Allow missing keys in templates by default

Switch to allowing missing keys in jsonpath templates by default.

Add support for allowing/disallowing missing keys in go templates
(default=allow).

Add --allow-missing-template-keys flag to control this behavior
(default=true / allow missing keys).
This commit is contained in:
Andy Goldstein
2017-01-05 15:29:44 -05:00
parent 5503e5e6be
commit 80c5cd8b88
7 changed files with 104 additions and 14 deletions

View File

@@ -1045,6 +1045,33 @@ run_kubectl_get_tests() {
kube::test::if_has_string "${output_message}" "/apis/batch/v1/namespaces/default/jobs 200 OK"
kube::test::if_has_string "${output_message}" "/apis/extensions/v1beta1/namespaces/default/deployments 200 OK"
kube::test::if_has_string "${output_message}" "/apis/extensions/v1beta1/namespaces/default/replicasets 200 OK"
### Test --allow-missing-template-keys
# Pre-condition: no POD exists
create_and_use_new_namespace
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
# Command
kubectl create -f test/fixtures/doc-yaml/admin/limitrange/valid-pod.yaml "${kube_flags[@]}"
# Post-condition: valid-pod POD is created
kubectl get "${kube_flags[@]}" pods -o json
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" 'valid-pod:'
## check --allow-missing-template-keys defaults to true for jsonpath templates
kubectl get "${kube_flags[@]}" pod valid-pod -o jsonpath='{.missing}'
## check --allow-missing-template-keys defaults to true for go templates
kubectl get "${kube_flags[@]}" pod valid-pod -o go-template='{{.missing}}'
## check --allow-missing-template-keys=false results in an error for a missing key with jsonpath
output_message=$(! kubectl get pod valid-pod --allow-missing-template-keys=false -o jsonpath='{.missing}' "${kube_flags[@]}")
kube::test::if_has_string "${output_message}" 'error executing jsonpath "{.missing}": missing is not found'
## check --allow-missing-template-keys=false results in an error for a missing key with go
output_message=$(! kubectl get pod valid-pod --allow-missing-template-keys=false -o go-template='{{.missing}}' "${kube_flags[@]}")
kube::test::if_has_string "${output_message}" 'error executing template "{{.missing}}": template: output:1:2: executing "output" at <.missing>: map has no entry for key "missing"'
# cleanup
kubectl delete pods valid-pod "${kube_flags[@]}"
}
run_kubectl_request_timeout_tests() {

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@@ -7,6 +7,7 @@ advertised-address
algorithm-provider
all-namespaces
allocate-node-cidrs
allow-missing-template-keys
allow-privileged
allowed-not-ready-nodes
anonymous-auth