Panic: nodeutils.go:182 AreKubeletConfigsRendered

[montaguethomas]

While debugging #60, I deleted the generated kubelet MachineConfig object. This caused a panic in Compliance Operator.

https://github.com/ComplianceAsCode/compliance-operator/blob/1de5fdbda560164df5927bd55c31d6998f741a02/pkg/utils/nodeutils.go#L190-L192

{"level":"info","ts":1657049016.1875877,"logger":"suitectrl","msg":"Generating events for suite","Request.Namespace":"openshift-compliance","Request.Name":"rhcos4"}
{"level":"info","ts":1657049016.2087462,"logger":"suitectrl","msg":"All scans are in Done phase. Post-processing remediations","Request.Namespace":"openshift-compliance","Request.Name":"rhcos4"}
E0705 19:23:36.208997       1 runtime.go:78] Observed a panic: "invalid memory address or nil pointer dereference" (runtime error: invalid memory address or nil pointer dereference)
goroutine 4677 [running]:
k8s.io/apimachinery/pkg/util/runtime.logPanic({0x18785e0, 0x2c56620})
	/remote-source/deps/gomod/pkg/mod/k8s.io/[email protected]/pkg/util/runtime/runtime.go:74 +0x99
k8s.io/apimachinery/pkg/util/runtime.HandleCrash({0x0, 0x0, 0xc003489600})
	/remote-source/deps/gomod/pkg/mod/k8s.io/[email protected]/pkg/util/runtime/runtime.go:48 +0x75
panic({0x18785e0, 0x2c56620})
	/usr/lib/golang/src/runtime/panic.go:1038 +0x215
github.com/openshift/compliance-operator/pkg/utils.AreKubeletConfigsRendered(0xc000cd2000, {0x1d88400, 0xc00013dec0})
	/remote-source/app/pkg/utils/nodeutils.go:182 +0x638
github.com/openshift/compliance-operator/pkg/controller/compliancesuite.(*ReconcileComplianceSuite).reconcileRemediations(0xc0003faea0, 0xc000ac6700, {0x1d75f90, 0xc0011a4da0})
	/remote-source/app/pkg/controller/compliancesuite/compliancesuite_controller.go:521 +0x6b1
github.com/openshift/compliance-operator/pkg/controller/compliancesuite.(*ReconcileComplianceSuite).Reconcile(0xc0003faea0, {{{0xc000696420, 0x4151cf}, {0xc000a688c4, 0x112b9bb}}})
	/remote-source/app/pkg/controller/compliancesuite/compliancesuite_controller.go:180 +0x698
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler(0xc0008e3440, {0x18e6140, 0xc003489600})
	/remote-source/deps/gomod/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:235 +0x2b3
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem(0xc0008e3440)
	/remote-source/deps/gomod/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:209 +0xc5
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).worker(...)
	/remote-source/deps/gomod/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:188
k8s.io/apimachinery/pkg/util/wait.BackoffUntil.func1(0xc000689f00)
	/remote-source/deps/gomod/pkg/mod/k8s.io/[email protected]/pkg/util/wait/wait.go:155 +0x67
k8s.io/apimachinery/pkg/util/wait.BackoffUntil(0x2000006c0, {0x1d25460, 0xc0006fae10}, 0x1, 0xc000060b40)
	/remote-source/deps/gomod/pkg/mod/k8s.io/[email protected]/pkg/util/wait/wait.go:156 +0xb6
k8s.io/apimachinery/pkg/util/wait.JitterUntil(0xc002f995c0, 0x3b9aca00, 0x0, 0x0, 0x445885)
	/remote-source/deps/gomod/pkg/mod/k8s.io/[email protected]/pkg/util/wait/wait.go:133 +0x89
k8s.io/apimachinery/pkg/util/wait.Until(0x0, 0xc000b01f68, 0xc000b01f78)
	/remote-source/deps/gomod/pkg/mod/k8s.io/[email protected]/pkg/util/wait/wait.go:90 +0x25
created by sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func1
	/remote-source/deps/gomod/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:170 +0x3e9
panic: runtime error: invalid memory address or nil pointer dereference [recovered]
	panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x132ead8]

goroutine 4677 [running]:
k8s.io/apimachinery/pkg/util/runtime.HandleCrash({0x0, 0x0, 0xc003489600})
	/remote-source/deps/gomod/pkg/mod/k8s.io/[email protected]/pkg/util/runtime/runtime.go:55 +0xd8
panic({0x18785e0, 0x2c56620})
	/usr/lib/golang/src/runtime/panic.go:1038 +0x215
github.com/openshift/compliance-operator/pkg/utils.AreKubeletConfigsRendered(0xc000cd2000, {0x1d88400, 0xc00013dec0})
	/remote-source/app/pkg/utils/nodeutils.go:182 +0x638
github.com/openshift/compliance-operator/pkg/controller/compliancesuite.(*ReconcileComplianceSuite).reconcileRemediations(0xc0003faea0, 0xc000ac6700, {0x1d75f90, 0xc0011a4da0})
	/remote-source/app/pkg/controller/compliancesuite/compliancesuite_controller.go:521 +0x6b1
github.com/openshift/compliance-operator/pkg/controller/compliancesuite.(*ReconcileComplianceSuite).Reconcile(0xc0003faea0, {{{0xc000696420, 0x4151cf}, {0xc000a688c4, 0x112b9bb}}})
	/remote-source/app/pkg/controller/compliancesuite/compliancesuite_controller.go:180 +0x698
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler(0xc0008e3440, {0x18e6140, 0xc003489600})
	/remote-source/deps/gomod/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:235 +0x2b3
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem(0xc0008e3440)
	/remote-source/deps/gomod/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:209 +0xc5
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).worker(...)
	/remote-source/deps/gomod/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:188
k8s.io/apimachinery/pkg/util/wait.BackoffUntil.func1(0xc000689f00)
	/remote-source/deps/gomod/pkg/mod/k8s.io/[email protected]/pkg/util/wait/wait.go:155 +0x67
k8s.io/apimachinery/pkg/util/wait.BackoffUntil(0x2000006c0, {0x1d25460, 0xc0006fae10}, 0x1, 0xc000060b40)
	/remote-source/deps/gomod/pkg/mod/k8s.io/[email protected]/pkg/util/wait/wait.go:156 +0xb6
k8s.io/apimachinery/pkg/util/wait.JitterUntil(0xc002f995c0, 0x3b9aca00, 0x0, 0x0, 0x445885)
	/remote-source/deps/gomod/pkg/mod/k8s.io/[email protected]/pkg/util/wait/wait.go:133 +0x89
k8s.io/apimachinery/pkg/util/wait.Until(0x0, 0xc000b01f68, 0xc000b01f78)
	/remote-source/deps/gomod/pkg/mod/k8s.io/[email protected]/pkg/util/wait/wait.go:90 +0x25
created by sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func1
	/remote-source/deps/gomod/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:170 +0x3e9