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Properly detect unsupported API errors

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This can happen when Custom Resource Definitions do not exist on the
cluster. For example, because only a subset of the Flux controllers are
installed on the cluster.

Previously, the detection was based on a combination of error type and
string matching. However, a more reliable (and maintained)
`apimeta.IsNoMatchError` checker is available upstream. Making it less
likely this suddenly stops to matching properly when Kubernetes changes
things.

Signed-off-by: Hidde Beydals <hidde@hhh.computer>
This commit is contained in:
Hidde Beydals
2023-12-13 13:10:37 +01:00
parent bae59fde6a
commit bf6754e20c
3 changed files with 5 additions and 10 deletions
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5
cmd/flux/get.go
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@@ -18,7 +18,6 @@ package main
import (
"context"
"errors"
"fmt"
"os"
"strings"
@@ -28,7 +27,6 @@ import (
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/watch"
"k8s.io/client-go/discovery"
watchtools "k8s.io/client-go/tools/watch"
"sigs.k8s.io/controller-runtime/pkg/client"
@@ -178,8 +176,7 @@ func (get getCommand) run(cmd *cobra.Command, args []string) error {
err = kubeClient.List(ctx, get.list.asClientList(), listOpts...)
if err != nil {
var discErr *discovery.ErrGroupDiscoveryFailed
if getAll && (strings.Contains(err.Error(), "no matches for kind") || errors.As(err, &discErr)) {
if getAll && apimeta.IsNoMatchError(err) {
return nil
}
return err