << EOF
$HELM_CMD \
--set nginx-ingress.defaultBackend.resources.limits.cpu=10m \
--set nginx-ingress.defaultBackend.resources.requests.memory=12M \
--set nginx-ingress.defaultBackend.resources.limits.memory=24M
EOF
)
# Default requested: CPU => 100m, memory => 200Mi
HELM_CMD=$(cat << EOF
$HELM_CMD \
--set gitlab.gitaly.resources.requests.cpu=150m \
--set gitlab.gitaly.resources.limits.cpu=300m \
--set gitlab.gitaly.resources.limits.memory=420M
EOF
)
# Default requested: CPU => 0, memory => 6M
HELM_CMD=$(cat << EOF
$HELM_CMD \
--set gitlab.gitlab-shell.resources.requests.cpu=70m \
--set gitlab.gitlab-shell.resources.limits.cpu=140m \
--set gitlab.gitlab-shell.resources.requests.memory=20M \
--set gitlab.gitlab-shell.resources.limits.memory=40M
EOF
)
# Default requested: CPU => 50m, memory => 650M
HELM_CMD=$(cat << EOF
$HELM_CMD \
--set gitlab.sidekiq.resources.requests.cpu=200m \
--set gitlab.sidekiq.resources.limits.cpu=300m \
--set gitlab.sidekiq.resources.requests.memory=800M \
--set gitlab.sidekiq.resources.limits.memory=1.2G
EOF
)
# Default requested: CPU => 300m + 100m (workhorse), memory => 1.2G + 100M (workhorse)
HELM_CMD=$(cat << EOF
$HELM_CMD \
--set gitlab.unicorn.resources.limits.cpu=800m \
--set gitlab.unicorn.resources.limits.memory=2.6G
EOF
)
# Default requested: CPU => 100m, memory => 64Mi
HELM_CMD=$(cat << EOF
$HELM_CMD \
--set redis.resources.limits.cpu=200m \
--set redis.resources.limits.memory=130M
EOF
)
# Default requested: CPU => 100m, memory => 128Mi
HELM_CMD=$(cat << EOF
$HELM_CMD \
--set minio.resources.limits.cpu=200m \
--set minio.resources.limits.memory=280M
EOF
)
# Default requested: CPU => 0, memory => 0
HELM_CMD=$(cat << EOF
$HELM_CMD \
--set gitlab-runner.resources.requests.cpu=300m \
--set gitlab-runner.resources.limits.cpu=600m \
--set gitlab-runner.resources.requests.memory=300M \
--set gitlab-runner.resources.limits.memory=600M
EOF
)
HELM_CMD=$(cat << EOF
$HELM_CMD \
--namespace="$KUBE_NAMESPACE" \
--version="$CI_PIPELINE_ID-$CI_JOB_ID" \
"$name" .
EOF
)
echoinfo "Deploying with:"
echoinfo "${HELM_CMD}"
eval "${HELM_CMD}"
}
function display_deployment_debug() {
migrations_pod=$(get_pod "migrations");
if [ -z "${migrations_pod}" ]; then
echoerr "Migrations pod not found."
else
echoinfo "Logs tail of the ${migrations_pod} pod..."
kubectl logs -n "$KUBE_NAMESPACE" "${migrations_pod}" | sed "s/${REVIEW_APPS_ROOT_PASSWORD}/[REDACTED]/g"
fi
unicorn_pod=$(get_pod "unicorn");
if [ -z "${unicorn_pod}" ]; then
echoerr "Unicorn pod not found."
else
echoinfo "Logs tail of the ${unicorn_pod} pod..."
kubectl logs -n "$KUBE_NAMESPACE" -c unicorn "${unicorn_pod}" | sed "s/${REVIEW_APPS_ROOT_PASSWORD}/[REDACTED]/g"
fi
}
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 "${task_runner_pod}" ]; then echo "Task runner pod not found" && return; fi
echoinfo "Installing license..." true
echo "${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";
'
}