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# frozen_string_literal: true
module QA
module Service
module ClusterProvider
class K3s < Base
def validate_dependencies
Runtime::ApplicationSettings.set_application_settings(allow_local_requests_from_web_hooks_and_services: true)
end
def setup
@k3s = Service::DockerRun::K3s.new.tap do |k3s|
k3s.remove!
k3s.register!
shell "kubectl config set-cluster k3s --server https://#{k3s.host_name}:6443 --insecure-skip-tls-verify"
shell 'kubectl config set-credentials default --username=node --password=some-secret'
shell 'kubectl config set-context k3s --cluster=k3s --user=default'
shell 'kubectl config use-context k3s'
wait_for_server(k3s.host_name) do
shell 'kubectl version'
wait_for_namespaces do
# install local storage
shell 'kubectl apply -f https://raw.githubusercontent.com/rancher/local-path-provisioner/master/deploy/local-path-storage.yaml'
# patch local storage
shell %(kubectl patch storageclass local-path -p '{"metadata": {"annotations":{"storageclass.kubernetes.io/is-default-class":"true"}}}')
end
end
end
end
def teardown
Runtime::ApplicationSettings.set_application_settings(allow_local_requests_from_web_hooks_and_services: false)
@k3s&.remove!
end
def set_credentials(admin_user)
end
# Fetch "real" certificate
# See https://github.com/rancher/k3s/issues/27
def filter_credentials(credentials)
kubeconfig = YAML.safe_load(@k3s.kubeconfig)
ca_certificate = kubeconfig.dig('clusters', 0, 'cluster', 'certificate-authority-data')
credentials.merge('data' => credentials['data'].merge('ca.crt' => ca_certificate))
end
private
def wait_for_server(host_name)
print "Waiting for K3s server at `https://#{host_name}:6443` to become available "
60.times do
if service_available?('kubectl version')
return yield if block_given?
return true
end
sleep 1
print '.'
end
raise 'K3s server never came up'
end
def wait_for_namespaces
print 'Waiting for k8s namespaces to populate'
60.times do
if service_available?('kubectl get pods --all-namespaces | grep --silent "Running"')
return yield if block_given?
return true
end
sleep 1
print '.'
end
raise 'K8s namespaces didnt populate correctly'
end
def service_available?(command)
system("#{command} > /dev/null 2>&1")
end
end
end
end
end
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