dc's People
dc's Issues
Some Litmus/Ansible challenges
- Asynchronous task execution in ansible (do things in parallel)
- Ability to obtain on-going stdout of long running tasks, before task completion
- Ability to do diffs of json files/blocks
- Ability to execute "blocks of code" with complex conditionals (ansible can do this against an "imported" taskfile)
- Methods to perform an unit/bdd "test" of ansible playbooks
- Automated quality checks/bots against yaml/playbooks for github repos
- Method to speed up execution of litmusbooks
- Method to achieve idempotency using shell tasks (shell module)
Check for existence of finalizer(s) for any k8s resource custom or native
Motivation
Avoid repetitive codebase such as follows:
// IsFinalizerExistsOnBDC returns true if the object with provided name contains the finalizer.
func (ops *Operations) IsFinalizerExistsOnBDC(bdcName, finalizer string) bool {
for i := 0; i < maxRetry; i++ {
bdcObj, err := ops.BDCClient.Get(bdcName, metav1.GetOptions{})
Expect(err).To(BeNil())
for _, f := range bdcObj.Finalizers {
if f == finalizer {
return true
}
}
time.Sleep(5 * time.Second)
}
return false
}
// IsSPCFinalizerExistsOnSPC returns true if the spc with provided name contains the spc finalizer.
func (ops *Operations) IsSPCFinalizerExistsOnSPC(spcName, spcFinalizer string) bool {
for i := 0; i < maxRetry; i++ {
gotSPC, err := ops.SPCClient.Get(spcName, metav1.GetOptions{})
Expect(err).To(BeNil())
for _, finalizer := range gotSPC.Finalizers {
if finalizer == spcFinalizer {
return true
}
}
time.Sleep(5 * time.Second)
}
return false
}
// IsSPCFinalizerExistsOnBDCs returns true if the all the BDCs( selected by provided list options)
// has spc finalizer on it.
func (ops *Operations) IsSPCFinalizerExistsOnBDCs(listOptions metav1.ListOptions, spcFinalizer string) bool {
for i := 0; i < maxRetry; i++ {
spcFinalizerPresent := true
gotBDCList, err := ops.BDCClient.List(listOptions)
Expect(err).To(BeNil())
for _, BDCObj := range gotBDCList.Items {
BDCObj := BDCObj
if !bdc.BuilderForAPIObject(&BDCObj).BDC.HasFinalizer(spcFinalizer) {
spcFinalizerPresent = false
}
}
if !spcFinalizerPresent {
time.Sleep(5 * time.Second)
} else {
return true
}
}
return false
}
Handle CRD(s) that are stuck due in Terminating state
Use case
Assume a CustomResource with finalizers. However, the logic/pod that removes the finalizers do not exist. When one tries to delete the CR the CR is stuck. When one tries to delete the CRD, this CRD is stuck as well. There should be a mechanism to detect such orphan/stale entries.
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