Migrate project level clusters with no Kubernetes namespace to unmanaged62772-migrate-managed-clusters-to-unmanaged

These clusters were created before we introduced the
option to manage your own cluster, and not having a
Kubernetes namespace present means that we have tried
and failed to create one - and therefore we cannot manage
your cluster for you.

The 5 minute window should prevent a race condition
where a cluster has only just been created and we
haven't had a chance to create any resources for it
yet.

1 files changed, 55 insertions, 0 deletions

diff --git a/spec/migrations/migrate_legacy_managed_clusters_to_unmanaged_spec.rb b/spec/migrations/migrate_legacy_managed_clusters_to_unmanaged_spec.rb
new file mode 100644
index 00000000000..93426f1f273
--- /dev/null
+++ b/spec/migrations/migrate_legacy_managed_clusters_to_unmanaged_spec.rb
@@ -0,0 +1,55 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+require Rails.root.join('db', 'post_migrate', '20190606163724_migrate_legacy_managed_clusters_to_unmanaged.rb')
+
+describe MigrateLegacyManagedClustersToUnmanaged, :migration do
+  let(:cluster_type) { 'project_type' }
+  let(:created_at) { 1.hour.ago }
+
+  let!(:cluster) do
+    table(:clusters).create!(
+      name: 'cluster',
+      cluster_type: described_class::Cluster.cluster_types[cluster_type],
+      managed: true,
+      created_at: created_at
+    )
+  end
+
+  it 'marks the cluster as unmanaged' do
+    migrate!
+    expect(cluster.reload).not_to be_managed
+  end
+
+  context 'cluster is not project type' do
+    let(:cluster_type) { 'group_type' }
+
+    it 'does not update the cluster' do
+      migrate!
+      expect(cluster.reload).to be_managed
+    end
+  end
+
+  context 'cluster has a kubernetes namespace associated' do
+    before do
+      table(:clusters_kubernetes_namespaces).create!(
+        cluster_id: cluster.id,
+        namespace: 'namespace'
+      )
+    end
+
+    it 'does not update the cluster' do
+      migrate!
+      expect(cluster.reload).to be_managed
+    end
+  end
+
+  context 'cluster was recently created' do
+    let(:created_at) { 2.minutes.ago }
+
+    it 'does not update the cluster' do
+      migrate!
+      expect(cluster.reload).to be_managed
+    end
+  end
+end