3e44c42989
The KRM based k8s applier solves multiple design problems which were introduced in previous airshipctl generation, making apply code and process more clear, reliable and readable. In particular: * k8s applier now is a KRM function and it allows the end user to choose or implement desired backend for k8s apply operations; * the related amount of code was reduced by three times, multiple unused and unnecessary structs/interfaces/design patterns were removed or rewrited in more clean and efficient way; * removed cli-utils dependency from airshipctl; * fixed several bugs and code issues, such as incorrect printing of tables, duplicated unit tests, improper generation and applying inventory config map, etc; * cli-utils version used in KRM function was bumped to 0.26.0; * phases with duplicated k8s resources were removed or fixed; * unit test coverage increased to 83.1%; * KRM function logs were integrated with klog library which allows to observe logs directly from cli-utils and other dependent libs. Change-Id: Ief509f1d6abefd53caf7fcffc4e36b0319815373 Signed-off-by: Ruslan Aliev <raliev@mirantis.com> Closes: #646
70 lines
2.3 KiB
Go
Executable File
70 lines
2.3 KiB
Go
Executable File
/*
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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https://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package poller
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import (
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"context"
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"strings"
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"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
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"k8s.io/apimachinery/pkg/labels"
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"k8s.io/klog/v2"
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"sigs.k8s.io/cli-utils/pkg/kstatus/polling/clusterreader"
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"sigs.k8s.io/controller-runtime/pkg/client"
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)
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const allowedApplyErrors = 3
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// CachingClusterReader is wrapper for kstatus.CachingClusterReader implementation
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type CachingClusterReader struct {
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Cr *clusterreader.CachingClusterReader
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applyErrors []error
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}
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// Get is a wrapper for kstatus.CachingClusterReader Get method
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func (c *CachingClusterReader) Get(ctx context.Context, key client.ObjectKey, obj *unstructured.Unstructured) error {
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return c.Cr.Get(ctx, key, obj)
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}
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// ListNamespaceScoped is a wrapper for kstatus.CachingClusterReader ListNamespaceScoped method
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func (c *CachingClusterReader) ListNamespaceScoped(
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ctx context.Context,
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list *unstructured.UnstructuredList,
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namespace string,
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selector labels.Selector) error {
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return c.Cr.ListNamespaceScoped(ctx, list, namespace, selector)
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}
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// ListClusterScoped is a wrapper for kstatus.CachingClusterReader ListClusterScoped method
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func (c *CachingClusterReader) ListClusterScoped(
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ctx context.Context,
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list *unstructured.UnstructuredList,
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selector labels.Selector) error {
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return c.Cr.ListClusterScoped(ctx, list, selector)
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}
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// Sync is a wrapper for kstatus.CachingClusterReader Sync method, allows to filter specific errors
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func (c *CachingClusterReader) Sync(ctx context.Context) error {
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err := c.Cr.Sync(ctx)
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if err != nil && strings.Contains(err.Error(), "request timed out") {
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c.applyErrors = append(c.applyErrors, err)
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if len(c.applyErrors) <= allowedApplyErrors {
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klog.V(2).Infof("timeout error occurred during sync: '%v', skipping", err)
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return nil
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}
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}
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return err
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}
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