Support pre/post install/delete hooks

Update instance create and delete handler to support pre/post install/delete hooks. 

Add hook.go: to execute and delete hook (base on delete policy). 

Implement watchUntilReady in generic plugin to wait for readiness of hook rss.

Add hook_sorter.go: to sort hook based on weight.

User can define timeout for each type of hooks in overwrite-values. Variable name is k8s-rb-instance-pre-install-timeout (default 60s),
k8s-rb-instance-post-install-timeout (default 600s), k8s-rb-instance-pre-delete-timeout (default 60s) and k8s-rb-instance-post-delete-timeout (600s). This is timeout
for each hook of a hook event (not a total time).

Add recovery capability to continue the execution of instantiation (create or delete) when the plugin stop unexpectedly.
For now, this is disabled because we have data-race issue during test. Will enable when we find the solution.

Add basic test for hooks (in hook_test.go)

Add test for hook in instance_test

For instance get request, we can request for full data by adding query param to the request: full=true.

Issue-ID: MULTICLOUD-1347
Signed-off-by: hthieu <huu_trung.thieu@nokia-bell-labs.com>
Change-Id: If2b4a90831b9bfce1af8b926e4062a7d706bee08

1 files changed, 23 insertions, 0 deletions

diff --git a/src/k8splugin/mock_files/mock_yamls/job.yaml b/src/k8splugin/mock_files/mock_yamls/job.yaml
new file mode 100644
index 00000000..e2028f40
--- /dev/null
+++ b/src/k8splugin/mock_files/mock_yamls/job.yaml
@@ -0,0 +1,23 @@
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: job
+  labels:
+    app: job
+  annotations:
+    "helm.sh/hook": post-install
+    "helm.sh/hook-weight": "-8"
+    "helm.sh/hook-delete-policy": hook-succeeded
+spec:
+  backoffLimit: 3
+  template:
+    metadata:
+      labels:
+        app: job
+    spec:
+      shareProcessNamespace: true
+      restartPolicy: Never
+      containers:
+        - name: sleep-container
+          image: "busybox"
+          command: ["sleep", "10"]
\ No newline at end of file